CAJ | 학술논문

采用聚酯多元醇、发泡剂、表面活性剂等混合而成的组合料与异氰酸酯－聚酯多元醇的预聚物，经反应注射成型，制备聚氨酯发泡材料，考察了扩链剂 EG 的添加量对聚氨酯微孔材料结构与性能的影响。研究结果表明，随着 EG的引入，经过水解，材料的力学性能影响最小；聚氨酯软硬段的最高热失重温度均呈现升高趋势，聚氨酯的耐热性有了提高。
채용취지다원순、발포제、표면활성제등혼합이성적조합료여이청산지－취지다원순적예취물，경반응주사성형，제비취안지발포재료，고찰료확련제 EG 적첨가량대취안지미공재료결구여성능적영향。연구결과표명，수착 EG적인입，경과수해，재료적역학성능영향최소；취안지연경단적최고열실중온도균정현승고추세，취안지적내열성유료제고。
The composite materials mixed with polyesterpolyol , foaming agent, surface active agent etc.and the prepolymer of isocya-nate -polyesterpolyol were made into polyurethane foaming materials through reaction injection moulding .The influence of additive a-mount of chain extender EG on the structure and property of polyurethane cellular material was investigated .The research result shows that with the introduction of EG, the mechanical property of materials has least influence through hydrolysis , that the highest heat tem-perature of the soft and hard segments of polyurethane tends to increase and that heat endurance of polyurethane increases .