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Antistatic modified polyester and method for preparing same

A modified polyester and antistatic technology, applied in the field of modified polyester materials, can solve problems such as high surface resistance, poor hygroscopicity, explosion, etc., and achieve excellent mechanical properties, good thermal and temperature stability, and broad application prospects

Active Publication Date: 2010-06-23
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of its poor hygroscopicity, high surface resistance and serious static electricity, it affects the popularization and application of modified polyester.
Components or components produced by modified polyester used in electronic appliances and other industries are constantly rubbed or contacted with other surrounding materials during use, and the charge will continue to accumulate and increase, resulting in static electricity. If these charges are not eliminated, It may be very easy to absorb dust and dirt, affect the function of components or components, and seriously cause electrical fires, and may cause explosions and other disasters in mines or dusty production environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Antistatic flame retardant PBT (weight percent):

[0024] PBT resin: 64%, alkali-free glass fiber: 0%, antistatic agent: 7%, ethylene-butyl methacrylate-glycidyl acrylate terpolymer and ethylene-methyl acrylate binary copolymer 5%, Brominated epoxy resin: 18%, antimony white: 4%, composite antioxidant system composed of hindered phenolic antioxidant, phosphite antioxidant, organic sulfur antioxidant: 0.3%, coloring agent: 0.5%, Processing aids: 1.2%. The weight formula of the antistatic agent is 92% of sodium dodecyl sulfate, 6% of sodium sulfate, and 2% of paraffin.

Embodiment 2

[0026] Antistatic flame retardant glass fiber reinforced PBT (weight percent):

[0027] PBT resin: 57.5%, alkali-free glass fiber: 15%, antistatic agent: 5%; ethylene-butyl methacrylate-glycidyl acrylate terpolymer 3%, brominated polycarbonate: 15%, Antimony white: 2.5%, phosphite antioxidant: 0.5%, carbon black: 0.5%, processing aid: 1%. The weight formula of the antistatic agent is 96% of sodium dodecyl sulfate and 4% of sodium sulfate.

Embodiment 3

[0029] Antistatic flame retardant glass fiber reinforced PBT (weight percent):

[0030] PBT resin: 25.6%; E-glass fiber: 50%; antistatic agent: 3%; brominated epoxy resin: 12%, antimony white: 3%, phenolic antioxidant and phosphite antioxidant: 0.4 %; ethylene-methyl acrylate binary copolymer and ethylene-vinyl acetate copolymer binary copolymer: 4.6%; iron red: 0.4%; processing aids: 1%. The weight formula of the antistatic agent is 90% of sodium dodecyl sulfate, 8% of sodium sulfate, and 2% of paraffin.

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PUM

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Abstract

The invention discloses antistatic modified polyester and a method for preparing the same. The antistatic modified polyester comprises the following components by weight percent: 30-70 percent of polyester resin, 0-50 percent of alkali-free glass fibre, 8-20 percent of brominated flame retardant, 1-5 percent of antimony trioxide, 1-8 percent of antistatic agent, 0-10 percent of toughening agent, 0.1-0.5 percent of antioxidant, 0-5 percent of coloring agent and 0.5-1 percent of processing auxiliary. The antistatic modified polyester has good thermal stability, excellent mechanical performance, can be made into a variety of colors and has broad application prospect.

Description

technical field [0001] The invention relates to the field of modified polyester materials, in particular to an antistatic modified polyester and its preparation technology. Background technique [0002] In recent years, thermoplastic polyesters, especially polybutylene terephthalate (PBT), polyethylene terephthalate (PET), etc., are in increasing demand in electronic appliances and various industrial fields. Performance characteristics include: fast crystallization speed, high-speed molding, weather resistance, chemical resistance, excellent friction and wear properties, low water absorption, high heat distortion temperature, high mechanical strength, good fatigue resistance and dimensional stability, creep Also smaller. However, because of its poor hygroscopicity, high surface resistance, and serious static electricity, it affects the popularization and application of modified polyester. Components or components produced by modified polyester used in electronic appliances...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/02C08K5/42C08K3/30C08L91/08C08K13/04B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/04B29C48/40
Inventor 朱文梁惠强姜苏俊陈大华
Owner KINGFA SCI & TECH CO LTD
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