What is the difference between rubber material and pvc material

1. Different ingredients

A.Rubber material: Natural rubber is made of latex, and part of the non-rubber components contained in the latex remain in the solid natural rubber. Generally, natural rubber contains 92%-95% of rubber hydrocarbons, while non-rubber hydrocarbons account for 5%-8%. Due to different production methods, different production areas and even different rubber picking seasons, the proportions of these components may be different, but they are basically within the range.

B. PVC material: polyvinyl chloride, referred to as PVC (Polyvinyl chloride) in English, is an initiator of vinyl chloride monomer (VCM) in peroxides, azo compounds, etc.; or press under the action of light and heat. A polymer formed by a free radical polymerization mechanism. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.

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2. Different uses

A.Rubber material: not only provide people with daily necessities, medical and other light industrial rubber products, but also provide various rubber production equipment or rubber products for mining, transportation, construction, machinery, electronics and other heavy industries and emerging industries part. It can be seen that the rubber industry has a wide variety of products, and the backward industry is very broad.

B.PVC material: PVC was once the largest general-purpose plastic in the world, and was widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foam materials, sealing materials, fibers, etc.

3. Different chemical structures

A.Rubber material: Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under the action of a small external force, and can return to its original shape after removing the external force. Rubber is a completely amorphous polymer, its glass transition temperature (T g) is low, and its molecular weight is often large, greater than several hundred thousand.

B.PVC material: white powder with amorphous structure, small degree of branching, relative density of about 1.4, glass transition temperature of 77~90 °C, decomposition at about 170 °C [, poor stability to light and heat, above 100 °C Or after prolonged exposure to sunlight, it will decompose to produce hydrogen chloride.