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- Title
Technological factors in TBA-aqueous based gel-casting.
- Authors
LEI Yinyuan; LU Zhihua; ZHAI Qianqian; FENG Yajing; YU Ying; LI Yihan
- Abstract
Using acrylamide as monomer, gel-casting was enforced with a mixture of tert-butyl alcohol (TBA) and water as a solvent. The effects of TBA ratio, reaction temperature, the addition of the initiator and catalyst on the gelation time and colloidal form were investigated. The results showed that the gelation time increased with the increase of TBA ratio, but decreased significantly with the increase of reaction temperature. With the increase of the initiator content, gelation time significantly reduced to a certain level and remained stable, but increased linearly when the dosage of the initiator was continuously increased. The gelation time decreased with the increase of catalyst dosage, which changed significantly when the catalyst dosage was low. When the reaction temperature was 25 °C, TBA ratio was 30 vol%, initiator was 2.5wt%, catalyst was 0.1wt% and the gelation time was 25 min, the surface quality of the sample was good and the drying shrinkage was low, which could meet the needs of engineering applications.
- Publication
Journal of Functional Materials / Gongneng Cailiao, 2019, Vol 59, Issue 11, p11178
- ISSN
1001-9731
- Publication type
Article
- DOI
10.3969/j.issn.1001-9731.2019.11.030