FIELD: foundry, possibly evaluation of quality of binder for making ceramic shell molds.
SUBSTANCE: method comprises steps of using hydrolyzed ethylsilicate with mean weight values of molecular masses in range 900 - 1700 g/mol for preparing binder; determining molecular-mass dispersion of olygomers of etoxysiloxan in alcohol solution of hydrolyzed ethyl silicate at separation with use of exclusive chromatography; filling high-effective chromatographic columns with highly cross-linked polymer sorbent, namely with polydivinylbenzene.
EFFECT: possibility for making high-quality ceramic shell molds due to controlling olygomer composition of hydrolyzed ethyl silicate.
2 cl, 2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING MOLECULAR MASS DISTRIBUTION OF ETHOXYSILOXANE OLIGOMERS IN HYDROLYZED AND NONHYDROLYZED ETHYL SILICATES | 2004 |
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