摘要
为提高聚醚型聚氨酯材料耐磨性能,在其分子链上引入端羟基有机硅进行共聚改性,所合成的改性聚氨酯/有机硅材料的相容性较好,然后将其制成标准合成革样品进行威士伯耐磨性测试,目的是探索引入低表面能链段方法改进耐磨可行性。实验结果表明：所改性的合成革聚氨酯面层树脂与改性前相比,其100%模量变低,制得的合成革手感更为柔软;合成革的威士伯耐磨性显著提升,明显优于采用聚碳酸酯二醇合成聚氨酯面层树脂。因此,端羟基有机硅可提高聚醚型聚氨酯的耐磨性能,并可增强其柔性。
In order to improve the abrasion resistance of the polyether-based polyurethane materials,the hydroxyl-terminated organo-silicone was introduced into their molecular chain for copolymerization modification, and the synthesized modified polyurethane/organo-silicone material possesses good compatibility. Subsequently the standard synthetic leather sample was prepared with such material to conduct the Wyzenbeek abrasion resistance test. The purpose is exploring the feasibility of improving the abrasion resistance with the method of introducing low surface energy chain segment. The experimental results show that the modified polyurethane surface resin for synthetic leather possesses lower 100%modulus compared with that before modification, and the prepared synthetic leather possesses more soft hand feel. The Wyzenbeek abrasion resistance of the synthetic leather is significantly improved and obviously superior to that of the polyurethane surface resin prepared by using polycarbonate diol. Therefore,the hydroxyl-terminated organo-silicone can improve the abrasion resistance of the polyether-based polyurethane and reinforce its flexibility.
作者
姚克俭
刘兵
葛礼响
Yao Kejian;Liu Bing;Ge Lixiang(Hefei Anli Polyurethane New Material Co., Ltd., Hefei 230093, Chin)
出处
《化学推进剂与高分子材料》
CAS
2018年第3期59-62,共4页
Chemical Propellants & Polymeric Materials
关键词
聚醚二醇
聚酯二醇
聚碳酸酯二醇
端羟基有机硅
聚氨酯
树脂
合成革
耐磨性能
polyether diol
polyester diol
polycarbonate diol
hydroxyl-terminated organo-silicone
polyurethane
resin
synthetic leather
abrasion resistance
