一步法合成松香改性酚醛树脂  

ONE-STEP SYNTHETIC REACTION OF ROSIN MODIFIED PHENOLIC RESIN

作　　者：王正青[1] 于旭祥[1] 张健 

机构地区：[1]华东理工大学技术化学物理研究所

出　　处：《高分子材料科学与工程》1998年第2期41-43,共3页Polymer Materials Science & Engineering

摘　　要：探讨了一步法合成松香改性酚醛树脂的反应机理，确定了最佳原料组成及合成工艺，由此制备出高溶解粘度和矿油容纳度的松香改性酚醛树脂。The synthetic reaction of rosin modified phenolic resin used as a vehicle for advanced offset inks has been studied by an one-step synthetic process. The optimized synthetic processes at the conditions of formaldehyde/phenol ratio 2.75 and rosin /resol ratio 1.25 are defined. This modified resin with the main structure of dibenzopyran cyclic product has the properties of the apparent viscosity of 24000 mPa·s(25 ℃), nheptane value 6.2 mL, soften point 181 ℃. It showed the high dissolve viscosity and mineral oil tolerance.

关 键 词：松香 改性 酚醛树脂 一步法 

分 类 号：TQ323.06[化学工程—合成树脂塑料工业]