This raw wollastonite powder uses high-quality natural wollastonite ore, processed through dry crushing and grading processes, maintaining the natural acicular crystal structure. It forms a three-dimensional reinforcement network in the plastic matrix, solving the pain point of ordinary calcium carbonate fillers reducing the impact strength of plastics. Its high aspect ratio can effectively improve the bending modulus and heat distortion temperature of plastics, reduce plastic shrinkage rate, improve the dimensional accuracy of products, and reduce formula costs by 20%-30%. It meets ROHS environmental protection standards and adapts to most general-purpose and engineering plastic systems.
Detailed parameters include SiO2 content of 50.5±0.5%, CaO content of 45.0±0.5%, whiteness of 88±1%, average particle size of 800 mesh (about 15μm), moisture content ≤0.2%, pH value of 8.5-9.5, ignition loss ≤0.3%, acicular aspect ratio of 6:1, heavy metal content complies with ROHS standards, bulk density of 0.58 g/cm³, packaged in PP woven bags with a single bag net weight of 50kg, and custom particle size and packaging specifications are available according to customer needs.
It is mainly applied to PVC plastic pipes, PP plastic profiles, PE plastic plates, injection molded home appliance shells, automotive interior plastic parts and other scenarios. It can be used as an extender filler and reinforcing agent to improve the rigidity and heat resistance of plastic products, reduce production costs, while improving the surface gloss and printability of products. It adapts to general-purpose plastics, engineering plastics and other plastic categories, helping plastic processing enterprises reduce production costs and improve product performance.
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