Gholamreza Farzan, Song Guowen
Human Ecology Department, University of Alberta, Human Ecology Building, Edmonton, Alberta T6G 2N1, Canada.
Ann Occup Hyg. 2013 Jul;57(6):805-22. doi: 10.1093/annhyg/met028. Epub 2013 Jun 25.
This study provides an understanding of heat and mass transfer through materials exposed to hot liquid splash, a relatively unexplored hazard in the safety clothing industry. Selected fabrics and layered systems were exposed to three hot liquids to study the effects of hot liquids and configuration. To explore the energy transfer mechanisms, a modified apparatus (based on ASTM F 2701-08) was developed to assess the protection performance provided by a fabric when exposed to a hot liquid. The modified test method allows measurement of the energy absorbed by the sensor, and with the use of a skin model, the time required to produce a second-degree burn injury was predicted. The preliminary testing demonstrated that mass transfer of the hot liquid through the fabric is the main factor contributing to burn injury. Key factors that determine the level of protection that a fabric system provides are summarized.
本研究旨在了解热液飞溅作用于材料时的传热传质情况，这是安全服装行业中一个相对未被探索的危害。选择了织物和分层系统，使其暴露于三种热液中，以研究热液和结构的影响。为了探究能量传递机制，开发了一种改进装置（基于ASTM F 2701-08），用于评估织物在暴露于热液时提供的防护性能。改进后的测试方法能够测量传感器吸收的能量，并利用皮肤模型预测产生二度烧伤所需的时间。初步测试表明，热液透过织物的传质是导致烧伤的主要因素。总结了决定织物系统防护水平的关键因素。
