PVC and rubber are the most commonly used materials for waterproof connector wires, and their price has certain differences with quality, how should we choose.
Rubber is a highly elastic polymer material having reversible variable. Elasticity is flexible at room temperature, which can produce a large deformation under small external force, and can restore the original. Rubber belongs to a complete amorphous polymer,
The primary version of PVC is polyvinyl chloride, a vinyl chloride monomer, a referred to as VCM) at the peroxide, azo compound, or the like; or polymerized polymerization of radical polymerization reaction mechanism under light, thermal action .
2. Different from classification
Rubber is divided into natural rubber and synthetic rubber according to feedstock. Rubber: Divided into block raw gelatin, latex, liquid rubber and powder rubber according to form.
PVC is based on the universal PVC resin, high polymerization PVC resin, cross-linking PVC resin; polyvinyl chloride can be divided into four categories: suspension polyvinyl chloride, emulsion polyvinyl chloride, body PVC, solution method is polyvinyl chloride; according to the plasticizer content, PVC is divided into: no plasticizer, the plasticizer content is 0; the hard PVC, the plasticizer content is less than 10%
3. Preparation method
In order to add various desired complex to rubber, rubber first needs to be plasticized to improve its plasticity; then mix the carbon black and various rubber aids and rubber evenly mixed into a rubber; the rubber is passed A certain shape blank is pressed; then it is combined with a textile material (or a metal material) elapsed by a crimping or rubber or rubberized. Finally, it is finally produced by vulcanization and a highly elastic ultimate product. product.
Polyvinyl chloride can be prepared from ethylene, chlorine and catalysts.
Post time: Mar-13-2023