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【答案】应助回帖
★ ★ ★ ★ ★
感谢参与，应助指数 +1
andy1777: 金币+5, ★★★★★最佳答案 2014-08-30 22:35:43
sunshan4379: LS-EPI+1, 感谢应助！ 2014-08-31 00:10:58
Accession number: 20141117464396
Title: Synthesis and properties research of UV-curable hyperbranched polyurethane acrylate
Authors: Xu, Zhao-Hua1; Yin, Shun2; Sun, Ning1, 2 ; Li, Heng1; Jiang, Shao-Hua2; Li, Yi-Biao2; Cheng, Jian3
Author affiliation: 1 Department of Material Technology, Jiangmen Polytechnic, Jiangmen 529090, China
2 School of Chemical and Environmental Engineering, Wuyi University, Jiangmen 529020, China
3 Jiangmen Paint Factory Co., Ltd, Jiangmen, 529030, China
Corresponding author: Sun, N. (jmnsun@163.com)
Source title: Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
Abbreviated source title: Gao Xiao Hua Xue Gong Cheng Xue Bao
Volume: 28
Issue: 1
Issue date: February 2014
Publication year: 2014
Pages: 156-164
Language: Chinese
ISSN: 10039015
CODEN: GHGXEG
Document type: Journal article (JA)
Publisher: Zhejiang University
Abstract: A series of UV-curable hyperbranched polyurethane acrylate (HBPUA-X) was synthesized by using the raw materials of isophorone diisocyanate(IPDI), 2-hydroxyethyl acrylate(HEA) and different chain extenders. The structures and properties of HBPUA-Xs were characterized by fouriertransform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), thermogravimetric analysis (TG), differential scanning calorimeter (DSC) and Ubbelohde viscometer. FT-IR and NMR were used to clarify the structures of HBPUA-Xs. TG and DSC measurements show the difference of thermal properties for HBPUA-Xs. Ubbelohde viscometer results show that the intrinsic viscosity of HBPA-XG increases significantly with the increasing of the chain extender length. The performances of the UV curing epoxy acrylates resin coating were investigated after introducing HBPUA-Xs to the resin. TG results show that the initial decomposition temperature of the film decreases in different extent and also the film's residual amount reduces with the increase of the chain extender length. DSC results show that the film's glass transition temperature (Tg) decreases with the increase of the chain extender length. The performances of coating films are substantial improved with the addition of HBPUA-X. The adhesion of the coating film is raised from 3 grade to 1 grade, the flexibility is increased from 8 mm to 2 mm, and the pendulum hardness and the impact strength are obviously improved with the addition of 10% HBPUA-HDO.
Number of references: 20
Main heading: Epoxy resins
Controlled terms: Chains - Coatings - Curing - Differential scanning calorimetry - Infrared spectroscopy - Resins - Thermogravimetric analysis - Viscometers - Viscosity measurement
Uncontrolled terms: Chain extenders - Differential scanning calorimeters - Fourier transform infrared spectroscopy (FT-IR) - Hyperbranched polyurethane - Hyperbranched polyurethane acrylate - Initial decomposition temperatures - Nuclear magnetic resonance(NMR) - UV curable
Classification code: 539 Metals Corrosion and Protection; Metal Plating - 602.1 Mechanical Drives - 741.1 Light/Optics - 801 Chemistry - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 943.3 Special Purpose Instruments
DOI: 10.3969/j.issn.1003-9015.2014.01.024
Database: Compendex
Compilation and indexing terms, © 2014 Elsevier Inc.
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