technical knowledge

Introduction to Grinding Disperser The grinding disperser is a * * * product of Shanghai Iken Machinery Equipment Co., Ltd. It has been listed as a high-tech achievement transformation project in Shanghai, and is widely used in new materials, medicine, research and development, as well as food and chemical industry. The grinding disperser relies on the clearance between the stator and rotor (the clearance is adjustable) to make the material subject to the physical action of multi gravity such as strong mechanical force, hydraulic shear, high-frequency vibration, etc. through the grinding area, and be sheared, peeled, dispersed, and crushed efficiently and quickly. Then it goes through the second stage high-speed shear disperser to shear, refine, disperse, and homogenize again, so as to achieve the ultra-fine grinding and dispersion homogenization of the material

2018/07/26 17:34:31

Graphene is a two-dimensional material with only one carbon atom thickness, which is a hexagonal honeycomb lattice plane film composed of carbon atoms with sp2 hybrid orbitals. At present, graphene is a thin but hard zui nano material in the world, almost completely transparent, absorbing only 2.3% of the light; The thermal conductivity is up to 5300W/m, which is higher than carbon nanotubes and diamonds. Its electron mobility at room temperature is more than 15000cm2/Vs, which is also higher than carbon nanotubes or silicon crystals. Its resistivity is only about 10-8 Ω/m, which is lower than copper or silver. It is a material with low resistivity zui in the world

2018/07/09 10:33:29

Ultrafine powder particles have large specific surface area and high specific surface energy, and are in a very unstable state of thermodynamics. In the process of preparation and post-treatment, it is very easy for particles to coagulate and agglomerate, forming secondary particles, which makes the particle size larger. Zui eventually loses the unique functions of ultra-fine powder in use. In a sense, the dispersion technology of ultrafine powder is the key technology of zui in ultrafine powder technology. Therefore, testing the dispersion performance of ultra-fine powder has become an important item to evaluate the technical quality level of ultra-fine powder. Ultrafine powder usually refers to small solid particles with a size of about 1 nm~1 μ m

2018/07/09 10:31:09

In the structure of lithium-ion battery, the main function of the separator is to separate the positive and negative electrodes of the battery, so as to prevent the short circuit caused by the contact between the two poles. It is one of the key inner components. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety performance of the battery. The separator with good performance plays an important role in improving the comprehensive performance of the lithium-ion battery. What should be paid attention to in the preparation of high-quality lithium battery separators with high solid content and how to select suitable equipment for zui? High solid content lithium battery separator grinder, vertical high shear lithium battery separator, liquidity

2018/07/05 08:51:40

In general, the longer the grinding time is, the better the grinding effect will be, but it is difficult to further refine the graphite particles to a certain extent. Because as the particle size decreases, the specific surface area rapidly increases, the activation points on the particle surface increase, the surface free energy increases, and the system is in a very unstable state. The fine particles agglomerate with each other to form "false particles" to reduce the specific surface area; If the grinding time is prolonged, the energy input into the system will be used to crush the "false particles", which will soon reunite after being crushed

2018/06/04 14:02:55

Graphene preparation techniques and equipment use graphene as a nano material. Agglomeration is a troublesome problem. How can we better disperse graphene in the medium, refine the particle size of graphene, and preserve large specific surface area? For a small amount of graphene composite slurry with low solid content, ultrasonic method can be used to prepare stripping, but it is not suitable for those with large amount and higher solid content. At the same time, there are many sand mills to prepare graphene. We know that the principle of the sand mill is to refine the material particle size by the principle of zirconium bead impact crushing. Graphene has a large layer structure, Zirconium beads in the sand mill are easy to make stones

2018/05/28 08:17:44

How to select graphene dispersion equipment? What is good about the separation and dispersion effect of graphene equipment zui? Which kind of equipment is widely used in graphene materials? IKN high-speed grinding disperser is a stable equipment for dispersing graphene zui in large quantities on the market at present. It has been applied by many graphene manufacturers in Hunan, Ningbo, Shanghai, Shandong, Shenzhen, Anhui, etc., and has received good feedback and bought back many sets. For details, please call 18201891183. What are the advantages and differences of Iken Forest compared with other graphene preparation equipment? The graphite stripping of Shanghai Yiken Machinery Equipment Co., Ltd

2018/05/27 10:33:48

How to adjust the clearance size of the colloid mill The colloid mill is driven by the motor through the belt drive to rotate the rotating teeth (or called the rotor) and the matching fixed teeth (or called the stator) at a relatively high speed. The processed material is pressurized by its own weight or external pressure (can be generated by the pump) to generate downward spiral impact force, which passes through the clearance between the colloid mill's fixed teeth and rotating teeth (the clearance is adjustable) When subjected to strong shear force, friction force, high-frequency vibration and other physical effects, materials can be effectively emulsified, dispersed and crushed to achieve the effect of ultra-fine grinding and emulsification of materials. Why should we adjust the intermittent size of the colloid mill? The factors that affect the grinding results are

2018/05/06 10:27:26

First of all, what is the stability of emulsion? Emulsion stability refers to the characteristics that the emulsion maintains an obvious stable state and does not produce two-phase stratification instability. Emulsion is a liquid-liquid interface phenomenon. Two immiscible liquids, such as oil and water, are divided into two layers in the container. The oil with low density is in the upper layer, and the water with high density is in the lower layer. If proper surfactant is added and strong stirring is performed, the oil will be dispersed in water to form emulsion, which is called emulsification. Generally, the factors affecting the emulsification stability include emulsification equipment, emulsification temperature, emulsification time and mixing speed. Secondly, what are the characteristics of good emulsion

2018/04/22 09:44:17

We know that ordinary mechanical stirring and grinding can only make the carbon nanotube aggregate mix with the matrix powder macroscopically, and can do nothing to disperse the carbon nanotube aggregate itself; Ball milling can crush off carbon nanotubes and disperse carbon nanotube aggregates, but also make carbon nanotubes more tightly bonded together. At the same time, ball milling itself relies on the steel balls in the equipment to impact and crush materials, which is easy to damage the unique structure of carbon nanotubes, thus affecting their performance in a large range; Ultrasonic treatment also has this feature, and ultrasonic treatment capacity is small and efficiency is slow; The method of adding surfactant and acid alkali washing can make the surface of aggregates

2018/04/19 08:49:55