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FAQ
- What's the difference between natural rubber and three yuan ethylene propylene rubber?
- The electric property of natural rubber is a kind of non polar material, and it is a better insulating material. When the natural rubber vulcanization after the introduction of polarity factors, such as sulfur, accelerator, so that insulation performance.
- What is the specific gravity of natural rubber?
- Natural rubber is composed of rubber, hydrocarbon, water, resin, protein, sugar and inorganic salts, and its specific gravity is 0.90~0.93. The natural rubber without impurities is transparent and yellowish, with good viscosity and dielectric properties, and its tensile properties are generally higher than those of synthetic rubber. Soluble in benzene, solvent naphtha, carbon disulfide, carbon tetrachloride, chloroform, turpentine, etc., but not soluble in ethanol and acetone. With halogen, oxygen, ozone, peroxide, sulfur and so on. Widely used in the manufacture of rubber products, such as tires, rubber shoes, hose, tape, wire and cable insulation materials.
- Bought a mouse pad, a little rubber, how to remove?
- Rubber is a kind of deodorant used to remove or reduce the acid produced in the processing of all kinds of rubber or in the process of using the alkoxy compound, sulfide, vinyl compounds, ammonia, CO2 plastic smell of chemical additives, the smell if inhaled for a long time will stimulate the senses, give people uncomfortable feeling even harmful to the body two, produce pollution to the environment, the chemical composition of rubber and odor molecules produced and their composition and structure of the rubber is different, also uses other mechanisms, both deodorant rubber rubber itself, also want to consider a variety of additives such as odor curing agents released, the use of rubber deodorant to improve the rubber products the level of environmental protection, and improve the rubber production environment, is of great help for the comprehensive utilization of recycled rubber resources. Any of various forms of rubber, such as gas, powder, or liquid, usually used in accordance with odour and odor characteristics.
- What kind of rubber is suitable for waterproof aprons?
- One to do waterproof rubber ring, choose ethylene propylene rubber! The main sealing ring of fire ditch pipe is mainly made of ethylene propylene rubber!! Physical and chemical properties have corresponding national standards!
- Rubber Mooney value is what meaning, what is the role of
- In accordance with the provisions of the standard GB 1232 (Mooney viscosity), rotation expressed by the symbol Z100 C 1+4. Where Z rotational viscosity; 1, preheating time is 1min; 4 - rotation time is 4min; 100 C - test temperature of 100 degrees.In our country, usually with ML100 or MS100 1+4 to 1+4 DEG C said. M said L Mooney, represented by the greater trochanter, S said with a small rotor.1 preheat for 1 minutes, 4 said that the test for 4 minutes. The larger the value of Mooney viscosity, said, the plastic is widely used as a low. Index control process performance of rubber.
- What is the difference between rubber expansion joint and rubber joint?
- It is divided into 3 kinds: flange type, fixed flange type and thread type by connection. The structure can be divided into single sphere, double sphere and curved sphere. A tubular rubber component is composed of inner and outer layers of rubber, cord and steel ring, which is vulcanized and molded and then combined with a metal flange or a parallel joint. This product can reduce vibration and noise, and can be compensated by thermal expansion and cold contraction due to temperature changes. It is widely used in various piping systems. Rubber joint is a kind of pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The product uses rubber elasticity, high air tightness, medium resistance, weather resistance and radiation resistance etc., using polyester cord fabric skew high strength, strong stability and the hot and cold composite, after high pressure, mold temperature and curing. As the rubber joint has good comprehensive performance, it mainly acts as shock absorption, noise elimination and noise reduction. Therefore, it is widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industries, freezing, sanitation, plumbing, fire fighting, power and other infrastructure projects.
- How does the rubber part of the watch become yellow?
- Rubber: the word "rubber" comes from the Indian language "cau-uchu", meaning "weeping tree"". Natural rubber is flowing out from the Hevea latex when tapping after solidification and drying process. The finished product is material with elasticity, insulation, waterproof and air.
- How much is the recipe for Buddha's rubber?
- Rubber products were analyzed by infrared spectroscopy (FTIR), nuclear magnetic resonance (1H, NMR), mass spectrometry (MS), X diffraction analysis (XRD), ICP-MS, X fluorescence spectrometry, ion chromatography analysis, and other means. Through these testing methods can be a good solution for rubber products formulations, rubber products in the role of a detailed understanding of the more convenient for each enterprise research and development, grasp the market dynamics.
