Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of chopped carbon fiber composite material
The invention provides a preparation method of a short carbon fiber composite material, which comprises the following steps: selecting short carbon fibers, purifying at high temperature to remove metal ions in the short carbon fibers, then soaking the short carbon fibers in an acid solution, performing anode surface oxidation treatment in an electrolytic bath, soaking the short carbon fibers in a solution containing magnesium ions, and drying to obtain the short carbon fiber composite material. Then immersing into a solution containing boric acid and sodium azide for hydrothermal reaction, taking out, washing and drying to obtain modified carbon fiber, adding the modified carbon fiber into silicon dioxide sol, uniformly dispersing, standing and aging, and drying to obtain the carbon fiber composite material. According to the present invention, the obtained short carbon fiber composite material has characteristics of good mechanical property, low heat conductivity coefficient, low thermal conductivity and good thermal shock resistance stability, and can be used for the preparation of the aerosol-structured short carbon fiber composite material, such that the prepared aerosol-structured short carbon fiber composite material has characteristics of good thermal shock resistance and good thermal shock resistance; the material can be widely applied to thermal insulation, sound insulation and fireproof materials in the aspects of thermotics, acoustics, optics, microelectronics, particle detection and the like.
本发明提供了一种短切碳纤维复合材料的制备方法，所述方法包括：选择短切碳纤维，高温纯化去除其中的金属离子，然后浸到酸性溶液中，在电解槽内进行阳极表面氧化处理，浸渍含镁离子的溶液，干燥，然后浸入到含有硼酸和叠氮化钠的溶液中进行水热反应，取出，洗涤，干燥得到改性碳纤维，将所述改性碳纤维加入到二氧化硅溶胶中均匀分散后静置老化，再浸渍于碳酸氢钠水溶液中溶剂置换、干燥后得到气溶胶结构的短切碳纤维复合材料，本发明得到的短切碳纤维复合材料，具有较好的力学性能以及较低的导热系数，低的热传导率以及非常好的抗热震稳定性，可广泛用于热学、声学、光学、微电子、粒子探测等方面的保温，隔音，防火材料。
Preparation method of chopped carbon fiber composite material
The invention provides a preparation method of a short carbon fiber composite material, which comprises the following steps: selecting short carbon fibers, purifying at high temperature to remove metal ions in the short carbon fibers, then soaking the short carbon fibers in an acid solution, performing anode surface oxidation treatment in an electrolytic bath, soaking the short carbon fibers in a solution containing magnesium ions, and drying to obtain the short carbon fiber composite material. Then immersing into a solution containing boric acid and sodium azide for hydrothermal reaction, taking out, washing and drying to obtain modified carbon fiber, adding the modified carbon fiber into silicon dioxide sol, uniformly dispersing, standing and aging, and drying to obtain the carbon fiber composite material. According to the present invention, the obtained short carbon fiber composite material has characteristics of good mechanical property, low heat conductivity coefficient, low thermal conductivity and good thermal shock resistance stability, and can be used for the preparation of the aerosol-structured short carbon fiber composite material, such that the prepared aerosol-structured short carbon fiber composite material has characteristics of good thermal shock resistance and good thermal shock resistance; the material can be widely applied to thermal insulation, sound insulation and fireproof materials in the aspects of thermotics, acoustics, optics, microelectronics, particle detection and the like.
本发明提供了一种短切碳纤维复合材料的制备方法，所述方法包括：选择短切碳纤维，高温纯化去除其中的金属离子，然后浸到酸性溶液中，在电解槽内进行阳极表面氧化处理，浸渍含镁离子的溶液，干燥，然后浸入到含有硼酸和叠氮化钠的溶液中进行水热反应，取出，洗涤，干燥得到改性碳纤维，将所述改性碳纤维加入到二氧化硅溶胶中均匀分散后静置老化，再浸渍于碳酸氢钠水溶液中溶剂置换、干燥后得到气溶胶结构的短切碳纤维复合材料，本发明得到的短切碳纤维复合材料，具有较好的力学性能以及较低的导热系数，低的热传导率以及非常好的抗热震稳定性，可广泛用于热学、声学、光学、微电子、粒子探测等方面的保温，隔音，防火材料。
Preparation method of chopped carbon fiber composite material
一种短切碳纤维复合材料的制备方法
JIA DONGXU (Autor:in) / RAN DONGYANG (Autor:in) / SONG YANAN (Autor:in)
18.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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