论文部分内容阅读
玻璃钢的耐腐蚀性能主要取决于所选用的树脂基体是否经得起介质的侵蚀。目前国内常用的耐腐蚀聚酯树脂有197~#、3301~#和323~#等牌号。上述三种树脂都是以双酚A与环氧丙烷的加成产物4,4′-(ββ′-二羟基二丙氧苯基)-2,2丙烷为二元醇(亦称D-33二醇)代替或部分代替丙二醇而合成的不饱和聚酯树脂。由于D-33二醇的分子量要比丙二醇的大得多,故而这类树脂分子结构中易
Corrosion resistance of FRP mainly depends on the selection of the resin matrix is able to withstand media erosion. At present, the commonly used corrosion-resistant polyester resin has 197 ~ #, 3301 ~ # and 323 ~ # and other brands. The three resins are based on the addition of bisphenol A and propylene oxide 4,4 ’- (ββ-dihydroxypropoxyphenyl) -2,2 propane diol (also known as D-33 Diol) instead of or in part of propylene glycol. Due to the molecular weight of D-33 diol is much larger than that of propylene glycol, the molecular structure of such resins is easy