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acid, ammonia, amines, hydrogen peroxide, sodium hydroxide, potassium hydroxide and the like at room temperature Solution. But not resistant to strong oxidizing corrosion, such as fuming sulfuric acid �� concentrated nitric acid, chromic acid and sulfuric acid mixture. At room temperature the above solvents will have a slow erosion of polyethylene, and at 90 --- 100 ��, concentrated sulfuric acid and concentrated nitric acid will quickly attack the polyethylene, exterior grade honeycomb plywood North Americaso that its destruction or decomposition. Polyethylene under the action of the
atmosphere, sunlight and oxygen, aging, discoloration, cracking, brittle or pulverized, loss of its mechanical properties. In the molding temperature, but also because of oxidation, the melt degree of decline, the occurrence of discoloration,how to make a fence of recycled composites streaks, and therefore in the molding process and the use of process or material selection should be noted. Precisely for these reasons, wood-plastic profiles made from mixed polyethylene (PE) are generally suitable for outdoor use. Polyethylene (PE) under the high-density polyethylene is a
highly crystalline, non-polar thermoplastic resin. The polymer is not hygroscopic and has good water vapor resistance. HDPE has good electrical properties, especially high dielectric strength, medium to high molecular weight grade with excellent impact resistance, even at room temperature and even at a low temperature of -40 degrees Celsius.decorative finish panels multi colored can alternative Because of these features, wood-plastic materials blended with high-density polyethylene are suitable for outdoor use. Shaoxing Yongsheng New Materials Co., Ltd.