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发明公开
CN105219323A 革用蓖麻油基聚氨酯-丙烯腈复合乳液粘合剂及其制备方法 有权 转让 许可

革用蓖麻油基聚氨酯-丙烯腈复合乳液粘合剂及其制备方法
摘要：
本发明涉及革用蓖麻油基聚氨酯-丙烯腈复合乳液粘合剂的制备方法。其制备方法是：将10wt％～20wt％的蓖麻油、30wt％～40wt％的聚四氢呋喃醚二醇、10wt％～30wt％的二异氰酸酯和0wt％～5wt％的催化剂混合，在N2气和50℃～100℃条件下反应1～6h，然后加入4wt％～8wt％的二羟甲基脂肪酸，在50℃～100℃条件下反应1h～6h，再用3wt％～6wt％的三乙胺中和，接着加入足够量的去离子水以3000r/min搅拌制得固含量为40％的聚氨酯乳液，再向所制得的聚氨酯乳液中加入10wt％～20wt％的丙烯腈和1wt％～6wt％的引发剂，在50℃～100℃条件下反应1h～6h，制得蓖麻油基聚氨酯-丙烯腈复合乳液粘合剂。本发明是一种利用可再生资源来制备环保型乳液粘合剂的有效方法。
摘要（英）：

The invention relates to a preparation method of a castor oil based polyurethane-acrylonitrile composite emulsion adhesive for leather. The preparation method comprises the following steps: mixing 10-20 wt% of castor oil, 30-40 wt% of polytetrahydrofuran glycol, 10-30 wt% of diisocyanate and 0-5 wt% of a catalyst, reacting for 1-6h in the presence of N2 and at a temperature of 50-100 DEG C, adding 4-8 wt% of bis (hydroxymethyl) tallate, reacting for 1-6h at a temperature of 50-100 DEG C, neutralizing the obtained object by using 3-6 wt% of triethylamine, adding an enough amount of deionized water, stirring the obtained mixture at a speed of 3000 r/min so as to obtain a polyurethane emulsion with a solid content of 40%, adding 10-20 wt% of acrylonitrile and 1-6 wt% of an initiator into the obtained polyurethane emulsion, and reacting for 1-6h at a temperature of 50-100 DEG C, so that the castor oil based polyurethane-acrylonitrile composite emulsion adhesive is obtained. The preparation method disclosed by the invention is an effective method for preparing environmental-friendly emulsion adhesives by using renewable resources.

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