Study on the Properties of Chemical Foaming Injection Molded Polyolefin/Chitosan Composites

Yao Tsung Lin; Chiu Lan Yang; Shyh Shin Hwang; Shu Mei Chen

doi:10.4028/p-oao5p9

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HomeMaterials Science ForumMaterials Science Forum Vol. 1064Study on the Properties of Chemical Foaming...

Study on the Properties of Chemical Foaming Injection Molded Polyolefin/Chitosan Composites

Abstract:

Chitosan is a biodegradable material with good biocompatibility. It can be used in medicine, foodstuff, the chemical industry and heavy metal adsorption. In this study, an exothermic foaming agent (Azodicarbonamide) injection molded was added to polypropylene (PP), maleic anhydride (MA) grafted PP (PPgMA) and Chitosan composites. MA served as a compatibilizer due to the poor bonding between PP and chitosan. This study investigated the effects of the modifier and chitosan loading on the tensile strength, thermal properties and morphology in chemical foam injection-molded PP and PPgMA composites. The results showed that the tensile strength decreased with the addition of chitosan, but Young’s modulus increased with the added chitosan loading. The enhancement was significant for foam injection molding. The cell size decreased and the cell density increased with the addition of chitosan for the PP/PPgMA composites. The thermogravimetric analysis (TGA) results showed that the thermal degradation could be decreased with the addition of chitosan in both the PP and PPgMA composites. The use of foamed chitosan composites will be further investigated in the removal of heavy metal in waste water.

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Periodical:

Materials Science Forum (Volume 1064)

Pages:

21-26

DOI:

https://doi.org/10.4028/p-oao5p9

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Online since:

June 2022

Authors:

Yao Tsung Lin, Chiu Lan Yang, Shyh Shin Hwang*, Shu Mei Chen

Keywords:

Chemical Foaming, Chitosan, Composites, Polypropylene, PPgMA

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