Factory and Activities
Specifications
General Information
| Property | Detail |
|---|---|
| Product Name | GPPS 300NT |
| Polymer Type | General Purpose Polystyrene (GPPS) |
| Manufacturer | PetroChina Dushanzi |
| Brand Name | KUNLUN |
| Appearance | Transparent, colorless solid pellets |
Technical Properties
| Test Items | Unit | GPPS-300NT |
|---|---|---|
| Particle appearance - Color particles | pcs/kg | 0 |
| MFR (5.00kg) | g/10min | 3.0±1.0 |
| Vicat softening point | °C | ≥96 |
| Charpy impact strength | kJ/m² | ≥7.5 |
| Yellow index | / | -8~-4 |
| Residual styrene monomer | 10&supmin;&sup6; (wt) | ≤300 |
Applications
Light Diffusion Plates and Optical Sheets
Extrusion lines require consistent melt flow to produce uniform optical sheets without thickness variations. GPPS 300NT delivers the necessary clarity and low yellow index required for LED lighting panels, display backlights, and architectural lighting covers. The 3.0 MFR allows for smooth sheet extrusion without excessive die swell, ensuring flat, defect-free panels.
Transparent Consumer Goods
Injection molders rely on the material's high rigidity and dimensional stability for household items, office supplies, and cosmetic packaging. A Charpy impact strength of ≥7.5 kJ/m² provides adequate durability for everyday handling and transport. Low residual monomer levels ensure the final molded products remain completely odor-free upon unboxing.
PetroChina GPPS Grade Comparison
PetroChina Dushanzi formulates different GPPS grades to accommodate specific processing methods and factory equipment. BASTONE technical advisors help procurement teams select the exact grade based on cycle time targets and end-use requirements.
GPPS 150NT: Features a lower melt flow rate and higher melt strength. Manufacturers select the 150NT grade for heavy-gauge sheet extrusion, XPS foam boards, and applications requiring maximum heat resistance.
GPPS 300NT: Acts as a versatile mid-flow transition grade. The resin balances extrusion capabilities for optical sheets with standard injection molding requirements for rigid transparent parts.
GPPS 500NT: Offers a high melt flow index designed for rapid processing. Injection molders choose the 500NT grade to quickly fill thin-walled parts with complex geometries, reducing overall cycle times.
Why Source Through BASTONE
Chemical distribution requires strict adherence to batch consistency and transparent documentation. BASTONE Petrochem operates as an authorized distributor for China's top petrochemical producers, including PetroChina and SINOPEC. Factory-direct sourcing guarantees buyers receive authentic Kunlun-brand resins backed by original manufacturer COAs, rather than mixed-batch materials from secondary traders.
Our parent company integrates deep R&D capabilities with extensive manufacturing experience across four production sites. Technical specialists at BASTONE understand the precise rheological requirements of plastic compounding and extrusion. Supply chain teams coordinate directly with PetroChina facilities to secure volume allocations, protecting our clients from raw material shortages during tight market conditions.
International logistics demand careful planning and execution. Zhejiang Bastone Technology Co., Ltd manages the entire export process, from port loading to final customs clearance. Flexible trade terms, accurate shipping documentation, and reliable container booking ensure raw materials arrive at your facility exactly when production schedules dictate.
Sourcing & Logistics
| Sourcing Parameter | Details |
|---|---|
| Supply Origin | China |
| Manufacturer | PetroChina Dushanzi (KUNLUN Brand) |
| Packaging | 25kg standard woven bags with moisture-proof inner liner |
| Export Entity | Zhejiang Bastone Technology Co., Ltd. |
| Documentation | COA, MSDS, Commercial Invoice, Packing List, Bill of Lading |
| Trade Terms | FOB, CIF, CFR |
| Sample Availability | Available upon request for factory trials |
