摘要
通过动、植物油脂与马来酸酐共聚,制备了耐水洗加脂剂前体,再用有机硅和高级脂肪醇酯化接枝改性,合成了耐水洗聚合物加脂剂,并对成革的耐水洗性能进行了研究。机理研究表明,该加脂剂的活性基团可以与铬盐形成稳定的络合物,是贡献耐水洗性的主要原因。二氯甲烷萃取物含量分析及水洗试验表明,加脂剂与皮纤维结合牢固,成革水洗5次前后面积变化率在1.5%以内,表现出良好的耐水洗尺寸稳定性。在应用过程中,将耐水洗加脂剂与不同复鞣填充剂搭配使用,发现与氨基树脂复鞣剂R5结合使用,显示了很好的协同效应,成革水洗5次前后面积变化率小于1.5%,色差小,撕裂强度变化率为0.28%,符合ITS标准。
A prepolymer was synthesized by free radical copolymerization with maleic anhydride and natural oil （animal and vegetable oil） as the raw materials, Then the above prepolymer was esterified by hydroxyl silicon and long-chain aliphatic alcohol and the washable polymer - base fatliquoring agent was obtained. The washability and the washable mechanism of final leather were investigated. The mechanism study indicates that the carboxyl groups of the fatliquoring agent and chromium salt can form steady complex compounds which contribute to the good washability of leather. Extraction experiments by dichloromethane or water were performed to examine the combining fastness between the fatliquoring agent and collagen fibers. It shows that only a little fatliquoring agent can be extracted and the area change of the leather washed by water for five times is less than 1.5 %. And the washability of final leather relates to the selected retanning agents, leather treated with melamine resin （R5） followed by polymer - base fatliquoring agent shows good cooperative effect. After being washed for five times, the area change of leather which was retanned by melamine resin （ R5 ） is also less than 1.5% , the cotour and ,tearing load of leather almost keep unchanged. There- fore, the washability of final leather meets the ITS（ Intertek Testing Services） criterion.
出处
《中国皮革》
CAS
北大核心
2007年第17期39-44,共6页
China Leather
关键词
聚合物加脂剂
耐水洗
制备
性能
polymer - base fatliquoring agent
washability
preparation
properties
