First, the main characteristics of hollow microspheres in plastic applications:
1. Good activity and stable product size: Hollow microbeads have excellent activity performance, can improve production efficiency, reduce energy consumption, and improve product dimensional stability to prevent warpage.
2, improve the appearance, eliminate the exposure of glass fiber: glass fiber modification for various engineering plastics can eliminate the phenomenon of glass fiber exposure, improve the performance of activities, reduce the amount of glass fiber, reduce the cost.
3, good thermal stability, flame retardant: hollow microbeads have high melting point and do not decompose under high temperature, which can improve the flame retardancy and heat distortion temperature of the products.
4, low oil absorption: hollow microbeads oil absorption is much lower than conventional fillers, can be filled a lot, especially suitable for the processing of PVC soft products (such as artificial leather, soles, etc.), can reduce the amount of plasticizer, greatly reduce the cost .
5, good edge, low water absorption: hollow microbeads have higher specific resistance, low water absorption (0.2%), used in the production of cable edge materials.
6. Strong corrosion resistance: The hollow microbeads are mainly composed of aluminum silicate, which can be kept stable in various organic solutions and acid and alkali solvents.
7, small bulk density: can reduce the weight of the product, to a certain extent reduce the cost.
Second, the hollow microbeads are mainly used in the following rubber products.
1. Modification of engineering plastics such as nylon, PP, PBT, PC, POM, etc., can improve the activity, eliminate the exposure of glass fiber, overcome the warpage, improve the flame retardant performance, reduce the amount of glass fiber and reduce the production cost.
2, filled with rigid PVC, PP, PE, production profile, pipe and sheet, the product can have good dimensional stability, progressive rigidity and heat-resistant temperature, improve product cost performance, improve production efficiency, reduce costs.
3, filled in PVC, PE and other cables, the edge of the sheath material, can improve the product's high temperature, edge, acid and alkali resistance and product processing performance, improve production, reduce costs.
4, filled with epoxy resin copper plate, can reduce the viscosity of the resin, improve the bending strength, improve its physical and mechanical properties, improve the glass transition temperature, reduce the dielectric constant, reduce water absorption, reduce costs.
5, filled with unsaturated polyester, can reduce the product shrinkage and washing rate, improve wear resistance and hardness, and less holes in lamination and coating, used in FRP products, polishing wheels, tools and so on.
6, filled with silicone resin, can improve physical and mechanical properties, a large amount of filling can greatly reduce the cost, is an ideal material for the production of molds.
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