Common Fillers in Plastic Injection Molding

Quiz by: What Are the Most Common Fillers Used in Plastic Injection Molding? — Refer to this article for more details.

Which inorganic filler is known for improving the hardness and reducing the cost of plastics in injection molding?

Calcium carbonate is a widely used inorganic filler that enhances hardness and reduces costs due to its abundance and low price, particularly in polyethylene and polypropylene applications.

What benefit does talc provide in plastic injection molding?

Talc enhances the rigidity and thermal stability of plastics, making it ideal for engineering plastics like nylon and polyester due to its layered structure.

Which filler gives plastic products a natural wood appearance?

Wood powder is an organic filler that imparts a natural wood appearance to plastic products while also reducing material costs, commonly used in wood-plastic composites.

Which organic filler is biodegradable and helps improve the environmental profile of plastics?

Starch is a biodegradable organic filler that improves the environmental footprint of plastics by facilitating decomposition, aligning with sustainability goals.

What property does glass fiber primarily enhance in plastics?

Glass fiber significantly enhances the mechanical properties of plastics, such as tensile and impact strength, making it ideal for reinforced plastic applications.

Which filler has a needle-like structure that improves strength and dimensional stability in high-performance plastics?

Wollastonite's needle-like fiber structure enhances the strength and dimensional stability of high-performance plastics such as polycarbonate.

Which filler can potentially roughen the surface of plastic products, requiring post-treatment?

Glass fiber can roughen the surface of plastic products due to its fibrous nature, necessitating post-treatment to achieve smooth finishes.

Which filler type is often chosen for its ability to reduce overall material costs while being eco-friendly?

Wood powder reduces material costs and provides eco-friendly benefits due to its renewable nature, offering a balance between affordability and environmental responsibility.