In this work, sugar beet pulp (SBP), the residue remaining after sugar extraction, was first turned into a thermoplasticlike compound by extrusion in the presence of water and glycerol. The resulting thermoplastic SBP (TSBP) was then blended with poly(butylene adipate-co-terepthalate) (PBAT) and extruded into sheets in a single process. The effects of polymeric diphenyl methane diisocyanate (pMDI) as compatibilizer and TSBP content on rheological properties, phase morphology, mechanical properties, and water absorption of the extruded sheets were studied. In comparison, dried SBP powder was also blended with PBAT by extrusion. It was found that when SBP was used as a plastic in compounding, it yielded blends with much finer dispersion of the SBP phase than when SBP was used as a filler in compounding. The dispersion of SBP in the blends was greatly improved with the addition of pMDI. The PBAT/SBP blends with fine phase morphology showed enhanced mechanical properties and moisture resistance.
The compressive experimental produce is assigned to measure the compressive force, moving compressive length and their time consumption for the purpose of obtaining the quality and economical solid fuel briquette of rice and soybean straw. The two compressive processes are proposed in the analysis of the first compressive process. The results show that for the rice straw, the second compressive process is favorable for fabricating solid fuel briquette. While the hard soybean stems are intend to become the soft stems due to the presentation of broken stems under the high compresses in the first compressive process. The experiment reveals that the soft and hard stems of biomass feedstock shows the different properties which should be paid vital attention when design the pelletisers.
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