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A conductive and flame-resistant PVC composition and its preparation method

A composition and technology of PVC resin, applied in the field of conductive and flame retardant PVC composition and preparation thereof, can solve the problems of reduced mechanical properties, etc., and achieve excellent flame resistance, good mechanical and electrical properties, and high flame retardant properties Effect

Active Publication Date: 2019-10-29
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the above-mentioned deficiencies of the prior art, a conductive flame-resistant PVC composition and a preparation method thereof are provided. The conductive flame-resistant PVC composition has good electrical conductivity and mechanical properties, and solves the problem of The problem of the reduction of mechanical properties caused by adding a large amount of conductive carbon black filler

Method used

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Examples

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Embodiment 1

[0023] Examples 1-10 are specific implementations of a conductive flame-retardant PVC composition and preparation method of the present invention. Among them, Example 1 is the best example.

[0024] Table 1 The ratio of Examples 1 to 6 (in parts by weight)

[0025] .

[0026] Table 2 The proportions of Examples 7-10 and Comparative Examples 1-2 (in parts by weight)

[0027] .

[0028] The flame retardant modifier in Table 1~2 is a mixture of phosphate ester and antimony trioxide at a mass ratio of 2:1. The conductive carbon black used in Comparative Examples 1 to 2 is carbon black without any surface treatment, which is a commercially available product. The preparation method of the conductive carbon black treated with acrylate monomers used in Examples 1 to 10 is as follows: according to the mass ratio of n-butyl acrylate and absolute ethanol 1:1, dilute n-butyl acrylate with absolute ethanol to obtain Diluent: According to the mass ratio of n-butyl acrylate and conductive carbon...

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Abstract

The invention discloses a conductive and flame-retardant PVC composition and a preparation method thereof, and belongs to the technical field of processing and application of polymer materials. The composition comprises, by weight, 100 parts of PVC resin, 1-10 parts of MBS resin, 3-15 parts of a processing modifier, 8-15 parts of conductive carbon black processed with an acrylate monomer, 4-6 parts of a calcium-zinc stabilizer, 1-6 parts of a thermoreversible crosslinker, 1-3 parts of an assistant crosslinker, 5-10 parts of a flame retardation modifier and 1-4 parts of a lubricant. A preparation method of the conductive carbon black processed with the acrylate monomer comprises the following steps: adding a solvent to dilute the acrylate monomer, uniformly mixing the diluted acrylate monomer with conductive carbon black, and volatilizing the solvent to obtain the conductive carbon black processed with the acrylate monomer, wherein a mass ratio of the acrylate monomer to the conductivecarbon black is (1-2):10. The conductive and flame-retardant PVC composition has good conductive performances and mechanical performances, and solves the problem of reduction of mechanical performances, caused by addition of a lot of a conductive carbon black filler.

Description

Technical field [0001] The invention belongs to the technical field of processing and application of polymer materials, and specifically relates to a conductive flame-retardant PVC composition and a preparation method thereof. Background technique [0002] In recent years, conductive plastic pipes have developed rapidly, among which double-resistant pipes used in coal mines account for a large proportion. Coal mine pipes have extremely high requirements for materials, requiring material resistance to be less than 1×10 6 Ω, flame retardant meets the requirements of the MT-181 standard of the Ministry of Coal Industry "Specifications for the Safety Performance Inspection of Plastic Pipes Used in Coal Mines" In order to meet the standard requirements, it is necessary to add a large amount of conductive carbon black and flame retardant, but the addition of a large amount of fillers greatly reduces the impact toughness of the modified plastic system. The conductive carbon black is eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L51/04C08L91/06C08L23/06C08K13/06C08K9/10C08K3/04C08K5/3492C08K5/521C08K3/22B29C48/92
Inventor 刘容德王晶张新华李静刘浩张桦桂俊杰王晓敏高磊盛梅
Owner CHINA PETROLEUM & CHEM CORP
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