Injection molding plastic material: PS

author: Universe plastic

2024-07-17

PS (Polystyrene) is a thermoplastic material with excellent material properties that can be processed through the injection molding process Manufactures most PS plastic products.

PS plastic materials are very popular, but they must be used rationally in injection molding projects. The following is the experience shared by Universe Plastics engineers about the application of PS materials in injection molding manufacturing:

Categories and performance parameters of PS materials for injection molding

type	GPPS（General grade）	HIPS（High impact resistance）
density	1.04-1.07 g/cm³	1.04-1.07 g/cm³
The melt flow rate	3-10 g/10min	1-8 g/10min
Tensile Strength	40-60 MPa	15-35 MPa
Bending strength	60-100 MPa	20-50 MPa
Impact strength	2-5 kJ/m²	10-20 kJ/m²
Heat distortion temperature	70-100°C	60-90°C
Shrinkage	0.3-0.7%	0.3-0.7%

*The above data source search statistics

PS material injection molding characteristics

1. Transparency

GPPS has excellent transparency and gloss and is suitable for plastic manufacturing that requires transparency.

2. Hardness and brittleness

GPPS has high hardness, but is brittle and easy to break. HIPS improves toughness and impact resistance and reduces brittleness by adding rubber toughening agents.

3. Density

About 1.04-1.07 g/cm³, relatively light, suitable for manufacturing lightweight products.

4. Processing performance

PS has excellent processing properties and is easy to form. It is suitable for various molding processes such as injection molding, extrusion, blow molding and foaming. It has lower molding temperature and shorter molding cycle.

5. Shrinkage rate

PS has low shrinkage and good dimensional stability after molding.

6. Electrical insulation performance

The excellent electrical insulation properties of PS make it suitable for the manufacture of electronic and electrical components.

7. Chemical resistance

PS material has good resistance to acid and alkali solutions, but is easily dissolved by grease and organic solvents.

8. Cost-effectiveness

PS raw material costs are relatively low, the production process is simple, and the economic benefits are high.

9. Environmental friendliness

Recyclable, waste PS materials can be reprocessed and used to reduce environmental pollution.

PS material injection molding application

1. Food packaging: disposable tableware, cups, food containers, etc.

2. Household appliances: refrigerator liner, TV casing, etc.

3. Daily necessities: toys, stationery, cosmetic containers, etc.

4. Medical equipment: laboratory utensils, disposable medical supplies, etc.

5. Building materials: decorative panels, sound insulation panels, etc.

Summarize

PS material has been widely used in injection molding applications in food packaging, home appliance casings, toys, stationery, building materials and other fields due to its excellent transparency, processing performance and electrical insulation properties, as well as low cost.

Dongguan Universe Plastic Factory has more than 15 years of experience in PS plastic injection molding, has high-quality and stable PS material supply channels, and can provide high-quality and cost-effective PS plastic injection molding services.

If you are looking for a professional injection molding factory, please contact us to get the latest service quotation.

Plastic manufacturing process: multi-stage injection molding

Injection molding plastic material: ABS