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Low-warpage PET/PBT composite material and preparation method thereof

A composite material and low warpage technology, applied in the field of low warpage PET/PBT composite material and its preparation, can solve the problems of poor heat resistance and large warpage, and achieve improved formability, heat resistance and crystallization ability , the effect of reducing warpage

Pending Publication Date: 2020-09-04
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to propose a low warpage PET / PBT composite material and its preparation method to solve the problems of large warpage and poor heat resistance

Method used

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  • Low-warpage PET/PBT composite material and preparation method thereof
  • Low-warpage PET/PBT composite material and preparation method thereof
  • Low-warpage PET/PBT composite material and preparation method thereof

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] The present invention will be described in detail below in conjunction with examples.

[0032] The main components used in the embodiments of the present invention are as follows, but those skilled in the art will know that the following components are just examples to illustrate the scheme of the application, and are not limited to the selection of these components:

[0033] PET resin: Kingfa Technology Co., Ltd., brand PET-1, intrinsic viscosity 0.68dl / g, density 1.33g / cm 3 ;

[0034] PBT resin: Kingfa Technology Co., Ltd., brand PBT-1, intrinsic viscosity 0.84dl / g, density 1.31g / cm 3 ;

[0035] AS resin: Taiwan Chemical Fiber Co., Ltd., brand N2200, under the test conditions of 220°C and 10kg, the melt mass flow rate is 25g / 10min, and the density is 1.07g / cm 3 ;

[0036] Sarin resin: American ...

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Abstract

The invention provides a low-warpage PET / PBT composite material. The composition is prepared from the following raw materials in parts by weight: 40-60 parts of PET resin, 10-20 parts of PBT resin, 5-15 parts of AS resin and 10-40 parts of glass fiber. According to the low-warpage PET / PBT composite material disclosed by the invention, the PBT resin and the AS resin are added into the components, so that the warpage degree of the composite material can be greatly reduced, and the formability, heat resistance and yellowing resistance of the composite material are improved.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a low warpage PET / PBT composite material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a semi-crystalline engineering plastic with good mechanical properties, electrical properties, heat resistance and chemical resistance, etc. It is widely used in automobiles, electronics, electrical appliances and other industries . However, PET still has shortcomings, such as slow crystallization speed and difficulty in injection molding. There are more floating fibers on the surface of glass fiber reinforced PET, and the molded products are prone to warping to a greater extent. Moreover, the heat resistance of PET material itself is poor, and it is easy to produce yellowing after baking at high temperature, which greatly limits the industrial application of glass fiber reinforced PET materials. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/12C08L23/08C08K13/04C08K7/14C08K5/134C08K5/526C08K5/098C08J5/04
CPCC08J5/043C08J2367/02C08J2467/02C08J2425/12C08J2423/08C08K13/04C08K7/14C08K5/1345C08K5/526C08K5/098
Inventor 陈锋曹绍强王中林付学俊丁超陈勇文
Owner TIANJIN KINGFA NEW MATERIAL
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