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Method for improving thermal conductivity of pitch-based carbon fiber composite material in thickness direction
The invention belongs to the field of carbon fiber composite materials, and provides a method for improving the thermal conductivity of a pitch-based carbon fiber composite material in the thickness direction. The invention aims to solve the problem of low thermal conductivity of the pitch-based carbon fiber composite material in the thickness direction and improve the performance and reliability of the pitch-based carbon fiber composite material in the aerospace field. The technical scheme of the invention is as follows: a chemical vapor deposition (CVD) method is utilized to prepare a carbon nanotube (CNT) with a large length-diameter ratio on the surface of pitch-based carbon fiber, so that a novel composite material with the advantages of high thermal conductivity, low density, high temperature resistance and the like is formed. The innovation point of the invention is as follows: the CNT with large length-diameter ratio grows on the surface of the pitch-based carbon fiber, a heat conduction channel in the thickness direction of the pitch-based carbon fiber composite material is constructed, and the heat conductivity of the pitch-based carbon fiber composite material is obviously improved. The method has the advantages that the method is simple and controllable, the product is excellent in performance, stable and durable, and the method is wide in application and broad in prospect.
本发明属于碳纤维复合材料领域，提供了一种提升沥青基碳纤维复合材料厚度方向热导率的方法。本发明的目的是解决沥青基碳纤维复合材料厚度方向热导率低的问题，提高其在航空航天领域中的性能和可靠性。本发明的技术方案是：利用化学气相沉积(CVD)法在沥青基碳纤维表面制备了大长径比的碳纳米管(CNT)，从而形成了一种具有高热导率、低密度和耐高温等优点的新型复合材料。本发明的创新点是：在沥青基碳纤维表面生长了大长径比CNT，构建了沥青基碳纤维复合材料厚度方向上的热传导通道，显著提高了其热导率。本发明的优势是：方法简单、可控，本发明的产品性能优异、稳定、耐久，本发明的应用广泛、前景广阔。
Method for improving thermal conductivity of pitch-based carbon fiber composite material in thickness direction
The invention belongs to the field of carbon fiber composite materials, and provides a method for improving the thermal conductivity of a pitch-based carbon fiber composite material in the thickness direction. The invention aims to solve the problem of low thermal conductivity of the pitch-based carbon fiber composite material in the thickness direction and improve the performance and reliability of the pitch-based carbon fiber composite material in the aerospace field. The technical scheme of the invention is as follows: a chemical vapor deposition (CVD) method is utilized to prepare a carbon nanotube (CNT) with a large length-diameter ratio on the surface of pitch-based carbon fiber, so that a novel composite material with the advantages of high thermal conductivity, low density, high temperature resistance and the like is formed. The innovation point of the invention is as follows: the CNT with large length-diameter ratio grows on the surface of the pitch-based carbon fiber, a heat conduction channel in the thickness direction of the pitch-based carbon fiber composite material is constructed, and the heat conductivity of the pitch-based carbon fiber composite material is obviously improved. The method has the advantages that the method is simple and controllable, the product is excellent in performance, stable and durable, and the method is wide in application and broad in prospect.
本发明属于碳纤维复合材料领域，提供了一种提升沥青基碳纤维复合材料厚度方向热导率的方法。本发明的目的是解决沥青基碳纤维复合材料厚度方向热导率低的问题，提高其在航空航天领域中的性能和可靠性。本发明的技术方案是：利用化学气相沉积(CVD)法在沥青基碳纤维表面制备了大长径比的碳纳米管(CNT)，从而形成了一种具有高热导率、低密度和耐高温等优点的新型复合材料。本发明的创新点是：在沥青基碳纤维表面生长了大长径比CNT，构建了沥青基碳纤维复合材料厚度方向上的热传导通道，显著提高了其热导率。本发明的优势是：方法简单、可控，本发明的产品性能优异、稳定、耐久，本发明的应用广泛、前景广阔。
Method for improving thermal conductivity of pitch-based carbon fiber composite material in thickness direction
一种提升沥青基碳纤维复合材料厚度方向热导率的方法
GOU KAI (author) / DENG WENCHAO (author) / ZHAO YINGNAN (author) / YUE SHUJING (author) / YIN GAOCHONG (author) / LI FUHAI (author)
2024-01-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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