摘要
乙烯－ 醋酸乙烯共聚物（ＥＶＡ）乳液经碱催化水解与甲苯－ ２，４－ 二异氰酸酯（ＴＤＩ） 进行交联反应而改性。ＥＶＡ 乳液水解程度为３％ ，反应温度为３０℃，反应时间为１ ｈ 的条件下有较高的转化率。ＴＤＩ用量与ＥＶＡ水解程度有关。以红外光谱、透射电子显微镜表征水解反应、交联反应及乳胶粒结构形态。
The ethylene-vinyl acetate(EVA)copolymer emulsion was modified by hydrolysis at the present of basic catalyst and further crosslin king with toluene diisocyanate(TDI).Higher conversion could be reached under the condition of EVA with 3% hydrolysis degree at 30℃ for 1 h.The level of TDI depends on the hydrolysis degree of EVA.The hydrolytic reaction,crosslinking reaction and latex particle structural morphology were characterized by IR and TEM.
出处
《涂料工业》
EI
CAS
CSCD
2000年第2期10-13,共4页
Paint & Coatings Industry
