PP Polypropylene
Homopolymer, copolymer, and powder-grade PP from 7 major suppliers — Sinopec, ZPC, Shenhua, Yan'an Energy, Zhong'an, Zhonghan, plus PP powder from Sanjiang/Hongji/Weixing. For appliances, automotive, packaging, and fiber applications.
PP Polypropylene Overview
Polypropylene (PP) is one of the most widely used thermoplastics, valued for its low density, excellent chemical resistance, and versatility. PP grades span homopolymer (rigid, high strength), copolymer (impact resistant), and random copolymer (transparent). PP powder is used as feedstock for compounding and modification — it cannot be directly injection molded.
Physical Characteristics: Milky white translucent pellets with a waxy, slippery feel. Density is lower than water (floats on water surface). PP powder is a white powder used for chemical modification compounding—not suitable for direct injection molding.
Suppliers & Grades
| Supplier | Grade | Properties / Applications |
|---|---|---|
| Sinopec 中石化 | T03 / 500N / M17 / 8003 | Microwave containers, water cups, rice cooker housings, auto parts |
| ZPC 浙石化 | K9928 / 8003 / 550J / 500 | Copolymer PP, car bumpers, plastic pallets |
| Shenhua Ningmei 神华宁煤 | 2500HY / 1102K / 1100N | Raffia (woven bags), injection molding, fiber |
| Yan'an Energy 延能化 | S1003 / 550J / K8003 / K | Food packaging, automotive interior |
| Zhong'an Petrochemical 中安石化 | M30RH | High-flow copolymer, large appliance housings |
| Zhonghan Petrochemical 中韩石化 | Z30S | Fiber/injection grade, high-strength woven bags, rope |
| Sanjiang / Hongji / Weixing 三江/鸿基/卫星 | PP Powder 粉料 | Chemical modification feedstock (compounding) — white powder, not for direct injection |
Common Applications
Home Appliances
Microwave containers, rice cooker housings, water cups, washing machine parts.
Automotive
Bumpers, interior trim, dashboard components, battery cases.
Packaging & Fiber
Woven bags, food packaging film, raffia, non-woven fabrics.
Frequently Asked Questions
What is the difference between PP homopolymer and copolymer?
PP homopolymer is rigid and strong with high heat resistance — ideal for microwave containers and structural parts. PP copolymer contains ethylene, making it more impact resistant at low temperatures — used for automotive bumpers and pallets. Choose copolymer when toughness matters.
Can PP powder be used directly in injection molding?
No. PP powder (粉料) is a raw feedstock for compounding and modification. It must be melt-compounded with additives (stabilizers, fillers, pigments) and pelletized before it can be injection molded. Our PP pellets are ready to use directly.
Need PP? Let's Talk.
Tell us your application and processing method — we'll recommend the right PP grade within 24 hours.