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近年来由于受成本因素的严重影响,目前市售的鞋用聚氨酯胶(PU胶)90%以上均为生产厂家自行合成,传统的溶剂型鞋用聚氨酯胶已几乎全部退出市场。介绍了一种鞋用聚氨酯胶的简捷生产工艺,具有生产流程简单、操作易于控制、能耗小、设备要求不复杂、符合新的国家环保标准、生产的产品成本低并且投资较小等优点。生产出的鞋用聚氨酯胶初黏力强、涂布性好、不曳丝、耐黄变、开放时间合理,具有较好的耐热性和储存稳定性。
In recent years due to the serious cost factors, the current commercially available shoe polyurethane adhesive (PU glue) more than 90% are synthesized by the manufacturer, the traditional solvent-based shoe polyurethane rubber has almost all been out of the market. This paper introduces a simple and convenient production process of polyurethane rubber for shoes. It has the advantages of simple production process, easy operation and control, low energy consumption, uncomplicated equipment requirements, compliance with new national environmental standards, low cost of production and small investment. Production of shoes with polyurethane adhesive early strong adhesive force, good coating, not dragging, yellowing resistance, open time is reasonable, has good heat resistance and storage stability.