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A platform for research: civil engineering, architecture and urbanism
Modified graphene oxide-based aramid nanofiber paper as well as preparation method and application thereof
The invention discloses modified graphene oxide-based aramid nanofiber paper as well as a preparation method and application thereof, and belongs to the technical field of flame-retardant nano materials. The preparation method of the modified graphene oxide-based aramid nanofiber paper comprises the following steps: uniformly stirring and mixing a nitrogen source and an acid compound at a constant temperature to prepare a modifier mixed solution; performing hydrothermal mixing on the graphene oxide solution and the modifier mixed solution to obtain modified graphene oxide gel; mixing strong base, dimethyl sulfoxide and aramid nanofiber to obtain an aramid nanofiber suspension; mixing the modified graphene oxide gel with the aramid nanofiber suspension to obtain hydrogel; and drying the hydrogel to obtain the modified graphene oxide based aramid nanofiber paper. The modified graphene oxide-based aramid nanofiber paper has relatively high electrical performance and mechanical performance and excellent insulation and flame retardance, and the corresponding speed of a fire alarm is greatly increased. The working performance of the fire early warning sensor can be improved.
一种改性氧化石墨烯基芳纶纳米纤维纸及其制法和应用，属于阻燃纳米材料技术领域。该改性氧化石墨烯基芳纶纳米纤维纸通过以下制备方法制备：将氮源和酸类化合物恒温搅拌混合均匀，制得改性剂混合溶液；将氧化石墨烯溶液和改性剂混合溶液水热混合，得到改性氧化石墨烯凝胶；将强碱、二甲基亚砜和芳纶纳米纤维混合，得到芳纶纳米纤维悬浮液；将改性氧化石墨烯凝胶和芳纶纳米纤维悬浮液混合，得到水凝胶；将水凝胶进行干燥，得到改性氧化石墨烯基芳纶纳米纤维纸。该改性氧化石墨烯基芳纶纳米纤维纸具有较高的电气性能和力学性能、优良的绝缘和阻燃性，极大的提升了火灾报警器的相应速度。能够改善火灾预警传感器的工作性能。
Modified graphene oxide-based aramid nanofiber paper as well as preparation method and application thereof
The invention discloses modified graphene oxide-based aramid nanofiber paper as well as a preparation method and application thereof, and belongs to the technical field of flame-retardant nano materials. The preparation method of the modified graphene oxide-based aramid nanofiber paper comprises the following steps: uniformly stirring and mixing a nitrogen source and an acid compound at a constant temperature to prepare a modifier mixed solution; performing hydrothermal mixing on the graphene oxide solution and the modifier mixed solution to obtain modified graphene oxide gel; mixing strong base, dimethyl sulfoxide and aramid nanofiber to obtain an aramid nanofiber suspension; mixing the modified graphene oxide gel with the aramid nanofiber suspension to obtain hydrogel; and drying the hydrogel to obtain the modified graphene oxide based aramid nanofiber paper. The modified graphene oxide-based aramid nanofiber paper has relatively high electrical performance and mechanical performance and excellent insulation and flame retardance, and the corresponding speed of a fire alarm is greatly increased. The working performance of the fire early warning sensor can be improved.
一种改性氧化石墨烯基芳纶纳米纤维纸及其制法和应用，属于阻燃纳米材料技术领域。该改性氧化石墨烯基芳纶纳米纤维纸通过以下制备方法制备：将氮源和酸类化合物恒温搅拌混合均匀，制得改性剂混合溶液；将氧化石墨烯溶液和改性剂混合溶液水热混合，得到改性氧化石墨烯凝胶；将强碱、二甲基亚砜和芳纶纳米纤维混合，得到芳纶纳米纤维悬浮液；将改性氧化石墨烯凝胶和芳纶纳米纤维悬浮液混合，得到水凝胶；将水凝胶进行干燥，得到改性氧化石墨烯基芳纶纳米纤维纸。该改性氧化石墨烯基芳纶纳米纤维纸具有较高的电气性能和力学性能、优良的绝缘和阻燃性，极大的提升了火灾报警器的相应速度。能够改善火灾预警传感器的工作性能。
Modified graphene oxide-based aramid nanofiber paper as well as preparation method and application thereof
一种改性氧化石墨烯基芳纶纳米纤维纸及其制法和应用
MENG QINGSHI (author) / TIAN WENTAO (author) / HAN SENSEN (author) / LI SHUANGSHAN (author) / ZHU YONGQIANG (author) / WANG SHUO (author) / LIU JIANBANG (author)
2024-08-30
Patent
Electronic Resource
Chinese
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