Singapore Polyolefin KA-31 EVA Raw Material Wire And Cable Eva Copolymer Resin

EVA Singapore polyolefin KA-31 High strength for wire and cable grades

EVA is composed of ethylene and vinyl acetate copolymerization, VA content affects the performance, this is very important, the higher the VA content, the better the elasticity, but the lower the crystallinity. The effects of different VA levels may need to be detailed.

Then there is chemical resistance, the user may want to know EVA's resistance to acids, bases, solvents. For example, in acid-base stability, ester bonds may be susceptible to hydrolysis, especially under acidic or alkaline conditions. In terms of solvents, how soluble EVA is in non-polar solvents, such as toluene and xylene, may be related to the processing or use environment.

In terms of thermal stability, the decomposition temperature is about 230-250°C, and the processing temperature range is 120-200°C, which affects the processing method and the application temperature range. Possible oxidation problems at high temperatures and the need to add stabilizers need to be mentioned.

In terms of polarity, due to the presence of acetic acid groups, EVA has high polarity, compatibility with other materials, such as the blending of PE and PVC, and bonding properties, which is very important for adhesive applications.

Optical lighting

It used to manufacture large lampshade, protective glass, left and right eyepiece tubes of Optical instrument, etc., and can also be widely used as transparent materials on aircraft.

Electronic appliances

It used in the manufacturing of insulation connectors, coil frames, sockets, insulation sleeves, telephone shells and parts, and battery shells for mining lamps, and so on.

Mechanical equipment

It used for manufacturing various gears, racks, worm gears, worms, bearings, cams, bolts, levers, crankshafts, ratchets, and can also be used as mechanical components such as shields