摘要
与碱减量相比,脂肪酶改性涤纶的条件更加温和,处理后的废水更易生化处理。探究了工业脂肪酶的酶学性质,并将其应用于涤纶的亲水改性。通过浸渍和浸轧两种方法,探究了酶用量、处理时间、温度和p H等对涤纶脂肪酶改性效果的影响。结果表明,工业脂肪酶的最适反应温度为60℃,最适p H=8.0;该脂肪酶与非离子型表面活性剂JFC具有良好的协同作用,可用于涤纶的亲水改性。在应用研究方面,浸渍和浸轧两种工艺,脂肪酶涤纶改性的最佳温度在60℃左右,最佳p H在7.0~8.0,随着酶用量的增加以及处理时间的延长,脂肪酶对涤纶的处理效果逐渐提高。
Compared with alkali peeling, the lipase modification of polyester fiber can be carried out under the mild condition and the wastewater is easy to be treated by the biochemical process. The enzymatic property of industrial lipase was investigated, and it was applied to modify the hydrophilic property of polyester. The polyester fabric was treated by two processes of dipping and padding. The effects of enzyme dosage, time, temperature, pH on the lipase modification of polyester fabric were examined. The results showed that the optimal reaction temperature of industrial lipase was 60 ℃ and the optimum pH was 8.0. Furthermore, the lipase and the nonionic surfactant JFC had good synergy. In the application research of both dipping and padding processes, the optimal temperature of the lipase modified polyester was 60 ℃ and the optimum pH was 7.0-8.0. With the increase of the enzyme dosage and the extension of time, the treatment efficiency of the lipase modification of polyester improved gradually.
出处
《染整技术》
CAS
北大核心
2017年第4期37-43,共7页
Textile Dyeing and Finishing Journal
关键词
脂肪酶
涤纶
亲水性
对苯二甲酸
lipase
polyester
hydrophilic property
terephthalic acid
