┘AES W240(The application of PC in the long-term supply of polycarbonate in a vehicle can satisfy the high performance of automotive interior material toughness, strength, heat resistance and other requirements. The application of these materials in automotive interior decoration has the irreplaceable advantages of the following materials: 1) superior impact resistance, impact strength of top in thermoplastics; 2) good finishing and the covering film adhesion; 3) high dimensional stability; 4) install the components into a whole; 5) design and processing extremely flexible application; 6) low expansion coefficient, low thermal expansion coefficient. PA6 polyamide material should have the following advantages: 1). Excellent strength and toughness, meet the mechanical properties of structural components; 2). Excellent heat resistance, can be used continuously for up to 130 DEG; 3). Long term fatigue resistance, heat aging performance good; 4) dimensional stability. Well, with anti warping effect; 5). The surface effect is good, no floating fiber); 6. Good oil resistance, corrosion resistance. Polyethylene is odorless, non-toxic, feel like wax, has excellent resistance to low temperature (Zui low temperature up to -70 ~ -100 C), good chemical stability, erosion resistance to most acid-base (not resistant to oxidizing acid), insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation properties; but the polyethylene for environmental stress (chemical and mechanical function) is very sensitive, heat aging resistance difference. The properties of polyethylene vary depending on the molecular structure and density. Types of polyethylene (1) LDPE: low density polyethylene, high pressure polyethylene (2) LLDPE: linear low density polyethylene (3) MDPE: medium density polyethylene and Shuangfeng resin (4) HDPE: high density polyethylene and low pressure polyethylene (5) UHMWPE: ultra high molecular weight polyethylene (6) modified polyethylene: CPE and crosslinked polyethylene (PEX) PPO also has the advantages of abrasion resistance, non-toxic and pollution resistance. (PPO or PPE) also known as poly oxygen, chemical name is 2,6- two -1,4- poly methyl phenyl ether. Linear polymers with 2,6-, two methyl phenol and oxygen are synthesized by oxidation and condensation in the presence of catalysts. Usually earthy yellow powder. Commonly used is composed of 2 6-, two methyl phenol synthesis of polyphenylene ether, with excellent comprehensive performance, Zui is characterized by the long-term load, has excellent dimensional stability and outstanding electrical insulation, wide temperature range, can be used for a long time in the 127 to 121 DEG C. With excellent water resistance, steam resistance, products with higher tensile strength and impact strength, creep resistance is good. PPE has good flame retardant, self extinguishing, the oxygen index of the PPE 29, as the self extinguishing material, and the oxygen index of high impact polystyrene 17 for flammable materials, one is the two most combustible medium, producing flame retardant grade PPE, do not need to add halogen flame retardant, adding the phosphorus containing flame retardant can reach UL94 standard, to reduce environmental pollution.