Preparation and characteristics of moulded biodegradable cellulose fibers/MPU-20 composites (CFMCs) by steam injection technology |
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Authors: | Detao Liu Jun Li Rendang Yang Lihuan Mo Lianghui Huang Qifeng Chen Kefu Chen |
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Affiliation: | aGuangdong Public Laboratory of Paper Technology and Equipment, South China University of Technology, Guangzhou 510640, China;bState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China |
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Abstract: | In this work, the moulded cellulose fibers/MPU-20 composites (CFMCs) with apparent specific gravity lower than 100 kg/m3 and thickness of 20–200 mm have been successfully manufactured using a new design of steam injection technology and equipment. It was found that the CFMCs have good cushioning properties, with a cushion factor lower than 4. Two yield deformation stages were observed in the compressive process. Compressive stress–strain and cushion factor-stain curves were measured as a function of steam injection pressure, transmission time, holding time, MPU-20 resin dosage and apparent specific gravity. Chemical groups, crystallinity, and thermal properties of samples were studied through the use of FTIR spectroscopy, X-ray diffraction (XRD), and DTA–TGA. In addition, the microstructure and morphology were investigated by scanning electron microscope (SEM) and atomic force microscope (AFM). |
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Keywords: | Cellulose fibers/MPU-20 composites (CFMCs) Self-designed steam injection technology and equipment Cushioning properties Physicochemical characteristics |
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