PS
PS (Polystyrene) Injection Molding Manufacturing
Overview of Injection Molded PS
Injection-molded PS (Polystyrene) is a thermoplastic material commonly used in plastic injection molding. It offers clarity, rigidity, and affordability, making it suitable for various consumer products, packaging, and industrial components.
Common PS Grade Neway Used In Injection Molding
General-Purpose PS
High-impact PS (HIPS)
Crystal PS (CPS)
High Heat PS (HHPS)
Flame-Retardant PS (FRPS)
Injection Molded PS Grades Comparison
Selecting the correct PS grade for injection molding involves considering factors such as mechanical strength, impact resistance, temperature resistance, and regulatory compliance. Analyze your specific part requirements and application to make an informed choice.
Key Features And Applications
PS Grade | Key Properties | Common Applications |
|---|---|---|
General-Purpose PS | - Good clarity - Rigidity - Affordability | Packaging, disposable utensils, consumer goods |
High-impact PS (HIPS) | - Enhanced impact resistance - Good rigidity - Moderate cost | Toys, automotive parts, refrigerator interiors |
Crystal PS (CPS) | - Exceptional clarity - Optical quality - Brittle | Optical lenses, CD jewel cases, clear packaging |
High Heat PS (HHPS) | - Enhanced heat resistance - Retains clarity - Higher cost | Microwave-safe containers, food service trays |
Flame-Retardant PS (FRPS) | - Flame resistance - Low smoke emissions - Electrical insulating properties | Electrical enclosures, automotive interiors, safety equipment |
Physical And Mechanical Properties of Injection Molded PS
Property | Density (g/cm³) | Tensile Strength (MPa) | Tensile Elongation (%) | Flexural Modulus (GPa) | Flexural Strength (MPa) | Izod Impact Strength (J/m) | Heat Deflection Temp. (°C) | Shrinkage (%) | Hardness (HRB) |
|---|---|---|---|---|---|---|---|---|---|
General-Purpose PS | 1.04 | 30 | 1.5 | 2.1 | 50 | 30 | 70 | 0.6 | 65 |
High-Impact PS (HIPS) | 1.04 | 40 | 10 | 2.3 | 65 | 200 | 75 | 0.5 | 70 |
Crystal PS (CPS) | 1.05 | 40 | 2 | 2.0 | 55 | 15 | 75 | 0.7 | 60 |
High Heat PS (HHPS) | 1.05 | 30 | 2 | 1.9 | 45 | 20 | 95 | 0.5 | 65 |
Flame-Retardant PS (FRPS) | 1.06 | 35 | 1.8 | 2.2 | 60 | 35 | 80 | 0.4 | 70 |
PS Grades Injection Molding Properties
General-Purpose PS
Key Properties: General-purpose PS is known for its affordability and good clarity. It has a density of approximately 1.04 g/cm³ and offers modest tensile strength and impact resistance. It is relatively rigid and exhibits low heat resistance.
Applications: This grade of PS is commonly used for packaging materials, disposable utensils, consumer goods like toys, and applications where transparency is not a primary concern.
High-Impact PS (HIPS)
Key Properties: High-impact PS, or HIPS, is engineered for enhanced impact resistance. It has a similar density to general-purpose PS but offers significantly better impact strength and moderate rigidity. It is cost-effective.
Applications: HIPS is widely used in applications where impact resistance is crucial, such as toys, automotive parts, and refrigerator interiors. Its affordability and balance of properties make it a popular choice.
Crystal PS (CPS)
Key Properties: Crystal PS, or CPS, is characterized by exceptional clarity and optical quality. It has a density of approximately 1.05 g/cm³ but is brittle and lacks impact resistance.
Applications: CPS is employed in applications where optical clarity is paramount, such as optical lenses, CD jewel cases, transparent packaging materials, and applications where aesthetics and transparency are essential.
High Heat PS (HHPS)
Key Properties: High heat PS, or HHPS, offers improved heat resistance compared to general-purpose PS. It has a density of approximately 1.05 g/cm³ and retains clarity at elevated temperatures. It is relatively rigid.
Applications: HHPS is suitable for applications requiring heat resistance, such as microwave-safe containers, food service trays, and products exposed to moderate heat.
Flame-Retardant PS (FRPS)
Key Properties: Flame-retardant PS, or FRPS, is designed to resist combustion and emit low levels of smoke. It exhibits good electrical insulating properties. Its density is around 1.06 g/cm³.
Applications: FRPS is used in applications where fire safety is critical, such as electrical enclosures, automotive interiors, safety equipment, and any application where compliance with fire safety standards is required.
What We Can Do In Plastic Injection Molding?
We can provide a one-stop service from prototyping to mass production for your custom injection molded parts. this includes
2. Mechanical Design Service
4. On-Demand Manufacturing Service
5. Simple Assembly Service
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