What is the polymerization process of lotion? Let's have a look at the knitting tape of acrylic lotion supplier!
1. Latex particle generation stage: in the water dispersion system with emulsifiers and a small amount of monomers, the number of micelles in the acrylic acid lotion is far more than the number of monomer droplets, so the water-soluble initiator initiates polymerization in the water phase, the concentration of monomers in the water is low, the monomer free radicals formed will also enter into the solubilized micelles to grow, and the solubilized micelles will become monomer polymer latex particles. At the end of this stage, the micelles will disappear, All latex particles are formed.
2. Uniform polymerization stage: in this stage, the number of latex particles that have been generated is constant, the monomer concentration in the latex particles is also constant, the termination of initiator in the particles is dominant, the termination in the aqueous phase can be omitted, and the desorption rate of free radicals can be ignored when compared with the adsorption rate. This stage is from the end of the first stage until the monomer droplets disappear, which is an important stage in the polymerization process.
3. Speed reduction stage: at the initial stage, the monomer concentration of latex particles decreased very slowly, while the volume of latex particles not only did not decrease, but also increased with the increase of conversion rate; When the monomers dissolved in the aqueous phase are exhausted, the concentration of monomers in the latex particles gradually decreases with the increase of conversion; With the increase of conversion rate, the concentration of monomer in latex particles began to decline rapidly. At the same time, because the density of polymer is higher than that of monomer, the volume of latex particles will shrink slightly with the increase of conversion rate. At this stage, the concentration of monomer in latex particles will continue to decline. Due to the increase of viscosity and the slowing of termination rate, automatic acceleration will occur.
The polymerization process of acrylic acid lotion is introduced here. Due to the differences in raw materials and proportions, the performance of the lotion is different, and the subsequent uses are also different. In addition, the wholesale price of acrylic acid lotion is affordable, so you can buy it quickly.
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