| 聚酯的序列结构对聚氨酯弹性体形貌的影响 |
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| 引用本文： | 王亦农,陈慧勤,秦俊远.聚酯的序列结构对聚氨酯弹性体形貌的影响[J].化学研究与应用,2009,21(11). |
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| 作者姓名： | 王亦农 陈慧勤 秦俊远 |
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| 作者单位： | 王亦农(江西教育学院理学分院,江西,南昌,330029);陈慧勤,秦俊远(南昌大学理学院,江西,南昌,330031) |
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| 摘 要： | 以己二酸(AA),1,4-丁二醇(BDO),乙二醇(EG)分别采用一步法、二步法合成分子量为3000的聚酯PAEB-R和聚酯PAEB-A.再分别与二苯基甲烷二异氰酸酯(MDI)、扩链剂1,4-丁二醇(BDO),乙二醇(EG)反应分别合成固含量30%与粘度为20000的聚氨酯(PAEB-R)-MDI-TPU和聚氨酯(PAEB-A)-MDI-TPU.SEM、AFM表明不同工艺所合成的聚氨酯均存在微相分离,且聚氨酯(PAEB-R)-MDI-TPU微相分离程度高于(PAEB-A)-MDI-TPU.
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| 关 键 词： | 聚酯多元醇 聚氨酯 微相分离 |
The different synthesis technics of polyester polyols on the surface morphology properties of polyurethane elastomers |
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| Abstract: | Adopt one step and two step synthesize polyester polyols PEBA-R and PEBA-A of molecular weight(3000) with Adipic acid( AA) 、1,4-butanediol ( BDO) and ethylene glycol(EG). then add to 4,4'-diphenylmethane diisocyanate、1,4-butanediol (BDO) and ethylene glycol(EG) synthesis polyurethane which viscosity is 20000 mPa. s and Solid content is 30 percent. SEM and AFM showd that Both present microphase separation, It is concluded that the micro-phase separation degree of polyurethane ( PAEB-A) -MDI-TPU is below the level of micro-phase separation of( PAEB-R) -MDI-TPU. |
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| Keywords: | polyester polyols polyurethane microphase separation |
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