以丙烯酸甲酯和甲基丙烯酸甲酯的共聚物(PAMMA)为原料,通过沉析法制备了沉析纤维并进行表征。将制得的PAMMA沉析纤维和超细涤纶(PET)浆粕纤维混合后,通过湿法非织造工艺得到了PET-PAMMA非织造材料,并探究沉析纤维含量对非织造材料的力学性能影响。结果表明,制得的沉析纤维呈扁平的薄膜状,比表面积达35.46m2/g。沉析纤维的加入对非织造材料的力学性能提升显著,在沉析纤维质量分数为20%时,非织造材料的拉伸断裂强力达22.26N/cm。
This paper used the copolymer of methyl acrylate and methyl methacrylate (PAMMA) as the raw material to prepare precipitated fibers through a precipitation method and characterize them.After mixing the prepared PAMMA precipitated fibers with ultra-fine polyester (PET) pulp fiber,a PET-PAMMA nonwoven material was obtained via a wet-laid nonwoven process,and the effect of precipitated fiber content on the mechanical properties of the nonwoven material was investigated.The results indicated that the produced precipitated fibers exhibited a flat,film-like structure,with a specific surface area of 35.46m2/g.The addition of precipitated fibers significantly enhanced the mechanical properties of the nonwoven material,and the tensile break strength of the nonwoven material reached 22.26N/cm when the precipitated fiber mass fraction was 20%.
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