双氰胺改性胶原蛋白复鞣填充剂的研究  

Dicyandiamide Modified Collagen Retanning and Filling Agent

作　　者：兰云军[1] 庞晓燕[2] 毕东亮[3] 丁志文[2] 陈永芳[2] 

机构地区：[1]温州大学化学与材料工程学院,浙江温州325027 [2]中国皮革和制鞋工业研究院,北京100016 [3]中国皮革和制鞋工业研究院温州研究所,浙江温州325000

出　　处：《中国皮革》2013年第5期32-36,共5页China Leather

基　　金：科技部技术开发项目(2008EG11101);863计划项目(2011AA06A108);温州大学开放基金项目(100061200117)

摘　　要：以双氰胺、甲醛、硫代硫酸钠和胶原蛋白为主要原料,合成了一种新型的低游离甲醛含量的双氰胺改性胶原蛋白复鞣填充剂(DPR)。对所得产品进行了红外谱图表征,结果显示产品双氰胺和胶原蛋白发生了化学反应;并将所得的产品应用于皮革复鞣填充,对复鞣后成革的各项性能进行测定,结果显示复鞣后成革丰满柔软,粒面紧实,复鞣后革平均增厚率为11.51%,染料上染率为98.7%,抗张强度为25.31N·mm-2,柔软度为6.53,透水汽性为7.0mg·cm-2·h-1,其综合性能优于R6产品。Dicyandiamide modified collagen retanning and filling agent （DPR） with low content of free formaldehyde was syn- thesized by dicyandiamide, form.aldehyde, sodium thiosulfate and collagen. The product was analyzed by infrared spectrum. The results show chemical reaction happenes between dicyandiamide and collagen. The product was used in leather retanning and fill- ing processing. Properties of leather retanned and filled by the product were determined. The results show leather is given full, soft hand feeling and tightening grain, the average thickening rate is 11.51% of retaned leather, the dye uptake rate is 98.7%, the tensile strength is 25.31N · mm^-2, softness is 6. 53, water vapor permeability is 7. 0mg · cm^-2 · h^-1. The comprehensive performance is better than R6.

关 键 词：胶原蛋白 双氰胺 游离甲醛 复鞣填充剂 

分 类 号：X794[环境科学与工程—环境工程]