无铬鞣废革屑胶原提取物与PBAT共混成膜性能

doi:10.19677/j.issn.1004-7964.2024.01.002

皮革科学与工程 ›› 2024, Vol. 34 ›› Issue (1): 8-17.doi: 10.19677/j.issn.1004-7964.2024.01.002

无铬鞣废革屑胶原提取物与PBAT共混成膜性能

侯振强¹, 张辉^1,*, 强西怀^1,2

1.陕西科技大学轻工科学与工程学院,陕西西安 710021;
2.轻化工程国家级实验教学示范中心,陕西西安 710021

收稿日期:2023-07-07 修回日期:2023-09-19 接受日期:2023-09-25 出版日期:2024-02-01 上线日期:2024-01-08
通讯作者: *张辉（1976-）,男,副教授。研究方向：清洁化制革生产。E-mail：zhhui@sust.edu.cn。
作者简介:侯振强（1998-）,男,硕士研究生。研究方向：无铬鞣胶原提取及利用。E-mail：2502510115@qq.com。
基金资助:
陕西科技大学自然科学研究基金（2017BJ-59）

Film-Forming Properties of the Mixture of PBAT and Collagen Extracted from Chrome-free Tanning Waste Leather Chips

HOU Zhenqiang¹, ZHANG Hui^1,*, QIANG Xihuai^1,2

1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China;
2. National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi'an 710021, China

Received:2023-07-07 Revised:2023-09-19 Accepted:2023-09-25 Online:2024-02-01 Published:2024-01-08

摘要/Abstract

摘要： 利用稀酸法分别从沸石、TWS鞣废革屑中提取胶原,以提取率、特性粘数等为指标优化提取工艺,对纯化后的胶原水解物进行表征。随后选取TWS鞣废革屑提取的胶原水解物（C-TWS）与聚己二酸对苯二甲酸丁二醇酯（PBAT）共混成膜,探究二者的成膜性能。结果表明：两种胶原水解物均含有17种氨基酸,元素组成以C、N、O为主,矿物盐含量低,是优质的生物可降解蛋白基材。PBAT/C-TWS共混过程为简单的物理共混,C-TWS组分含量的增大使复合膜的水蒸气透过量提高43.05%~182.5%。C-TWS组分含量为30%时,薄膜的最大热降解温度由405.4 ℃降低至386.5 ℃,所有比例共混膜都具有良好的透光率,共混体系中C-TWS组分含量小于50%时具有较好的相容性。

关键词: 固体废弃物, 无铬鞣废弃物, 聚己二酸对苯二甲酸丁二醇酯, 共混膜

Abstract: Collagen was extracted from zeolite and TWS tanned waste leather chips using the dilute acid method, and the extraction process was optimized using the extraction rate and characteristic viscosity number as indexes, and the purified collagen hydrolysates were characterized. Subsequently, the collagen hydrolysate extracted from TWS-tanned waste leather chips (C-TWS) was blended with polybutylene terephthalate (PBAT) to form films, and the film-forming properties of the mixture were investigated. Results show that the two collagen hydrolysates contained 17 amino acids, and the elemental composition was dominated by C, N, and O with low mineral salt content, and they are high-quality biodegradable protein substrates. The blending process of PBAT/C-TWS was a simple physical blending one, and the increase of C-TWS content could lead to the increase by 43.05%-182.5% in the water vapor transmission rate of the composite film. When the content of C-TWS component was 30%, the maximum thermal degradation temperature of the resulting film was reduced from 405.4 ℃ to 386.5 ℃, and all the proportions of the blended films had good light transmittance. The blended system had better compatibility when the content of C-TWS component was less than 50%.

Key words: solid waste, chrome-free tanning waste, polybutylene terephthalate adipate, blend film

中图分类号:

X794

侯振强, 张辉, 强西怀. 无铬鞣废革屑胶原提取物与PBAT共混成膜性能[J]. 皮革科学与工程, 2024, 34(1): 8-17.

HOU Zhenqiang, ZHANG Hui, QIANG Xihuai. Film-Forming Properties of the Mixture of PBAT and Collagen Extracted from Chrome-free Tanning Waste Leather Chips[J]. Leather Science and Engineering, 2024, 34(1): 8-17.

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无铬鞣废革屑胶原提取物与PBAT共混成膜性能

Film-Forming Properties of the Mixture of PBAT and Collagen Extracted from Chrome-free Tanning Waste Leather Chips

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