The application of BMA wholesale price inquiry:
Condensate water purification industrial water treatment (softened water and high-purity water production) nuclear power plant water treatment;
2. Ultra-pure water is used for preparing sweeteners, removing impurities, decolorization, and chromatographic separation for other special separations and chemical reactions.
Because the resin binder in the binder is in a molten state under the effect of temperature and has good fluidity, it is easy to fill all parts of the mold cavity. Therefore, the hot pressing pressure is not high, generally ranging from 30 to 60 MPa. It should be pointed out that since part of the forming pressure is consumed by the friction resistance of the mold wall, and part is consumed by the water vapor and volatile substances that overflow from the forming cavity, the constant pressure forming method is difficult to ensure the appropriate pressure. Therefore, the mold cannot achieve a fixed density, so in production, the fixed mold forming method is often used. That is, the weight of the forming material is fixed, the thickness of the mold tool is controlled by the size of the mold itself, and the pressure is applied so that the mold is pressed in place.
Phenolic resin is generally heated at 185 ± 5℃; polyimide resin is heated at 235 ± 5℃. If the temperature is too high, the reaction speed will be too fast, which may lead to forming problems, poor bonding between the matrix and the binder, and sometimes even cause cracks in the mold. If the temperature is too low, the pressing time will be prolonged and the production efficiency will be low.
bma wholesale price inquiry https://www.epchems.com/butyl-methacrylate
Comments (0)