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How should the rubber products be dirty?
- The first to use the broom to clean the surface of rubber products. Then wash it with detergent and warm water and mix it thoroughly. Blow up the wet rubber products.s
What is rubber made of?
- High elastic polymer compound. It is divided into two kinds: natural rubber and synthetic rubber. Natural rubber is made from rubber, tree, rubber, grass and other plants. The synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in industry or in all fields of life.s
How to make white rubber products do not yellow or delay yellowing time?
- 1, raw material itself yellow degeneration, for example, NR aging resistance than SBR and BR difference.2, the matching of accelerant system. The accelerator can use DM and M to achieve yellow change 4, but the whole system needs to be adjusted. The use of anti yellowing enhancers such as two dithiocarbamate on yellow Bianyou benefits, but at the expense of great property and operation. The faster the sulfidation rate, the less the chance of breaking the chain, and the aging degree is restrained. But at the same time sacrificing the comprehensive nature. The cross-linking bonds generated by rapid vulcanization and slow vulcanization are different. For example, tension, tear and so on, are greatly affected. But the elasticity brittleness will increase.s
What are the differences in the properties of neoprene models?
- Good physical and mechanical properties, oil resistance, heat resistance, fire resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagents. The disadvantage is cold resistance and poor storage stability. With high tensile strength, elongation and reversible crystallinity, good adhesion. Aging resistance, heat resistance. Excellent oil resistance and chemical resistance. Weatherability and ozone resistance are second only to that of ethylene propylene rubber and butyl rubber. The heat resistance and the nitrile rubber, the decomposition temperature of 230~260 DEG C, short-term resistance at 80~100 DEG 120~150 DEG C, can be used for a long time, with a certain flame retardancy. Oil resistance second only to nbr. Good resistance to inorganic acids and alkalis. Cold resistance is slightly worse, electrical insulation is poor. Rubber poor storage stability, will have a "sulfur" phenomenon, Mooney viscosity increased, hard rubber. Foreign brands are: AD 1, 30 (USA), A-90 (Japan), 320 (Germany), and MA40S (France).s
What are the hazards of waste rubber and how can they be used for regeneration?
- In addition to piling up waste rubber products as fuel burning, scientists have been studying more effective waste rubber regeneration technology since 1910. Reclaimed rubber refers to the physical and chemical processes such as comminution, heating and mechanical treatment of waste vulcanized rubber, which can change from elastic state to vulcanized rubber with plasticity and viscosity. The essence of the regeneration process is the comprehensive effect in heat, oxygen, mechanical function and recycling agent of chemical and physical functions, make the network vulcanizate degradation, the fracture position of both crosslinks, also have large molecular cross-linking bond between. Rubber regeneration methods can be broadly divided into two categories: physical regeneration and chemical regeneration.s
Is work in rubber products harmful to health?
- In the manufacture of rubber products, the rubber itself is not toxic, but some agents are toxic, so most of the factories are now using intelligent small drug batching system, to avoid direct contact with the human body. In use, some contact with the human body rubber requirements are very high, from the choice of gum species (usually silicone rubber and PU), to the use of mixing agents, have strict requirements. If the general use, such as tires, seals and so on, and the body does not matter much.s
Why do rubber products Blister?
- A lot of reasons, but the main factors are: 1) there are 2 water) mixed rubber Mooney viscosity high fluidity of the compound 3) poor curing pressure lowFrom what you say without adding mold agent foaming phenomenon is more obvious in terms of liquidity, the reason may not glue a problem.s
How can rubber be preserved without decay?
- Early rubber was made from latex of rubber trees, rubber grass and other materials made of flexible, insulating, impermeable and air. High elastic polymer compound. It is divided into two kinds: natural rubber and synthetic rubber. Natural rubber is made from rubber, tree, rubber, grass and other plants. The synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in industry or in all fields of life.s
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