After special surface modification treatment, it has excellent compatibility with rubber and plastic matrix, and can be evenly dispersed in the polymer system to form a three-dimensional reinforcement network. It can increase the tensile strength of EPDM rubber by 28% and the elongation at break by 15%. Its excellent oil absorption performance can improve the processing fluidity of plastics, and its high temperature resistance up to 1350℃ meets the heat resistance requirements of high-end applications such as automobiles and home appliances, solving the problems of excessive material hardness and accelerated aging caused by traditional fillers.
The oil absorption value is 83g/100g, particle size D50=2.2μm, D90=4.8μm, alumina content is 37.6%, iron oxide content is 0.11%, pH value is 7.8, bulk density is 0.56g/cm³, moisture is 0.5%, volatile content is 0.7%, surface modifier is silane coupling agent KH550. It is packaged in moisture-proof woven bags of 25kg per Bag or 1 Ton/Pallet ton bags.
It is used as a filling reinforcement for automotive rubber seals, wire and cable sheaths, plastic pipes and home appliance shells, as well as a functional filler for sealants and coatings. It is suitable for various processing technologies such as extrusion, injection molding and calendering, helping enterprises improve the durability and anti-aging performance of products.
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