FIELD: chemistry.
SUBSTANCE: invention relates to chemical industry for producing heat-resistant highly porous articles from silicon carbide, which are used as filters, heat insulation, absorbents. Polymer composition for producing silicon carbide of stoichiometric composition in form of finished porous articles contains powdered phenol binder based on novolac phenol-formaldehyde resin and urotropin, lubricant in form of zinc stearine or zinc stearate, and a silicon dioxide support, in form of ground quartz fibre from industrial wastes of their production, in following ratio of components, wt%: ground quartz fibre - 45.2-48.7; phenol binder - 46.1-52.0; lubricant - 2.0-5.5.
EFFECT: invention widens raw material sources for producing silicon carbide, improves chemical purity of finished product, as well as rational use of industrial wastes for production of quartz fibre.
1 cl, 1 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OBTAINING SILICON β-CARBIDE | 2013 |
|
RU2542275C1 |
| METHOD OF PRODUCING β-SILICON CARBIDE | 2011 |
|
RU2472703C2 |
| POLYMER COMPOSITION FOR PRODUCING NIOBIUM AND TANTALUM CARBIDES AND SOLID SOLUTIONS THEREOF | 2013 |
|
RU2537595C2 |
| METHOD FOR PRODUCING COMPOSITE POWDER MB2-SIC, WHERE M = ZR, HF | 2016 |
|
RU2615692C1 |
| SULPHUR-POLYMER COMPOSITE MATERIAL AND METHOD FOR PRODUCTION THEREOF | 2023 |
|
RU2817983C1 |
| METHOD OF PRODUCTION OF METALLIC SILICON | 1999 |
|
RU2160705C2 |
| METHOD OF 3D PRINTING ON REFRACTORY ARTICLES | 2013 |
|
RU2535704C1 |
| METHOD OF OBTAINING NANOSTRUCTURED SILICON-CARBIDE CERAMICS | 2014 |
|
RU2556599C1 |
| METHOD FOR OBTAINING HIGHLY-DISPERSIBLE REFRACTORY CARBIDES FOR COATING AND COMPOSITES BASED THEREON | 2007 |
|
RU2333888C1 |
| CARBON-CONTAINING COMPOSITION FOR PRODUCING REACTION-BONDED SILICON CARBIDE | 2012 |
|
RU2514041C2 |
