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Method for preparing high-purity carbon-carbon composite material from waste carbon-carbon photovoltaic thermal field material
The invention discloses a method for preparing a high-purity carbon-carbon composite material by utilizing waste carbon-carbon photovoltaic thermal field materials, which comprises the following steps: by taking the waste carbon-carbon photovoltaic thermal field materials as raw materials, firstly purifying elements at high temperature, distinguishing the crushed materials by utilizing carbon deposition, and mixing short fibers with a certain length-diameter ratio with the waste carbon-carbon photovoltaic thermal field materials to obtain the high-purity carbon-carbon composite material. Whiskers with different lengths are grown through deposition, so that the length-diameter ratio of the whiskers is increased to realize fibration, the whiskers can be used as reinforcements of subsequent products, and the production cost can be effectively reduced; short fibers with different lengths are mixed, so that the structural strength of the product can be improved, and crack propagation is hindered. And the solid asphalt powder is adopted, so that the problem of non-uniform mixing and dispersion of the liquid resin, the short fibers and the carbon-carbon powder can be effectively avoided. And finally, performing high-temperature purification and carbon deposition again to prepare the high-purity carbon-carbon composite material. The prepared high-purity carbon-carbon composite material is low in cost and high in purity, and can be well applied to P-type and N-type single crystal furnace thermal fields and semiconductor thermal fields with high ash content requirements.
本发明公开一种利用碳碳光伏热场材料废品制备高纯碳碳复合材料的方法，该方法以碳碳光伏热场材料废品为原料，先对元素进行高温纯化利用碳沉积将粉碎后的物料区别化，将具有一定长径比的短纤维，通过沉积生长出不同长度的晶须，使其长径比增大实现类纤维化，可作为后续产品的增强体使用，可有效降低生产成本；而不同长度的短纤维混合能够提高产品的结构强度，阻碍裂纹扩展。采用固态沥青粉末，可有效避免液态树脂与短纤维、碳碳粉料混合分散不均匀的问题。最后再次利用高温纯化和碳沉积，制的高纯碳碳复合材料。本发明制备的高纯碳碳复合材料成本低、纯度高，可很好的应用于对灰分要求很高的P型、N型单晶炉热场和半导体热场中。
Method for preparing high-purity carbon-carbon composite material from waste carbon-carbon photovoltaic thermal field material
The invention discloses a method for preparing a high-purity carbon-carbon composite material by utilizing waste carbon-carbon photovoltaic thermal field materials, which comprises the following steps: by taking the waste carbon-carbon photovoltaic thermal field materials as raw materials, firstly purifying elements at high temperature, distinguishing the crushed materials by utilizing carbon deposition, and mixing short fibers with a certain length-diameter ratio with the waste carbon-carbon photovoltaic thermal field materials to obtain the high-purity carbon-carbon composite material. Whiskers with different lengths are grown through deposition, so that the length-diameter ratio of the whiskers is increased to realize fibration, the whiskers can be used as reinforcements of subsequent products, and the production cost can be effectively reduced; short fibers with different lengths are mixed, so that the structural strength of the product can be improved, and crack propagation is hindered. And the solid asphalt powder is adopted, so that the problem of non-uniform mixing and dispersion of the liquid resin, the short fibers and the carbon-carbon powder can be effectively avoided. And finally, performing high-temperature purification and carbon deposition again to prepare the high-purity carbon-carbon composite material. The prepared high-purity carbon-carbon composite material is low in cost and high in purity, and can be well applied to P-type and N-type single crystal furnace thermal fields and semiconductor thermal fields with high ash content requirements.
本发明公开一种利用碳碳光伏热场材料废品制备高纯碳碳复合材料的方法，该方法以碳碳光伏热场材料废品为原料，先对元素进行高温纯化利用碳沉积将粉碎后的物料区别化，将具有一定长径比的短纤维，通过沉积生长出不同长度的晶须，使其长径比增大实现类纤维化，可作为后续产品的增强体使用，可有效降低生产成本；而不同长度的短纤维混合能够提高产品的结构强度，阻碍裂纹扩展。采用固态沥青粉末，可有效避免液态树脂与短纤维、碳碳粉料混合分散不均匀的问题。最后再次利用高温纯化和碳沉积，制的高纯碳碳复合材料。本发明制备的高纯碳碳复合材料成本低、纯度高，可很好的应用于对灰分要求很高的P型、N型单晶炉热场和半导体热场中。
Method for preparing high-purity carbon-carbon composite material from waste carbon-carbon photovoltaic thermal field material
一种利用碳碳光伏热场材料废品制备高纯碳碳复合材料的方法
LI MENG (author) / WU PANYANG (author) / YIN YONG (author) / CHEN BIN (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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