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%。
A series of PF/TWRP-AO 2246 damping absorption composites were prepared from textile wasted rubber powder （TWRP）, hindered phenol 2,2＇-methylene-bis-（6-tert-butyl-methyl-phenol） （AO 2246） and single hollow polyamide fiber （PF）. The morphology and properties of composites were investigated by dynamic thermal analysis, scanning electron microscope, SW230 absorption machine and YG065 electronic fabric strength machine. The results show that polyamide fiber acts as an induced nuclear for the crystallizations of AO 2246, which are coated on the surface of fiber. The crystallization- fiber network structures are formed in composites, which forms ＂ the air flow＂. This improves the absorption properties of composites effectively. The fiber hinders the degree of freedom of macromolecular chain effectively, which reduces the damping loss. Crystallization-fiber network structures acts as framework for reinforcing. With the content of fiber increasing from 10% to 50% , its breaking stress ranges from 62.8 MPa to 128.8 MPa and its breaking strain ranges from 363.6% to 19%.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2017年第3期72-77,共6页
Journal of Textile Research
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)
关键词
纺织工业废胶粉
受阻酚
中空锦纶
结晶纤维网络结构
吸声性能
textile industry wasted rubber powder
2,2＇-methylene-bis- （ 6-tert-butyl-methyl-phenol ）
polyamide hollow fiber
crystal-fiber network structure
sound absorption performance
