摘要
为提高聚丙烯纤维的生物相容性,实现漆酶在纤维上的固定化,以二苯甲酮(BP)为光引发剂,甲基丙烯酸甲酯(MMA)为接枝单体,采用紫外光辐射对聚丙烯纤维进行表面改性。通过对比改性前后聚丙烯纤维的红外光谱,证实MMA可通过紫外光引发接枝到聚丙烯纤维上。考察了接枝反应中光引发剂用量、反应单体体积分数和紫外线辐照时间对接枝率的影响,得到聚丙烯纤维改性的较优工艺条件:BP浓度为0.3 mol/L,MMA体积分数为40%,紫外辐照时间为60 min。改性纤维固定化的漆酶具备一定的脱色作用和操作稳定性,在证明接枝反应发生的同时,也通过漆酶的固定化实现了对聚丙烯纤维生物相容性的改善。
In order to improve the biocompatibility of PP fiber to immobilize laeease, photo-induced grafting of methyl methacrylate （MMA） onto PP fibre surface was carried out with benzophenone （BP） as initiator by UV radiation. Fourier transformed infrared spectra of modified PP fiber demonstrated that grafting reaction happened grafting The influence of initiator dosage, volume fraction of monomer and duration of UV radiation on the percentage was investigated. The preferred modification process of PP fiber was obtained as follows： concentration of benzophenone （BP） initiator, 0.3 mol/L; MMA volume fraction, 40% （v/v） ; irradiation time, 60 min. Immobilized laccase had some roles in decoloration and stable operation, and thereby the occurrence of grafting reaction was confirmed, while the biocompatibility of PP fiber was improved by enzyme immobilization.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2009年第10期80-84,共5页
Journal of Textile Research
基金
国家863计划项目(2008AA02Z03)
关键词
聚丙烯纤维
紫外光接枝改性
甲基丙烯酸甲酯
漆酶固定化
脱色
polypropylene（PP）
UV-induced modification
methyl methacrylate（MMA）
immobilization of laccase
decoloration
