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Meta-aramid 나노섬유의 전기방사 공정인자들이 물성과 투습성에 미치는 영향
박영신,남영식,이민성,박원호,Park, Young Shin,Nam, Young Sik,Lee, Min Sung,Park, Won Ho 한국섬유공학회 2012 한국섬유공학회지 Vol.49 No.4
Meta-aramid nanofibers were prepared by the electrospinning process. In this study, electrospun meta-aramid nanofiber webs were prepared with various velocity ratios of a collector drum, the fiber diameter and thickness of electrospun nanofiber webs, and then compared with values of tensile properties and breathable water-resistance. The meta-aramid nanofiber webs were analyzed by field-emission scanning electron microscopy, a tensile tester, water vapor permeability, an X-ray diffractometer and thermogravimetric analysis. The diameter of meta-aramid nanofibers ranging from 165 to 252 nm was obtained by electospinning. The tenacity, young's modulus and crystallinity of meta-aramid webs were decreased by increasing the diameter of meta-aramid nanofibers, however, water vapor permeability increased. It was confirmed that the breathable water-resistance of meta-aramid nanofiber webs were similar to that of chemical treated PTFE film.
김기준,김도희,김종범,주정균,유세은 국방기술품질원 2020 국방품질연구논집 Vol.2 No.2
Waterproofness and water vapor transport properties are essential performance to protect body temperature of combatants. In the Korean defense specification, water resistance is evaluated to prevent water penetration of moisture by rain or snow. However, this test method is used to footwear and have been judged to be inadequate on clothing. Through research on improvement of test method, “KS K 0593 Determination of water resistance of fabrics after flexural treatment under low temperature” was established. Thus, in this study, by applying the improved test method, the cold resistance performance of the military moisture-permeable breathing fabric was evaluated and the performance level of each item was compared.