Abstract: :A series of self-made phenolic aldehyde were modified in this paper.Through studying the efects of catalyst，pentaerythritol，maleic anhydride and resol，in terms of the type and dosage on the self-geling properties of phenolic resin respectively，the moderate reaction condition was obtained as folows:the amount of resol was 40%，catalyst 1%，maleic anhydride 5%，pentaerythritol 11%，based on weight of rosin.The synthesized rosin modified phenolic resin had good performance of self-geling.

Key words: self-geling, rosin modified, phenolic resin

摘要： 对自制的酚醛浆进行改性，通过考察催化剂的选择及用量、季戊四醇的用量、马来酸酐用量和酚醛浆用量 对树脂自凝性的影响，得到适宜的反应条件:酚醛缩合物的添加量为松香的 40%，催化剂用量为松香的 1%，马来酸酐 的添加量为松香的 5%，季戊四醇的添加量为松香的 1%。合成的改性松香酚醛树脂具有良好的自凝性。

关键词: 自凝性 , 松香改性 , 酚醛树脂