Hot-melting phenolic resin prepreg and preparation method thereof

A technology of phenolic resin and hot melt method, which is applied in the field of prepreg manufacturing, can solve the problems of unresearched and little research, and achieve the effects of low curing speed, strong practicability and simple preparation method

Active Publication Date: 2015-11-25
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are very few studies on hot-melt phenolic resin-based prepregs, especially in terms of satisfying the performance and manufacturability of phenolic resins at the same time.

Method used

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  • Hot-melting phenolic resin prepreg and preparation method thereof
  • Hot-melting phenolic resin prepreg and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of hot-melt method phenolic resin prepreg of the present invention comprises the following steps:

[0029] 1) Weigh high-strength glass fiber woven plain glass cloth, barium phenolic resin, acrylic polyurethane and inorganic boron compound boric acid, add barium phenolic resin into the reaction bottle, and heat to 65 ° C to melt the barium phenolic resin, wherein, after heating Add acrylic polyurethane and inorganic boron compound boric acid during the process, and then stir at constant temperature for 120 minutes, so that the rotating speed of the barium phenolic resin in the reaction bottle is 400 rpm to obtain a phenolic resin mixture, and then freeze and store the phenolic resin mixture, wherein the barium phenolic resin The mass parts of resin, acrylic polyurethane and inorganic boron compound boric acid are 100 parts, 4 parts and 4.5 parts respectively, and the mass ratio of the plain glass cloth of high-strength glass fiber weaving and bariu...

Embodiment 2

[0033] The preparation method of hot-melt method phenolic resin prepreg of the present invention comprises the following steps:

[0034] 1) Weigh plain carbon cloth woven with carbon fibers, barium phenolic resin, polyether polyurethane and carboxyphenylboronic acid, add barium phenolic resin to the reaction bottle, and heat to 65°C to melt the molybdenum phenolic resin. Add polyether polyurethane and carboxyl phenylboronic acid, and then stir at constant temperature for 90 minutes, so that the rotating speed of the barium phenolic resin in the reaction bottle is 380 rpm to obtain a phenolic resin mixture, and then freeze and store the phenolic resin mixture, wherein the barium phenolic resin The mass parts of resin, polyether type polyurethane and carboxyl-containing phenylboronic acid are 100 parts, 8 parts and 6.5 parts respectively, and the mass ratio of the plain weave carbon cloth of carbon fiber weaving and barium phenolic resin is 1:1;

[0035]2) Place the phenolic res...

Embodiment 3

[0038] The preparation method of hot-melt method phenolic resin prepreg of the present invention comprises the following steps:

[0039] 1) Weigh the plain weave glass cloth woven by aromatic polyamide fiber, tungsten phenolic resin, polyester polyurethane and boron oxide, add the tungsten phenolic resin into the reaction bottle, and heat to 60°C to melt the tungsten phenolic resin, wherein, Add polyester polyurethane and boron oxide during the heating process, and then stir at constant temperature for 80 minutes, so that the rotating speed of the tungsten phenolic resin in the reaction bottle is 100 rpm to obtain a phenolic resin mixture, and then freeze and store the phenolic resin mixture, wherein, The mass parts of tungsten phenolic resin, polyester polyurethane and boron oxide are 50 parts, 1 part and 1 part respectively, and the mass ratio of plain weave glass cloth woven by aramid fiber and tungsten phenolic resin is 1:1;

[0040] 2) Place the phenolic resin mixture obt...

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PUM

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Abstract

The invention discloses a hot-melting phenolic resin prepreg and a preparation method thereof. The hot-melting phenolic resin prepreg comprises a fiber-reinforced material and the following materials by mass: 50 to 100 parts of thermoset phenolic resin, 1 to 10 parts of a film forming agent, and 1 to 10 parts of a boron-containing additive, wherein the mass ratio of the fiber-reinforced material to the thermoset phenolic resin is (1-3):1. The hot-melting phenolic resin prepreg is slow in curing rate, and relatively high in heat resistance; the preparation method is simple.

Description

technical field [0001] The invention belongs to the technical field of prepreg manufacture, and relates to a hot-melt phenolic resin prepreg and a preparation method thereof. Background technique [0002] The quality of prepreg directly affects the performance of composite components. There are two main types of prepreg preparation: solution impregnation method and hot melt adhesive film method. Among them, the solution impregnation method mainly has problems such as excessively high volatile content, inaccurate control of prepreg resin, a large amount of solvent volatilization, and environmental pollution. Therefore, the hot-melt prepreg process has gradually become the development direction of the current prepreg. The preparation of hot-melt prepregs in the preparation of advanced composite materials has mainly been the development of epoxy resin prepregs in recent years. Among them, the patents published in China include epoxy matrix resin, prepregs and their preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08L75/14C08L75/08C08L75/06C08L75/04C08L79/04C08L61/28C08K3/38C08K7/14C08K5/55B29C70/42
Inventor 刘育红井新利姜雪吕游
Owner XI AN JIAOTONG UNIV
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