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Flame-retardant reinforced polybutylene terephthalate compound and production method thereof

A technology of polybutylene terephthalate and composites, which is applied in the field of flame-retardant reinforced polybutylene terephthalate composites, can solve the problems of slow crystallization rate and difficult molding and processing, and achieve low cost , The effect of simple preparation process

Inactive Publication Date: 2008-07-23
南通市旺茂实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the alloys of PBT resin and other polyesters have many new features, due to the slow crystallization rate of other polyesters (PET, PTT), there are certain difficulties in molding and processing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The weight ratio of PBT is 44.6%, PTT11.12%, decabromodiphenyl ether 8.2%, antimony trioxide 2.8%, PT862 2.2%, polytetrafluoroethylene 0.18%, antioxidant IR1010 0.15%, antioxidant IR168 Mix 0.15% and Surlyn8920 0.6% in a high-speed mixer at room temperature for 0.5-2 minutes, feed into the twin-screw extruder through the hopper, blend with glass fiber (30% by weight) after melting, extrude, and cool , granulation, drying and packaging. Among them, the processing temperature of each zone of the twin-screw is respectively: zone 1 210-225℃, zone 2 210-225℃, zone 3 210-225℃, zone 4 210-225℃, zone 5 210-225℃, zone 6 210-225℃ , Seventh zone 205-220°C, eighth zone 205-220°C, head 205-220°C, residence time 20-50s, screw speed 380-450r / min.

Embodiment 2

[0042] The weight ratio of PBT is 44.22%, PTT11.1%, decabromodiphenyl ether 8.1%, antimony trioxide 2.7%, PT862 2.2%, polytetrafluoroethylene 0.18%, antioxidant IR 1010 0.15%, antioxidant IR 168 0.15% and Surlyn8920 1.2% were mixed in a high-speed mixer at room temperature for 0.5-2 minutes, fed into a twin-screw extruder through a lower hopper, blended with glass fibers (30% by weight) after melting, and extruded , cooling, granulation, drying and packaging. Among them, the processing temperature of each zone of the twin-screw is respectively: zone 1 210-225℃, zone 2 210-225℃, zone 3 210-225℃, zone 4 210-225℃, zone 5 210-225℃, zone 6 210-225℃ , Seventh zone 205-220°C, eighth zone 205-220°C, head 205-220°C, residence time 20-50s, screw speed 380-450r / min.

Embodiment 3

[0044]The weight ratio of PBT is 44.62%, PTT11.1%, decabromodiphenylethane 8.2%, antimony trioxide 2.8%, PT862 2.2%, polytetrafluoroethylene 0.18%, antioxidant IR 10100.15%, antioxidant IR 168 0.15% and Surlyn8920 0.6% were mixed in a high-speed mixer at room temperature for 0.5-2 minutes, fed into a twin-screw extruder through a lower hopper, blended with glass fibers (30% by weight) after melting, and extruded , cooling, granulation, drying and packaging. Among them, the processing temperature of each zone of the twin-screw is respectively: zone 1 210-225℃, zone 2 210-225℃, zone 3 210-225℃, zone 4 210-225℃, zone 5 210-225℃, zone 6 210-225℃ , Seventh zone 205-220°C, eighth zone 205-220°C, head 205-220°C, residence time 20-50s, screw speed 380-450r / min.

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Abstract

The invention discloses a flame retardant reinforced polybutylene terephthalate (PBT) composite and a production method of the composite. The flame retardant reinforced PBT composite is prepared by PBT, other polyesters, fiberglass, bromide, antimony trioxide, toughening, a compatibilizer, an antioxidant, an anti-dripping agent and a nucleating agent. The flame retardant reinforced polybutylene terephthalate (PBT) composite has the advantages that: other polyester materials (PTT) are added into the flame retardant reinforced PBT composite, the comprehensive mechanical property of the composite is enhanced, such as the tensile strength and the bending strength, and a plurality of new characters are given to the composite, meanwhile, compared with the pure PBT resin as reinforced flame retardant material, the composite has higher heat distortion temperature; furthermore, the preparation technique has simple process and low cost.

Description

Technical field: [0001] The invention relates to a flame-retardant reinforced polybutylene terephthalate compound and a production method. Background technique: [0002] In order to broaden its use, PBT resin, like other resins, must be modified before being used. The modification of PBT resin is basically achieved by means of blending modification, that is, by adding glass fiber, flame retardant, antioxidant and other additives, melting, extruding and granulating in a twin-screw extruder. be made of. The modified PBT resin (called flame-retardant enhanced PBT) has excellent flame retardancy, heat resistance, electrical insulation and molding processability, and is widely used in electronics, electrical industries, auto parts industries, manufacturing industries, etc. , is an ideal material for manufacturing such as electronic connectors, connectors, transformer skeletons, tube sockets, electric iron shells, energy-saving lamp caps, motor covers, etc. [0003] The entire ...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08J5/04C08K7/14C08K3/22C08K5/06C08L51/06
Inventor 陈晰周传敏陈建新陈夕新
Owner 南通市旺茂实业有限公司
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