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Ceramic high carbon polymer matrix composite and preparation method thereof

A composite material and polymer technology, which are applied in the field of ceramizable high-carbon polymer-based composite materials and their preparation, to improve the performance of high temperature and high-speed airflow erosion resistance, improve ablation and heat insulation performance, and have a low ceramization temperature. Effect

Active Publication Date: 2014-04-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Publication No. US4269753 invented silicone polymers that can be ceramicized at high temperatures. Silicone polymers are elastomers or resins at room temperature, and are transformed into ceramic structural materials at high temperatures. They have good electrical insulation and excellent heat resistance. properties; carbon-based polymers are not covered in this patent

Method used

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  • Ceramic high carbon polymer matrix composite and preparation method thereof
  • Ceramic high carbon polymer matrix composite and preparation method thereof
  • Ceramic high carbon polymer matrix composite and preparation method thereof

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Experimental program
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Embodiment 2

[0042] The ceramizable high-carbon polymer-based composite material provided in this embodiment is composed of thermosetting high-carbon resin, eutectic mixture, clay-like layered mineral powder, and molding aids, in parts by weight: 15 parts of thermosetting high-carbon resin, 10 parts of eutectic mixture, 20 parts of clay-like layered structure mineral powder, and 0.1 part of molding aid.

Embodiment 3

[0044] The ceramizable high-carbon polymer-based composite material provided in this embodiment is composed of thermosetting high-carbon resin, eutectic mixture, clay-like layered mineral powder, and molding aids, in parts by weight: 32.5 parts of thermosetting high-carbon resin, 7.5 parts of eutectic mixture, 35 parts of clay-like layered structure mineral powder, and 0.8 part of molding aid.

[0045] In the above product examples, the thermosetting high carbon resin is a mixture of one or more of bismaleimide resin, polyphenylene resin, high temperature resistant phenolic resin and polybenzimidazole resin.

[0046] In the above product examples, the clay-like layered structure mineral powder can undergo crystal transformation at temperatures above 1100° C. to form a ceramic phase with a higher melting point and higher hardness.

[0047] In the above product examples, the clay layered mineral powder is a mixture of one or more of talc, mica powder, kaolinite, montmorillonite ...

Embodiment 1

[0053] (1) Weigh 40 parts of mica powder, 50 parts of boron phenolic resin, 10 parts of eutectic mixture, and 0.1 part of zinc stearate and add them to a high-speed mixer for mixing;

[0054] (2) Heat the mixture to a hot-melt state, vacuumize and defoam, then place it on a hot press at 160 ° C to 200 ° C, and mold it under a pressure ≥ 5Mpa for 3 to 4 hours, and then demould it for later use;

[0055] The prepared sample was subjected to a dynamic ablation experiment with a Bunsen burner, the flame was 10mm away from the sample, and the ablation was performed for 15 minutes. The thermal weight loss rate of the sample after ablation is less than 10%, and the dimensional change of the sample after the test is less than 5%. The ablation surface of the material remains intact, and there is no delamination, obvious peeling, peeling and other problems.

[0056] figure 1 are the XRD patterns of the ablation samples at ablation temperatures of 700°C, 900°C, 1100°C, and 1300°C, respe...

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Abstract

The invention relates to a ceramic high carbon polymer matrix composite and a preparation method thereof. The composite comprises the following components according to parts by weight: 15-50 parts of high thermoset carbon resin, 5-10 parts of eutecticevaporate mixture, 20-50 parts of clay stratified structure mineral powder, and 0.1-1.5 parts of molding additives. The preparation method comprises the following steps of hot melting and mixing the components according to the proportion, heating and fusing the mixture for vacuum defoamation, casting in a die, and thermocuring for molding at the temperature, so as to obtain the ceramic high carbon polymer matrix composite. The ceramic component of the polymer is characterized in that the ceramic component can be converted into ceramic material containing carbon in high temperature aerobic environment, the temperature for ceramic conversion is controllable, the ceramic conversion rate is high in high temperature aerobic environment, and the ceramic bovine component can be used in the field of antiflaming and fireproofing and thermal protection.

Description

technical field [0001] The invention belongs to the field of ceramizable polymer-based composite materials, in particular to a ceramizable high-carbon polymer-based composite material and a preparation method thereof. Background technique [0002] Polymer-based ceramizable composite materials have the characteristics of ordinary polymers at room temperature, but can form a ceramic protective layer at high temperatures, which has a certain strength and can withstand a certain amount of heat flow, thereby protecting the interior of the material from high temperature damage. . The production of polymer-based ceramizable composites provides new ideas and methods for flame-retardant, fire-resistant and heat-protective materials. [0003] There has been some research in the field of ceramicization of polymer-based composite materials in China. For example, the publication number CN102675822 has invented a ceramic-based carbon-based polymer composite material, including carbon-bas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/36
Inventor 黄志雄秦岩饶志龙丁杰李云霞张联盟
Owner WUHAN UNIV OF TECH
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