The insulation board is a board for building insulation, which is easy to understand.Insulation boardYesPolystyrene resinAdd others to the raw materialsRaw and auxiliary materialsThe rigid foam plastic plate, which is made by heating, mixing and injecting the catalyst with the polymer, and then extruding and molding, has moisture-proof and waterproof properties and can reduce theEnclosureThickness, thus increasing the interiorUsable area。
The insulation board is a board for building insulation, which is easy to understand.The insulation board is designed toPolystyrene resinAdd others to the raw materialsRaw and auxiliary materialsAndpolymer，Plastic plateWith moisture-proof and water-proof performance, it can reduceEnclosureThickness, thus increasing the indoor use area.
XPS insulation board, which is based onPolystyrene resinAdd other raw and auxiliary materials and polymers to the raw materials, mix them by heating and inject catalyst at the same time, and thenExtrusion moldingMade by extrusionRigid foam plasticPlateIts scientific name isheat insulationExtrusionPolystyrene foam(XPS for short), XPS has perfect closed holeHoneycomb structureThis structure makes the XPS board extremely lowWater absorption(hardly absorbs water)Low feverDerivative coefficient, highCompressibilityAging resistance (almost no aging decomposition phenomenon in normal use).
1. HardPolyurethane boardLow thermal conductivity and good thermal performance.When the volume weight of rigid polyurethane is 35~40kg/m3, the thermal conductivity is only 0.018g~0.023w/(m.k), which is about half of EPSThermal insulation materialThe one with the lowest thermal conductivity.
2. Rigid polyurethane board has moisture-proof and waterproof properties.Rigid polyurethaneObturation ratioOver 90%, belonging toHydrophobic material, not becauseHygroscopicIncrease the thermal conductivity, and the wall will not leak.
3. Rigid polyurethane is fireproof, flame retardant and high temperature resistant.Polyurethane is being addedFlame retardantAfter that, it is a kind of refractorySelf extinctionMaterial, itssoftening pointUp to 250centigradeAbove, decomposition can only occur at higher temperatures: in addition, polyurethane will form ash on its foam surface when burning, which helps to isolate the foam below.It can effectively prevent fire spreading.Moreover, polyurethane does not produce under high temperatureHarmful gas。
4. BecausePolyurethane sheetIt has excellent thermal insulation performance, which can reduce the thickness of the building's outer enclosure structure and increase the indoor temperature under the same thermal insulation requirementsUsable area。
5. It has strong deformation resistance, is not easy to crack, and the finish is stable and safe.
Insulation board
6、polyurethaneMaterial ScienceporosityStructural stabilityIt is basically a closed cell structure, which not only has excellent thermal insulation performance, but also is resistant to freezing and thawingSound absorptionGood.Rigid vesiclePolyurethane insulation structureaverage life spanUnder the condition of normal use and maintenance, it can reach more than 30 years.Under normal service conditions during the service life of the structureElectrochemical corrosion, and due to insects, fungi oralgaeGrowing or due torodentDestruction, etcexternal causeWill not be damaged.
7. High comprehensive cost performance ratio.Although hardPolyurethane foamThe unit price of materials is higher than that of other traditional onesThermal insulation materialThe unit price of is high, but the increased cost will be offset by the substantial reduction of heating and cooling costs.
XPS board has dense surface layer and closed pore structure inner layer.histhermal conductivityIt is much lower than that of the same thicknessEPSTherefore, it has better performance than EPSThermal insulation performance。
For the same building exterior wall, its thickness can be less than that of other typesThermal insulation material；Because of the closed pore structure of the inner layer.So it has goodMoisture resistanceIn a humid environment, it can still maintain good thermal insulation performance;It is applicable to buildings with special requirements for thermal insulation such as cold storage, and can also be used for exterior wall finishing materials such asface brickorStoneBuilding;
Light texture, easy to use: Complete closed cell foaming of XPS boardChemical structurerather thanHoneycombPhysical structureThe utility model has the characteristics of light weight and high strength, and is convenient for cutting, transportation, damage resistance and installation.Due to extrusionpolystyreneThe fixation method with the base wall shall be mechanicalFixings。Construction can be carried out as usual in winter;
The XPS board itself has high strength, resulting inboardBrittle, not easy to bend, when there is stress on the plateStress concentration, easy to damage and crack the plate;Air permeabilityPoor, almost airtight. If the temperature difference between the two sides of the board is large and the humidity is high, it is easy to dew;As the surface of the plate is smooth, the interface treatment and roughening are required during construction.Rough panel is not listed here;XPS board andplastering mortar The bonding is not firm and easy to fall off;The external tiles fall off faster and more seriously.
Polyurethane insulation board
advantage:
High efficiency insulation due topolyurethaneUsedfoaming agentThe thermal conductivity of is much lower than that of air (good thermal insulation), soPolyurethane rigid foamOfInsulation It is superior to those materials only containing air, such as:Mineral wool、glass fibreAnd polystyrene.
Moreover, its unique closeness and high gas resistanceDiffusivityMake this a superior long-terminsulationPerformance, itsThermal insulationPerformance can last for 20-50 years or more;
Excellent corrosion resistancePolyurethane rigid foamIts closed hole structure and surface material make it have superior air resistance and water vapor resistance, and it can be made when moldingMosaic connectionStructure, easy for post assembly.It doesn't need extraInsulation layerMoisture-proof, saving a lot of trouble in laying insulation layer.These properties are all otherInsulating materialNot available at the same time;
Wide, light and thin wall, because polyurethane rigid foam acts asStructural materials, makingOverall structurehaveLight weight, large span and high loadAdvantages of.
WeatherabilityGood, easy to install polyurethane sandwich panels can be directly used forBuilding installation, no additional process is required, and the construction is fast.And the production is carried out according to the plan without taking into account the change of weather.
Disadvantages:
The formula and proportion of insulation boards are disordered and unstable, which leads to the boardsPhysical stabilityPoor,Thermal insulation effectBad;The workability of spraying has not been solved, and it is difficult to ensure the project quality.
Performance characteristics
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Performance characteristics of insulation board: highFire resistanceHigh thermal insulation, relatively good strength, not easy to break, light weight, non-toxic and harmless, long service lifeWater resistanceGood, good interface, energy saving and safety, etc.
Performance characteristics
Shape: rectangle
Low temperature bending ≤: 0.8Mpa
Scope of application: building thermal insulation materials
Elongation at break: 9 × 10 to the 6th power
Form: bubble
Specification: 640X520
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Bending strength: average bending strength 0.8Mpa
Core material: glass
Operating temperature: - 196 ℃ to 450 ℃
Compressive strength: average compressive strength 0.8Mpa
Grade: YH-160B1
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Product type: insulation board
Product category: inorganic thermal insulation material
construction technology
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Install insulation board
（1）Standard plateThe size is 300 * 300,diagonalThe error is less than 3mm. If you need to cut, you can use a small cutting saw to cut. The size of the insulation boardAllowable deviation± 2.
（2）Mesh fabricUnpacking: door and window openingsDeformation jointGrid cloth shall be pasted on both sides, with a total width of about 200, and the width of the flipping part is 80. The specific method is as follows: the cutting length of the grid cloth is 180+Plate thickness。First, the special area with a length of 80 and a width of 2 shall be plastered on the turning partbinder, and then press in 80 long mesh cloth, and throw out the rest for standby.
(4) Strip bonding method: apply the special adhesive with a tooth trowelhorizontal directionEvenly plastered on the foamed cement board, the strip width is 10 and the thickness is 10,Midrange50。
(5) Strip point method: apply special adhesive around and in the middle of each board with a trowel, and then apply the adhesive with a diameter of 50 and a thickness of 10 in the separation area of the foam cement boardGrey cake。
(6) Paste the insulation board with special adhesive on the wall quickly to prevent the surfaceCrustsAnd lose the bonding effect.
（7）Foamed cement insulation board After pasting the wall, apply 2mGuiding ruleThe flattening operation shall be ensuredplanenessIt shall be firmly pasted, and the plates shall be tightly squeezed without joints. The gaps formed due to uneven cutting shall be filled with adhesive and smoothed.The special adhesive on the extrusion surface shall be removed after each plate is glued.
（8）Foam cement boardThe pasting shall be carried out horizontally from bottom to top in sections, and each row of plates shallStagger seam1/2 plate length, local minimum staggered joint shall not be less than 100.
Mounting Fixings
(1) The fixing parts shall be installed 8 hours after the insulation board is pasted, and then24 hoursCompleted within.Used according to the position required by the designPercussion drillThe hole diameter is 10, the depth of drilling into the base wall is about 60, and the depth of anchoring the fastener into the base wall is about 50, so as to ensure firmness and reliability.
(2) The number of fasteners shall be one for each plate.
（3）Self tapping screwThe engineering plastic expansion nail cap shall be compacted and combined withFoam cement boardThe surface shall be neat or slightly screwed in to ensure that the tail of the expansion nail is screwed back and fully anchored with the base wall.
polish
(1) Application at uneven joints of insulation boardCoarse sandpaperGrind gentlyCircular motionDo not polish along the direction parallel to the plate seam.
(2) Clean the floating ash with a brush in time after polishing.
(1) According to the design requirements, the ink line shall be used to pop up the position where the line angle needs to be made, and the horizontal and vertical directions shall be corrected.
（2）Concave lineCorner cut the plate intoNotchThe thinnest part of the notch shall not be less than 15.
(3) The convex line angle shall be cut according to the design size and brushed on both sides of the line angle and the corresponding insulation boardInterfacial agentOne coat, and then fully coatedAdhesiveTo make it stick firmly.
（1）polymer mortar The configuration of is the same as that of special adhesive.
(2) Apply the prepared polymer mortar evenly on the board, with a thickness of 2mm.
Press in grid cloth
(1) The grid cloth shall befaceThe length and width of shall be cut, and the lap width shall be reserved.The mesh cloth shall be cut along the longitude and latitude.
(2) Grid cloth turning around openings such as doors and windows, four cornersShould beA layer of grid cloth shall be added for reinforcement. The whole grid cloth shall be wrapped around the opening and above the additional grid cloth.
(3) At the opening and mesh cloth turning positionPlastic extruded boardPolymer mortar shall be applied to the front and side (only polymer mortar is allowed to be applied to the end of the extrusion plate here).Turn the pre thrown grid cloth over along the plate thickness and press it into the polymer mortar.
(4) Straighten and flatten the whole grid cloth along the horizontal direction, pay attention to the inward curved side of the grid cloth, and use a trowel to smooth the grid cloth from the middle to the upper and lower sides to make it close to each other.The overlapping width of grid cloth in horizontal direction shall not be less than 100, and in vertical directionLap lengthNot less than 80, for lap jointpolymer mortar The void of the bottom mortar shall be supplemented, and the grid cloth shall not be wrinkledhollowing , Trimming.
(5) At the concave and convex line corners, the narrow grid cloth shall be buried in the polymer mortar of the bottom layer, and the whole grid cloth shall be laid on the narrow grid cloth with the overlapping width of 80.
Overlap each other
(6) At the internal and external corners of the wall body, the grid cloth on both sides will wrap around the corners in two directionsLapThe overlapping width at each side shall not be less than 200.
