Environment-friendly low-smoke fire-resistant PVC (Polyvinyl Chloride) material, and preparation method and application thereof

A PVC material, low-smoke and flame-retardant technology, applied in the direction of plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problems of poor thermal stability and environmental damage, achieve excellent temperature and weather resistance, and low production costs , low cost effect

Inactive Publication Date: 2017-09-29
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the thermal stability of PVC is very poor, the softening point temperature is between 75°C and 85°C, the glass transition temperature is around 80°C, it starts to decompose above 100°C, quickly decomposes above 180°C, and quickly decomposes and turns black above 200°C , PVC can burn on the flame, and degrade to release low molecular compounds such as HCl, CO and benzene, so that when the PVC material burns in a fire, it not only generates a certain amount of heat, but more seriously, it produces a large amount of black smoke and corrosive gas, which seriously endangers It affects the safety of people's lives and properties, and destroys the environment on which people live.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] An environmentally friendly low-smoke flame-retardant PVC material, comprising the following raw materials in parts by weight:

[0053] PVC resin 20 parts

[0054] 40 parts plasticizer

[0055] Environmental protection flame retardant 10 parts

[0056] Smoke suppressant 5 parts

[0057] 1 heat stabilizer

[0058] 0.5 parts of compatibilizer

[0059] Antioxidant 0.02 parts.

[0060] The PVC resin is an ethylene-based PVC resin with an average degree of polymerization of 1000.

[0061] Described plasticizer is epoxidized soybean oil.

[0062] The environmentally friendly flame retardant is triphenyl phosphate, o-diphenylisooctyl or diphenylisodecyl phosphate.

[0063] The smoke suppressant is a molybdenum compound.

[0064] The heat stabilizer is a mixture of calcium stearate and zinc stearate in a weight ratio of 0.8:1.

[0065] The compatibilizer is maleic anhydride grafted polyvinyl chloride, maleic anhydride grafted EPDM rubber, poly(styrene-acrylonitrile)-po...

Embodiment 2

[0073] An environmentally friendly low-smoke flame-retardant PVC material, comprising the following raw materials in parts by weight:

[0074] 35 parts of PVC resin

[0075] Plasticizer 50 parts

[0076] Environmental protection flame retardant 15 parts

[0077] Smoke suppressant 15 parts

[0078] 2 parts heat stabilizer

[0079] Compatibilizer 2 parts

[0080] Antioxidant 0.04 part.

[0081] The PVC resin is an ethylene-based PVC resin with an average degree of polymerization of 1200.

[0082] The plasticizer is a synthetic vegetable ester.

[0083] The environment-friendly flame retardant is chlorinated paraffin-52, chlorinated paraffin-70 or chlorinated paraffin-42.

[0084] The smoke suppressant is an iron compound.

[0085] The heat stabilizer is a mixture of calcium stearate and zinc stearate in a weight ratio of 0.9:1.

[0086] The compatibilizer is maleic anhydride grafted EPDM rubber.

[0087] The antioxidant is N,N'-bis[[3-(3,5)-di-tert-butyl-4-hydroxypheny...

Embodiment 3

[0094] An environmentally friendly low-smoke flame-retardant PVC material, comprising the following raw materials in parts by weight:

[0095] PVC resin 50 parts

[0096] 60 parts plasticizer

[0097] Environmental protection flame retardant 30 parts

[0098] Smoke suppressant 30 parts

[0099] 3 parts heat stabilizer

[0100] Compatibilizer 3 parts

[0101] Antioxidant 0.06 part.

[0102] The PVC resin is an ethylene-based PVC resin with an average degree of polymerization of 1500.

[0103] Described plasticizer is tributyl citrate.

[0104] The environmentally friendly flame retardant is bis(hexachlorocyclopentadiene) cyclooctane.

[0105] The smoke suppressant is a metal oxide.

[0106] The thermal stabilizer is a mixture of calcium stearate and zinc stearate at a weight ratio of 1:1.

[0107] The compatibilizer is poly(styrene-acrylonitrile)-polyvinyl chloride block copolymer.

[0108] The antioxidant is tris[2,4-di-tert-butylphenyl]phosphite.

[0109] A prepara...

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Abstract

The invention relates to the technical field of PVC (Polyvinyl Chloride) materials, and concretely relates to an environment-friendly low-smoke fire-resistant PVC (Polyvinyl Chloride) material, and a preparation method and application thereof. The environment-friendly low-smoke fire-resistant PVC material is prepared from the following raw materials in parts by weight: 20 to 80 parts of PVC resin, 40 to 80 parts of plasticizer, 10 to 30 parts of environment-friendly fire-resistant agent, 5 to 30 parts of smoke suppressor, 1 to 5 parts of heat stabilizer, 0.5 to 5 parts of compatilizer, and 0.02 to 0.1 part of antioxygen. According to the PVC material provided by the invention, through adopting the raw materials and strictly controlling the weight proportion of the raw materials, the prepared PVC material has the advantages of excellent fire resistant effect, low smoke density, excellent temperature resistance and weather fastness, high strength, excellent shock resistance and excellent combination property.

Description

technical field [0001] The invention relates to the technical field of PVC materials, in particular to an environment-friendly low-smoke flame-retardant PVC material and a preparation method and application thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardancy, corrosion resistance, excellent comprehensive performance, low price and wide source of raw materials; people often The performance of PVC is improved by adding fillers, elastomers, plasticizers, heat stabilizers, processing aids, heat-resistant modifiers and flow modifiers. [0003] PVC resin itself has high flame retardancy, and the oxygen index of pure PVC resin reaches 24.5, which can be considered as a material with excellent flame retardancy. But the thermal stability of PVC is very poor, the softening point temperature is between 75°C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08L51/00C08L51/04C08L53/00C08L23/28C08K13/02C08K5/098B29B7/00H01B3/44
CPCC08L27/06B29B7/002C08L2201/02C08L2201/08C08L2203/202C08L2205/03C08L2205/035H01B3/443C08L91/00C08L51/003C08L51/04C08L53/00C08L23/286C08K13/02C08K5/098
Inventor 苏俐娇刘方达钟荣栋李同兵
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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