Page 214 - 《精细化工》2021年第9期
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第 38 卷第 9 期 精 细 化 工 Vol.38, No.9
202 1 年 9 月 FINE CHEMICALS Sept. 2021
建筑用化学品
1-苯甲氧基-3-烷氧基-2-丙醇成膜助剂的制备及应用
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孟繁博 ,袁宜恩 ,邹心如 ,季永新
(1. 南京林业大学 化学工程学院,江苏 南京 210037;2. 上海保立佳新材料有限公司,上海 201405)
摘要:以苯甲醇和异丙基缩水甘油醚、正丁基缩水甘油醚为原料,合成 1-苯甲氧基-3-烷氧基-2-丙醇成膜助剂。
探究了最佳工艺条件为:n(苯甲醇)∶n(烷基缩水甘油醚)=1∶1.5,反应温度 120 ℃,反应时间 9 h,催化剂为复
合催化剂〔m(甲醇钠)∶m(四丁基溴化铵)=2∶1〕,催化剂用量 0.8%(以苯甲醇和烷基缩水甘油醚的质量和
为基准,下同)。采用红外光谱和核磁共振氢谱确证了成膜助剂的化学结构。测定 1-苯甲氧基-3-异丙氧基-2-丙
醇成膜助剂的沸点为 267~270 ℃,1-苯甲氧基-3-正丁氧基-2-丙醇成膜助剂的沸点为 276~280 ℃。探究了合成
的成膜助剂在乳胶漆中的应用,分别进行了最低成膜温度、涂膜表面形态、透光率、硬度、吸水率、热储存稳
定性、展色性和耐水性等方面的测试,合成的成膜助剂总体性能优于传统成膜助剂 2,2,4-三甲基-1,3-戊二醇单异丁
酸酯(十二醇酯)。
关键词:成膜助剂;烷基缩水甘油醚;苯甲醇;乳液;乳胶漆;建筑用化学品
中图分类号:TQ243.4 文献标识码:A 文章编号:1003-5214 (2021) 09-1928-07
Preparation and application of 1-phenoxy-3-alkoxy-2-propanol
film forming coalescing agents
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MENG Fanbo , YUAN Yien , ZOU Xinru , JI Yongxin
(1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; 2. Shanghai
Baolijia New Material Co., Ltd., Shanghai 201405, China)
Abstract: 1-Phenoxy-3-alkoxy-2-propanol coalescing agents were synthesized from benzyl alcohol and
isopropyl glycidyl ether (or n-butyl glycidyl ether). The optimum process conditions for the coalescing
agents were obtained as follows: n(benzyl alcohol)∶n(alkyl glycidyl ether)=1∶1.5, reaction temperature
120 ℃, reaction time 9 h, mixture of sodium methoxide and tetrabutyl ammonium bromide [m(sodium
methoxide)∶m(tetrabutyl ammonium bromide)=2∶1] as catalyst, catalyst dosage (based on the total mass
of benzyl alcohol and alkyl glycidyl ether, the same below) 0.8%. The chemical structures of the coalescing
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agents were confirmed by FTIR and HNMR. The boiling points of 1-phenoxy-3-isopropoxy-2-propanol
and 1-phenoxy-3-n-butoxy-2-propanol were 267~270 ℃ and 276~280 ℃, respectively. The application of
the coalescing agents in latex paint was explored. The minimum film forming temperature, coating surface
morphology, light transmittance of coating, coating hardness, water absorption and heat storage stability of
the coating, color and water resistance were tested. The results indicated that the overall performance of the
prepared coalescing agents was better than that of the traditional coalescing agent 2,2,4-trimethyl-1,3-
pentanediol monoisobutyrate.
Key words: coalescing agent; alkyl glycidyl ether; benzyl alcohol; emulsion; latex paint; building
chemicals
水性涂料的成膜助剂又叫聚结剂、助溶剂或共 溶剂,是相对分子质量达到数百的高沸点化合物,
收稿日期:2021-03-08; 定用日期:2021-04-25; DOI: 10.13550/j.jxhg.20210239
基金项目:国家重点研发计划(2018YFD0600402)
作者简介:孟繁博(1995—),男,硕士生,E-mail:mengyouyue@163.com。联系人:季永新(1962—),男,教授,E-mail:jiyongxin@
njfu.com.cn。