Core and Cavity for Injection Molding
Unlock the secret to flawless injection molding! The little features around the mold that ensure the most perfectly shaped parts...
Polystyrene (PS) Injection Molding Service
From prototypes to production, our PS injection molding ensures precision, speed, and reliable results.
PS in Injection Molding
Polystyrene (PS) is a thermoplastic known for its ease of processing, excellent clarity, and rigidity.
Polystyrene’s compatibility with injection molding stems from several key properties. Firstly, PS has excellent flow characteristics when melted, allowing it to fill intricate molds efficiently and accurately. This ensures the production of detailed and complex shapes, essential for creating high-quality parts with consistent performance.
Moreover, PS’s relatively low melting point helps reduce energy consumption during the injection molding process. This characteristic also minimizes the thermal degradation of the material, ensuring that the final products retain their desired properties.
PS is known for its excellent clarity and rigidity, making it ideal for applications requiring transparency and strength. These properties are particularly important for products like consumer goods, packaging, and medical devices, where visual appeal and structural integrity are crucial.
Additionally, PS offers good dimensional stability, ensuring that the molded parts maintain their shape and size over time. This property is essential for applications where precision and consistency are critical
| Price: | $$ | Available UPE at RapidDirect: | PS Transparent |
|---|---|
| Lead Time: | < 5 days |
| Wall Thickness: | 1mm |
| Tolerances: | ISO2768-C |
| Max Part Size: | 300 mm x 300 mm x 300 mm |
Plastic Polystyrene Properties
| Properties | Value |
|---|---|
| Density | 1.04-1.07 g/cm³ |
| Tensile Strength | 40-50 MPa |
| Flexural Strength | 200 - 350% |
| Impact Strength | Low to Moderate |
| Thermal Conductivity | 0.033 W/(m·K) |
| Melting Point | 240°C |
| Coefficient of Friction | 80 x 10^-6 /°C |
| Coefficient of Thermal Expansion | 150 - 200 x 10^-6 /°C |
| Moisture Absorption | Very Low |
| Chemical Resistance | Poor to Moderate |
| UV Resistance | Poor |
Pros and Cons of PS Injection Molding
PS plastic offers many benefits that make it suitable for injection molding. However, there are some of its downsides to consider before choosing it for any project.
Pros
- Easy to process with excellent clarity.
- Cost-effective for large production runs.
Cons
- Limited chemical and UV resistance.
- Lower impact strength compared to other thermoplastics.
Applications of Injection Molded PS Parts
Injection molded PS parts are widely used across various industries, including:
- Consumer Goods: Toys, household items, and electronics.
- Packaging: Clear packaging materials and containers.
- Medical Devices: Disposable medical products and labware.
- Industrial Applications: Insulation and structural components.
FAQs
PS requires precise temperature control during the molding process. It melts at around 240°C, and maintaining consistent temperatures helps avoid defects like warping and ensures uniform part quality.
PS is not considered environmentally friendly due to its poor biodegradability and challenges in recycling. However, advancements in recycling technologies are improving its sustainability profile.
Yes, PS is commonly used for food-related products like disposable utensils, containers, and packaging. It is safe for food contact when manufactured under the appropriate conditions.
PS injection molding allows for various customization options, including color matching, surface finishes, and complex geometries. Additionally, it supports overmolding and insert molding techniques to enhance functionality.
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