Ceramic high carbon polymer matrix composite and preparation method thereof

A technology of composite materials and polymers, applied in the field of ceramizable high-carbon polymer-based composite materials and their preparation, to achieve good thermal protection, high ceramic yield, and easy industrial production

Active Publication Date: 2013-04-24
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 int

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Product Example 2:

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

Example Embodiment

[0043] Product Example 3:

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

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

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

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

Example Embodiment

[0052] Method Example 1:

[0053] (1) Weigh 40 parts of mica powder, 50 parts of boron phenolic resin, 10 parts of eutectic mixture, 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, and then place it on a hot press at 160℃~200℃, pressure ≥5Mpa for 3~4 hours, and then demold it for later use;

[0055] The prepared samples were subjected to dynamic ablation experiments with a Bunsen burner, the flame was 10 mm away from the sample, and the ablation was performed for 15 min. 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%.

[0056] figure 1 XRD patterns of the ablated samples at ablation temperatures of 700°C, 900°C, 1100°C, and 1300°C, respectively. figure 2 EDS energy spectrum of the ceramic protective layer after ablation of the ablated sample at 1300 °C. It can be seen from the ...

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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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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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