Influence of synthetic polymers on the mechanical properties of hardened β-calcium sulfate hemihydrate plasters
| Autor: | Yongmei Xia, Hua-chun Wu, Ping-ping Zhou |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Gypsum Materials science Absorption of water General Chemical Engineering Calcium Sulfate Hemihydrate 0211 other engineering and technologies Mineralogy 02 engineering and technology Polymer engineering.material 021001 nanoscience & nanotechnology Flexural strength Chemical engineering chemistry 021105 building & construction Mechanical strength engineering 0210 nano-technology |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 33:355-361 |
| ISSN: | 1226-086X |
| DOI: | 10.1016/j.jiec.2015.10.024 |
| Popis: | Polymers have been used to modulate mechanical strengths and water absorption of construction or modeling materials as like gypsum. To understand the structure–performance relationship of polymers in hydration and properties of gypsum plaster, several designed carboxyl polyether sulfonates were investigated with comparison of some commercial polymers. It is found that bending strength of the hardened β-hemihydrate plaster is inversely proportional to number of carboxyl groups in the polymer that retards hydration. The mechanical strengths enhancement is coincident with acceleration of initial hydration, while decrease of mechanical strengths happened with retard of the hydration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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