Use level Negotiable Manufacturers (Origin) Philip the Grade PP PP board, PP English name Polypropylene, a polymer, propylene monomer is CH2 = CH-CH3, obtained by addition polymerization of polypropylene, the formula can be expressed as ( C3H6) n, a simple structure can be expressed as [-CH2-CH (CH3) -] PP Bar is a semi-crystalline materials. To be more rigid than PE and has a higher melting point. Since the type of PP homopolymer temperature is higher than the above 0 ℃ very brittle, so many commercial PP material is added 1-4% ethylene random copolymer or a higher ratio of clamp-stage ethylene content copolymer. Copolymer PP material has a lower heat distortion temperature (100 ℃), low transparency, low gloss, low rigidity, but have a stronger impact strength. PP ethylene content increases strength increases. PP Vicat softening temperature of 150 ℃. Due to the high degree of crystallinity, rigidity and resistance to scratches the surface of this material is very good. PP environmental stress cracking problem does not exist. Features low density, heat-resistant, no deformation, high stiffness, high surface strength, chemical stability, good electrical properties, non-toxic, uniform color, smooth surface, easy installation and maintenance, long life, easy processing, welding firm and so on. PP board applications drinking water pipes, equipment seals, spray carrier, corrosion-resistant tanks, barrels, acid industry, waste water, emissions equipment, scrubbers, clean rooms, semiconductor manufacturing and related industries of mechanical, food machinery and chop plate, plating processes. The current status of the domestic PP rods are mainly two kinds of domestic and imported, domestic PP stick to occupy most of the market. Domestic PP stick cheap, but the prevalence of deformation, oval, bubbles and other issues. Import PP excellent stick performance, color uniformity, good processing performance, but the price is a little expensive.