聚丙烯酸钠(PAANa)预处理铬鞣废液回用于复鞣工序的研究  

Pretreatment of Chrome Tanning Wastewater with Sodium Polyacrylate (PAANa) and Reuse of the Wastewater in Retanning Process

作　　者：余洁[1] 胡长安[1] 周建飞[1] 兰云军[1] 

机构地区：[1]温州大学浙江省皮革工程实验室,浙江温州325027

出　　处：《皮革科学与工程》2014年第2期43-49,共7页Leather Science and Engineering

基　　金：国家支撑计划项目"500万标张/年制革园区清洁生产与废物循环利用的关键技术及示范"(2011BAC06B11);浙江省科技计划项目"非线性共聚物配体协同高吸收铬鞣与分段截流资源化利用技术的集成研究"(2011C23118)

摘　　要：将经过聚丙烯酸钠(PAANa)预处理后的铬鞣废液直接循环回用于复鞣工序中,通过考察革中和废液中Cr2O3含量、Cr2O3吸收率等指标优化铬鞣废液预处理和复鞣工艺参数,并与常规铬复鞣工艺相对比。实验结果表明:经过PAANa预处理后的铬鞣废液回用于复鞣工序,Cr与皮胶原结合牢固,不易洗脱,所加工的皮张各项理化指标与常规皮革相比无明显差异。The chrome tanning wastewater pretreatedwith sodium polyarylate （PAANa） wasreused inretanning process.The parametersof pretreatingand retanning processeswere optimizedin terms of Cr203 content inleather and in wastewater as well as Cr203 absorption rate. Traditional retanning process was also performed for comparison. The resuhsindicatedthat Cr complexesformed by PAANa and Cr in wastewater were firmly bound with collagen fibers during retanning process.The physical and chemical properties of the leather in this method were comparablewith the traditional leather.

关 键 词：聚丙烯酸钠 铬鞣废液 回用 复鞣 

分 类 号：TS543[轻工技术与工程—皮革化学与工程]