A kind of ultra-high Vicat PVC modified colloidal particles

Abstract

The invention belongs to the technical field of plastic rubber particles and in particular relates to ultrahigh-Vicat PVC (Polyvinyl Chloride) modified rubber particles. The ultrahigh-Vicat PVC modified rubber particles are prepared from the following components in parts by mass: 100 parts of PVC, 95 to 105 parts of CPVC (Chlorinated Polyvinyl Chloride), 4 to 6 parts of toxin-free stabilizing agent, 10 to 15 parts of ethylene propylene rubber, 70 to 120 parts of polyethylene glycol, 3 to 7 parts of plasticizer, 1 to 3 parts of coloring agent and 3 to 8 parts of antioxidant; the ultrahigh-VicatPVC modified rubber particles are prepared through the following steps: step 1, weighing raw materials according to the components; then adding the PVC and the CPVC into polyethylene glycol in sequence and carrying out constant-temperature and continuous stirring to obtain a suspended dispersion solution; step 2, adding the ethylene propylene rubber into the suspended dispersion solution and mechanically stirring until the ethylene propylene rubber is completely dispersed, so as to obtain a viscous mixed solution; step 3, adding the plasticizer, the coloring agent, the antioxidant and the toxin-free stabilizing agent into a mixed reaction solution and stirring at constant temperature; then cooling and stirring at low temperature until the solution reaches the room temperature and filtering to obtain mixed powder; step 4, putting the mixed powder into a PVC tapered double-screw extrusion granulating machine and granulating; cooling hotly particle materials to be lower than 40 DEG C, soas to obtain the ultrahigh-Vicat PVC modified rubber particles.

Description

technical field [0001] The invention belongs to the technical field of plastic granules, and in particular relates to a super-high-vicat PVC modified granule. Background technique [0002] PVC, also known as polyvinyl chloride, is a polymer formed by the polymerization of vinyl chloride monomers in peroxides, azo compounds and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC used to be the world's largest general-purpose plastic with a wide range of applications. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers, etc. [0003] PVC is a white powder with an amorphous structure, a small degree of branching, a relative densit...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems in the prior art, the present invention provides an ultra-high Vicat PVC modified compound, which solves the problem of the low Vicat softening temperature of PVC in the prior art, and uses the characteristics of CPVC itself to form a mixed modification with PVC , greatly improving the performance of PVC Vicat

Images