Plastic
The use of fumed silica is light-transmissive and has a small particle size, which makes the plastic more compact. After adding fumed silica to the polystyrene plastic film, it not only improves its transparency, strength and toughness, but also has waterproof and anti-aging properties. Significantly improved. The hardness, smoothness and anti-aging properties of plastic steel doors and windows produced by adding a small amount of fumed silica to ordinary plastic polyvinyl chloride are greatly improved. The general plastic polypropylene is modified by gas phase white carbon black. The main technical indexes (water absorption, insulation resistance, compression residual deformation, flexural strength, etc.) meet or exceed the performance index of engineering plastic nylon 6, and the polypropylene railway is realized. The replacement of nylon 6 for accessories has greatly reduced the cost of the product, and its economic and social benefits are remarkable.

Coating
China is a big country in the production and consumption of paints. However, the current domestic coatings generally have shortcomings in performance, such as poor suspension stability, poor thixotropy, poor weather resistance and poor scrubbing resistance, resulting in the import of a large number of high quality coatings every year. Some paint manufacturers in Shanghai, Beijing, Hangzhou, Ningbo and other places dare to innovate and successfully realize the application of fumed silica in coatings. This nano-modified coating has changed the defects of previous products and tested its main performance indicators. Except for the contrast ratio, the rest have been greatly improved. For example, the scrub resistance of exterior wall paint has been increased from more than 1,000 times to more than 10,000 times. The artificial accelerated weathering and artificial radiation exposure aging time is 250 hours ( Powdered grade 1, discoloration grade 2) increased to 600 hours (no powdering, no discoloration of the paint film, color difference 4.8), in addition, the bonding strength between the coating film and the wall is greatly improved, the hardness of the coating film is significantly increased, and the surface self-cleaning ability Also improved.

Rubber
Rubber is an elastic body with excellent stretchability, but its comprehensive performance is not satisfactory. In the process of producing rubber products, carbon black is usually added to the rubber to improve strength, wear resistance and aging resistance, but The addition of black makes the products black and the grade is not high. The advent of fumed silica in China has laid a material foundation for the production of a new generation of rubber products with novel colors and excellent performance. After adding a small amount of fumed silica to ordinary rubber, the strength, wear resistance and aging resistance of the product meet or exceed the high-grade rubber products, and the color can be kept unchanged for a long time. The nano-modified color EPDM waterproofing membrane has obvious improvement in wear resistance, tensile strength, folding resistance and anti-aging property, and has bright colors and excellent color retention effect. The development of color tires has also made some progress. For example, the flexural performance of the tire side rubber has been improved from 100,000 times to more than 500,000 times. It is expected that in the near future, the colorization of domestic and motorcycle tires will be realized.