Preparation and Cross-Linking Properties of VAc/DAAM Copolymer Emulsion

2019 ◽  
Vol 953 ◽  
pp. 141-146
Author(s):  
Ye Liu ◽  
Yun Xiao Zang ◽  
Xiao Hui Wang ◽  
Li Ming Dong

A new type of polymer emulsion was prepared by the copolymerization of DAAM and VAc monomer with high solid content and storage stability. By addition of ADH (ketonic hydrazide cross-linking reaction), the polymer emulsion can be cross-linked at room temperature. It was found that the degree of cross-linking of the polymer reaches 71.85%, and the resistance to boiling water reaches 180min at the maximum of DAAM of 2% and DAAM / ADH = 1/1.

2014 ◽  
Vol 548-549 ◽  
pp. 57-60 ◽  
Author(s):  
Xiao Li Wei ◽  
Fa Xing Zhang

A series of novel stable polyurethane emulsion with high-solid-content and low-viscosity were prepared by self-emulsification. They were prepared by the reaction of poly (tetrahydrofuran-co-oxidation of propylene) glycol (Ng210), isophorone isocyanate (IPDI) with 1,2-dihydroxy-3-propanesulfonic acid salt (DHPA) as hydrophilic chain-extending agents. Influence of the content of DHPA on properties of polyurethane emulsion and film were analyzed .The results show that obtained emulsion were multivariate distribution in particle size and were spherical particles by measurement of grain size and electron microscopic photo. It is noticed that with increasing content of DHPA and, average particles diameter of polyurethane emulsion became smaller, poly-dispersion became narrower and solid-content became bigger. when the content of DHPA is 7%, solide-concent of emulsion reaches 61%. In addition, Polyurethane emulsion are endowed stability of emulsion are good at high temperature and low temperature as well as storage stability.


2021 ◽  
Vol 28 (7) ◽  
Author(s):  
Wenqi Xian ◽  
Jie Yuan ◽  
Zhengbin Xie ◽  
Wei Ou ◽  
Xiaoxuan Liu ◽  
...  

Author(s):  
Haomiao Yu ◽  
Sensen Sun ◽  
Jianbing Gao ◽  
Xiaoxun Jin ◽  
Jie Liu ◽  
...  

2021 ◽  
Vol 164 ◽  
pp. 113396
Author(s):  
Xiaojuan Chen ◽  
Zhonghua Li ◽  
Lidan Zhang ◽  
Haoran Wang ◽  
Congzhi Qiu ◽  
...  

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