摘要： 用聚四氢呋喃二醇(PTMG)、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)为预聚物反应单体,以2-[(2-氨乙基)氨基]乙磺酸钠(A95)、水合肼为后扩链剂,利用预聚体分散法制备水性聚氨酯(WPU)消光树脂分散体,探讨了扩链剂种类及用量、R值等对WPU膜光泽的影响。
关键词:
水性聚氨酯,
扩链剂,
低光泽度
Abstract: In this paper, a low gloss waterborne polyurethane wPU) dispersion was prepared by prepolymer dispersing process with isophorone diisocyanate IPDi) and polytetraethylene glycol (PTMG) as main materials, and dimethylol propionic acid (DMPA) as hydrophilic chain extender, and 2-[(2-aminoethyl)] ethyl sodium sulfonate( A95) and hydrazine hydrate as small molecule chain extender. The influence of varieties and amount of chain tenders value and A95 content on WPU film gloss were discussed.
Key words:
waterborne polyurethane,
chain-extender,
low gloss
李建军, 曾文波, 郑 雯, 彭晓宏, 曹喜民, 张雅胜, 关仲翔. 水性聚氨酯消光树脂结构与性能的研究[J]. 涂料工业, 2013, 43(10): 16-21.
Li Jianjun, Zeng wenbo, Zheng Wen, Peng Xiaohong, Cao Ximin, Zhang Yasheng, Guan Zhongxiang. Structure and Properties of Low Gloss Waterborne Polyurethane[J]. Paint & Coatings Industry, 2013, 43(10): 16-21.