摘要
４，４′－二羟基二苯基丙烷与环氧氯丙烷，在ＢＦ３ＯＥｔ２催化剂作用下，反应生成端羟基酚氧树脂，与蓖麻油混合，用３种异氰酸酯（ＴＤＩ、ＩＰＤＩ和ＨＤＩ）作固化剂，制得一系列交联聚氨酯，研究了这３种聚氨酯的动态力学性能。结果表明，它们都有一个玻璃化转变温度，组分相容性好，改变ＮＣＯ／ＯＨ摩尔比和蓖麻油／酚氧树脂的质量比，可制得一系列具有阻尼性能好的浇注型聚氨酯材料。
The hydroxyl terminated phenoxy resin was prepared by reaction of bisphenol A and epichlorohydrin using BF 3·OEt 2 as catalyst, and then mixed with castor oil and reacted with toluene diisocyanate(TDI) ,hexamethylene diisocyanate(HDI) and isophorone diisocyanate(IPDI), respectively, to give a series polyurethanes. The dynamic mechanical properties of the polyurethanes were investigated. The results show that the polyurethanes have a single T g and have good compatibility. Under optimum content of phenoxy resin and NCO/OH mole ratio, a series polyurethanes with excellent damping properties were obtained.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第4期169-170,175,共3页
Polymer Materials Science & Engineering
关键词
蓖麻油
酚氧树脂
聚氨酯
力学性
固化
异氰酸酯
castor oil
phenoxy resin
polyurethane
dynamic mechanical properties
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