水培-CO2释放测定法评价皮革的生物降解性

doi:10.19677/j.issn.1004-7964.2022.03.012

皮革科学与工程 ›› 2022, Vol. 32 ›› Issue (3): 65-69.doi: 10.19677/j.issn.1004-7964.2022.03.012

水培-CO₂释放测定法评价皮革的生物降解性

王圳¹, 刘洵志¹, 张雨鑫¹, 王亚楠^1,2,*, 石碧^1,2

1.四川大学制革清洁技术国家工程实验室,四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065

收稿日期:2021-12-02 出版日期:2022-06-28 上线日期:2022-05-16
通讯作者: ^*王亚楠（1986-）,男,教授,wangyanan@scu.edu.cn, 主要从事制革化学、制革清洁技术研究。
作者简介:王圳（1997-）,男,硕士生。
基金资助:
德阳市产学研合作科技成果转化项目（2020CKC001）; 四川省“天府万人计划”天府科技菁英项目

Evaluation of Biodegradability of Leather in an Aqueous Medium by Analysis of Evolved CO₂

WANG Zhen¹, LIU Xunzhi¹, ZHANG Yuxin¹, WANG Yanan^1,2,*, SHI Bi^1,2

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. Key Laboratory of Leather Chemistry and Engineering (Sichuan University),Ministry of Education, Chengdu 610065, China

Received:2021-12-02 Published:2022-06-28 Online:2022-05-16

摘要/Abstract

摘要： 生物降解性是评价皮革生态性的重要指标。以多种鞣制皮革为测试对象,采用ISO 20136标准——水培-CO₂释放测定法评价其生物降解性,并优化了降解实验条件。结果表明,参比材料可使用去酸皮替代I型胶原。当样品-污泥质量比为1∶3,样品质量浓度为0.2~0.6 g/L,降解温度为30 ℃时,降解20 d即可判断不同皮革的生物降解性差异。研究所用无铬鞣革的生物降解性均优于铬鞣革。该生物降解性测定方法的广泛应用可望为皮革行业的绿色可持续发展提供支撑。

关键词: 皮革, 生物降解性, 鞣制, 无铬鞣, 生态性评价

Abstract: Biodegradability is a crucial indicator to evaluate the ecological properties of leather. Herein, a variety of tanned leathers were employed as the test objects, and their biodegradability in an aqueous medium was determined by the ISO 20136 standard by analysis of evolved CO₂. The degradation conditions were optimized. The results showed that the depickled hide could replace type I collagen as the reference material. When the sample-to-activated sludge mass ratio was 1∶3, the sample mass concentration was 0.2-0.6 g/L, and the degradation temperature was 30 ℃, the difference between the biodegradability of various types of leather could be observed after degradation for 20 days. The biodegradability of the chrome-free tanned leathers used in this study was better than that of chrome tanned leather. The widespread application of this biodegradability determination method is expected to provide support for the green and sustainable development of leather industry.

Key words: leather, biodegradability, tanning, chrome-free tanning, ecological evaluation

中图分类号:

X703.1
TS543

王圳, 刘洵志, 张雨鑫, 王亚楠, 石碧. 水培-CO₂释放测定法评价皮革的生物降解性[J]. 皮革科学与工程, 2022, 32(3): 65-69.

WANG Zhen, LIU Xunzhi, ZHANG Yuxin, WANG Yanan, SHI Bi. Evaluation of Biodegradability of Leather in an Aqueous Medium by Analysis of Evolved CO₂[J]. Leather Science and Engineering, 2022, 32(3): 65-69.

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水培-CO₂释放测定法评价皮革的生物降解性

Evaluation of Biodegradability of Leather in an Aqueous Medium by Analysis of Evolved CO₂

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