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| Temperature Control of the Production Process of AmPAM as Dry-strength Agents |
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| DOI：10.11980/j.issn.0254-508X.2014.12.004 |
| Key Words:polymerization temperature AmPAM apparent viscosity strengthening effect |
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| Abstract:Radical polymerization is known as a complicated and intense exothermic reaction. Temperature control is essential to the polymerization process, and also is the difficulty and key point in industrial production. The experiment found that decreased reaction concentration and increased initiation temperature could significantly decrease the generation of reaction heat. Increasing the temperature in the temperature maintaining stage raised the growth speed of the apparent viscosity of the product. Meanwhile the residual monomer content of the system reduced, the molecular weight of the product increased, together with its strengthening effect. However higher viscosity was adverse to its preparation and usage. The optimal product viscosity was considered to be 20000 mPa·s. The product performances were verified superior to several common dry strength agents in the market. |
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