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Glass fiber reinforced polybutylece terephthalate (PBT)/acrylonitrile styrene acrylate (ASA) alloy material and preparation method thereof

A technology of alloy materials and PBT resin, which is applied in the field of glass fiber reinforced PBT/ASA alloy materials and its preparation, can solve the problems of impact strength of glass fiber reinforced PBT material mechanical properties, poor weather resistance of ABS, and limited application range, etc., to achieve Excellent low warpage performance and dimensional stability, excellent processability, excellent mechanical properties

Inactive Publication Date: 2013-02-06
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Publication No. CN 1563186A proposes the use of magnesium salt whiskers mixed with glass fibers to prepare low-warp glass fiber-reinforced PBT materials, but the addition of magnesium salt whiskers and other inorganic materials has a significant impact on the mechanical properties of glass fiber-reinforced PBT materials. Impact strength has a greater effect on
[0006] A glass fiber reinforced PBT / ABS alloy composite material is prepared in the patent with the publication number CN 101220198A, but the application range of the material is limited due to the poor weather resistance of ABS in the alloy
[0007] The patent with publication number CN 101838443A proposes a preparation method of PBT / ASA alloy material with good interface compatibility, but the preparation method of glass fiber reinforced PBT / ASA alloy material is not mentioned in the patent

Method used

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  • Glass fiber reinforced polybutylece terephthalate (PBT)/acrylonitrile styrene acrylate (ASA) alloy material and preparation method thereof
  • Glass fiber reinforced polybutylece terephthalate (PBT)/acrylonitrile styrene acrylate (ASA) alloy material and preparation method thereof
  • Glass fiber reinforced polybutylece terephthalate (PBT)/acrylonitrile styrene acrylate (ASA) alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050]Take 87.6 parts by weight of polybutylene terephthalate, 1 part by weight of ASA resin, 1 part by weight of toughening agent, 0.1 part by weight of maleic anhydride type compatibilizer, and 10100.1 parts by weight of polybutylene terephthalate after drying at 120°C for 4 hours. parts, 0.1 parts by weight of lubricant, 0.1 parts by weight of nucleating agent, after mixing uniformly in a high-speed mixer, put it into the main feeder of the twin-screw extruder, and simultaneously feed 10 parts by weight of chopped glass fiber from the side It is fed into the machine, granulated after twin-screw extrusion, and the glass fiber reinforced PBT / ASA alloy material is obtained. The processing technology is: the temperature of the first zone is 230°C, the temperature of the second zone is 250°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 240°C, the temperatu...

Embodiment 2

[0052] Take 69.2 parts by weight of polybutylene terephthalate, 5 parts by weight of ASA resin, 10 parts by weight of SAN resin, 1 part by weight of toughening agent, and 0.5 parts by weight of maleic anhydride type compatibilizer after drying at 120°C for 4 hours , 10100.1 parts by weight of antioxidant, 0.1 parts by weight of lubricant, and 0.1 parts by weight of nucleating agent, after mixing uniformly in a high-speed mixer, put into the main feeder of the twin-screw extruder, and simultaneously 30 parts by weight of chopped The glass fiber is fed by a side feeder, extruded by a twin-screw and then granulated to obtain a glass fiber reinforced PBT / ASA alloy material. The processing technology is: the temperature of the first zone is 230°C, the temperature of the second zone is 250°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 240°C, the temperature o...

Embodiment 3

[0054] Take 26 parts by weight of polybutylene terephthalate, 30 parts by weight of ASA resin, 20 parts by weight of SAN resin, 2 parts by weight of toughening agent, and 0.5 parts by weight of maleic anhydride type compatibilizer after drying at 120°C for 4 hours. , 0.5 parts by weight of epoxy compatibilizer, 1680.3 parts by weight of antioxidant, 0.3 parts by weight of lubricant, 0.4 parts by weight of nucleating agent, after mixing uniformly in a high-speed mixer, drop into the main feed of twin-screw extruder At the same time, 30 parts by weight of chopped glass fiber is fed from a side feeder, extruded by a twin-screw and then granulated to obtain a glass fiber reinforced PBT / ASA alloy material. The processing technology is: the temperature of the first zone is 230°C, the temperature of the second zone is 250°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, the temperature of the fifth zone is 240°C, the temperature of the sixth ...

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Abstract

The invention discloses a glass fiber reinforced polybutylece terephthalate (PBT) / acrylonitrile styrene acrylate (ASA) alloy material and a preparation method thereof. The glass fiber reinforced PBT / ASA alloy material is characterized by comprising raw materials of 5-87.6 wt.% of a PBT resin, 1-30 wt.% of an ASA resin, 0-20 wt.% of a styrene-arcylonitrile (SAN) resin, 10-30 wt.% of glass fiber, 1-8 wt.% of a flexibilizer, 0.1-4 wt.% of a compatilizer, 0.1-1wt.% of an antioxidant, 0.1-1wt.% of a lubricating agent and 0.1-1wt.% of a nucleating agent. The preparation method includes feeding the raw materials into a double-screw extruder, adding the glass fiber from a side feeding port, and extruding produced granules at the temperature of 210-280 DEG C. The glass fiber reinforced PBT / ASA alloy material has an excellent low-warpage performance and size stability and simultaneously has a good processing performance of a glass fiber reinforced PBT material.

Description

technical field [0001] The invention provides a glass fiber reinforced PBT / ASA alloy material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] As one of the top five engineering plastics in the world, polybutylene terephthalate (PBT) is widely used in the fields of electronics, automobiles, machinery and equipment due to its excellent processing performance, heat resistance and insulation performance. [0003] In recent years, with the enhancement of people's awareness of environmental protection and the need to save costs, the large-scale thin-walled and lightweight plastic parts have gradually become a development trend in the modified plastics industry. Due to the orientation of glass fibers and the anisotropic crystallization characteristics of PBT resin in glass fiber reinforced PBT materials, glass fiber reinforced PBT has serious warpage problems when preparing large thin-walled parts. The warpage o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/12C08L51/00C08L23/08C08L35/06C08L51/06C08L63/02C08L51/08C08K13/06C08K9/06C08K7/14C08J5/08B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 李志路丁正亚肖军华冯德才
Owner SHANGHAI KINGFA SCI & TECH
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