Synthesis of HDI/IPDI hybrid isocyanurate and its application in polyurethane coating

被引：26

作者：

Wang, Guiyou ^{[1
]}

Li, Kang ^{[1
]}

Zou, Wei ^{[1
]}

Hu, Aiguo ^{[1
]}

Hu, Chunpu ^{[1
]}

Zhu, Yangping ^{[2
]}

Chen, Chen ^{[2
]}

Guo, Glynn ^{[2
]}

Yang, Aaron ^{[2
]}

Drumright, Ray ^{[3
]}

Argyropoulos, John ^{[3
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

[2] Dow Chem Co Ltd, Shanghai 201203, Peoples R China

[3] Dow Chem Co USA, Midland, MI 48674 USA

来源：

PROGRESS IN ORGANIC COATINGS | 2015年 / 78卷

关键词：

Isophorone diisocyanate; Hexamethylene diisocyanate; Coating; Hybrid isocyanurate; Polyurethane; Structure; ISOPHORONE DIISOCYANATE; TRIMERIZATION; IONIZATION; REACTIVITY;

D O I：

10.1016/j.porgcoat.2014.08.017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A solvent-free hybrid isocyanurate was prepared by trimerization of hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI), and characterized by gel permeation chromatography (GPC), gas chromatography (GC), nuclear magnetic resonance (NMR), and electrospray ionization mass spectrometry (ESI-MS). The results showed that HDI/IPDI hybrid isocyanurate could be prepared in the presence of 2-hydroxypropyl-trimethyl-azanium catalyst at reaction temperatures between 50 degrees C and 70 degrees C. Both the GC and H-1 NMR analyses identified the favorable linear relationship between the feed ratio of the starting monomers and the amount of each individual isocyanate incorporated into the oligomer (reaction ratio). The polyurethane coatings prepared with HDI/IPDI hybrid isocyanurates demonstrated faster drying speed, higher hardness and gloss and better distinctness-of-image (DOI) than the analogous coatings prepared with cold-blends of HDI isocyanurate and IPDI isocyanurate. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：225 / 233

页数：9

共 22 条

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