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    Location:Leader plastic plate _PVC board _PVC board _PVC plastic _PP plastic board _PP board - Baoding Hongyuan Plastic Industry Co., Chinese plastics industry >> News >> Industry News >> 浏览文章


     

    pp board is what kind of plate

     

    Date:2014年03月31日 Source:本站原创 Browse:

     

    PP board is a semi-crystalline materials, has to be more rigid than PE board, a higher melting point. PP Homopolymer the plate temperature is higher than the above 0 ℃ very brittle, in order to solve this problem, many manufacturers in the production process, the PP material is 1% to 4% of a random copolymer of ethylene.


    PP material has a lower heat distortion temperature, low transparency, low gloss, low rigidity, but have a stronger impact strength. PP intensity with increasing ethylene content increases. Due to the high degree of crystallinity, surface stiffness and scratch resistance of this material is very good. PP board does not exist to environmental stress cracking problems. PP board by adding glass fiber, metal additives or thermoplastic rubber modified PP board.


    Under the influence of crystallization, PP sheet contraction rate is very high, typically 1.8 to 2.5%, and the uniformity of shrinkage direction is much better than the PE and other materials. PP materials have excellent resistance to moisture absorption, anti-acid corrosion and solvent resistance. But PP sheet for aromatic solvents, chlorinated hydrocarbon solvents, such as no resistance.
     

     

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