Glass fiber as a reinforced plasticReinforcing materialWhen applied, the biggest feature is the high tensile strength.Tensile strength atStandard status6.3~6.9 g/d, 5.4~5.8 g/d in wet state.
Heat resistance
Good heat resistance, no influence on strength when the temperature reaches 300 ℃.
Raw material and its application: glass fiber ratioOrganic fibreHigh temperature resistance, incombustibility, corrosion resistance, good heat insulation and sound insulation,tensile strengthHigh,Electrical insulationOK.But it is fragile,Abrasion resistancePoor.Used for manufacturingreinforced plastic Or enhancedrubberAs a reinforcing material, glass fiber has the following characteristics, which make it more widely used than other types of fibers,Development speedIts characteristics are listed as follows:
(1) High tensile strength and low elongation (3%).
(2) High elasticity coefficient and good rigidity.
(3)Elastic limitDue to large internal elongation and high tensile strength, it absorbsImpact energyLarge.
(7)ProcessabilityGood, can be made into strands, bundles, felt, weaving and other different forms of products.
(8) Transparency can penetrate light.
(9) Good adhesion with resin.
(10) The price is cheap.
(11) It is not easy to burn and can be melted into glass beads at high temperature.
Printing materials
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Glass fiber itself has the characteristics of good insulation, high temperature resistance and corrosion resistance, and it is also used by 3d printing technology
Material classification
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Glass fiber rod
Glass fiber can be divided into continuous fiber, fixed length fiber andGlass wool；According to glass composition, it can be divided into alkali free, chemical resistant, high alkali, medium alkali, high strength, highModulus of elasticityAnd alkali resistant (alkali resistant) glass fiber, etc.
The main raw materials for producing glass fiber are:Quartz sand、aluminaandPyrophyllite、limestone、dolomite、boric acid、Soda ash、Mirabilite、fluoriteEtc.Production methodThere are two types: one is to directly make molten glass into fiber;One is to make molten glass into glass balls or rods with a diameter of 20mm, and then heat them in various waysremeltingAfter that, very fine fibers with a diameter of 3~80 μ m are made.adoptPlatinum alloyThe plate is mechanically drawnDrawdownAn infinitely long fiber called continuous glass fiberLong fibre。adoptRollerOr discontinuous fiber made by air flow, called fixed length glass fiber, generally calledShort fibre。
Glass fiber can be divided into different grades according to its composition, nature and use.PressStandard gradeIt is stipulated that Class E glass fiber is the most commonly used and widely used in electricityInsulating material；Class SIt is a special fiber.
Also called medium alkali glass, it is characterized byChemical resistanceespeciallyAcid resistanceBetter than alkali free glass, butElectrical performancePoor,mechanical strengthlower thanAlkali free glass fiber10%~20%, usually overseasMedium alkali glass fiberIncluding a certain amount ofBoron trioxideHowever, the medium alkali glass fiber in China does not contain boron at all.In foreign countries, alkali glass fiber is only used to produce corrosion-resistant glass fiber products, such as glass fiberSurface feltEtc., also used to enhanceasphaltRoof materials, but in China, alkali glass fiber accounts for more than half (60%) of the output of glass fiber, which is widely used for reinforcing glass fiber reinforced plastics andFilter fabricThe production of wrapping fabric has strong competitiveness because its price is lower than that of alkali free glass fiber.
It is characterized by high strength, high modulusTensile strength of fiber2800MPa, compared with alkali free glass fibertensile strengthIt is about 25% higher, and the elastic modulus is 86000MPa, which is higher than the strength of E-glass fiber.Made from themFRP productsIt is widely used in military industry, space, bulletproof armor and sports equipment.However, due to the high price, it can not be popularized in the civil field, and the world output is only about several thousand tons.
Also called alkali resistant glass fiber,Alkali resistant glass fiberIt is the rib material of glass fiber reinforced (cement) concrete (GRC for short), which is 100%Inorganic fiber, in non load bearingCement componentSteel andasbestosThe ideal ofsuccedaneum。The characteristics of alkali resistant glass fiber areAlkali resistanceGood, can effectively resist the erosion of high alkali substances in cement, with strong grip, elastic modulus, impact resistance, tensile strengthBending strengthExtremely high, incombustible, frost resistant, temperature resistant, humidity resistant, crack resistantImpermeabilityExcellent, with strong designability, easy molding and other characteristics, alkali resistant glass fiber is a new type of green environmental protection widely used in high-performance reinforced (cement) concreteReinforcements。
A Glass
Also called high alkali glass, it is a typical sodiumSilicate glass, becauseWater resistanceVery poor, rarely used in the production of glass fiber.
E-CR glass
It is an improved boron free and alkali free glass, which is used to produce glass fiber with good acid resistance and water resistance. Its water resistance is 7-8 times better than that of alkali free glass fiber, and its acid resistance is also much better than that of medium alkali glass fiber. It is specially designed forUnderground pipeline、Storage tankAnd other new varieties.
D Glass
Also called low dielectric glass, used for productionDielectric strengthGood low dielectric glass fiber.
In addition to the above glass fiber components, a new kind of alkali free glass fiber has emerged, which is completely boron free, thus reducing environmental pollutionInsulation performanceAnd mechanical properties are similar to the traditional E glass.In addition, there is a kind of glass fiber with double glass components, which has been used in the production of glass wool, and is said to have potential in the use of glass fiber reinforced plastics.In addition, there is fluorine free glass fiber, which is an improved alkali free glass fiber developed for environmental protection requirements.
Identify high alkali glass fiber
The simple test method is to put the fiber in boiling water and boil it for 6-7h. If it is high alkali glass nitrate fiber, the warp and weft fibers will become loose after boiling.According to different standards, glass fiberclassification method Many, generally from the length and diameter, composition and performance.
There are many processes for crucible wire drawing. First, the glass raw materials are melted into glass balls at high temperature, then the glass balls are melted again, and then made by high-speed wire drawingGlass fiber precursor。This process has high energy consumptionForming processUnstablelabour productivityAll kinds of low disadvantages are basically eliminated by large glass fiber manufacturers.
Glass fiber process flow diagram
Tank furnace wire drawing handlePyrophylliteAnd other raw materials are melted in the kilnGlass solution, after removing bubblesPasswayIt is transported to the perforated bushing and drawn into glass fiber at high speedProtofilament。The kiln can connect hundreds of leak plates through multiple channels for simultaneous production.This process is simpleEnergy Saving Stable molding, high efficiency and high yield, convenient for large-scaleAutomated productionIt has become the international mainstream production process, and the glass fiber produced by this process accounts for more than 90% of the global output.
Test standard
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The tensile strength of glass fiber is high and the elongation is small (3%)Method standardyes:
UntwistedrovingIt is composed of parallel strands orMonofilamentBundled.The roving can be divided into alkali free glass roving and medium alkali glass roving according to the glass composition.The diameter of glass fiber used for producing glass roving ranges from 12 to 23 μ m.The number of untwisted roving is from 150 to 9600 (tex).Twistless roving can be directly used for somecompound materialIn process molding methods, such as windingPultrusion processBecause of its uniform tension, it can also be woven into the roving fabric without twist, and in some applications, it can further cut the roving without twist.
classification
Performance and application
Jet roving
① Good cutting performance, less static electricity generated during continuous high-speed cutting;
② After the untwisted roving is cut, the efficiency of dispersing into filaments should be high, that is, the beam splitting rate should be high, usually more than 90%;
③ The chopped precursor has excellent mold covering property, which can cover all corners of the mold;
④resinQuick soaking and easy to be soakedRollerRoll flat and easy to drive away bubbles;
⑤ The spinning cylinder has good degumming performance and is thickYarn densityUniform, suitable for various spray guns and fiber conveying systems.Jet roving is made of multi strand filaments, each strand contains 200 glass monofilaments.
Twistless roving for SMC
SMCSheet molding compound, mainly used to press automobile parts, bathtubs, water tank platesPurification tank, various seats, etc.Twistless roving for SMC is in the process of manufacturing SMCsheetIt should be cut into lin (25mm) and dispersed in the resin paste. Therefore, the requirement for the roving used for SMC is that it has good chopping property, less hairiness, good anti-static property, and will not adhere to the knife roll when cutting.For colored SMC, untwisted roving should be soaked in resin paste with high pigment content.Generally, the SMC roving is 2400 tex, and 4800 tex can be used in a few cases.
Twistless roving for winding
The winding method is used to manufactureFRP pipe, storage tank, etc.The number of untwisted roving for winding is from 1200 to 9600. Large pipes and storage tanks tend to be wound with direct untwisted roving, such as 4800 tex direct untwisted roving.
① It has good banding property and is flat;
② The untwisted roving has good unwinding property and is not easy to unwind from the bobbinUnseating, does not form "bird nest" like filaments;
⑤ The untwisted roving has good permeability and is easy to be wetted and soaked by resin when passing through the resin tank.
Pultrusion roving
Pultrusion is used to manufacture various profiles with consistent cross section, which is characterized by high glass fiber content and high unidirectional strength.The untwisted roving for pultrusion can be either a combination of multi strand filaments or a direct untwisted roving, with the linear density ranging from 1100 to 4400.Various performance requirements are basically the same as those of winding roving.
Roving for weaving
An important use of roving is to weave various thickness of checkered cloth or one-way roving fabric, which are mostly used in hand lay up FRP molding process.
③ The roving for weaving needs to be forced dried before weaving;
④ The tension of untwisted roving is even, and the drape should meet certain standards;
⑤ The untwisted roving has good unwinding property;
⑥ The untwisted roving has good permeability.
Untwisted roving for preform
In the preform process, the untwisted roving is chopped and sprayed on the predetermined shaped web, and a small amount of resin is sprayed at the same time toFibrous webFix and form, and then move the formed fiber mesh intoMetal moldAnd injecting resin into hot pressing to form the product.The performance requirements for this process of roving are basically the same as those for jet roving.
Untwisted roving fabric
fiberglass woven roving
Checkers are rovingsPlain fabricIt is an important base material for hand laid FRP.The strength of checkered cloth is mainly in the warp and weft direction of the fabric. For the occasions requiring high warp or weft strength, it can also be woven into one-way checkered cloth, which can be arranged with more rovings in the warp or weft direction.
Checkeredquality requirementAs follows: ① The fabric is uniform, the edge of the cloth is straight, and the surface of the cloth is flat and mat likestain、Fuzzing, creases, wrinkles, etc.; ②ClassicsWeft density, area weight,ClothAnd roll lengthCompliance with standards；③windingOn the firm paper core, the winding shall be neat; ④Fast, good resinPermeability；⑤Dry and wet mechanical strength of laminated materials made of fabricsShould beMeet the requirements.
Cut the glass precursor (sometimes with untwisted roving) into 50mm long, lay it on the mesh belt randomly but evenly, and then apply emulsionbinderOr spread the powder binder, heat and solidify it, and then bond itChopped strandFelt.
① The area quality is uniform along the width direction; ②The chopped strand is evenly distributed in the mat surface, withoutMacroporeEye formation and even distribution of adhesive; ③It has moderate dry felt strength; ④Excellent resin infiltration and permeability.
Chopped felts are mainly used in hand lay up, continuous plate making, mold pressing and SMC processes.
continuous strand mat
The glass precursor formed in the process of wire drawing or the continuous precursor discharged from the precursor cylinder is laid on the continuous moving mesh belt in the shape of 8 and bonded by powder binder.The fibers in the continuous glass fiber mat are continuous, so its reinforcement effect on composite materials is better than that of the short cut mat.
Mainly used in pultrusion, RTM, pressure bag andGlass matReinforced thermoplastics（GMT）And other processes.
Surface felt
FRP products usually need to form a resin rich layer, which is generally achieved by using the medium alkali glass surface mat.This kind of mat is made of medium alkali glass (C), so it gives FRP chemical resistance, especially acid resistance. At the same time, because the mat is thin and the diameter of glass fiber is smaller, it can absorb more resin to formResin rich layer, covering the glassFiber reinforced materials(such as checkered cloth)Modificatory effect。
Needled felt or divided intoChopped fibreNeedle felt and continuous strand needle felt.The chopped fiber needle felt is to cut the glass fiber roving into 50 mm and place it randomly on theConveyor beltAnd then use a needle with barb to prick the short cut fiber into the substratecrochet hookAnd some fibers are brought up to formthree-dimensional structure。The substrate used can be glass fiber or thin fabric of other fibers, and this needle punched felt has fuzziness.Another type of continuous strand needle felt is that the continuous glass strand is randomly thrown on the continuous mesh belt by the wire throwing deviceNeedle plateNeedling, forming a three-dimensional structure of felt with interconnected fibers.
Its main uses include insulationSound insulation materialHeat lining materials and filter materials can also be used in the production of glass fiber reinforced plastics, but the strength of the glass fiber reinforced plastics is low and the scope of use is limited;The other type of continuous strand needle felt is mainly used for the production of glass fiber reinforced thermoplastic punching sheets.
Suture felt
Chopped glass fibreAvailable from 50mm to 60cm longSewing machineIt can be sewn into chopped fiber or long fiber felt. The former can replace the chopped fiber felt bonded by the traditional adhesive in several uses, and the latter can replace the continuous strand felt to a certain extent.Their common advantage is that they do not contain binder, which avoidsProduction processAt the same time, it has good permeability, good bonding performance and low price.
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milled fiber
Glass fiber yarn
(1) Chopped strand: The chopped strand is divided into dry chopped strand and wet chopped strand.The former is used inreinforced plastic In production, the latter is used for papermaking.The chopped precursor used for FRP is divided into reinforcementThermosetting resin（BMC）Use chopped strand and reinforcementThermoplastic resinThere are two types of chopped strand.To enhanceThermoplasticIt is required to use alkali free glass fiber with high strength andElectrical insulationGood, short strand has good bunching property, good fluidity and high whiteness.enhanceThermosetting plasticsThe chopped strand requires good bunching property, easy resin penetration, good mechanical strength and electrical properties.
(2) Milled fiber: Milled fiber is composed ofHammer millorBall millIt is made by grinding chopped fibers.The ground fiber is mainly used as the reinforcement material in the reinforced reaction injection process (RRIM), and as the resin filler in the manufacture of casting products, molds and other products to improvesurface crack Phenomenon, decreaseMoulding shrinkage It can also be used as reinforcement material.
（1）Glass clothThe glass cloth produced in China is divided into alkali free and medium alkali, and most of them are alkali free glass cloth abroad.Glass cloth is mainly used to produce various kinds of electricityInsulating laminate、Printed circuit boardVarious vehicle bodies, storage tankscraft , mold, etc.Medium alkali glass cloth is mainly used in the production of plastic coated packaging cloth and corrosion resistant occasions.The properties of fabrics are determined by fiber propertiesDensity of longitude and latitude, yarn structure and texture.The warp and weft density is determined by the yarn structure and weave pattern.The warp and weft, together with the yarn structure, determine thephysical property, such as weight, thickness andBreaking strengthEtc.There are five basic weaves: plain, twillSatin grain, Ribs andMat pattern。
(2) Glass tape: glass tape is divided into webbing tape and non webbing tape（BurrThe main weaving method is plain weave.Glass tape is often used to make high-strengthDielectric propertiesGood electrical equipment parts.
（3）Unidirectional fabric: Unidirectional fabric is a kind of thick fabricthe warpFour warp broken satin or long shaft woven with fine weft yarnSatin fabric。It is characterized by high strength in the main warp direction.
（4）Tridimensional fabricCompared with plane fabric, three-dimensional fabric has developed its structural characteristics from one-dimensional and two-dimensional to three-dimensionalReinforcementThe composite material ofentiretyAnd profiling, greatly improving the interlaminar shear strength and resistance of the compositeDamage tolerance。It is developed with the special needs of aerospace, aviation, weapons, ships and other departments. At present, its application has been expanded to automobile, sports equipment, medical equipment and other departments.There are mainly five categories: woven three-dimensional fabric, knitted three-dimensional fabric, orthogonal and non orthogonal nonwoven three-dimensional fabric3D woven fabricAnd other forms of three-dimensional fabric.The shapes of three-dimensional fabrics are blocky, columnar, tubular and hollowFrustumAnd variable thickness profiled section, etc.
(5) Shaped fabric: The shape of profiled fabric is very similar to the shape of the product it is intended to strengthen, and it must be woven on a special loom.Symmetrical shaped fabrics include round covers, cones, hats, dumbbell shaped fabrics, etc. They can also be made into boxesHullIsosymmetric shape.
(6) Trough core fabric: Trough core fabric is composed of two parallel layers of fabric, which are connected by longitudinal vertical stripscross sectionThe shape can betriangleOr rectangle.
(7) Glass fibreStitch knitIt is also called knitted felt or woven felt, which is different from ordinary fabrics and felt in the ordinary sense.The most typical stitch knitted fabric is a layer of warp and a layer ofweftOverlapped together, warp and weft are knitted together to form a fabric through sewing.The advantages of seam woven fabric are as follows: ① It can increase the limit of FRP laminated productsTensile strength, resistance under tensionDelaminationStrength and bending strength; ②Reduce the weight of FRP products; ③The surface is flat to make the FRP surface smooth; ④Simplify hand lay up operation and improve labor productivity.This reinforcing material can replace continuous strand mat in pultruded FRP and RTM, and can also be used inCentrifugationFiberglass reinforced plastic pipe replaces checkered cloth in production.
Since the 1970s, there have been reinforcement materials that combine chopped strand mat, continuous strand mat, roving fabric and roving in a certain order, including:
(1) Chopped strand mat+roving fabric
(2) Chopped strand mat+roving cloth +Chopped strand mat
(3) Chopped strand mat+continuous strand mat+chopped strand mat
(4) Chopped felt+random roving
(5) Chopped strand mat or cloth+one-waycarbon fibre
(6) Chopped strand+surface felt
(7) Glass cloth+one-way roving or glass rod+glass cloth
Glass fiber wet blanket
Glass fiber non-woven fabricSeries of productsIt originated in Europe and was later introduced into the United States, Japan, China and other countries.China has successively established several large-scale production lines, and the main technologies are from German technologies such asChangzhouZTE TianmaShaanxiWalter.
Main classification of domestic glass fiber wet blanket:
(4) Veneer felt is used for wall andceilingIt can prevent paint cracking and orange peel, and is mostly used to decorate large conference rooms and high-end hotels
It is mainly used in the FRP industry (about 70%).Glass fiber cloth is also used in the construction industry, whose main function is to increase strength.Also used as building exterior wallInsulation layer，Interior wallDecoration, interior wall moisture-proof and fireproof, etc
1. Increase the rigidity and hardness. The increase of glass fiber can improve the strength and rigidity of plastics, but the toughness of the same plastics will decrease.example:Bending modulus；
9. Glass fiber treatment: the length of glass fiber directly affects the brittleness of materials.If the glass fiber is not properly treated, the staple fiber will be reducedimpact strength The impact strength will be improved after long fiber treatment.To makeMaterial brittlenessIf it doesn't drop a lot, choose a glass fiber with a certain length.
Conclusion: To obtain good impact strength, glass fibersurface treatmentAnd the length of glass fiber is very important.
Fiber content: the fiber content of the product is also a key issue.Our country generally adopts integer content of 10%, 15%, 20%, 25% and 30%, while foreign countries determine the content of glass fiber according to the use of products.
Skid resistance on ice surface
Skid resistance on ice surface
In April 2015,CanadaScientists have developed a cheap and effective method to embed glass fiber into elasticityrubberMedium, thisnew materials It can be used to make anti-skid shoes in winter.This material is made ofThermoplastic polyurethaneIt is made of rubber and plastic, and thousands of glass fibers are buried in it and stretched out of the rubber like tiny nails, making the rubber feel like fine sandpaper.[2]
Industry status
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international market
Glass fiber is a very good metalMaterial substitutionMaterial, along withmarket economyWith the rapid development of, glass fiber has become an indispensable raw material for construction, transportation, electronics, electricity, chemical industry, metallurgy, environmental protection, national defense and other industries.Because of its wide application in many fields, glass fiber has been paid more and more attention.Global FiberglassProduction and consumptionThe major powers are mainly the United States, Europe, Japan, etcdeveloped country, its average fiber glassConsumptionHigher.Europe is still the largest region of glass fiber consumption, accounting for 35% of the global total consumption.
Since 2008, glass fiber enterprises around the world have become more cautious about production expansion plansthroughputSlow growth.In 2010, the global continuous glass fiber production capacity was 4.715 million tons, expected to be 5.3 million tons.
domestic market
After years of development, China's glass fiber enterprises,product qualityIt has reached the upstream level, and the proportion of deeply processed products has increased year by year.Leading enterprise in China's glass fiber industryGross profit marginBetween 25-35%, significantly higher than the 10% gross profit margin of foreign giants.The world glass fiber industry has beenoligarchMonopoly pattern: China, as a new force, is expected to occupy more than 60% of the world's share and become a new oligopoly in the international glass fiber market after an average annual growth rate of more than 20% in recent years.
The rapid development of China's glass fiber industry in recent years is driven by the domestic and foreign markets.The expansion of the international market hasAggregate demandGrowth factors also come fromInternational enterprisesProphase causeprofit marginThe development space left for domestic enterprises in the international market after a relatively low exit from the industry;The growth of the domestic market comes from the rapid development of downstream consumer industries.After more than 50 years of development, glass fiber in China has taken on a considerable scale.
Compared with the international market, China has less varieties and specifications of glass fiber products,Scope of applicationNarrow.However, these conditions also indicate that there are still a large number of glass fiber industries in ChinaMarket spaceNot excavated, especially in someapplication area , manySegmentsNot even developed at all.In the last few years of the 20th centurydevelopment strategy Under the guidance of, gratifying changes have taken place in both the overall output of the glass fiber industry and the output changes of various advanced glass fiber products.China's glass fiber industry started from the early days of reform and opening up, and has become the second largest glass fiber product in the world in 20 yearsCountry of production, yieldGrowth rateIt is obviously faster than the growth rate of world glass fiber output.In 1985, China's glass fiber output was only 71000 tons, barely accounting for 1/20 of the world's glass fiber output. However, since the 1990s, the glass fiber industry has made rapid progress. In 2001-2003, when the world's glass fiber industry output stagnated and fell into a bottleneck, China's glass fiber output still maintained a rapid growth momentum, with 473000 tons in 2003Annual outputIt has almost reached 1/5 of the world's glass fiber output, and has reached and exceeded the national level ahead of scheduleTenth Five Year PlanThe specified goal of annual output of glass fiber is 380000~400000 tons.China's glass fiber industry is an export-oriented structure, with two-way growth in import and export. Especially with the vigorous development of glass fiber industry, import and export have maintained a rapid growth. In 2003, the export volume reached glass fibertotal output59.1%.The high import and export ratio shows that China's glass fiber industry has fully integrated with the international glass fiber market, and the improvement of product output and quality has greatly enhanced the competitiveness of China's glass fiber industry in the international market.On the other hand, China's sustained and steady economic development has also increased the domestic demand for advanced glass fiber products from abroad.This healthy export-oriented structure has led to a virtuous circle.China's glass fiber industry has always beenDeficitHowever, the gap between exports and imports has been narrowing, and it was realized for the first time in the first half of 2004balance of trade surplusUS $59175500, completely reversing the situation of import exceeding export in the whole industry
From January to November 2007, China's glass fiber and product manufacturing industry achieved a total ofTotal industrial output value37624527 thousand yuan, an increase of 38.07% over the same period of the previous year;Cumulative implementationProduct sales revenue3656583900 yuan, an increase of 38.22% over the same period of the previous year;The accumulated total profit was 3541052000 yuan, an increase of 51.08% over the same period of the previous year.
Received in 2008international financial crisis Impact,China FiberglassThe export situation is very seriouseconomic situationIn the period of recession and current supply exceeding demand, it is necessary to accelerate the development and application of downstream products in the glass fiber industry to comply with the current national policy.Pay attention to the domestic demand for glass fiber yarn,expand domestic demand, maintain the domestic economysustained development。
In December 2011, China produced 310000 tons of glass fiber yarn, up 15.28% year on year.From January to December 2011, the output of glass fiber in China reached 3.72 million tons, up 17.95% year on year.
From the output of provinces and cities, from January to December 2011, the output of glass fiber in Shandong reached 1.25 million tons, with a year-on-year growth of 18.79%, accounting for 33.67% of the total national output.Zhejiang, Chongqing and Sichuan followed closely, accounting for 19.95%, 11.49% and 9.66% of the total output respectively.
Because of this, the domestic outstanding glass fiber industry manufacturers are paying more and more attention to the research on the industry market, especially on theEnterprise developmentEnvironment andcustomer demandWith the in-depth study of the trend change, a large number of domestic outstanding glass fiber enterprises have risen rapidly and become the leaders in the glass fiber industry.
In the long run,Middle East、Asia-PacificWith the strengthening and transformation of infrastructure, the demand for glass fiber has increased greatlyModified plastics、Sports equipment、AerospaceThe demand for glass fiber is growing, and the prospect of glass fiber industry is still optimistic.In addition, the application field of glass fiber has expanded toWind powerMarket, which may be a highlight of the future development of glass fiber.energy crisisIt urges countries to seek new energy. Wind power has become a focus of attention today. China has also begun to increase its investment in wind power.
application area
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Fiberglass products are widely used in various fields of the national economy, of which electronics, transportation and construction are the three most importantapplication area , also represents the world's glass fiber industry in the next few yearsDevelopment trend。
Related findings
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On May 7, 2023, the reporter learned from the Institute of Physics of the Chinese Academy of Sciences that through systematic material science research on Chang'e-5 lunar soil samples, Chinese researchers have found many types of lunar glass materials with different origins.More importantly, they also found natural glass fiber in the lunar soil of Chang'e-5 for the first time.Relevant research results were published online in the National Science Review.[4]
