The copolymer-type PP material has lower thermal distortion temperature (100 ° C), low transparency, low gloss, low rigidity, but has stronger impact strength. The strength of PP increases with increasing ethylene content. The Vicat softening temperature of PP is 150°C. Due to the high degree of crystallinity, this material has good surface stiffness and scratch resistance properties. PP does not have environmental stress cracking problems. Typically, PP is modified by adding glass fibers, metal additives or thermoplastic rubber. The flow rate MFR of PP ranges from 1 to 40. PP materials with low MFR have better impact resistance but lower ductility. For the same MFR material, the strength of the copolymer type is higher than that of the homopolymer type. Due to crystallization, the shrinkage rate of PP is quite high, generally 1.8~2.5%. And the directional uniformity of shrinkage is much better than that of PE-HD and other materials. Adding 30% glass additive can reduce the shrinkage to 0.7%.
The mainstream plastic corrugated pipes on the market include PP polypropylene corrugated pipes, PE polyethylene corrugated pipes and PA6 nylon corrugated pipes.
PP corrugated pipe is a corrugated pipe mainly made of polypropylene material. PP corrugated pipe is made of high-quality polypropylene material, with excellent physical and chemical electrical properties, the main function of machinery manufacturing, electrical insulation protection, lighting equipment, automobile manufacturing, aviation equipment, subway, train, automation control and other industries.
1. Product material: polypropylene PP
2. Working temperature: -40℃~110℃, short time 130℃
3. Flame retardant grade: HB (UL94), according to FMVSS 302 requirements, burning speed <100mm/min
4. Structure: both inside and outside are wavy
5. Features: good flexibility, anti-distortion, good bending performance, can withstand heavier loads. Resistant to acid, lubricating oil, coolant, etc. The surface is glossy and resistant to friction
6. Environmental standards: ROHS, halogen-free, phosphorus-free
7. Color: dark gray, black, orange
|Product Name||Corflute coroplast planting tree protection tree guard|
|Color||Transparent ,White,Red,Yellow,Blue,Green, Black,Gray|