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A kind of preparation method of fiber-reinforced PBT composite material fusion connection joint

A composite material and fiber reinforced technology, applied in the field of thermoplastic materials, can solve the problems of poor interface compatibility in the connecting area of ​​PBT composite materials, and achieve the effect of improving poor interface compatibility, light weight, and easy mold clamping.

Inactive Publication Date: 2018-10-19
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a method for preparing fiber-reinforced PBT composite fusion joints, the purpose of which is to improve the poor interfacial compatibility of the PBT composite connection area, eliminate dry spot defects, and provide a high-strength PBT Composite Fusion Bonding Structure

Method used

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  • A kind of preparation method of fiber-reinforced PBT composite material fusion connection joint
  • A kind of preparation method of fiber-reinforced PBT composite material fusion connection joint

Examples

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Embodiment 1

[0030] The fiber cloth material in this embodiment is the woven basalt fiber cloth with a single layer thickness of 0.4 mm produced by Sichuan Tuoxin Research Institute; the catalyst used is the dihydroxybutyl chloride produced by Guangzhou Yuansu Chemical Co., Ltd. Tin; the CBT resin used is a model of CBT100 produced by Cyclics in the United States, and it was dried in a vacuum oven at 105°C for 10 hours before use.

[0031] The preparation method of the fiber-reinforced PBT composite fusion joint of the present embodiment is carried out according to the following steps:

[0032] (1) if figure 1 As shown in Fig. 1, the vacuum-assisted resin diffusion molding process is used to prepare fiber-reinforced PBT composite parts to be connected with convex grooves. Specifically, a porous steel sheet that can move up and down and is covered with a release cloth is arranged on both sides of the vacuum mold cavity. , lay three layers of fiber cloth in the inner cavity of the vacuum mo...

Embodiment 2

[0039]The fiber cloth used in this example is a unidirectional glass fiber cloth with a single layer thickness of 0.2 mm produced by Yixing Fuxing Glass Fiber Co., Ltd.; Tin chloride; the CBT resin used is the resin model CBT100 produced by Cyclics Company of the United States, and it was dried in a vacuum oven at 105° C. for 10 h before use.

[0040] The preparation method of the fiber-reinforced PBT composite fusion joint of the present embodiment is carried out according to the following steps:

[0041] (1) if figure 1 As shown in Fig. 1, the vacuum-assisted resin diffusion molding process is used to prepare fiber-reinforced PBT composite parts to be connected with convex grooves. Specifically, a porous steel sheet that can move up and down and is covered with a release cloth is arranged on both sides of the vacuum mold cavity. , lay three layers of glass fiber cloth in the inner cavity of the vacuum mold, no fiber cloth is laid on the steel sheet, and resistance wires are...

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Abstract

The invention belongs to the technical field of thermoplastic materials, and in particular relates to a preparation method for a melted connection joint of fiber reinforced PBT composite materials. The invention provides the preparation method for the melted connection joint of the fiber reinforced PBT composite materials by using the characteristic of very low melt viscosity of CBT, namely a new melting connection technology of heating a resin matrix in a surface to be connected of the composite materials to be partially melted and then cooled and consolidated is used to provide a connecting technology and method for preparing large components made of PBT composite materials. Compared with the traditional thermoplastic composite material connection technology, the preparation method for the melted connection joint of the fiber reinforced PBT composite materials is the process with high performances and low cost, and further can be used for producing lightweight, high-strength and large-sized connecting structures of thermoplastic composite materials.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic materials, and in particular relates to a preparation method of a fiber-reinforced PBT composite material fusion connection joint. Background technique [0002] Thermoplastic composite materials have good toughness and impact resistance, and have the advantages of short molding cycle, low manufacturing cost, recyclable waste, and secondary processing of products. They have been widely used in various industrial fields in recent years. However, the high melt viscosity of traditional thermoplastic resins makes it difficult to fully impregnate reinforcing fibers and prepare high-strength composite materials with high fiber volume content, which has always been a shackle that limits its application in medium and large main load-bearing components. . [0003] The new high-performance thermoplastic cyclic butylene terephthalate (CBT) composite material provides the possibility for the development...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/36B29C70/54B29C65/22C08L67/02C08K7/06C08K7/14C08K7/10C08G63/183
CPCB29C65/221B29C70/36B29C70/54C08G63/183C08L67/02C08L2205/025C08K7/10C08K7/14
Inventor 张璐卢少微王晓强吕伯超许卫锴孟庆实
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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