Mica is a flaky reinforcing filler, mica According to the research for the surface modification treatment with a titanate coupling agent-modified mica powder filled polypropylene, a tensile modulus of the modified composite material, fracture elongation, notched impact strength, flexural strength, flexural modulus, as compared with pure polypropylene material has improved greatly, and the tensile strength decreased slightly. The modified mica powder in plastic (1) Enhanced same principle with rubber to improve the physical and mechanical properties, a very broad range of applications. Coupling treatment is the key to the application of the field. Such as to improve the rigidity, hardness, dimensional stability, etc., of the lower coupling requirements. Stretching, rolling and other plastic products, processing and enhance the best effects (caused by the parallel orientation of mica chips). Thus can be made of plastic products thinner and lighter, saving the consumption of raw materials (especially plastic resin), the great economic sense, is a foreign key research areas. (2) to improve the anti-permeability principle with the former. The main application of automotive plastic fuel tank (better security than the metal fuel tank), aerated drinks bottles (light and safety), pharmaceuticals, food, cosmetics and similar products, bottles and other tight requirements packaging materials. (3) infrared and ultraviolet shielding principle is substantially transparent to visible light, but opaque to the infrared and ultraviolet. The greenhouse temperature than conventional plastic sheeting used for plastic sheeting about 2 ° C, night performance or insulation. Used in pharmaceuticals, food and cosmetics packaging, pharmaceuticals, food, cosmetics and other storage time (shielded the ultraviolet and isolated air results) may be extended. Usage in the plastic. Particularly large amount of plastic processing, so significant, the prospects are good. The difficulty is that application technical difficulty (coupling treatment). If the transparency is required products, used mica powder should be fine, or the decreased transparency, and the haze increased. Colorless transparent products often require whiteness.