锦纶对纺织废胶-受阻酚微观形态与性能的影响

发布时间：2018-05-07 12:09

本文选题：纺织工业废胶粉 + 受阻酚　；参考：《纺织学报》2017年03期

【摘要】：为开发一种集阻尼、吸声性能为一体的多功能复合材料,利用纺织工业废胶粉(TWRP)、受阻酚(AO 2246)和单孔中空锦纶(PF)制备了一系列的PF/TWRP-AO 2246三元阻尼吸声复合材料。通过动态热分析、扫描电子显微镜、吸声测试、织物强力测试等表征手段对复合材料的微观形态和性能进行分析。结果表明:锦纶充当了AO 2246的结晶诱导核,使AO 2246形成包覆于纤维表面的结晶,从而在复合材料中出现了结晶纤维网络结构,形成"贯穿的空气层",改善了复合材料的吸声性能;加入锦纶使复合材料的阻尼损耗下降;结晶纤维网络结构充当了复合材料中的骨架,起到了增强作用。当纤维含量从10%增加到50%时,其最大断裂应力从62.8 MPa增至128.8 MPa,断裂应变从363.6%降至19%。
[Abstract]:In order to develop a kind of multifunctional composite with damping and sound absorption properties, a series of PF/TWRP-AO 2246 ternary damping sound absorbing composites were prepared by using the waste rubber powder of textile industry, TWRP, hindered phenol (AO2246) and monoporous hollow polyamide fiber (PF/TWRP-AO). The microstructure and properties of the composites were analyzed by means of dynamic thermal analysis, scanning electron microscope, sound absorption test and fabric strength test. The results show that the nylon fiber acts as the crystal inducing nucleus of AO 2246 and makes AO 2246 crystallize on the surface of the fiber, thus the crystalline fiber network structure appears in the composite. A "penetrating air layer" was formed to improve the sound absorption properties of the composites; the damping loss of the composites was reduced by adding nylon; and the crystalline fiber network structure acted as the skeleton of the composites and played a strengthening role. When the fiber content increased from 10% to 50%, the maximum fracture stress increased from 62.8 MPa to 128.8 MPA, and the fracture strain decreased from 363.6% to 19.6%.
【作者单位】：江苏工程职业技术学院纺染工程学院;江苏省先进纺织工程中心;
【基金】：江苏南通市科技局应用研究资助项目(BK2013064) 中国纺织工业联合会科技指导性项目(2013115) 江苏省青蓝工程资助项目(苏教师[2014]23号) 江苏省高校优秀科技团队资助项目(苏教科[2013]10号) 江苏高校品牌专业建设工程资助项目(PPZY2015A093)
【分类号】：TB33

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