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Preparation method of carbon fiber sewing hardening thermal insulation material
The invention discloses a preparation method of a carbon fiber sewing hardening thermal insulation material. The method comprises the following specific steps of 1, taking a carbon fiber soft felt asa main raw material, 2, longitudinally sewing and forming the carbon fibers, 3, preparing a resin impregnation liquid, 4, resin impregnation, 5, curing treatment, 6, carrying out carbonization treatment, 7, mechanical treatment, and 8, chemical vapor deposition. Compared with the prior art, the final density of the prepared carbon fiber sewing hardening thermal insulation material is 0.20 g/cm<3>to 0.60 g/cm<3>, the heat conductivity coefficient is smaller than or equal to 0.4 W/m.K, the purity is smaller than or equal to 1000 ppm, the airflow scouring resistance and the oxidation resistanceare high, and layering is not likely to happen; besides, the carbon fiber longitudinal sewing carbon felt forming process does not need other molds or moulds for forming, all layers of carbon felts are powerfully connected into a whole through longitudinal carbon fibers, layering is not prone to occurring under the action of high-temperature cyclic thermal stress, the integrity is better, and thehardening thermal insulation material has excellent airflow scouring resistance and oxidation resistance. And the service life of the thermal insulation material in the high-temperature furnace is greatly prolonged.
本发明公开了一种碳纤维缝制硬化保温材料的制备方法,该方法具体步骤为:一、采用碳纤维软毡作为主要原材料；二、碳纤维纵向缝制成型；三、树脂浸渍液的配置；四、树脂浸渍；五、固化处理；六、碳化处理；七、机械处理；八、化学气象沉积。与现有技术相比，制备的碳纤维缝制硬化保温材料，其最终密度为0.20g/cm3‑0.60g/cm3，导热系数≤0.4W/m.K，纯度≤1000ppm，抗气流冲刷及抗氧化能力强，不易分层；此外，碳纤维纵向缝制碳毡的成型工艺，不需要借助其他模具或胎具成型，纵向碳纤维强有力的将各层碳毡连接成整体，在高温循环热应力作用下不易产生分层，整体性更好，而硬化保温材料具有优异的抗气流冲刷能力和抗氧化能力，大大延长了保温材料在高温炉内的使用寿命。
Preparation method of carbon fiber sewing hardening thermal insulation material
The invention discloses a preparation method of a carbon fiber sewing hardening thermal insulation material. The method comprises the following specific steps of 1, taking a carbon fiber soft felt asa main raw material, 2, longitudinally sewing and forming the carbon fibers, 3, preparing a resin impregnation liquid, 4, resin impregnation, 5, curing treatment, 6, carrying out carbonization treatment, 7, mechanical treatment, and 8, chemical vapor deposition. Compared with the prior art, the final density of the prepared carbon fiber sewing hardening thermal insulation material is 0.20 g/cm<3>to 0.60 g/cm<3>, the heat conductivity coefficient is smaller than or equal to 0.4 W/m.K, the purity is smaller than or equal to 1000 ppm, the airflow scouring resistance and the oxidation resistanceare high, and layering is not likely to happen; besides, the carbon fiber longitudinal sewing carbon felt forming process does not need other molds or moulds for forming, all layers of carbon felts are powerfully connected into a whole through longitudinal carbon fibers, layering is not prone to occurring under the action of high-temperature cyclic thermal stress, the integrity is better, and thehardening thermal insulation material has excellent airflow scouring resistance and oxidation resistance. And the service life of the thermal insulation material in the high-temperature furnace is greatly prolonged.
本发明公开了一种碳纤维缝制硬化保温材料的制备方法,该方法具体步骤为:一、采用碳纤维软毡作为主要原材料；二、碳纤维纵向缝制成型；三、树脂浸渍液的配置；四、树脂浸渍；五、固化处理；六、碳化处理；七、机械处理；八、化学气象沉积。与现有技术相比，制备的碳纤维缝制硬化保温材料，其最终密度为0.20g/cm3‑0.60g/cm3，导热系数≤0.4W/m.K，纯度≤1000ppm，抗气流冲刷及抗氧化能力强，不易分层；此外，碳纤维纵向缝制碳毡的成型工艺，不需要借助其他模具或胎具成型，纵向碳纤维强有力的将各层碳毡连接成整体，在高温循环热应力作用下不易产生分层，整体性更好，而硬化保温材料具有优异的抗气流冲刷能力和抗氧化能力，大大延长了保温材料在高温炉内的使用寿命。
Preparation method of carbon fiber sewing hardening thermal insulation material
一种碳纤维缝制硬化保温材料的制备方法
PEI YANG (author) / HOU GUANGYUAN (author) / LI XIAOTIAN (author)
2021-03-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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