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P. 82
第54卷第6期 涂料工业 Vol. 54 No. 6
2024年6月 张 等:PDI改性水性醇酸乳液的制备及性能研究 Jun. 2024
I PAINT & COATINGS INDUSTRY
D 改性水性 酸乳液的制备及性能研究
张 ,程相 , ,张 ,李
*
( 州大学化工学院, 州450001)
摘 要:水性醇酸涂料漆膜的硬度、光泽与耐水性较油性醇酸涂料差,改进这些性能对水性醇酸
涂料的推广应用有重要意义。本研究以大豆油、季戊四醇及苯 为原料,采用醇解法合成醇酸预聚
体,并引入异佛尔酮二异氰酸酯(IPDI)改性,通过相反转法制成 IPDI 改性水性醇酸乳液。研究了
IPDI用量、中和剂AMP-95用量、乳化工艺对水性醇酸乳液性能的影响。结果表明:当IPDI用量(以苯
的质量计)为 50%,AMP-95 用量(以树脂的质量计)为 0. 6%,乳化剂用量(以树脂的质量计)为 5%,
搅拌速度为 4 000 r/min 时,所制得的水性醇酸乳液漆膜硬度达 2H,光泽为 90. 87,表干 2 h,耐水性
24 h无异常,漆膜综合性能表现良好。
关键词:PDI改性;醇酸树脂;相反转法;中和剂
I
中图分类号:TQ637. 81 文献标志码:A 文章编号:0253-4312(2024)06-0029-07
doi:10. 12020/j. issn. 0253-4312. 2023-382
Preparation and Properties of IPDI Modified Waterborne
Alkyd Emulsion
ZHANG Lu,CHENG Xianglin,QI Ziyi,ZHANG Qi,LI Jinna
(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China)
Abstract:The hardness,gloss and water resistance of waterborne alkyd coating are
poorer than those of oilborne alkyd coating,and improving these properties is of great
significance for the promotion and application of waterborne alkyd coating. In this study,
soybean oil,pentaerythritol and phthalic anhydride were used to synthesize alkyd prepolymers
by alcoholysis,and isophorone diisocyanate(IPDI)was introduced to prepare IPDI-modified
waterborne alkyd emulsion by phase inversion. The effects of IPDI and neutralizer AMP-
95 dosages,and emulsification process on the properties of waterborne alkyd emulsion were
studied. The results showed that when the amount of IPDI,AMP-95 and emulsifier was 50%,
t
r
0. 6% and 5%,espectively,and the stirring speed was 4 000 r/min,he obtained waterborne
alkyd film showed the better comprehensive performance with hardness of 2H,loss of 90. 87,
g
a
surface dry time of 2 h,nd water resistance for 24 hours.
a
Key words:PDI modification;lkyd resin;phase inversion method;neutralizer
I
水性醇酸涂料以水作为溶剂,具有无毒、易清洗 的关键是研发高性能水性醇酸乳液,然而醇酸树脂
的优点,一直是研究的热点 [1-2] 。水性醇酸涂料开发 水性化技术难度大,现有主流水性醇酸树脂或乳液
*通信作者
本文规范引用格式:
张 ,程相林, 子 ,等. IPDI改性水性醇酸乳液的制备及性能研究[J]. 涂料工业,2024,54(6):29-34,40.
ZHANG L,CHENG X L,QI Z Y,et al. Preparation and properties of IPDI modified waterborne alkyd emulsion[J]. Paint & Coatings Industry,2024,
54(6):29-34,40.
0