Effect of Shell Composition on Pyrolysis Kinetics Characteristics of Core-shell Structured Bamboo Plastic Composites

doi:10.19491/j.issn.1001-9278.2018.01.009

Abstract

Abstract: This paper reported an investigation on pyrolysis characteristics of core-shell structured bamboo-plastic composites (BPC) prepared by a co-extrusion processing method. These BPC were constituted by a core layer of high-density polyethylene (PE-HD)/bamboo residue fiber composite and four types of shells including pristine PE-HD/bamboo pulp fiber composite, PE-HD/nano-CaCO3 compound and PE-HD/white mud composite. The pyrolysis characteristics of BPC were evaluated by thermogravimetric analysis at different heating rates, and their pyrolysis kinetics was analyzed by Coats-Redferm‘s and Flynn-Wall-Ozawa‘s models. The results indicated that the thermal stability of BPC was improved in the presence of PE-HD/nano-CaCO3 and PE-HD/white mud shells, however, the formation of PE-HD/bamboo pulp fiber shell exhibited few effects on their thermal stability. Moreover, the apparent activation energy of BPC presented a slight change with addition of 10 wt % bamboo pulp fiber, nano-CaCO3 and white mud into their shell.

CLC Number:

TQ325.1+2

References

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