Compared study on the cellulose/CaCO 3 composites via microwave-assisted method using different cellulose types

作者：Ma M G^*; Fu L H; Sun R C; Jia N

来源：Carbohydrate Polymers, 2012, 90(1): 309-315.

DOI：10.1016/j.carbpol.2012.05.043

• Alkali extraction cellulose
• CaCO 3
• Cellulose
• Composites
• Microcrystalline cellulose
• Microwave

The purposes of this study were to explore the influences of different cellulose types on the cellulose/CaCO 3 composites, which were synthesized via the microwave-assisted method by using alkali extraction cellulose and microcrystalline cellulose, respectively. Experimental results demonstrated that the types of cellulose played an important role in the microstructure and morphologies of the cellulose/CaCO 3 composites. The composites consisted of cellulose and pure phase CaCO 3 (calcite). The sample synthesized using microcrystalline cellulose had better crystallinity than that of the sample using alkali extraction cellulose. The cellulose fibers and CaCO 3 particles were observed using alkali extraction cellulose. However, using microcrystalline cellulose instead of alkali extraction cellulose, the cellulose with irregular shape and CaCO 3 microspheres were obtained. Therefore, choosing appropriate cellulose types is very important for the formation of cellulose/CaCO 3 composites. Furthermore, the Raman spectra of the cellulose/CaCO 3 composites were also researched.

• 单位
  华南理工大学