Rubber industry is one of the main basic industries of the national economy, it is widely used in automobile tires, footwear and rubber hose and other industries, however, untreated rubber is not of any practical value, in order to give rubber products high strength, high elasticity, corrosion resistance, high and low temperature resistance, insulation, noise reduction and easy to process and other properties, a small amount of rubber is widely added in rubber processing.
Plastic additives, also known as plastic additives, are some compounds that must be added when the polymer (synthetic resin) is formed to improve its processing performance or to improve the insufficient performance of the resin itself. For example, in order to reduce the molding temperature of polyvinyl chloride resin, to make the product soft and added plasticizer; Another example is to add blowing agents in order to prepare foam plastics with light weight, vibration resistance, heat insulation and sound insulation;
Plastic refers to the resin (or monomer directly polymerization in the process) as the main component, with plasticizer, filling lubricant, coloring agent and other additives as auxiliary components, in the process of flow molding materials. Plastics mainly have the following characteristics: 1. Most plastics are light, good chemical stability, and will not rust; 2. Good impact resistance; 3. Good transparency and wear resistance; 4. Good insulation, low thermal conductivity; 5. General formability, good coloring, low cost; 6. Most plastics have poor heat resistance, large thermal expansion rate and easy combustion; 7. Poor dimensional stability and easy deformation; 8. Plastic has poor low temperature resistance and becomes brittle at low temperatures; 9. Easy to age; 10. Some plastics are soluble in solvents.
Rubber is a high elastic polymer compound. And has excellent fatigue strength, high wear resistance, electrical insulation, density and corrosion resistance, solvent resistance, high temperature resistance, low temperature resistance and other special properties. Therefore, it has become an important industrial material. Natural rubber has good elasticity at room temperature, and the resilience can reach more than 50% to 85%.
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