nitrile rubber
It is polymerized from acrylonitrile and butadiene, and the general temperature range is -25~ 100℃. It has good oil resistance, water resistance, solvent resistance and high-pressure oil resistance, and has good compressibility, wear resistance and elongation.
Disadvantages: Not suitable for polar solvents, such as ketones, ozone, nitrohydrocarbons, methyl ethyl ketone and chloroform.
natural rubber
It is made of latex collected from rubber trees and is a polymer of isoprene. It has good wear resistance, high elasticity, breaking strength and elongation. Advantages: good elasticity, acid and alkali resistance.
Disadvantages: weatherproof and oil-resistant (vegetable oil-resistant) are raw materials for making adhesive tapes, rubber hoses and rubber shoes, and are suitable for making shock-absorbing parts and products used in hydroxyl-containing liquids such as automobile brake oil and ethanol.
It is polymerized from chlorobutene monomer. Vulcanized rubber has good elasticity and wear resistance, not afraid of direct sunlight, especially good weather resistance and strong distortion, refrigerant, dilute acid and silicone ester lubricating oil, but not phosphate ester hydraulic oil. It is easy to crystallize and harden at low temperature and has poor storage stability. It has great expansion in mineral oil with low aniline point. The general temperature range is -50~ 150℃. Advantages: good elasticity, good compression deformability, sulfur-free formula and easy manufacture. It has the characteristics of animal and vegetable oil resistance and will not be affected by neutral chemicals, fats, oils and solvents. It has flame retardant properties and is suitable for manufacturing various parts that are in direct contact with the atmosphere, sunlight and ozone.