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The invention relates to an antioxidant high-temperature-resistant carbon fiber composite material and a preparation method thereof, and belongs to the technical field of preparation of special materials. The preparation method comprises the following steps: taking viscose-based carbon fiber as a raw material; chopping, mixing and dipping the raw material with a dopamine solution; mixing and impregnating impregnated chopped fibers and a copper nitrate solution; putting an obtained filter residue into a vacuum tube furnace to carbonize; obtaining pretreated carbon fibers, then, mixing boric acid, methyltriethoxysilane, dimethyldiethoxysilane and absolute ethyl alcohol, and then mixing with the pretreated carbon fibers to obtain a mixed solution, putting the mixed solution into a drying ovenfor cross-linking and curing to obtain a mixed gel, and finally, carrying out high-temperature cracking reaction on the mixed gel to finally obtain the antioxidant high-temperature-resistant carbon fiber composite material which is high in oxidation resistance and excellent in high temperature resistance and has a wide application prospect.
本发明涉及一种抗氧化耐高温的碳纤维复合材料及其制备方法，属于特种材料制备技术领域。本发明首先以粘胶基碳纤维为原料，将其短切后和多巴胺溶液混合浸渍，再将浸渍后的短切纤维和硝酸铜溶液混合浸渍，再将得到的滤渣放入真空管式炉中碳化，得到预处理碳纤维，接着再将硼酸和甲基三乙氧基硅烷、二甲基二乙氧基硅烷以及无水乙醇混合后再与预处理碳纤维混合得到混合液，并将混合液放入烘箱中交联固化得到混合凝胶，最终将混合凝胶进行高温裂解反应，最终制得抗氧化耐高温的碳纤维复合材料，本发明的碳纤维复合材料，抗氧化性强，耐高温性优异，具有广阔的应用前景。
The invention relates to an antioxidant high-temperature-resistant carbon fiber composite material and a preparation method thereof, and belongs to the technical field of preparation of special materials. The preparation method comprises the following steps: taking viscose-based carbon fiber as a raw material; chopping, mixing and dipping the raw material with a dopamine solution; mixing and impregnating impregnated chopped fibers and a copper nitrate solution; putting an obtained filter residue into a vacuum tube furnace to carbonize; obtaining pretreated carbon fibers, then, mixing boric acid, methyltriethoxysilane, dimethyldiethoxysilane and absolute ethyl alcohol, and then mixing with the pretreated carbon fibers to obtain a mixed solution, putting the mixed solution into a drying ovenfor cross-linking and curing to obtain a mixed gel, and finally, carrying out high-temperature cracking reaction on the mixed gel to finally obtain the antioxidant high-temperature-resistant carbon fiber composite material which is high in oxidation resistance and excellent in high temperature resistance and has a wide application prospect.
本发明涉及一种抗氧化耐高温的碳纤维复合材料及其制备方法，属于特种材料制备技术领域。本发明首先以粘胶基碳纤维为原料，将其短切后和多巴胺溶液混合浸渍，再将浸渍后的短切纤维和硝酸铜溶液混合浸渍，再将得到的滤渣放入真空管式炉中碳化，得到预处理碳纤维，接着再将硼酸和甲基三乙氧基硅烷、二甲基二乙氧基硅烷以及无水乙醇混合后再与预处理碳纤维混合得到混合液，并将混合液放入烘箱中交联固化得到混合凝胶，最终将混合凝胶进行高温裂解反应，最终制得抗氧化耐高温的碳纤维复合材料，本发明的碳纤维复合材料，抗氧化性强，耐高温性优异，具有广阔的应用前景。
Antioxidant high-temperature-resistant carbon fiber composite material and preparation method thereof
一种抗氧化耐高温的碳纤维复合材料及其制备方法
LUO SHIJU (author)
2020-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
D06M
Behandeln von Fasern, Fäden, Garnen, Textilgut, Federn oder aus solchen Materialien hergestelltem Fasergut, soweit nicht anderweitig in Klasse D06 vorgesehen
,
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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