气凝胶隔热面料热防护性能测评

Evaluation on Thermal Protective Performance of Aerogel Fabrics

在隔热织物中填充气凝胶是提高织物热防护性能的有效途径。为探讨气凝胶隔热面料的热防护性能及其作为消防服隔热层使用的可行性,选取3种不同规格的气凝胶面料替换现役消防服的隔热层,通过热平板法分析评价不同组合面料的综合热防护性能,并耦合皮肤烧伤模型计算人体皮肤达到二度烧伤所需的时间。结果表明:相比传统消防服中的无纺毡隔热层,气凝胶面料具有更好的热防护性能;AG-T-Nomex系列面料受黏合剂耐热性的限制,在高温环境下容易发生变形,故不适合在消防服中使用。综合分析,AG-ST-POF的高温热防护性能更好,效果相对更稳定,有作为消防服隔热层面料使用的潜能。

Filling aerogel to the thermal insulation fabric is an effective way to improve the thermal protective performance of the fabric.To explore the thermal protective performance of aerogel thermal insulation fabrics and their feasibility as the thermal insulation layer of fire-fighting protective clothing,three different specifications of aerogel fabrics were chosen for analysis in this study.The comprehensive thermal protective performance of different composite fabrics was evaluated using hot plate method.The time for human skin to reach the second-degree burn was also calculated by coupling with skin burn model.The test and calculation results show that,aerogel fabrics can provide better thermal protection compared with the traditional non-woven felt.However,due to the heat resistance of the adhesive,the AG-T-Nomex is easy to deform in high temperature environment,thus it is not suitable for application in fire-fighting protective clothing.Based on the comprehensive analysis,AG-ST-POF performs better in thermal protection,and shows the potential to be used as a heat-insulating layer fabric for fire-fighting protective clothing.