文献类型：期刊文献

英文题名：Insight into in situ enzymatic transesterification modification of polyethylene terephthalate fibers with polyethylene glycol

作者：Liu, Wenjing[1];Qiang, Kexin[2];Ye, Peipei[1];Li, Xin[1];Zhao, Xiaoman[1,3,4];Hong, Jianhan[1,3,4];Duan, Yafeng[5]

机构：[1]Shaoxing Univ, Sch Text Sci & Engn, Shaoxing 312000, Peoples R China;[2]Hangzhou Meigao Huayi Chem Ind Co Ltd, Hangzhou 311200, Peoples R China;[3]Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China;[4]Shaoxing Univ, Shaoxing Key Lab High Performance Fibers & Prod, Shaoxing 312000, Peoples R China;[5]Shaoxing Keqiao Printing & Dyeing Ind Engineer Col, Shaoxing 312030, Peoples R China

年份：2024

卷号：146

起止页码：140

外文期刊名：PROCESS BIOCHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:001276427500001)、、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (No. 52300167), the Zhejiang Province Public Welfare Technology Application Research Project (No. LGJ21E030001), the Exploratory Public Welfare Project of the Zhejiang Provincial Natural Science Foundation of China (No. LTGY24E030001), the Shaoxing City Basic Public Welfare Plan Project (key project) (No. 2022A11004), the Key Industrial Technology Research Projects of Keqiao District (2023JBGS110) and the China Textile Industry Federation Science and Technology Guidance Project (No. 2021005). This work was also funded by the Project for Research Start-up at Shaoxing University (No. 20195027), the National College Students Innovation and Entrepreneurship Training Program (No. 202010349042), the Shaoxing University Scientific Research Foundation Project for College Students (No. 202110349178xj), and the Shaoxing University Scientific Research Foundation Project for Graduate Students (No. Y20230306).

语种：英文

外文关键词：Polyethylene terephthalate (PET); in situ transesterification; Lipase from Aspergillus oryzae; Hydrophilic; Polyethylene glycol (PEG)

外文摘要：Polyethylene terephthalate (PET) fabric was enzymatically modified with polyethylene glycol (PEG). Lipase from Aspergillus oryzae was used as a catalyst. The wetting behavior of the modified PET fabric was characterized by the water contact angle, water adsorption dynamics and moisture regain. The initial water contact angle of the modified fabric decreased from 129.3 degrees to 74.9 degrees. The water absorption dynamics results indicated that the equilibrium water absorption amount of the modified fabric was approximately 10 times greater than that of the untreated sample. The initial absorption rate (Vinit) of the modified fabric was almost 30 times higher than that of the untreated fabric. The moisture regain reached 3.52 % after modification. Scanning electron microscopy revealed granular and sheet coatings on the surface of the modified fabric. Chemical linkage of PEG onto the PET fibers was confirmed by attenuated total reflection-Fourier transform infrared spectroscopy. The modification had no significant effect on the thermal properties of the PET fabrics according to the thermogravimetric curve and differential scanning calorimetry results. The mechanical properties of the modified fabric were slightly improved. Therefore, in situ enzymatic transesterification between PET and PEG could be a potential novel modification approach for adding value to PET fiber textiles.