Factory and Activities
Specifications
General Information
| Property | Detail |
|---|---|
| Product Name | PP EP531N |
| Polymer Type | Impact Copolymer Polypropylene (ICP) |
| Manufacturer | PetroChina Lanzhou Petrochemical Company |
| Production Process | Spheripol-II Double Pipe + Single Gas Phase |
| Comonomer | Ethylene |
| Catalyst System | Ziegler-Natta |
| Execution Standard | Q/SY LS0305-2017 |
| Appearance | Natural cylindrical or flat-round pellets, 2–5 mm |
Technical Properties
| Property | Unit | Specification | Test Method |
|---|---|---|---|
| Particle Appearance (defects) | pcs/kg | ≤10 | SH/T 1541-2006 |
| Melt Flow Rate (MFR) | g/10min | 20–25 | GB/T 3682-2000 |
| Tensile Strength at Yield | MPa | ≥19.0 | GB/T 1040.2-2006 |
| Flexural Modulus | MPa | ≥800 | GB/T 9341-2008 |
| Charpy Impact Strength (23°C) | kJ/m² | ≥40 | GB/T 1043.1-2008 |
Recommended Processing Conditions
| Parameter | Value |
|---|---|
| Melt Temperature | 200–230°C |
| Note | Specific conditions depend on part geometry and equipment; adjust accordingly |
Applications
EP531N is formulated as a modification base resin — meaning processors typically compound it with talc fillers, rubber modifiers, or functional additives before molding final parts. The grade's high flow makes it well-suited as a starting matrix for modified PP compounds targeting automotive bumper systems. Bumper fascias require rapid, complete mold fill across thin-wall sections, and the 20–25 g/10min MFR range gives compounders the processing window to incorporate talc loadings (typically 10–20%) without excessive viscosity buildup.
Interior trim components — door panel substrates, pillar covers, glove box structures — draw on the flexural modulus and low-odor profile simultaneously. Structural panels need dimensional stability under the thermal cycling of automotive cabins; the ≥800 MPa modulus specification ensures EP531N-based compounds hold shape without creep under long-term static load. The low-odor production characteristic, achieved through controlled degassing at the Lanzhou plant, reduces post-processing outgassing that VOC-sensitive interior applications cannot tolerate.
The Charpy impact floor of 40 kJ/m² at 23°C makes EP531N a viable foundation for compounds targeting cold-weather pedestrian safety standards, where bumper and fascia materials are tested at temperatures where rubber-toughened ICPs often show performance gaps. While final cold-impact performance depends heavily on the compound formulation, the base resin impact capability sets a ceiling on what is achievable — and 40 kJ/m² gives compounders meaningful headroom.
Why Source Through BASTONE
BASTONE Petrochem holds listed distributor status with SINOPEC and maintains established sourcing relationships with PetroChina supply channels — including Lanzhou Petrochemical. Buyers sourcing EP531N through BASTONE receive factory-origin COA documentation with production batch traceability, not third-party reissued certificates. For automotive supply chains operating under IATF 16949 or similar quality frameworks, documentation lineage is a qualification requirement, not a preference.
The BASTONE group's R&D backbone distinguishes it from pure trading operations. The parent company runs four production sites and a dedicated R&D center, which means the BASTONE technical team carries working knowledge of polymer processing and compounding. When a procurement manager needs to evaluate whether EP531N or a higher-MFR ICP grade better fits a specific mold design or compound recipe, BASTONE can provide grade comparison support grounded in actual processing experience — not a datasheet-reading exercise.
Export execution is handled through Zhejiang Bastone Technology Co., Ltd, which manages logistics, customs documentation, and trade terms across multiple export routes. BASTONE handles FOB, CIF, and CNF arrangements, coordinates container-load logistics from Chinese ports, and supports buyers on documentation sets including packing lists, COAs, MSDS, and origin certificates. Sample availability for grade qualification can be arranged prior to bulk order commitment.
Sourcing & Logistics
| Parameter | Detail |
|---|---|
| Supply Origin | PetroChina Lanzhou Petrochemical Company, China |
| Packaging | 25 kg woven PP bags (standard); bulk container options subject to inquiry |
| Export Entity | Zhejiang Bastone Technology Co., Ltd |
| Documentation | Factory COA, MSDS, Packing List, Certificate of Origin |
| Trade Terms | FOB, CIF, CNF — flexible by buyer requirement |
| Sample Availability | Available for grade qualification prior to bulk order |