Effect of Surfactant Type and Concentration on Surfactant Migration, Surface Tension, and Adhesion of Latex Films
| Autor: | Morteza Ebrahimi, Manouchehr Khorasani, H. Salehi-Mobarakeh, N. Shirakbari |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Nonylphenol ethoxylate
Materials science Polymers and Plastics Ethylene oxide Sodium chemistry.chemical_element Emulsion polymerization General Chemistry Adhesion Condensed Matter Physics Surface tension chemistry.chemical_compound chemistry Pulmonary surfactant Chemical engineering Polymer chemistry Materials Chemistry Sulfate |
| Zdroj: | Journal of Macromolecular Science, Part B. 53:1286-1292 |
| ISSN: | 1525-609X 0022-2348 |
| DOI: | 10.1080/00222348.2014.901876 |
| Popis: | The effect of surfactant type and concentration on the migration behavior of surfactant in a latex film was investigated. Two types of surfactant, including an anionic (sodium lauryl sulfate, SLS) and a non-ionic (nonylphenol ethoxylate, average number of ethylene oxide units = 40, NP-40) surfactant, were used in an emulsion polymerization of methyl methacrylate butyl acrylate copolymer (MMA–BA). The total amount of surfactant was varied in three levels, i.e., 1.5, 3, and 4.5 wt%, and the surfactants were used both pure and in a mixture state. The surfactant migration to the film–air (F–A) and film–substrate (F–S) interfaces of the latex films was determined by using an attenuated total reflection-Fourier transform infrared (ATR-FTIR) method. In addition, the adhesion of the latex films to glass substrates was measured by a pull-off test. The results showed that the migration of anionic surfactant to the interfaces was greater than the non-ionic one. It was also found that the use of non-ionic surfactant ... |
| Databáze: | OpenAIRE |
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