Conductive PBT composite material

A composite material and conductive masterbatch technology, applied in the field of polymer materials, can solve the problems that the electrical conductivity is not well improved, the mechanical properties of the polymer are damaged greatly, and the surface resistivity of the PBT product is high, so as to improve the resistance to UV aging performance and anti-oxidation performance, improving compatibility and mechanical properties, reducing the effect of surface resistivity

Inactive Publication Date: 2013-07-31
SUZHOU SUNWAY POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface resistivity of PBT products is high, and it is easy to generate electrostatic aggregation effect during use, which limits its scope of application.
In the prior art, the conductive carbon black filler is generally directly added to the polymer by compound blending to improve the conductivity of the polymer, but the conductive carbon black filler is unevenly dispersed in the matrix, and the conductivity cannot be obtained. Very good improvement, and greater damage to the mechanical properties of the matrix polymer

Method used

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  • Conductive PBT composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Combine 80 parts of polyethylene terephthalate, 15 parts of conductive masterbatch, 1 part of toughening agent ethylene-butyl acrylate copolymer, 1 part of light shielding agent zinc oxide and antioxidant four (β-(3,5) -Di-tert-butyl-4-hydroxyphenyl)propionic acid) pentaerythritol ester 0.2 part mixed in advance at high speed, and then extruded through a parallel twin-screw mixing extruder, cooled and granulated.

Embodiment 2

[0021] Combine 80 parts of polyethylene terephthalate, 16 parts of conductive masterbatch, 2 parts of toughening agent ethylene-methyl acrylate-glycidyl methacrylate copolymer, 2 parts of light shielding agent zinc oxide and antioxidant β -(4-Hydroxyphenyl-3,5-di-tert-butyl) n-octadecyl propionate 0.4 parts are mixed in advance at high speed, and then extruded through a parallel twin-screw mixing extruder and cooled to produce grain.

Embodiment 3

[0023] Combine 90 parts of polyethylene terephthalate, 18 parts of conductive masterbatch, 4 parts of toughening agent ethylene-acrylate-maleic anhydride copolymer, 1 part of light shielding agent titanium dioxide and antioxidant 2,6-di-tert 0.6 parts of butyl p-cresol are mixed in advance at high speed, and then extruded through a parallel twin-screw mixing extruder, cooled and pelletized.

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Abstract

The invention relates to the field of polymer materials, and particularly relates to a conductive PBT composite material. The PBT composite material is composed of, by weight, 80-100 parts of polyethylene terephthalate, 15-20 parts of conductive masterbatch, 1-5 parts of a toughening agent, 1-2 parts of a light shielding agent and 0.2-0.8 part of an antioxidant, wherein the conductive masterbatch is composed of 68% of graphene, 22% of a dispersant and 10% of a coupling agent. The conductive masterbatch is used as a conductive additive. The addition of the conductive masterbatch increases the addition amount of the graphene, thereby effectively reducing surface resistivity of a PBT matrix; and the addition of other auxiliary agents increase comprehensive performance of the composite material.

Description

Technical field [0001] The invention relates to the field of polymer materials, in particular to a conductive PBT composite material. Background technique [0002] Polyethylene terephthalate (PBT) has high hardness, high strength, high crystallization speed and excellent chemical resistance. It is an important thermoplastic engineering plastic, mainly used in automobiles, electronic appliances, mechanical parts, Clothing and other aspects. However, the surface resistivity of PBT products is high, and it is easy to produce electrostatic accumulation effect during use, which limits its scope of application. In the prior art, the conductive carbon black filler is generally directly added to the polymer by a composite blending method to improve the conductivity of the polymer, but the conductive carbon black filler is unevenly dispersed in the matrix, and the conductivity is not obtained. It is a very good improvement, and the mechanical properties of the matrix polymer are greatly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08K3/04C08K3/22C08J3/22
Inventor 任俊
Owner SUZHOU SUNWAY POLYMER
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