利用芳砜纶的阻燃性和金属丝的导电性制备了芳砜纶/不锈钢丝阻燃导电织物,并研究了织物的力学性能、阻燃性能和电磁屏蔽性能。结果表明:用细度为20S/2的芳砜纶做包覆材料纺成的包芯纱断裂强度和断裂伸长率最大,用该规格包芯纱制备的导电织物阻燃性能最好,燃烧损毁长度为56.34mm;织物的电磁屏蔽效能与织物层数、层压角度有关,在导电织物层压角度为0°/45°/90°/-45°/0°/45°和0°/90°/0°/90°/0°/90°且织物层数为4层时,3种导电织物的平均电磁屏蔽效能比单层时约提高9dB;当织物层数为5层及以上时,电磁屏蔽效能比单层时平均提高约15dB,电磁屏蔽效能显著增加。
The flame retardancy of polysufonamide and the electrical conductivity of metal filaments were used to prepare knitted fabrics with electromagnetic shielding and flame retardancy,and the mechanical properties,flame retardancy and electromagnetic shielding effectiveness of the fabrics were investigated.Results shown that the breaking strength and elongation at break of core spun yarn used polysulfonamide with the fineness of 20S/2 as cladding materials were all the largest.The flame retardant performance of the conductive fabric woven by this specification of core spun yarn was the best,and the burning damage length was 56.34mm.When the laminating angles of the fabric were 0°/45°/90°/-45°/0°/45° and 0°/90°/0°/90°/0°/90° and the laminating number was 4 layers,the average value of dB was about 9 higher than that of the single layer.When the laminating number was 5 layers or more,the dB value was increased by about 15dB compared with the single layer,and the electromagnetic shielding effect was significantly increased.
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基金资助
国家自然科学基金青年项目(51503145);高技术有机纤维四川省重点实验室开放课题基金(PLN2016-07)
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