用于耐温除尘滤料的新型玻璃纤维增强涤纶纤维的力学性能测试分析

Test and Analysis of Mechanical Properties of New-type Glass Fiber-reinforced Polyester Fiber for Temperature-resistance Dust-extraction Filter Mateiral

研究一种新型的玻璃纤维增强涤纶纤维,可适用于与芳纶纤维等其他耐高温材料混纺针刺加工成非织造过滤材料。文章通过与PPS纤维对比,测试了该纤维的耐温氧化性能,并制备了相同规格的织物与PPS针刺织物进行耐化学腐蚀性能测试与对比。结果表明,新型增强纤维从200℃开始强度损失较明显,纤维手感发硬,收缩较明显;织物经60%H_2SO_4处理后的断裂强力保持率在91.98%,经40%NaOH处理后的强力保持率在91.86%,强力和断裂伸长率分别有所下降,耐化学腐蚀性良好。但基于纤维强度非常高,CV值小,纤维品质较均匀,可尝试少量与芳纶纤维、PPS纤维进行混纺增加强力,再通过后期坯布和成品的热收缩率测试评定。

This paper is intended to research a new-type glass fiber-reinforced polyester fiber,which is applicable to be processed into non-woven filter material together with other temperature-resistant materials（such as Aramid fiber）by blending and needling.In this paper,the heat-resistance and oxidation properties of the fiber were tested by comparing with that of PPS fiber,and fibers of the same specifications were prepared for comparing with PPS needle punched fabrics for chemical resistance.The results show that,above 200℃,the new-type reinforced fabric suffers from significant strength loss,feels stiff,and greatly shrinks;the breaking strength retention rate of the fabric treated with 60% H2SO4 reaches 91.98%,and that of the fabric treated with 40%NaOH is91.86%;the strength and elongation at break of the fabric both degrade after being treated,and the fabric has high chemical resistance.Considering the high fiber strength,small CV value,and the uniformity of quality,it is feasible to blend a little aramid fiber and PPS fiber to enhance the strength,which can be verified by means of test and evaluation of hot-shrinkage rate of gray fabric and finished product.