Ablation-resistance resin for resin film infusion process and preparation method thereof

A resin film and ablation resistance technology, applied in the field of resin and its preparation, can solve the problem that the heat resistance and ablation resistance of the modified resin film cannot meet the requirements of the ablation material, and the heat resistance and toughness cannot meet the ablation resistance. Corrosion materials development requirements, reducing the crosslinking density of phenolic resins and other issues, to achieve the effects of excellent mechanical properties, strong fire resistance, and simple preparation process

Active Publication Date: 2015-07-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the obtained resin film can meet the RFI process, the crosslinking density of the phenolic resin is reduced during the preparation process, so that the heat resistance and ablation resistance of the modified resin film cannot meet the requirements of ablation materials.
Gu Aijuan et al. (Patent No.: 200910181349) used hyperbranched polysiloxane to modify bismaleimide resin in order to obtain toughness, heat resistance, resin film with improved dielectric properties, but hyperbranched polymers and bismaleimide The cost of imide resin is relatively high in the actual production process, and its heat resistance and toughness also cannot meet the development requirements of ablation-resistant materials.

Method used

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  • Ablation-resistance resin for resin film infusion process and preparation method thereof
  • Ablation-resistance resin for resin film infusion process and preparation method thereof
  • Ablation-resistance resin for resin film infusion process and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] The ablation-resistant resin for the resin film infiltration process is composed of a mixture of 100 parts of barium phenolic resin, 20 parts of polyester polyurethane and 5 parts of aryl boron phenolic resin in any proportion by mass;

[0026] The preparation method of the ablation-resistant resin for the resin film infiltration process of the present invention comprises the following steps:

[0027] 1) Place the barium phenolic resin solution on the polytetrafluoroethylene film and spread it flat, then put it into a vacuum drying oven, and after vacuum drying, drop to room temperature and take it out to obtain the prepolymer of the barium phenolic resin;

[0028] 2) mixing the polyester polyurethane and the aryl boron phenolic resin with the thermosetting barium phenolic resin obtained in step 1) in any proportion, and stirring evenly to obtain the mixture;

[0029] 3) The mixture obtained in step 2) and mixed in any proportion is placed in an oven and reacted at a te...

Embodiment 2

[0035] The ablation-resistant resin for the resin film infiltration process of the present invention is composed of 100 parts by mass of barium phenolic resin and 4 parts of polyester polyurethane;

[0036] The preparation method of the ablation-resistant resin for the resin film infiltration process of the present invention comprises the following steps:

[0037] 1) Place the barium phenolic resin solution on the polytetrafluoroethylene film and spread it flat, then put it into a vacuum drying oven, and after vacuum drying, drop to room temperature and take it out to obtain the prepolymer of the barium phenolic resin;

[0038] 2) mixing the polyester polyurethane with the barium phenolic resin obtained in step 1) in any proportion, and stirring evenly to obtain the mixture;

[0039] 3) The mixture obtained in step 2) and mixed in any proportion is placed in an oven and reacted at a temperature of 100°C. After the reaction is completed, the ablation heat-resistant resin for th...

Embodiment 3

[0045] The ablation-resistant resin for the resin film infiltration process of the present invention is a mixture of 100 parts by mass of barium phenolic resin, 4 parts of polyester polyurethane and 2 parts of aryl boron phenolic resin in any proportion. composition;

[0046] The preparation method of the ablation-resistant resin for the resin film infiltration process of the present invention comprises the following steps:

[0047] 1) Place the barium phenolic resin solution on the polytetrafluoroethylene film and spread it flat, then put it into a vacuum drying oven, and after vacuum drying, drop to room temperature and take it out to obtain the prepolymer of the barium phenolic resin;

[0048] 2) mixing the polyester polyurethane and the aryl boron phenolic resin with the tungsten phenolic resin obtained in step 1) in any proportion, and stirring evenly to obtain the mixture;

[0049] 3) The mixture obtained in step 2) mixed in any proportion is placed in an oven and react...

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Abstract

The invention discloses ablation-resistance resin for a resin film infusion process and a preparation method thereof, for solving such defects of the existing thermosetting resin substrate as poor processing property, high cost, poor heat resistance (low carbon yield) when used in ablating material in the resin film infusion process. According to the invention, thermoplastic polyurethane and boron phenolic resin take a synergic effect to improve the processing property and heat resistance and a preparation method of a resin film (sheet) having resistance to ablation heat and meeting requirements of the resin film infusion process is further obtained. A composite material made by using the film sheet has ablation resistance and oxidation resistance and also has the advantages of low cost, excellent heat resistance, and excellent processing property, can be widely applied to preparation of protective material, carbon material and anti-wear material having ablation heat resistance and can be used in the most advanced fields such as aerospace and electronics technology.

Description

technical field [0001] The invention relates to a resin and a preparation method thereof, in particular to an ablation-resistant resin for a resin film infiltration process and a preparation method thereof. Background technique [0002] At present, how to use low-cost manufacturing technology to prepare high-performance composite materials is the research focus in the field of international composite materials research. Resin transfer molding (RTM, Resin Transfer Molding) has high efficiency, low investment, good working environment, does not use prepreg, and can largely avoid the use of autoclave molding methods, thereby greatly reducing manufacturing costs. Because the molding process is a closed mold operation, affected by factors such as the type of prefabricated part, the type of resin, the cost of the mold structure, etc., it is difficult to achieve technologically in the preparation of large-scale parts. Resin Film Infiltration (RFI, Resin Film Infusion) is a new met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08L75/06C08L75/04C08L75/14C08L79/04
Inventor 井新利刘育红姜雪吕游
Owner XI AN JIAOTONG UNIV
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