A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon fiber insulation felt and purification method thereof
The invention discloses a carbon fiber insulation felt and a purification method thereof. The purification method comprises the following steps: S1, taking a pre-purified carbon fiber insulation felt prepared by low-temperature carbonization treatment; s2, performing low-temperature purification on the pre-purified carbon fiber insulation felt at the purification temperature of 600-1200 DEG C to obtain a carbon felt; s3, carrying out graphitization treatment on the carbon felt in the S2 to obtain a graphite carbon fiber insulation felt; and S4, performing high-temperature purification on the graphite carbon fiber insulation felt, wherein the purification temperature is 1800-2000 DEG C. The method comprises the following steps: firstly, carrying out primary purification by adopting a low-temperature purification treatment process, so that the ash content in the carbon fiber felt is reduced to be less than 100ppm; then, a graphitization high-temperature heat treatment process is adopted, and the ash content in the carbon fiber heat preservation felt is further reduced to 50 ppm or below. Finally, a high-temperature purification treatment process is adopted, so that the ash content in the carbon fiber heat preservation felt is reduced to 10 ppm or below, and the high-purity carbon fiber heat preservation felt is obtained. The purification method is easy to operate and low in equipment requirement, and the low-temperature purification process has the advantages of being low in energy consumption, small in equipment corrosion and the like.
本发明公开了一种碳纤维保温毡及其纯化方法，包括以下步骤：S1、取经低温碳化处理制得的预纯化碳纤维保温毡；S2、将预纯化碳纤维保温毡进行低温纯化，纯化的温度为600～1200℃，制得碳毡；S3、将S2中的碳毡进行石墨化处理，得到石墨碳纤维保温毡；S4、将石墨碳纤维保温毡进行高温纯化，纯化的温度为1800～2000℃。本发明首先采用低温纯化处理工艺进行一次纯化，使碳纤维毡内部灰分含量降低至100ppm以下。随后采用石墨化高温热处理工艺，进一步降低碳纤维保温毡内部灰分至50ppm以下。最后采用高温纯化处理工艺，使碳纤维保温毡内部灰分降低至10ppm以下，获得高纯碳纤维保温毡。该纯化方法操作简单，设备要求较低，低温纯化过程具有能耗低、对设备腐蚀较小等优势。
Carbon fiber insulation felt and purification method thereof
The invention discloses a carbon fiber insulation felt and a purification method thereof. The purification method comprises the following steps: S1, taking a pre-purified carbon fiber insulation felt prepared by low-temperature carbonization treatment; s2, performing low-temperature purification on the pre-purified carbon fiber insulation felt at the purification temperature of 600-1200 DEG C to obtain a carbon felt; s3, carrying out graphitization treatment on the carbon felt in the S2 to obtain a graphite carbon fiber insulation felt; and S4, performing high-temperature purification on the graphite carbon fiber insulation felt, wherein the purification temperature is 1800-2000 DEG C. The method comprises the following steps: firstly, carrying out primary purification by adopting a low-temperature purification treatment process, so that the ash content in the carbon fiber felt is reduced to be less than 100ppm; then, a graphitization high-temperature heat treatment process is adopted, and the ash content in the carbon fiber heat preservation felt is further reduced to 50 ppm or below. Finally, a high-temperature purification treatment process is adopted, so that the ash content in the carbon fiber heat preservation felt is reduced to 10 ppm or below, and the high-purity carbon fiber heat preservation felt is obtained. The purification method is easy to operate and low in equipment requirement, and the low-temperature purification process has the advantages of being low in energy consumption, small in equipment corrosion and the like.
本发明公开了一种碳纤维保温毡及其纯化方法，包括以下步骤：S1、取经低温碳化处理制得的预纯化碳纤维保温毡；S2、将预纯化碳纤维保温毡进行低温纯化，纯化的温度为600～1200℃，制得碳毡；S3、将S2中的碳毡进行石墨化处理，得到石墨碳纤维保温毡；S4、将石墨碳纤维保温毡进行高温纯化，纯化的温度为1800～2000℃。本发明首先采用低温纯化处理工艺进行一次纯化，使碳纤维毡内部灰分含量降低至100ppm以下。随后采用石墨化高温热处理工艺，进一步降低碳纤维保温毡内部灰分至50ppm以下。最后采用高温纯化处理工艺，使碳纤维保温毡内部灰分降低至10ppm以下，获得高纯碳纤维保温毡。该纯化方法操作简单，设备要求较低，低温纯化过程具有能耗低、对设备腐蚀较小等优势。
Carbon fiber insulation felt and purification method thereof
一种碳纤维保温毡及其纯化方法
WU XIAO (author) / LI DIZHU (author) / LI BIAO (author) / HUANG DONG (author)
2023-08-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Carbon fiber insulation felt reinforced film layer and carbon fiber insulation felt comprising same
| European Patent Office | 2024
Hard carbon fiber insulation felt and preparation method thereof
| European Patent Office | 2022
Carbon/carbon hard insulation felt and preparation method thereof
| European Patent Office | 2024
Preparation method and application of chopped carbon fiber insulation felt
| European Patent Office | 2024
| European Patent Office | 2024