Product Description
General grade polystyrene is a thermoplastic resin, colorless, odorless, tasteless and shiny, transparent beads or granular solid. Density 1.04 ~ 1.09, transparency 88% ~ 92%, refractive index 1.59 ~ 1.60. Under the action of stress, birefringence occurs, which is called stress-optical effect. The melting temperature of the product is 150 ~ 180ºC, the thermal decomposition temperature is 300ºC, the thermal deformation temperature is 70 ~ 100ºC, and the long-term use temperature is 60 ~ 80ºC. At 5 ~ 6ºC lower than the thermal deformation temperature, the stress can be eliminated and the thermal deformation temperature can be increased after annealing treatment. If a little α -methyl styrene is added in the production process, the heat resistance grade of universal polystyrene can be improved.
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Application
Polystyrene has a broad application prospect in food packaging because of its transparent and excellent rigidity, electrical performance and printing performance, especially its good sanitation and low price. In the mechanical and electrical industry, instrumentation, communication equipment industry and other aspects has been widely used in a variety of instrument shell, lamp cover, optical parts, instrument parts, transparent window mirror, transparent model, chemical acid storage tank, acid conveying tank, telecommunications parts, high frequency capacitor, high frequency insulation pad, bracket, insert and frozen insulation materials. Also widely used in a variety of daily necessities, such as bottle caps, containers, decorations, buttons, combs, toothbrushes, soap boxes, cigarette boxes and toys, etc.
Product Parameters
Item | Value | Unit | Standard |
Melt Index | 3.0 | g/10 min | ASTM D1238 |
Density23ºC | 1.05 | g/cm3 | ASTM D792 |
Rockwell Hardness M | 80 | | ASTM D785 |
Tensile strength break6mm/min 3.2mm | 52.94 | MPa | ASTM D638 |
Elongation Break 6mm/min3.2mm | 4.0 | % | ASTM D638 |
Flexural modulus 2.8mm/min | 2745.09 | MPa | ASTM D790 |
HDT 120ºC | 81 | ºC | ASTM D648 |
Vicat 50ºC/hr 3.2mm | 97 | ºC | ASTM D1525 |
Company Profile
We take "quality products, quality service, competitive price, timely delivery" as the purpose, looking forward to greater cooperation with overseas customers on the basis of mutual benefit. Our company provides a wide range of products to meet your various needs. Our main products: EVA, PET, HDPE, LDPE, LLDPE, ABS, HIPS, EPS, GPPS, PC, etc. Since its inception, the company has always adhered to the "quality first, customer first, reputation first" business policy, wholeheartedly meet the potential needs of our customers. Under the irresistible situation of economic globalization, our company is willing to cooperate sincerely with enterprises around the world to achieve a win-win situation.
Certifications

Packaging & Shipping

FAQ
1. Are youtrading company or Manufacturer ?
We are factory.
2.About Sample
We provide samples, but you need to pay the sample fee and freight.
3. About Material
We can customize the material according to customers' requirement.
4. About Quality
All the products must be tested strictly according to the testing procedure before shipment.
5. About Delivery Period
Normally delivered in 21 working days after the confirmation of order& payment. And it varies according to the material and
quantity.
6. About Payment term
It's flexible, T/T, L/C at sight,100% in advance,30% in advance, the balance by copy B/L