發布時(shi)間:2021-03-19
酚(fen)(fen)醛環(huan)氧(yang)樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)化學(xue)結構的(de)(de)(de)差異,及其對(dui)產品性能的(de)(de)(de)影(ying)響(xiang) 酚(fen)(fen)醛環(huan)氧(yang)樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)和雙酚(fen)(fen)F型樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)都是(shi)從苯(ben)(ben)酚(fen)(fen)甲醛型酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)合(he)成(cheng)而來。雙酚(fen)(fen)A環(huan)氧(yang)樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)是(shi)由苯(ben)(ben)酚(fen)(fen)丙酮(tong)型酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)合(he)成(cheng),這些起始的(de)(de)(de)酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)和環(huan)氧(yang)氯丙烷反(fan)(fan)應(ying),就得到(dao)了最終(zhong)的(de)(de)(de)環(huan)氧(yang)樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)。合(he)成(cheng)酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)過程中(zhong),不同(tong)原料(liao)配比的(de)(de)(de)變化,將會影(ying)響(xiang)酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)官能度(du),從而最終(zhong)影(ying)響(xiang)酚(fen)(fen)醛環(huan)氧(yang)樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)官能度(du)。 酚(fen)(fen)醛樹(shu)(shu)(shu)脂(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)合(he)成(cheng)涉及到(dao)一個(ge)典型的(de)(de)(de)加(jia)成(cheng)/縮(suo)聚反(fan)(fan)應(ying),第(di)一步反(fan)(fan)應(ying)是(shi)丙酮(tong)/甲醛和苯(ben)(ben)酚(fen)(fen)的(de)(de)(de)加(jia)成(cheng)反(fan)(fan)應(ying),在苯(ben)(ben)環(huan)上形成(cheng)鄰位和對(dui)位的(de)(de)(de)結構。