Page 102 - 2025水性涂料虚拟专辑
P. 102
第54卷第7期 涂料工业 Vol. 54 No. 7
2024年7月 何 等:蓖麻油-异山 醇基水性光固化聚氨酯的合成及性能研究 Jul. 2024
PAINT & COATINGS INDUSTRY
异 基水性光固化聚氨酯的合成
及性能研究
,钱豪 ,陶 伟 ,唐 , 伯龙 *1,2
1,2
1,2
1,2
1,2
(1. 江南大学合成与生物 体 部重点实验室,江苏无 214122;
2. 江南大学化学与材料工程学院,江苏无 214122)
摘 要:为了解决水性生物基聚氨酯力学性能较低的问题,以生物基多元醇(蓖麻油与异山
醇)、异佛尔酮二异氰酸酯、2,2-羟甲基丙酸、季戊四醇三丙烯酸酯和三乙胺为原料,合成了水性光固
化生物基聚氨酯。通过 立叶变换红外光谱仪、核磁共振波谱仪、Zeta电位及纳米粒度分析仪等对乳
液结构进行表征,并对涂膜的力学性能、透过率、基本性能进行分析。结果表明:随着异山 醇含量
的增加,涂层的拉伸应力从从 4. 9 MPa 增长到 26. 8 MPa,断裂伸长率从 269% 下降至 4. 1%;在可见光
波段范围内各涂层光透过率均维持在 90% 以上。因此,在合适的蓖麻油与异山 醇的配比下生物基
聚氨酯涂膜的力学性能显著提升,并且在可见光波段具有良好的透明度。
关键词:水性基聚氨酯;生物基多元醇;光固化;力学性能
中图分类号:TQ637 文献标志码:A 文章编号:0253-4312(2024)07-0023-06
doi:10. 12020/j. issn. 0253-4312. 2024-036
Synthesis and Properties of Castor Oil-Isosorbide Based
Waterborne UV-curable Polyurethane
1,2
1,2
1,2
1,2
HE Liu ,QIAN Haofeng ,TAO Wei ,TANG Jia ,YAO Bolong 1,2
J
(1. Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,iangnan University,Wuxi,
J
Jiangsu 214122,China;2. School of Chemical and Material Engineering,iangnan University,Wuxi,
Jiangsu 214122,China)
Abstract:n order to solve the problem of low mechanical properties of waterborne bio-based
I
polyurethane,a waterborne UV-curable bio-based polyurethane was synthesized using bio-based
polyols(castor oil and isosorbide),isophorone diisocyanate,2,2-hydroxymethylpropionic
acid,pentaerythritol triacrylate and trimethylamine. The structures of emulsion were
characterized by Fourier transform infrared spectroscopy(FT-IR),nuclear magnetic resonance
spectroscopy,zeta potential instrument and nanoparticle size analyzer. The mechanical
properties,ransmittance and other basic properties of coating were also studied. The results
t
t
showed that,with the increase of isosorbide content,he tensile stress increased from 4. 9 MPa to
26. 8 MPa,he elongation at break decreased from 269% to 4. 1%,and the light transmittance
t
of each coating remained above 90% in the visible light. Therefore,he mechanical properties
t
*通信作者
本文规范引用格式:
何柳,钱豪峰,陶伟,等. 蓖麻油-异山梨醇基水性光固化聚氨酯的合成及性能研究[J]. 涂料工业,2024,54(7):23-28.
HE L,QIAN H F,TAO W,et al. Synthesis and properties of castor oil-isosorbide based waterborne UV-curable polyurethane[J]. Paint & Coatings
Industry,2024,54(7):23-28.
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