聚四氢呋喃醚二醇/蓖麻油基聚氨酯脲弹性体的制备与性能  

Preparation and Properties of PTMG/Castor Oil-based Polyurethane-urea Elastomers

作　　者：吴元[1] 曹玉阳[1] 赵福光[1] 李再峰[1] 

机构地区：[1]生态化工教育部重点实验室青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《塑料工业》2013年第7期10-12,21,共4页China Plastics Industry

基　　金：国家自然科学基金(21176126);中石化科技攻关计划项目(P12119)

摘　　要：以可再生的蓖麻油、聚四氢呋喃醚二醇(PTMG-1000)、甲苯二异氰酸酯(TDI)为原料,采用预聚体法合成了一系列的聚氨酯脲弹性体(PUU)。使用电子拉力机测定了材料的力学性能,并采用示差扫描量热仪(DSC)和热重分析仪(TG)对材料进行了热分析。结果表明,随着PTMG-1000质量分数的增加,材料的拉伸和撕裂强度先增加后降低,断裂伸长率不断增加,硬度有所下降。PTMG-1000/蓖麻油软段共混型PUU的耐热性能明显优于单纯蓖麻油基PUU。Using renewable castor oil, PTMG-1000, TDI as raw materials, by pre-polymerization method, a series of polyurethane-urea elastomers were prepared. The mechanical properties were tested by electric tensile machine, and DSC and TG was used to analyze the thermal property of the materials. The results showed that ： with the increase of PTMG-1000, the tensile strength and tearing strength of the material increased and then decreased, and the elongation at break increased while the hardness showed some reduction. The thermal property of PTMG-1000/eastor oil soft segment blend PUU was apparently superior to that of the pure castor oil based PUU.

关 键 词：蓖麻油 聚四氢呋喃醚二醇 聚氨酯脲弹性体 热性能 

分 类 号：TQ334[化学工程—橡胶工业]