POLYVINYL BUTYRAL
| Product description: | It is a polyvinyl butyral resin that is used as temporary binder for manufacturing metal powder granules. | ||
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| Application: | It is a fine-grained and free-flowing powder. Before processing, it has to be dissolved in specific solvents such as ethanol, butanol, etc. The solution is then mixed with metal powders and/or with diamonds for production of granules. The granules are thereafter submitted to cold pressing before sintering. | ||
| Advantages: |
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| Physical Properties: | Color | white | |
| Molar Mass MW (g/mol) | 57.000 | ||
| Density at 20 °C (g/cc) | ca 1.1 | ||
| Dynamic viscosity (mPa.s) | Höppler, DIN 53015 | ||
| – Ethanol 10% sol/20 °C | 35-60 | ||
| – n-butanol 5% sol/20 °C | – | ||
| – n-butanol 10% sol/20 °C | 90-150 | ||
| Softening range (°C) | DIN ISO 4625 | ca 150 | |
| Solubility: | Unlimited in following alcohols: | methanol, ethanol, propanol, i-propanol, butanol, i-butanol, diacetone alcohol and benzyl alcohols | |
| Unlimited in following glycols ethers: | 1-methoxy propanol-2, butyl glycol and methoxy butanol (3-methoxy butanol-1) | ||
| Limited in following Ketones: | 1-methoxy propanol-2, butyl glycol and methoxy butanol (3-methoxy butanol-1) | ||
| Packaging: | Bags of 15 kg. | ||