一种聚羧酸型助剂的合成与应用研究

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• 英文论文题名：Synthesis and application of A polycarboxylate auxiliary agent
• 论文作者：徐佳丽 ; 罗建勋
• 英文论文作者：XU Jia-li ; LUO Jian-xun ; Department of Light Chemistry Engineering ; College of Material & Textile Engineering ; Jiaxing University
• 年：2016
• 作者机构：嘉兴学院材料与纺织工程学院轻化工程系;
• 论文关键词：聚羧酸型助剂 ; 吸收率 ; 废铬液 ; 复鞣
• 英文论文关键词：polycarboxylate auxiliary agent ; absorptivity ; the chrome tanning effluent ; retanning
• 会议召开时间：2016-07-27
• 会议录名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会摘要集
• 英文会议录名称：Abstracts of 2016 the 11th National Conference on Leather Chemicals & 21st Annual Convention of China Leather Science and Technology Commission
• 语种：中文
• 分类号：TS529.1
• 学会代码：ZGHG
• 会议名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会
• 会议地点：中国山东济南
• 主办单位：中国皮革协会技术委员会、中国皮革协会皮革化工专业委员会、中国化工学会精细化工专业委员会
• 学会名称：中国化工学会
• 页数：1
• 文件大小：61k
• 原文格式：O
• 会议级别：全国

摘要

为提高裸皮对铬鞣剂的吸收率并可在复鞣中起到复鞣填充作用,采用对(甲基)丙烯酸、马来酸酐、衣康酸等单体自由基聚合制得一种聚羧酸型助剂。对聚合条件、单体比例、引发剂用量,设计3因素正交实验,得出最佳聚合条件为n((甲基)丙烯酸):n(马来酸酐):n(衣康酸)=1:0.3:0.2,w(过硫酸铵)=1.5%,反应温度80~85℃,反应时间180 min。红外光谱表明产物结构中含有较多的羧基。当聚羧酸型助剂的用量为1.5%,裸皮对铬的吸收率为94.4%,废铬液中Cr_2O_3的含量为350 mg/L,革呈略深湖蓝色、粒面平细。用于削匀绵羊蓝湿革复鞣时,其最佳用量为4%,革的增厚率为17%,成革丰满、紧实。
In order to improve the absorption rate of the pelt to chrome tanning agent and obtain retanning and filling effect in the retanning process,a tercopolymer of acrylic acid,maleic anhydride and itaconic acid were prepared by free radical polymerization.Through orthogonal experiment and application of polymerization conditions,monomer ratio and initiator dosage,the results showed that the optimum polymerization condition was determined as follows:n(methacrylic acid or acrylic acid):n(maleic anhydride):n(itaconic acid) =1:0.3:0.2,w(ammonium persulfate) = 1.5%,polymerization temperature80~85 ℃,reaction time 180 min.Infrared spectrum test results show that it contains more carboxyl group.Application results show that the absorptivity,content of Cr_2O_3 in chrome tanning effluent is 94.4%,350mg/L respectively and the color and grain of the wet blue was slightly dark blue,and fine respectively when the optimum amount of the polycarboxylic acid auxiliary was 1.5%in the absorption of chromium.In addition,the thickening rate is 17%with a full,firm leather when the best amount was 4%during the retanning for shaving sheepskin wet blue

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