Synthesis and UV curing kinetics of rapidly UV-curable hyperbranched polycarbosiloxanes

2010 ◽  
Vol 59 (10) ◽  
pp. 1323-1330 ◽  
Author(s):  
Sheng-Jie Wang ◽  
Xin Liu ◽  
Jie Kong ◽  
Wei Tian ◽  
Xiao-Dong Fan ◽  
...  
2012 ◽  
Vol 549 ◽  
pp. 457-461
Author(s):  
Jun Gang Gao ◽  
Feng Li Zhu ◽  
Jiang Bo Yang ◽  
Xiao Qian Liu

In ouder to prepare the waterborne UV-curable polyurethane acrylate coatings, the anionic polyurethane acrylate emulsifier and bisphenol-S eopxy acrylate were synthesized. The curing process, kinetics and properties of waterborone UV-curable epoxy acrylate/polyurethanes acrylate coating were investigated by FTIR, DSC and DMA. The results show that the static initial curing temperature Ti is 52.36 oC, peak temperature Tp is 71.58 oC, the finished temperature Tf is 89.15 oC. The curing reaction can be described by two-parameter autocatalytic Šesták-Berggren (S-B) model.This coating has a better UV-curing property. The dynamic mechanical analysis showed that the glass transition temperature Tg of coating film is 52.70 oC.


2010 ◽  
Vol 174 ◽  
pp. 397-400 ◽  
Author(s):  
Ping Xiu Ni ◽  
Xian Fu Wei ◽  
Pei Qing Huang ◽  
Wei Wei

In order to make different UV curing inkjet ink system and test the relationship between the dynamic elastic modulus and UV curing time, the same monomer and pre-polymer were mixed in different proportions, and different functional monomers and pre-polymer were mixed. The results show that the larger the proportion of the pre-polymer and the greater the number of monomer functional groups, the shorter the induction period of the UV curing of UV inkjet ink system and the faster the UV curing rate. Then, the UV curing kinetics of UV inkjet inks was analyzed preliminarily.


1997 ◽  
Vol 30 (23) ◽  
pp. 7322-7328 ◽  
Author(s):  
Bor-Sen Chiou ◽  
Saad A. Khan

Polymer ◽  
2009 ◽  
Vol 50 (15) ◽  
pp. 3587-3594 ◽  
Author(s):  
Sheng-Jie Wang ◽  
Xiao-Dong Fan ◽  
Jie Kong ◽  
Jian-Ren Lu

2013 ◽  
Vol 683 ◽  
pp. 266-270 ◽  
Author(s):  
Jia Le Song ◽  
Peng Wei Hao ◽  
Chao Qiang Ye ◽  
Li Xin Chen ◽  
Wei Guang Li

The kinetics of UV curable thiol-hyperbranched polysilazanes (HBP) was studied by differential photo-scanning calorimeter (DPC) technology. The effects of photo initiator concentration [I], light intensity I0and temperature on the UV curing rate and the final unsaturated double bond conversion of thiol-HBP were investigated. The results indicate that the dependence of polymerization rate Rp on [I] and I0, respectively, was found to fit with theoretical predictions very well at [I] no more than 0.50wt% and I0lower than 19.40mW/cm2. The kinetic parameters were calculated by autocatalytic model, and correspondingly, the total apparent reaction exponent and apparent activation energy are 8.76 and 13.97kJ/mol, respectively.


2019 ◽  
Vol 136 ◽  
pp. 105231
Author(s):  
Chuanhui Gao ◽  
Di Zhang ◽  
Huizi Wang ◽  
Chuanxing Wang ◽  
Junguo Yuan ◽  
...  

2007 ◽  
Vol 107 (6) ◽  
pp. 3812-3822 ◽  
Author(s):  
Sheng-Jie Wang ◽  
Xiao-Dong Fan ◽  
Jie Kong ◽  
Yu-Yang Liu

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