发明名称 |
CARBON-CARBON COMPOSITES |
摘要 |
A process for preparing a carbon-carbon composite including the steps of: (a) providing a curable low viscosity aromatic epoxy resin liquid formulation, wherein the formulation has a neat viscosity of less than 10,000 mPa-s at 25° C. prior to adding optional components, prior to curing, and prior to carbonizing; and wherein the formulation being cured has a carbon yield of at least 35 wt % disregarding the weight of the carbon matrix and any optional components present in the composition; (b) contacting a carbon matrix with the formulation of step (a); (c) curing the contacted carbon matrix of step (b); and (d) carbonizing the cured carbon matrix of step (c) to form a carbon-carbon composite; and a carbon-carbon composite made by the process. |
申请公布号 |
US2015115195(A1) |
申请公布日期 |
2015.04.30 |
申请号 |
US201314391717 |
申请日期 |
2013.05.17 |
申请人 |
Dow Global Technologies LLC |
发明人 |
Lakrout Hamed;Marks Maurice J.;Valette Ludovic |
分类号 |
C01B31/02;C08J5/24;F16D69/02;C09K5/14 |
主分类号 |
C01B31/02 |
代理机构 |
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代理人 |
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主权项 |
1. A process for preparing a carbon-carbon composite comprising the steps of:
(I) providing a liquid carbon precursor formulation comprising (a) at least one aromatic epoxy resin; and (b)(i) at least one aromatic co-reactive curing agent, (b)(ii) at least one catalytic curing agent, or (b)(iii) a mixture thereof; wherein the liquid precursor composition has a neat viscosity of less than 10,000 mPa-s at 25° C. prior to adding optional components, prior to curing, and prior to carbonizing; and wherein the liquid precursor composition being cured has a carbon yield of at least 35 weight percent disregarding the weight of the carbon matrix and any optional components present in the composition; (II) contacting a carbon matrix with the liquid formulation of step (I) to form a contacted carbon matrix; (III) curing the formulation of step (I) contacted to the carbon matrix of step (II) to form a cured contacted carbon matrix (also referred to as a “green carbon-carbon composite”); wherein the cured formulation contacted to the carbon matrix has a carbon yield of at least 35 wt % disregarding the weight of the carbon matrix and any optional components present in the composition; and (IV) carbonizing the cured contacted carbon matrix of step (III) to form a carbon-carbon composite. |
地址 |
Midland MI US |