GPPS Plastic Granules Grade Polystyrene Have High Impact Raw Material
Styrenics Resin Properties and Applications
GPPS (General Purpose Polystyrene)
General purpose polystyrene (GPPS) is one of the most widely used kinds of plastic that has
excellent transparency, high stiffness and excellent moldability (injection, extrusion, foam molding,
etc.). GPPS is used for disposable cups, case for a box lunch and a household dishes,
confectionary tray, package, CD cases, container for a seasoning, various films, etc.
Features of GPPS for Conventional Grades
• Moldings of excellent transparency and beautiful color
and appearance
• Excellent processability with high production efficiency
• Superior electrical and mechanical properties
Features of GPPS for Performance Grades
Super high molecular weight (over MW: 320,000)
• Wide range moldability and highly improved mechanical properties
• Uses for specific purpose such as:
• Large-sized moldings
• - Complex-shaped moldings
• - Thin-walled moldings
• - Foam extrusion moldings
• - Biaxially oriented polystyrene sheet (B.O.P.S)
Application scenarios:
Property |
Test Method |
Unit |
General Purpose PS |
DR555 |
DR555F |
DR168 |
GP535 |
GP525 |
Melt Flow Index |
GB/T3682.1-2018 |
g/10 min |
3.9 |
3.5-4.5 |
2.9 |
3.7 |
7.4 |
Charpy Impact
Strength |
GB/T1043-2008 |
kJ/m2 |
11.83 |
15 |
17.29 |
10.6 |
8.4 |
Tensile Strength |
GB/T1040.1-2006 |
MPa |
44.72 |
50.67 |
47.46 |
44.5 |
44.7 |
Vicat Softening
Point |
GB/T1633-2000 |
ºC |
97 |
100 |
99.9 |
97.1 |
93.7 |
Light Transmittance |
GB/T2410-2008 |
% |
90.64 |
90.32 |
90.32 |
90 |
89.8 |
Characteristics |
High heat
resistance |
High strength, High heat
resistance, Fast curing |
High strength, High heat resistance, Fast curing |
Extrusion and
injection molding,
High heat resistance |
Injection molding |
Application |
Extruded
foamed
sheet |
Flame retardant
extruded
foamed plate, XPS flame
retardant carrier |
Optical materials, Extruded foamed
plate and sheet,
Other injection
molded parts,
Fruit box |
Tableware,
Lampshades, Crystal plates,
Refrigerator drawer,
Toys |
Food containers, Stationery, Toys, Cassettes,
Cosmetic cases |
Company Profile
We are committed to searching and discovering new trends in the field of global materials, and bringing the high-tech new materials from the world's top chemical enterprises to the Chinese market for wide application.
Main products: Optical glue, resin raw materials, film products and related raw materials applied in the photoelectric industry; General and modified resins, chemical raw materials, engineering plastics and related materials applied in home appliance, automobile industries; Chemical materials, fibers and fiber prepreg products applied in the carbon fiber industry; Import and export of mechanical and electronic equipment.
Main industries covered: Home appliances, electronics, medical, auto parts, packaging, building materials, stationery, toys, lamps, bags and so on.
Main products: PC, PE, PP, ABS, AS, PC/ABS, GPPS, HIPS, K rubber, POM, PA6, HDPE, MBS and other plastic raw materials. Plastic modification raw materials; Carbon fiber materials and construction; Photoelectric materials, glue, liquid crystal module.