Abstract

Ecofriendly bio-based alginate fibres are one of the inherently flame-retardant fibres. Can the incorporation of alginate fibres to viscose fibres enhance the flame retardancy and decrease the smoke release of prepared viscose/alginate blended nonwoven fabrics? Aiming to resolve this question, in the present work, viscose/alginate blended nonwoven fabrics were prepared in a green way without any pollution. Vertical flame test, cone calorimetry test and microscale combustion calorimetry results indicated that the incorporation of alginate fibres enhanced the flame retardancy and fire behaviors; what is more, the incorporation of alginate fibres seriously prolonged time to ignition. The results mentioned above indicate that alginate fibres can enhance the flame retardancy and inhibit the smoke release of viscose fibres. The incorporation of alginate fibres altered the thermal stability of viscose fibres and decreased the flammable gas emissions, thus improving the flame retardancy of viscose/alginate blended nonwoven fabrics. A conclusion can be made that inherently bio-based alginate fibres can be used as a kind of flame retardant to flame-retard viscose fibres.

Graphic abstract

The incorporation of alginate fibres improves the flame retardancy and suppresses the release of smoke for viscose/alginate blended nonwoven fabrics.

中文翻译：

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完全基于生物的防火粘胶/海藻酸酯混纺非织造布：热降解行为，可燃性和抑烟性

摘要

环保的生物基藻酸盐纤维是固有的阻燃纤维之一。将藻酸盐纤维掺入粘胶纤维中能否提高阻燃性并降低制备的粘胶/藻酸盐混纺非织造布的烟气排放？为了解决这个问题，在本工作中，以绿色方式制备粘胶/藻酸盐共混非织造布而没有任何污染。垂直火焰测试，锥形量热法测试和微尺度燃烧量热法结果表明，藻酸盐纤维的掺入增强了阻燃性和防火性能。此外，藻酸盐纤维的掺入严重延长了点火时间。上述结果表明藻酸盐纤维可增强阻燃性并抑制粘胶纤维的烟气释放。藻酸盐纤维的掺入改变了粘胶纤维的热稳定性并减少了可燃气体的排放，因此提高了粘胶/藻酸盐共混非织造织物的阻燃性。可以得出结论，固有的生物基藻酸盐纤维可以用作阻燃粘胶纤维的阻燃剂。

图形摘要

藻酸盐纤维的掺入改善了阻燃性并抑制了粘胶/藻酸盐混合的非织造织物的烟雾释放。