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Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof

A reinforced composite material and PBT resin technology, applied in the field of composite flame-retardant reinforced materials, can solve the problems of metal corrosion, affecting the appearance and normal use of parts, and achieve excellent anti-tracking performance

Active Publication Date: 2014-12-24
JINAN TAIXING FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, phosphine has a corrosive effect on metals, and the release of phosphine will affect the appearance and normal use of parts.

Method used

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  • Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof
  • Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof
  • Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] ① Preheating: heat-treat PBT resin (1100-211M) at 125-130°C for 4 hours.

[0041] ② Weighing:

[0042] Weigh each component raw material by weight: PBT (1100-211M): 57.2, halogen-free flame retardant: 20, ethylene-butyl methacrylate-glycidyl acrylate copolymer: 1.5, hindered phenolic antioxidant 1010: 0.2, phosphite antioxidant 168: 0.1, calcium stearate: 0.5, nano magnesium hydroxide: 0.5.

[0043] Add 1,000 parts of water (the following are parts by weight), 220 parts of aluminum hypophosphite, and 130 parts of cyanuric acid to the reaction kettle in order, turn on steam heating, start stirring, and add 126 parts of melamine after the temperature of the system rises to 85-90°C . Maintain the system at a constant temperature of 95-105°C for reaction, and stop stirring after the reaction is complete. Cool down, settle, remove the supernatant, wash and dry to obtain the previous product. Add 21 parts of magnesium oxide to the previous product, and at the same time us...

Embodiment 2

[0047] ① Preheating: heat-treat PBT resin (1100-211M) at 120-125°C for 5 hours.

[0048] ② Weighing:

[0049] Weigh the raw materials of each component by weight: PBT (1100-211M): 49, halogen-free flame retardant: 18, glycidyl methacrylate grafted POE: 1.5, phenolic antioxidant 1010: 0.15, sub Phosphate antioxidant 168: 0.15, N,N-diethylbisstearamide: 0.5, nanometer calcium carbonate: 0.7.

[0050]Add 1,000 parts of water (the following are parts by weight), 220 parts of aluminum hypophosphite, and 130 parts of cyanuric acid to the reaction kettle in order, turn on steam heating, start stirring, and add 126 parts of melamine after the temperature of the system rises to 85-90°C . Maintain the system at a constant temperature of 95-105°C for reaction, and stop stirring after the reaction is complete. Cool down, settle, remove the supernatant, wash and dry to obtain the previous product. Add 21 parts of magnesium oxide to the previous product, and at the same time use 3.5 par...

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Abstract

The invention discloses a halogen-free and phosphorus-free PBT (polybutylece terephthalate) enhanced composite material and a preparation method thereof, and belongs to the technical field of composite flame-retardant enhanced materials. The halogen-free and phosphorus-free PBT enhanced composite material consists of the following components: 45-65 pats of PBT, 15-30 parts of glass fibers, 15-25 parts of a halogen-free flame retardant, 1-2 parts of a toughening agent, 0.1-0.2 part of a main antioxidant, 0.1-0.2 part of an auxiliary antioxidant, 0.1-1 part of a lubricating agent and 0.3-1.0 part of a nucleating agent. The preparation method comprises the steps of uniformly mixing PBT, the halogen-free flame retardant, the toughening agent, the main antioxidant, the auxiliary antioxidant, the lubricating agent and the nucleating agent according to the weight part to obtain a mixture, and performing melting, coblending and extruding granulation on the mixture and the glass fibers to obtain the halogen-free and phosphorus-free PBT enhanced composite material. The halogen-free and phosphorus-free PBT enhanced composite material prepared by the method is excellent in anti-separation performance, flame retardancy, mechanical property and creepage cracking resistance, does not release hydrogen phosphide poisonous gas and can totally meet a limiting requirement of Samsung on hydrogen phosphide emission concentration.

Description

technical field [0001] The invention relates to the technical field of composite flame-retardant reinforced materials, in particular to a halogen-free and phosphine-free PBT reinforced composite material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is an engineering plastic with excellent comprehensive properties, high temperature resistance, moisture resistance, oil resistance, and chemical corrosion resistance. It has a wide range of applications, but its notched impact strength is low and the molding shrinkage rate is large, so it is often modified by reinforcing filling, and glass fiber reinforcement is the most widely used. PBT is flammable, and the introduced glass fiber produces a "wick effect", which intensifies the flammability of PBT, so it should be modified in flame retardancy in application. [0003] At present, the halogen-free flame retardants used in PBT products mainly include red phosphorus (ordinary red ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K5/3492C08K3/22C08K7/14B29C47/92B29C48/92
Inventor 孙晓丽张旭岳爱东宋传君王林
Owner JINAN TAIXING FINE CHEM
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