无甲醛三聚氰胺树脂的合成及性能研究  

Synthesis and Performance of Formaldehyde-free Melamine Resin

作　　者：桂琮皓 孙楠 张弛 周继博 GUI Conghao;SUN Nan;ZHANG Chi;ZHOU Jibo(College of Materials and Chemistry&Chemical Engineering,Chengdu University of Technology,Chengdu 610051,China;Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China;Department of Cardiovascular Surgery,Second Affiliated Hospital of Army Medical University,Chongqing 400037,China)

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610051 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065 [3]中国人民解放军陆军军医大学第二附属医院心血管外科,重庆400037

出　　处：《皮革科学与工程》2025年第3期49-56,共8页Leather Science and Engineering

摘　　要：传统三聚氰胺树脂复鞣剂存在甲醛过量释放问题,影响了其在制革中的应用。为解决该问题,以三聚氯氰(TCT)为交联剂,通过分步控温,依次将其与对氨基苯磺酸钠(SE)和水解胶原蛋白(CH)反应,制得了一类新型无甲醛三聚氰胺树脂复鞣剂TSP。红外光谱和核磁共振测试表明,TCT成功实现了对SE和CH的交联,制得的TSP1粒径为387.32 nm,且具有两性性质,等电点达到4.29。应用性能评价实验表明,蓝湿革对TSP1的吸收率为73.23%。使用TSP1复鞣后,牛皮对加脂剂的吸收率达到89.36%。复鞣后坯革的增厚率达到37.50%,且丰满性、纤维分散等物理感官性能方面具有明显优势。此外,TSP存放稳定性良好,且不存在游离甲醛释放问题,具有良好的应用前景。Traditional melamine resin retanning agents are limited by the excessive release of formaldehyde,which constrains their applicability in the leather tanning industry.To address this issue,a kind of novel formaldehyde-free melamine resin retanning agent TSP was synthesized by employing cyanuric chloride(TCT)as crosslinking agents,and subsequently reacting with sodium sulfanilate(SE)and hydrolyzed collagen(CH)through a controlled stepwise temperature process.Infrared spectroscopy and nuclear magnetic resonance analyses confirmed the successful crosslinking among SE,CH and TCT.The particle size of TSP1 was measured at 387.32 nm,with an isoelectric point determined to be 4.29,indicating its amphoteric nature.Application evaluation experiments revealed that the absorption rate of TSP1 was 73.23%.After retanned with TSP1,the absorption rate of fatliquoring agent by chrome-tanned leather increased to 89.36%.The thickening rate of leather retanned with TSP reached to 37.50%,and showing advantages in fullness,fiber dispersion and other physical properties.Importantly,TSP demonstrated excellent storage stability and did not release free formaldehyde,highlighting its potential for widespread application in the leather industry.

关 键 词：氨基树脂 三聚氰胺树脂 甲醛 复鞣 三聚氯氰 水解胶原蛋白 皮革 

分 类 号：TS529.2[轻工技术与工程—皮革化学与工程]