Application of isotridecanol ethoxylate nonionic emulsifiers in emulsion polymerization and effeit on properlies
NIU Lin
YING Ban
GU Jian
LI Lei
Abstract：Nonionic emulsifiers of isotridecanol ethoxylate type(Levima LPS series) were used in acrylate-styrene emulsion polymerization, and the influence of emulsifiers on polymerization stability and latex properties were studied. From the polymeriza-tion results,it could be found that the reaction stability of isotridecanol ethoxylate samples were better than that of NPEO samples, which was due to the better balance of cloud point and emulsifying ability of isotridecanol ethoxylates. Regarding to the resultant latex, there were no obvious differences in foaming and viscosity for samples using different Levima LPS products. For the calcium ion stability,under the same dosage amount,LPS emulsifiers with higher EO numbers could give out better performance,and the calcium ion stability could also be improved if the amount of LPS emulsifiers were increased. The post addition of isotridecanol ethoxylates was helpful for the improvement of calcium ion stability,but the efficiency was weaker compared with the addition in polymerization process. Considering the different functions of LPS emulsifiers in polymerization and latex,LPS 3015 was recommend-ed to be used in polymerization in order to help reaction stability as well as calcium ion stability,while LPS 3040 acted better in post-addition.
Keywords：emulsion polymerizationnonionic emulsifierisotridecanol ethoxylatecalcium ion stability
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 5-9 )