Mineral Filled Polypropylene Compounds With High Rigidity For Appliance Parts

Product Description

Mineral Filled Polypropylene (MFPP) compounds with high rigidity are specialized thermoplastics designed for appliance parts requiring superior stiffness, reduced warpage, and dimensional stability. By incorporating mineral fillers such as talc, calcium carbonate, or wollastonite into the polypropylene matrix (typically 10–40% by weight), the material achieves a balance of cost-effectiveness and enhanced mechanical performance. These compounds are widely used in washing machine panels, refrigerator drawers, vacuum cleaner shells, and microwave oven accessories where rigidity and long-term reliability are critical.

Properties Data Sheet

Precautions

Before injection molding, the granules should be dried at 80°C for 2–3 hours to avoid moisture-related defects. Proper mold temperature control is essential to reduce shrinkage variation and ensure smooth surface finish. Sharp corners should be avoided in part design to minimize stress concentration. For visible appliance parts, UV-stabilized and color-matched grades should be selected to prevent fading and discoloration over time.

Features, Advantages & Properties

• Increased rigidity compared to standard PP
• Low shrinkage and warpage for precise appliance housings
• Heat deflection temperature up to 120°C
• Good scratch resistance and smooth surface finish
• Excellent cost-to-performance ratio compared to engineering plastics
• Available in natural, white, grey, and customized appliance colors

Working Principle & Applications

Mineral fillers act as reinforcing agents, restricting polymer chain mobility and reducing shrinkage, thereby enhancing rigidity and dimensional stability. This makes MFPP particularly suitable for appliance covers, trays, handles, and structural panels. It ensures that appliance parts retain their shape under repeated use, temperature fluctuations, and mechanical loads, making it an ideal choice for modern household appliance manufacturing.

Frequently Asked Questions (FAQ)

Q1: Are you a manufacturer or a trading company?
A1: We are a professional manufacturer specializing in modified engineering plastics, including PA6, PA66, PP and other reinforced, flame-retardant, heat-stabilized, UV-resistant and wear-resistant compounds. With our own R&D and production facilities, we provide high-quality materials directly from the factory.

Q2: Can you provide customized material solutions?
A2: Yes. We offer tailor-made formulations according to customer requirements, including reinforcement ratio, color, additives, mechanical strength, heat resistance and processing properties. Our technical team can work closely with you to develop materials that perfectly match your application.

Q3: What industries do your products mainly serve?
A3: Our products are widely used in automotive parts, household appliances, furniture components, industrial equipment, electronics, daily necessities and more. We focus on delivering reliable engineering plastics for demanding applications.

Q4: Do you provide free samples for testing?
A4: Yes, we can provide small quantity samples free of charge for quality testing and evaluation. The customer only needs to cover the freight cost.

Q5: What are your minimum order quantity (MOQ) and lead time?
A5: Our standard MOQ is usually 10 ton per order. Lead time is typically 10-20 working days depending on the quantity and material specifications.

Q6: How do you guarantee product quality?
A6: All products are manufactured under strict quality control standards. We use advanced testing equipment to check mechanical properties, thermal stability, flame retardancy and other performance indicators. Every batch comes with a COA (Certificate of Analysis) before delivery.

Q7: Which packaging and shipping methods do you use?
A7: Our standard packaging is 25kg bags with palletized loading to ensure safe transportation. We can also offer customized packaging as requested. Shipping options include sea, air and express delivery based on customer needs.

Q8: Do your products comply with international standards?
A8: Yes. Most of our engineering plastic compounds comply with RoHS, REACH, UL94, ISO9001 and other international standards. Specific compliance documents can be provided upon request.