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Jiangmen, China

Xu Z.-H.,Jiangmen Polytechnic | Yin S.,Wuyi University | Sun N.,Jiangmen Polytechnic | Sun N.,Wuyi University | And 4 more authors.
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | Year: 2014

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. Source


Sun N.,Jiangmen Polytechnic | Sun N.,Wuyi University | Feng C.,Wuyi University | Cheng C.,Wuyi University | And 3 more authors.
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | Year: 2015

The hyperbranched polyurethane acrylate (HPUA) was synthesized by the reaction of hyperbranched polyurethane endcapped with hydroxyl groups (HPU-OH) using semiadduct isocyanate-hydroxyethyl acrylate (IPDI-HEA). The HPU-OH containing chain extender was prepared based on isophorone diisocyanate (IPDI), neopentyl glycol(NPG) and diethanolamine (DEOA). The molecular structure and thermal performance of HPUA and HPU-OH were characterized by FT-IR, 1H-NMR, 13C-NMR, TG and DSC. FT-IR and NMR show that HEA is successfully grafted into HPU-OH and HPUA possesses hyperbranched structure. TG displays that HPU-OH and HP UA both have three thermal decomposition temperature ranges, retain the similar decomposition process. DSC demonstrates that Tg of HPUA is lower than that of HPU-OH. Furthermore, HPUA was blended with common epoxy acrylate and expose d to a UV lamp. The performance tests shows that the coating with 10% addition of HPUA, the pencil hardness increases from B to 2H, the pendulum hardness improves from 0.59 to 0.76 and the adhesion grade rises from 2 grade to 0 grade. ©, 2015, Chengdu University of Science and Technology. All right reserved. Source


Chen C.,Wuyi University | Sun N.,Wuyi University | Cheng J.,Jiangmen Paint Factory Co. | Jiang S.-H.,Wuyi University | And 3 more authors.
Xiandai Huagong/Modern Chemical Industry | Year: 2014

The classification, preparation methods and applications of the waterborne inorganic-organic composite plastic coating are reviewed. The basic research about improvement of waterborne inorganic-organic composite plastic coating is put forward. The development of new products based on the related research results is proposed as main direction in the future. Source

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