脱羧腰果壳液改性聚氨酯/亚麻油复合涂料  

POLYURETHANE/LINSEED OIL COMPOSITE COATING MODIFIED BY CASHEW NUT SHELL LIQUID

作　　者：王洪宇[1] 王得宁[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237

出　　处：《林产化学与工业》2005年第1期45-48,共4页Chemistry and Industry of Forest Products

摘　　要：以亚麻油(LO)为分散介质,由蓖麻油 (CO)和甲苯二异氰酸酯 (TDI)反应制备了端部为—NCO的聚氨酯 /环烷酸钴催干的亚麻油(PU/LO)复合涂料。测试了复合膜性能并利用IR、TEM和DSC对复合膜表征,TEM和DSC表明复合膜为两相结构。采用含有—OH的脱羧腰果壳液(CNSL)对其改性后,复合膜玻璃化温度上升、硬度提高,耐水性进一步改善。最后再用γ-氨丙基三乙氧基硅烷偶联剂(A1110)改善膜的附着力。By mixing castor oil (CO) with toluene diisocyanate (TDI) in linseed oil (LO) as dispersion medium, a composite coating of polyurethane (PU)/LO was prepared when cobalt naphthenate was used as drier.The solidified film was measured by IR,DSC and TEM.Results indicated that LO domains were dispersed in the continuous PU phase.The dispersion was then modified with cashew nut shell liquid (CNSL) containing hydroxyl groups.T (gs) of both phases were increased after adding CNSL,and hardness of the paint film was enhanced.Furthermore,the dispersion was modified with coupling agent to improve adhesion property.

关 键 词：腰果壳液 亚麻油 蓖麻油 聚氨酯 涂料 

分 类 号：TQ630.7[化学工程—精细化工]