低软化点松香树脂乳液的制备研究  

Preparation of Emulsions from Low-softening-point Rosin Esters

作　　者：李建芳[1] 商士斌[1] 高宏[1] 宋湛谦 

机构地区：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,江苏南京210042

出　　处：《林产化学与工业》2009年第B10期73-76,共4页Chemistry and Industry of Forest Products

基　　金：国家农业科技成果转化资金项目资助(2008GB24320413);"十一五"国家科技支撑计划资助(2007BAD82B01);浙江省科技计划项目(2008E20012)

摘　　要：以松香为原料合成低软化点松香树脂，并采用常压逆转法将其制备为乳液。重点研究了乳化剂及助乳荆的种类、用量及加入方式和操作条件等因素对乳液性能的影响，确定了优化的工艺条件。结果表明，乳化剂RH-1与助乳剂ZR-1的最佳质量比为5：1，RH-1最佳用量为松香树脂质量的10％～13．2％；乳化剂和助乳剂的最佳加入方式为先将它们溶于少量水中，再与松香树脂一起加热熔融；乳化温度为100℃，转相前滴水速率为30～40滴／min，搅拌速率为900r／min。所得乳液平均粒径小于250nm，一致性小于0．26，固含量大于55％，常温放置6个月无分层现象。Emulsions were made from low-softening-point rosin esters by the method of inversion process under atmospheric pressure. The effects of kinds, contents and addition methods of emulsifiers and co-emulsifiers and the processing conditions on the emulsion performance were studied and the reasonable process condition was determined. The results show that the optimal proportion of emulsifier RH-1 to ZR-1 is 5： 1, optimal amount of RH-1 is 10 %-13.2 % of rosin ester mass, the optimal adding method of emulsifiers and co-emulsifiers is to dissolve them in water followed by hot-melting and with rosin ester together, optimal emulsification temperature is 100 ℃, optimal dripping rate before inversion process is 30-40 drops per minute and the stirring speed is 900 r/min. The particle size of the obtained emulsion under this condition is less than 250 nm, the conformance is less than 0.26, solid content is more than 55 % and the stabilization period is more than 6 months.

关 键 词：低软化点 松香 乳化剂 助乳剂 乳液 

分 类 号：TQ351.471[化学工程]