Processing and Properties of Low Cost Corn Gluten Meal/Wood Fiber Composite
| Autor: | and Hiroshi Sakabe, Qiangxian Wu, Seiichiro Isobe |
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| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Industrial & Engineering Chemistry Research. 42:6765-6773 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | Corn gluten meal (CGM)/wood fiber composites, plasticized by glycerol, water and ethanol, were extruded into pellets, and then the pellets were compression-molded into sheets for evaluation of water resistance, thermal stability and morphology. Pellets were also injection-molded to prepare plant pots for developing low cost, biodegradable containers used in agriculture. Ethanol played an important role for preparing homogeneous pellets under a condition of low specific mechanical energy. Extrusion, compression and injection-molding showed a similar trend that melt viscosity increased with the increasing wood fiber content and with decreasing water content. The trend led to a decrease in melt fluidity. The acceptable injection molding temperature range is from 125 to 160 °C, depending on the water content and wood fiber content in the pellets. Flexural strength of molded sheets was improved by 10−30% wood fiber but reduced by 40−50% wood fiber, which was a result of a change in the breaking mechanism. Visu... |
| Databáze: | OpenAIRE |
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