Complaint
Polystyrene (PS) granules: is composed of styrenemonomer (SM) polymerization, can be synthesized by a variety of synthetic methods, the current industry mainly by bulk polymerization and suspension polymerization.
Polystyrene(PS) is a thermoplastic non-crystalline resin, mainly divided into General Purpose polystyrene (GPPS), High Impact polystyrene (HIPS) and Expandable Polystyrene (EPS) .
1. Polystyrene foam (Expanded Polystyrene referred to as EPS) is a light-weight polymer. It is the use of polystyrene resin into the blowing agent, while heating to soften, produce gas,forming a hard closed-cell structure foam Plastic.
2.Impact resistant polystyrene (HIPS) is an impact resistant polystyrene product produced by adding polybutyl rubber particles to polystyrene.
| Vicat 50ºC/hr 3.2mm | 97 | ºC | ASTM D1525 |
Item | Test conditions | Test method | Test data | unit |
| Density | ISO 1183:1987 | 1040 | kg/m3 | |
| Water absorption | ISO 62:1999 | <0.1 | % | |
| Melt flow rate | 200°C/5kg | ISO 1133:1997 | 3.8 | cm3/10min |
| Process shrinkage | ISO 294-4:1997 | 0.4-0.6 | % | |
| Charpy impact strength | 1eU | ISO 179:1993 | 15 | kj/m2 |
| Tensile modulus | 1mm/min | ISO 527-2:1993 | 3300 | MPa |
| Elongation | 50mm/min | ISO 527-2:1993 | 3 | % |
| Tensile strength at break | 50mm/min | ISO 527-2:1993 | 55 | MPa |
| Ball indentation hardness H | 358N/30s | ISO 2039-1:1993 | 150 | N/mm2 |
| Bending strength | 2mm/min | ISO 178:1993 | 100 | MPa |
| HDT | 1.8MPa | ISO 75-2:1993 | 84 | °C |
| Linear coefficient of thermal expansion | (23-80)°C | DIN 53 752 | 0.8-1.0 | K-1 |
| Heat conduction | DIN 52 612 | 0.16 | W/mK | |
| Vicat softening point | B50/oil | ISO 306:1994 | 93 | °C |
| Flame retardance | >1.4mm | UL-Standard 94 | 94HB | Class |
1.Food packaging.
2.Electrical industrial, instrumentation, communications equipment industry and other various instruments has been widely used as a shell, lamp, optical parts, equipment parts, transparent windows mirror, transparent model, acid, chemical storage tank,acid tank transport, telecommunications components, high frequency capacitors, high frequency insulation pads,brackets, inserts and frozen insulating materials.
3.All kinds of daily necessities,such as Plastic Cutlery, Toys.
In 25kg PP woven bag, or per your requirement.
Our main products
1. Delivery time
a) For the stock items, we can arrange the shippment within 5~10 days after received your payment. For the customized items, we will indicate the delivery time in the quotation list.
2. MOQ&Shipping
a) Full containers by sea
b) Small quantity(25kg), by air or by LCL or by Express as your requirement
3. Payment term
a) Small quantity recommend West Union
b) Full containers recommend T/T or L/C
4. How is the charge for sample?
Free samples available, shipping cost to be borne by the buyer.
5. What's your package?
Basically our packing is 25 kg per bag.
6. Can you give warranty of your products?
Yes, we extend a 100% satifisfaction guarantee on all items. Please feel free to provide timely feedback if you're not satisfied with our Quality and Service. For the overseas orders, if there is a quality problem, please kindly to provide the picturers to show the problem by e-mail.
