氧化-磷酸酯化亚麻油加脂剂的制备及其作用机理  

Preparation and mechanism of oxidizing-phosphate linseed oil fatliquoring agents

作　　者：王琦超 沈一丁[1,2] 强西怀 杨凯 朱辉 王倩[1,2] WANG Qichao;SHEN Yiding;QIANG Xihuai;YANG Kai;ZHU Hui;WANG Qian(College of Chemistry and Chemical Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;Shaanxi Key Laboratory of Light Chemical Additives,Shaanxi University of Science&Technology,Xian 710021,Shaanxi,China;School of Light Industry Science and Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China)

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021 [3]陕西科技大学轻工科学与工程学院,陕西西安710021

出　　处：《精细化工》2020年第9期1904-1910,共7页Fine Chemicals

基　　金：陕西省教育厅重点实验室科研计划项目(2010JS058)。

摘　　要：以亚麻油、过氧化氢为原料,合成了环氧值分别为1.16、1.52和2.32mmol/g的3种环氧亚麻油,再与定量的磷酸进行酯化反应,合成了3种结合型氧化-磷酸酯亚麻油皮革加脂剂LCF-P1、LCF-P2和LCF-P3。将其应用于皮革加脂,探究了不同环氧化程度对氧化-磷酸酯化皮革加脂剂的加脂性能影响,并与市售磷酸酯加脂剂进行了加脂效果对比。用SEM观察了皮革加脂前后断面胶原纤维形貌变化。结果表明,环氧值1.52mmol/g的加脂剂LCF-P2表现出良好的加脂性能,加脂后坯革柔软度达10 mm,抗张强度为35.91 N/mm2,撕裂强度为49.56N/mm,皮革增厚率为24.36%。加脂剂LCF-P2在皮革增厚率、机械强度提高方面略优于市售磷酸酯加脂剂。Three epoxy linseed oils with epoxy values of 1.16, 1.52 and 2.32 mmol/g were synthesized firstly using linseed oil and hydrogen peroxide as raw materials. And then they reacted with quantitative phosphoric acid to synthesize three combined oxidized-phosphate linseed oil leather fatliquors LCF-P1, LCF-P2 and LCF-P3. LCF-P1, LCF-P2 and LCF-P3 were applied to leather fatliquoring. The effect of different epoxidation degree on fatliquoring performance of oxidized phosphate linseed oil fatliquor was studied, and the fatliquoring effect was compared with that of commercial phosphated fatliquor. SEM was used to observe the morphology of collagen fibers in the cross section of leather before and after fatliquoring. The results showed that LCF-P2 with an epoxy value of 1.52 mmol/g, exhibited good fatliquoring performance. After fatliquoring, the softness of grey leather reached 10 mm, the tensile strength was 35.91 N/mm2, the tear strength was 49.56 N/mm and the thickening rate of leather was 24.36%. LCF-P2 had better leather thickening rate, mechanical strength improvement than commercial phosphated fatliquor.

关 键 词：亚麻油 环氧化 磷酸酯化 加脂性能 增厚率 

分 类 号：TS529.4[轻工技术与工程—皮革化学与工程]