Crospovidone Category25249-54-1

Crospovidone category is a cross-linked polyvinyl alcohol ester compound, cross-linked povidone. Or it is white and nearly white, with hygroscopic and easy-flowing powder, smelly or slightly smelly, will not be anhydrous, alkali, acid and common organic solvents, has strong swelling performance and complex ability with many kinds of substances.

Due to the high molecular weight and cross-linked structure of PVPP, water can be quickly introduced without contact with water, and its network structure swells to produce disintegration. PVPP is a slow disintegrant widely used in medicine.

Also, because the molecules have trapping bonds and the hydrogen bombs that adsorb multiple molecules form hydrogen bonds, they can prevent multiple adsorption and improve the non-biological stability of the wine. Therefore, it can be used as a stabilizer for beer, fruit wine, and beverage wine, and extend its lifespan up to 300 days, improving its performance, learning and description.

Cross-linked polyethylene is a kind of thermosetting plastic with a network structure. It has outstanding abrasion resistance, solvent resistance, dimensional stability, stress crack resistance, anti-aging and weather resistance, non-toxic, odorless, and non-absorbent. ; Good low temperature flexibility, excellent heat resistance, softening point up to 200 ℃, long-term use at 140 ℃; impact strength, tensile strength, creep resistance and rigidity are better than HDPE, the modulus of elasticity is higher than HDPE 5 times; has excellent electrical insulation, low temperature resistance, chemical stability and radiation resistance. The film has moderate transparency and sufficient water vapor permeability. After the cross-linked polyethylene is heated, inflated (stretched), cooled and shaped, when it is reheated to above the crystallization temperature, it can naturally return to its original shape and size (that is, it has shape memory). The cross-linked polyethylene commonly used in industry includes radiation cross-linked polyethylene, peroxide cross-linked polyethylene and silane cross-linked polyethylene. Radiation cross-linked polyethylene film properties.

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