Halogen-free warp-resistant PBT of excellent electrical properties and preparing technique thereof

A technology with high electrical performance and anti-warping, applied in the field of organic polymer composite materials, can solve problems such as complex structure design, achieve convenient production and procurement, increase anti-warping deformation and high electrical performance, and improve overall competitiveness

Inactive Publication Date: 2010-06-30
KECHUANG POLYMER SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, with the development of society and the rapid development of various technologies, the excellent electrical properties of PBT resin have been unable to meet product requirements in many fields, and more and more complex structural designs also require raw materials to have better dimensional stability and molding Processability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1, a halogen-free anti-warping deformation high electrical performance PBT raw material of the present invention is composed of the following components by weight ratio, PBT: 49.1%, SMA: 1.5%; halogen-free mica microchips: 30%; halogen-free Glass beads: 15%: toughening agent: 3%; coupling agent: 0.2%; other additives: 1.2%;

[0010] First dry the PBT, preheat the halogen-free mica microchips at 55 degrees, then weigh the dried PBT, SMA, halogen-free glass beads, toughening agent, coupling agent, and other additives in proportion Mix at medium and low speed in the mixer for 10 minutes. The mixer adopts low-speed mixing. The gap between the mixing blade and the cylinder wall should be less than 0.5 cm. The mixing effect of raw and auxiliary materials should be visually observed that the various particles and powders are basically uniform, and there are no obvious agglomerates or agglomerations; The screw extruder uses a 36 aspect ratio, medium strength shearing...

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PUM

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Abstract

The present invention relates to an organic polymer composite, particularly to a halogen-free warp-resistant polybutylece terephthalate (PBT) of excellent electrical properties and a preparing technique thereof. The PBT consists of the following constituents in a ratio by weight: 40 to 90% of PBT, 1 to 3% of stone mastic asphalt (SMA), 1 to 35% of micro halogen-free mica sheet, 1 to 30% of halogen-free glass microsphere, 1 to 5% of toughening agent, 0.1 to 0.4% of coupling agent and 0.1 to 5.5% of other auxiliaries. The halogen-free warp-resistant PBT of excellent electrical properties and the preparing technique have the advantages that warp-resistant properties and excellent electrical properties are increased on the basis of excellent comprehensive mechanical properties, and the PBT does not contain halogen. Production and procurement are convenient, and meanwhile, all the other environmental protection requirements are met. Thus, the comprehensive competitive power is improved.

Description

technical field [0001] The invention relates to an organic polymer composite material, in particular to a halogen-free, warping-resistant, high-electricity PBT and a preparation method thereof. Background technique [0002] PBT is one of the most widely used engineering plastics. It has good molding processability, fast crystallization speed, good surface gloss, stable size, low water absorption, excellent chemical resistance and oil resistance, especially Excellent arc resistance, which is inferior to other engineering plastics. These comprehensive characteristics make it widely used as structural parts in electrical, electronic, automotive, mechanical, instrumentation and other industries. However, with the development of society and the rapid development of various technologies, the excellent electrical properties of PBT resin have been unable to meet product requirements in many fields, and more and more complex structural designs also require raw materials to have bette...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L35/06C08K13/04C08K3/34C08K7/20
Inventor 孙平
Owner KECHUANG POLYMER SUZHOU
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