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The forming process of PP plate

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The forming process of PP plate

Date:2016-07-27 Author: Click:

With the development of society and the continuous improvement of economy, the market of PP sheet is expanding. And PP plate is a kind of plastic sheet. Now the development prospect of plastic plate industry is very good, the share of the economy is becoming more and more large, PP plate and other advantages are significant, there is a lot of space for development, and can also be recycled, in line with a healthy and green life style. Now the plastic plate industry is adjusting and optimizing the industrial structure, constantly developing innovation, improving the production process, keeping pace with the times, so as to be able to occupy a favorable position in the fierce market competition. PP plate is a kind of engineering plastic plate with excellent performance. It has strong abrasion resistance, strong impact resistance, small friction coefficient, strong lubricating function and corrosion resistance, and it is waterproof and moisture-proof and is not easy to deform. PP board is widely used in papermaking, food, textile and other fields.

PP plate is a semi crystalline material with a harder and higher melting point than PE plate. The homopolymer type of PP plate is very brittle when the temperature is above 0 degrees C. In order to solve this problem, many manufacturers in the production process, in the PP material is a random copolymer of ethylene with 1%~4%. PP material has lower thermal distortion temperature, low diaphaneity, low gloss and low rigidity, but has stronger impact strength. The strength of PP increases with the increase of ethylene content. Because of the high crystallinity, the material has good surface stiffness and scratch resistance. There is no environmental stress cracking in PP plate. PP sheet can be modified by adding glass fiber, metal additive or thermoplastic rubber to PP sheet. Under the influence of crystallization, the shrinkage of PP sheet is quite high, generally 1.8~2.5%, and the direction uniformity of shrinkage is much better than that of PE. PP materials have excellent moisture absorption, acid and alkali resistance, and anti solubility. However, PP board has no resistance to aromatic hydrocarbon solvent and chlorinated hydrocarbon solvent.


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