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聚氨酯/纳米碳酸钙弹性体的制备与力学性能研究

Synthesis and Mechanical Properties Study of Polyurethane / n-CaCO₃

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【Author】 LI Lixia1, LU ¨ Zhiping1, WANG Dongkai2(1. Inst.of Special Chem.of TUT,Taiyuan 030024,China;2.Ruicheng Huaxin Nanomaterials Corporation,Ruicheng 044600,China)

【机构】太原理工大学精细化工研究所；山西芮城华新纳米材料有限公司山西太原030024；山西太原030024；山西芮城044600；

【摘要】采用一步法以PTMEG,BDO,TEA,TDI为原料,选用n CaCO3合成了PU/n CaCO3弹性体,并考察了BDO,TEA,NCO/OH,n CaCO3的含量对聚氨酯弹性体力学性能的影响。结果表明,纳米碳酸钙对聚氨酯弹性体的力学性能有一定提高。粒度分析与SEM测试表明,纳米粒子在本研究体系中的分散程度不理想。更多还原

【Abstract】 In this paper,polyether urethane elastomers based on polytetramethylene etherglycol(PTMEG,1,4butyleneglycol(1,4BDO),diisocyanate(TDI) and nanoparticles(nCaCO3) were prepared successfully.The effects of BDO,the ratio of NCO and OH and the contents of nCaCO3 were also investigated.The results show that nanoparticles can improve the mechanical properties.The results of TEM and granularity analysis tests show that nanoparticles were not better dispersed in this system .更多还原