热重示差扫描量热法分析鞣剂处理皮革热稳定性及表征  

Analysis of thermal stability and characterization of tanned leather by thermogravimetry differential scanning calorimetry

作　　者：朱红梅 Zhu Hongmei(Fujian No.2 Light Industry School)

机构地区：[1]福建第二轻工业学校

出　　处：《皮革制作与环保科技》2020年第3期27-30,共4页Leather Manufacture and Environmental Technology

摘　　要：热重分析(加热速率为10℃/min;流量60 ml/min)时,最大的损失率随栗子或quebracho浓度的增加而降低。差示扫描量热法的结果表明,与栗子鞣制的皮革相比,去斑栎鞣制的皮革具有更高的耐热性。植物鞣剂的存在改善了皮革的热稳定性。此外,结果表明,鞣制了20%和25%栗子的皮革可产生几乎相同的热稳定性。Quebracho小牛皮比栗子小牛皮更耐高温。in TGA(heating rate 10℃/min;flow rate 60 ml/min),the maximum loss rate decreased with the increase of chestnut or quebracho concentration.The results of DSC showed that compared with chestnut tanned leather,the leather tanned by Quercus deltoides had higher heat resistance.The existence of vegetable tanning agent improves the thermal stability of leather.In addition,the results show that the tanned leather with 20%and 25%chestnuts can produce almost the same thermal stability.Quebracho calfskin is more heat resistant than chestnut calfskin.

关 键 词：再生聚氨酯 皮革废料 生物降解 复合材料 

分 类 号：TS5[轻工技术与工程—皮革化学与工程]