胶原蛋白基木材胶黏剂的制备及表征  

Preparation and Characterization of Collagen based Wood Adhesive

作　　者：王学川 李妍[1,2] 任龙芳 王建华[3] 耿瑾 WANG Xue-chuan1,2,3, LI Yan1,2, REN Long-fang1,2, WANG Jian-hua3, GENG Jin 1,2(1. Key Laboratory of Leather Cleaner Production China National Light Industry, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science ＆ Technology, Xi＇ an 710021, Shaanxi, China; 2. National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science ＆ Technology,Xi＇an,710021 ,Shaanxi, China ; 3. Zhejiang Yongtai Paper （Group） Industry Co. ,Ltd. Hangzhou 311421, Zhejiang , Chin)

机构地区：[1]中国轻工业皮革清洁生产重点实验室、陕西科技大学轻工科学与工程学院,陕西西安710021 [2]轻化工程国家级实验教学示范中心、陕西科技大学,陕西西安710021 [3]浙江永泰纸业集团股份有限公司,浙江杭州311421

出　　处：《精细化工》2018年第4期689-694,720,共7页Fine Chemicals

基　　金：科技部863高技术项目(2011AA06A108)~~

摘　　要：以制革废弃物提取的胶原蛋白水解物为原料,端异氰酸酯基聚氨酯预聚体为交联剂,通过控制胶原蛋白水解物中氨基与聚氨酯预聚体中异氰酸酯基的物质的量之比合成了5种不同配方的木材胶黏剂,通过FTIR、XRD、TGA、GPC、固含量、耐水性等测定方法对其性能和结构进行了检测。结果表明：聚氨酯预聚体成功地改性了胶原蛋白水解物,经改性后的胶黏剂相对分子质量明显增大,结晶度明显降低,热稳定性显著提高,且当氨基与异氰酸酯基物质的量之比为1∶1,IPDI 0.05 mol,PEG-1000 0.0167 mol,DMPA 0.0144 mol,CG 2.8 g时,制备的胶黏剂耐水性最好,其湿态剪切强度可达1.08 MPa,满足GB/T9846.3—2004标准中Ⅲ类胶合板的使用要求（≥0.7 MPa）,另外,与其他配方相比,该胶黏剂的稳定性最佳,其固含量也最高,达到38.16%。Using collagen hydrolysate extracted from leather waste as raw material,monoisocyanateterminated polyurethane prepolymer as cross-linking agent,five different wood adhesive formulations were obtained through controlling the molar rate of amino group to isocyanate group. The properties and structures of additives were characterized by FTIR,XRD,TGA,GPC,solid content measurement and water resistance measurement. The results showed that the collagen hydrolysate was successfully modified by the polyurethane prepolymer. The relative molecular mass and thermal stability of modified adhesives obviously increased,while the crystallinity remarkablely reduced. Moreover,when the molar rate of molar rate of amino group to isocyanate group was 1∶1,IPDI 0. 05 mol,PEG-1000 0. 0167 mol,DMPA 0. 0144 mol,CG 2. 8 g,the additive exhibited the best water resistance,and its wet shear strength could reach 1. 08 MPa（≥0. 7 MPa）,which met the requirement of GB/T9846. 3—2004. In addition,the as-prepared additive had the best stability,and its solid content was the highest among all additives and reached 38. 16%.

关 键 词：胶原蛋白水解物 端异氰酸酯基聚氨酯预聚体 木材胶黏剂 剪切强度 粘合剂 

分 类 号：TQ431.4[化学工程]