Cotton fabrics treated with phase change materials( PCMs)were used in multi-layered fabrics of the fire fighter protective clothing to study its effect on thermal protection. The thermal protective performance( TPP) o...Cotton fabrics treated with phase change materials( PCMs)were used in multi-layered fabrics of the fire fighter protective clothing to study its effect on thermal protection. The thermal protective performance( TPP) of the multi-layered fabrics was measured by a TPP tester under flash fire. Results showed that the utilization of the PCM fabrics improved the thermal protective performance of the multi-layered fabrics. The fabric with a PCM add on of 41. 9% increased the thermal protection by 50. 6% and reduced the time to reach a second degree burn by 8. 4 s compared with the reference fabrics( without PCMs). The employment of the PCM fabrics also reduced the blackened areas on the inner layers. The PCM fabrics with higher PCM melting temperature could bring higher thermal protective performance.展开更多
为分析热防护材料领域研究现状和未来发展趋势,文章采用信息可视化、网络分析的研究方法,以Web of Science(WOS)数据库及中国知网(CNKI)数据库中近30年(1993年1月—2023年6月)热防护材料相关的文献作为数据来源绘制可视化信息图谱,对发...为分析热防护材料领域研究现状和未来发展趋势,文章采用信息可视化、网络分析的研究方法,以Web of Science(WOS)数据库及中国知网(CNKI)数据库中近30年(1993年1月—2023年6月)热防护材料相关的文献作为数据来源绘制可视化信息图谱,对发文量、发文国家地区和机构、研究方向、核心作者、关键词等元素逐一进行分析,剖析热防护材料研究领域的发展动态、研究热点及前沿趋势。结果显示,美国、中国为主要研究国家,在该领域居重要地位;LI J(Li Jun)、SONG G W(Song Guowen)、SU Y(Su Yun)、LU Y H(Lu Yehu)、王云仪、朱方龙等作者为该领域的核心作者,在热应激、热防护服的研究中具有重要影响力;热防护服的热防护性与传热机制、人体的热生理与热舒适为活跃的研究主题与研究热点;相变材料、气凝胶、形状记忆织物、蜂窝夹芯织物、三维间隔织物为当前的研究热点材料,新型热防护材料的研发、服装内部结构的优化是未来研究中有效应对热应激的解决方法,是兼顾热防护服的热防护与热舒适平衡的重要途径。展开更多
In order to lighten the weight of the special vehicles and improve their mobility and flexibility, the weight of all subsystems of the whole vehicle must be reduced in the general planning. A fire explosion suppressio...In order to lighten the weight of the special vehicles and improve their mobility and flexibility, the weight of all subsystems of the whole vehicle must be reduced in the general planning. A fire explosion suppression system is an important subsystem for the self-protection of vehicle, protection of crews and safety of a vehicle. The performances of the special vehicles determine their survival ability and combat capability. The composite bottle is made of aluminum alloy with externally wrapped carbon fiber ; it has been proven by a large number of tests that the new type explosion suppression fire distinguisher made of such composite materials applied in the special vehicle has reliable performance, each of its technical indexes is higher or equal to that of a steel distinguisher, and the composites can also optimize the assembly structure of the bottle, and improve the reliability and corrosion resistance. Most important is that the composite materials can effectively lighten the weight of the fire explosion suppression system to reach the target of weight reduction of the subsystem in general planning.展开更多
基金Fundamental Research Funds for the Central Universities,China(No.14D110715/17/18)Start up Fund by Shanghai University of Engineering Science(No.2015-69)Young Teacher Training Program by Shanghai,China(No.ZZGCD15051))
文摘Cotton fabrics treated with phase change materials( PCMs)were used in multi-layered fabrics of the fire fighter protective clothing to study its effect on thermal protection. The thermal protective performance( TPP) of the multi-layered fabrics was measured by a TPP tester under flash fire. Results showed that the utilization of the PCM fabrics improved the thermal protective performance of the multi-layered fabrics. The fabric with a PCM add on of 41. 9% increased the thermal protection by 50. 6% and reduced the time to reach a second degree burn by 8. 4 s compared with the reference fabrics( without PCMs). The employment of the PCM fabrics also reduced the blackened areas on the inner layers. The PCM fabrics with higher PCM melting temperature could bring higher thermal protective performance.
文摘为分析热防护材料领域研究现状和未来发展趋势,文章采用信息可视化、网络分析的研究方法,以Web of Science(WOS)数据库及中国知网(CNKI)数据库中近30年(1993年1月—2023年6月)热防护材料相关的文献作为数据来源绘制可视化信息图谱,对发文量、发文国家地区和机构、研究方向、核心作者、关键词等元素逐一进行分析,剖析热防护材料研究领域的发展动态、研究热点及前沿趋势。结果显示,美国、中国为主要研究国家,在该领域居重要地位;LI J(Li Jun)、SONG G W(Song Guowen)、SU Y(Su Yun)、LU Y H(Lu Yehu)、王云仪、朱方龙等作者为该领域的核心作者,在热应激、热防护服的研究中具有重要影响力;热防护服的热防护性与传热机制、人体的热生理与热舒适为活跃的研究主题与研究热点;相变材料、气凝胶、形状记忆织物、蜂窝夹芯织物、三维间隔织物为当前的研究热点材料,新型热防护材料的研发、服装内部结构的优化是未来研究中有效应对热应激的解决方法,是兼顾热防护服的热防护与热舒适平衡的重要途径。
文摘In order to lighten the weight of the special vehicles and improve their mobility and flexibility, the weight of all subsystems of the whole vehicle must be reduced in the general planning. A fire explosion suppression system is an important subsystem for the self-protection of vehicle, protection of crews and safety of a vehicle. The performances of the special vehicles determine their survival ability and combat capability. The composite bottle is made of aluminum alloy with externally wrapped carbon fiber ; it has been proven by a large number of tests that the new type explosion suppression fire distinguisher made of such composite materials applied in the special vehicle has reliable performance, each of its technical indexes is higher or equal to that of a steel distinguisher, and the composites can also optimize the assembly structure of the bottle, and improve the reliability and corrosion resistance. Most important is that the composite materials can effectively lighten the weight of the fire explosion suppression system to reach the target of weight reduction of the subsystem in general planning.
