Abstract:Synthetical thickener is very popular used all of the world at present. Polyacrylic acid thickener maded in inverse emulsion polymerization is much better than any other in this area. This paper introduces the craft of how to produce Polyacrylic acid thickener with polyacrylic acid、NaOH 、MBAM、TX-10 and so on. Also we researched relationship between thickening properties of polyacrylic acid、 chemistry course and time, amount of Span80、TX-10 、MBAM and so on. In this experiment we found, when we reduce the time of N2, the chemistry course would start later even the chemistry course couldn’t start. There was no effect on thickening properties of polyacrylic acid when the time of chemistry course runs over one hour. The speed of thickening of polyacrylic acid improved when we added the amount of TX-10, but it didn’t affect properties of polyacrylic apparently. The result of gel had something about with amount of MBAM. Increase the amount of MBAM could improve thickening properties of polyacrylic acid. Additionally, we tried another project with oxidation - reduction reaction. We found the reaction carry out mildly, and the time before start chemistry course is also short. And the temperature of course improves much slower than any other reactions, so it is easy to control. It is also found that the electrolyte sexual tolerance of the thickener is bad without adding the macromer into the thickener.
The electrolyte sexual tolerance of the thickener can be improved apparently by the introduction of macromer synthesized by maleic anhydride and fatty alcohol polyoxyethylene.
Keywords:Polylacrylic acid; Inverse emulsion polymerization; Oxidation - reduction reaction; Thickening properties