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Lightweight denoising polyethylene terephthalate material and preparation method thereof

A technology for polybutylene terephthalate and noise reduction, which is applied in the field of lightweight noise-reduction polybutylene terephthalate material and its preparation, and can solve problems such as high density

Active Publication Date: 2015-06-10
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PBT itself has high density, and the density is higher after adding glass fiber

Method used

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  • Lightweight denoising polyethylene terephthalate material and preparation method thereof
  • Lightweight denoising polyethylene terephthalate material and preparation method thereof
  • Lightweight denoising polyethylene terephthalate material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] (1) Prepare raw materials according to the following components and parts by weight: 70 parts of polybutylene terephthalate, glass microspheres (density 0.3g / cm 3 ) 20 parts, glass fiber (5μm in diameter) 10 parts, silicone 0.5 part, 0.2 part antioxidant 1790 and 0.3 part antioxidant DLTDP compounding agent, 0.5 part coupling agent KH550;

[0023] (2) Control the speed of the high mixer to 700rmp, the temperature to 30°C, mix for 15 minutes, mix the above raw materials at high speed through the high mixer, then control the temperature of the extruder to 295-310°C, and extrude the mixture through twin-screw The product can be obtained by pulling strands out of the machine and cutting into pellets.

Embodiment 2

[0025] (1) Prepare raw materials according to the following components and parts by weight: 60 parts of polybutylene terephthalate, glass microspheres (density 0.6g / cm 3 ) 10 parts, 30 parts of glass fiber (20 μm in diameter), 0.2 parts of PPA, 0.2 parts of antioxidant 1790 and 0.3 parts of antioxidant DLTDP compounding agent, 0.5 parts of coupling agent KH550;

[0026] (2) Control the speed of the high mixer to 500rmp, the temperature to 60°C, mix for 5 minutes, mix the above raw materials through the high mixer at high speed, then control the temperature of the extruder to 275-300°C, and extrude the mixture through twin-screw The product can be obtained by pulling strands out of the machine and cutting into pellets.

Embodiment 3

[0028] (1) Prepare raw materials according to the following components and parts by weight: 70 parts of polybutylene terephthalate, glass microspheres (density 0.4g / cm 3 ), 15 parts of glass fiber (7 μm in diameter), 0.3 part of zinc stearate, 0.1 part of compounding agent of antioxidant 1098 and 0.4 part of antioxidant 626, 0.8 part of coupling agent KH550;

[0029] (2) Control the speed of the high mixer to 500rmp, the temperature to 40°C, mix for 10 minutes, mix the above raw materials through the high mixer at high speed, then control the temperature of the extruder to 285-310°C, and extrude the mixture through twin-screw The product can be obtained by pulling strands out of the machine and cutting into pellets.

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Abstract

The invention discloses a lightweight denoising polybutylene terephthalate material. The material is prepared from the following components by weight: 60 to 70 parts of polybutylene terephthalate, 10 to 20 parts of glass beads, 10 to 30 parts of glass fibers, 0.2 to 0.5 part of a lubricant, 0.5 to 0.8 part of an antioxidant and 0.5 to 0.9 part of a coupling agent. The preparation method comprises the following steps: subjecting 60 to 70 parts of the polybutylene terephthalate, 10 to 20 parts of the glass beads, 10 to 30 parts of the glass fibers, 0.2 to 0.5 part of the lubricant, 0.5 to 0.8 part of the antioxidant and 0.5 to 0.9 part of the coupling agent to uniform mixing at a high speed via a high-speed mixer; then pouring the mixed materials into a screw extruder; and carrying out stranding pelletizing via the screw extruder so as to obtain the lightweight denoising polybutylene terephthalate material. According to the invention, since the glass beads are added in formulation of the material, mechanical properties of the material are improved while low density of the material is kept; meanwhile, due to the special structure of the hollow particles of the glass beads, the material has a certain denoising function, and thus, the material has high application values in vibration reduction, denoising and cost reduction in the fields like automobiles, airplanes and electronic components.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a lightweight noise-reducing polybutylene terephthalate material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a special engineering plastic with excellent comprehensive performance. PBT has excellent high temperature resistance, corrosion resistance, radiation resistance, balanced physical and mechanical properties, excellent dimensional stability and excellent electrical properties, etc., and is widely used as a structural polymer material. After filling and modification Widely used as special engineering plastics. At the same time, PBT has been successfully applied in the fields of electronic appliances, aerospace, automobile transportation, machinery and chemical industry. In the plastic modification industry, inorganic minerals such as talcum powder, mica, and glass fiber are generally used as filler component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K7/28C08K7/14B29C47/92B29C48/92
Inventor 杨桂生孙鹏
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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