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Flame-retardant PVC plastic

A technology of flame retardant plastics and inorganic flame retardants, applied in the field of PVC flame retardant plastics, can solve the problems of easy aging, poor flame retardancy, poor thermal stability, etc., and achieve low cost, long service life, and excellent mechanical properties Effect

Inactive Publication Date: 2017-11-24
周小红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are poor thermal stability, easy aging under the action of light, heat and oxygen, and poor flame retardancy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] PVC flame retardant plastic raw materials (parts by weight): 100 parts of polyvinyl chloride resin, 1.5 parts of triphenyl phosphite, 12 parts of chlorinated polyethylene, 5 parts of calcium carbonate, 1.5 parts of zinc stearate, 1.5 parts of chlorinated paraffin, 1.5 parts of inorganic flame retardant, 0.06 part of anti-aging agent.

[0027] The inorganic flame retardant is uniformly obtained by stirring and mixing sodium antimonate, zinc borate and zinc molybdate in a mass ratio of 1:1:1.

[0028] Said anti-aging agent is composed of 2,6-di-tert-butyl-p-(dimethylaminomethyl)phenol, 2,4-bis(1,1-dimethylethyl)-5-methylphenol, thiodipropylene The acid didodecyl ester is obtained by stirring and mixing at a mass ratio of 1:1:1.

[0029] Preparation of PVC flame retardant plastic:

[0030] (1) Put the polyvinyl chloride resin and chlorinated polyethylene into the mixer, stir at a speed of 600 rpm for 3 hours, then reduce the speed to 70 rpm, and then add triphenyl phosph...

Embodiment 2

[0033] It is basically the same as Example 1, except that the inorganic flame retardant is obtained by stirring and mixing zinc borate and zinc molybdate at a mass ratio of 1:1. The PVC flame retardant plastic of Example 2 was obtained.

Embodiment 3

[0035] It is basically the same as Example 1, except that the inorganic flame retardant is obtained by stirring and mixing sodium antimonate and zinc molybdate in a mass ratio of 1:1. The PVC flame retardant plastic of Example 3 was obtained.

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PUM

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Abstract

The invention discloses a flame-retardant PVC plastic which is prepared from the following raw materials in parts by weight: 90-110 parts of PVC resin, 1-2 parts of triphenyl phosphite, 10-15 parts of chlorinated polyethylene, 3-6 parts of calcium carbonate, 1-3 parts of zinc stearate, 1-3 parts of chlorinated paraffin, 1-3 parts of an inorganic flame retardant agent and 0.01-0.1 parts of an anti-aging agent. The flame-retardant PVC plastic provided by the invention has the advantages of simple and stable construction process, low cost, excellent mechanical performance, flame retardancy and antibacterial property, high aging resistance and high temperature resistance, and long service life.

Description

technical field [0001] The invention relates to a PVC plastic, in particular to a PVC flame retardant plastic. Background technique [0002] Polyvinyl chloride (PVC for short) resin is a thermoplastic polymer compound polymerized from vinyl chloride (VinylChloride, referred to as VC) monomer. PVC is a white powder with amorphous structure, which is non-toxic, odorless, and has a small degree of molecular chain branching. Excellent physical properties, high chemical stability, good processability and plasticity. The preparation method of polyvinyl chloride is to combine acetylene (CH≡CH) with hydrogen chloride (HCl) or chlorine (Cl 2 ) reacts to produce vinyl chloride (CH 2 =CHCl) monomer, and then the polymerization reaction occurs to generate polyvinyl chloride. Free radicals bring vinyl chloride monomers together to form polyvinyl chloride resin. [0003] Polyvinyl chloride resin is a multi-component plastic. Different additives can be added according to different use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L91/06C08K13/02C08K5/526C08K3/26C08K5/098C08K3/24C08K3/38C08K5/13C08K5/372
CPCC08L27/06C08K2003/265C08K2003/387C08K2201/014C08L2201/02C08L2201/08C08L2205/03C08L23/286C08L91/06C08K13/02C08K5/526C08K3/26C08K5/098C08K3/24C08K3/38C08K5/13C08K5/372
Inventor 周小红
Owner 周小红