【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。更多还原

【Abstract】 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.更多还原