皮革科学与工程2024，Vol.34Issue(1)：8-17,10.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
Film-Forming Properties of the Mixture of PBAT and Collagen Extracted from Chrome-free Tanning Waste Leather Chips
摘要
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％.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Key words
solid waste/chrome-free tanning waste/polybutylene terephthalate adipate/blend film分类
资源环境引用本文复制引用
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):8-17,10.基金项目
陕西科技大学自然科学研究基金(2017BJ-59) （2017BJ-59）
