Physic-Mechanical Properties of Composites Based on Secondary Polypropylene and Dispersed of Plant Waste

Abstract:

The physic-mechanical properties of filled composites based on secondary polypropylene are investigated. As fillers the dispersed wastes of processing of agricultural plants - buckwheat and oat husk, as well as needles flour and wood flour were used. Water absorption, abrasion, impact strength and bending strength of composites were investigated. It has been proven that oat and buckwheat husks can be effectively used in composites based on secondary polypropylene and replace traditional wood fillers. It has been shown that the physic-chemical properties of the filled composites depend on the structure and physicochemical interactions on the phase separation surface, as well as on the surface properties of the filler particles. It is established that for the production of filled composites with improved physic-mechanical characteristics it is necessary to use fillers with small specific surface and concentration of surface functional groups, and the acid-base characteristic of the surface should be closer to neutral. It is shown that these conditions provide for the formation of a uniform structure of the filled composite with less internal stresses.

• Periodical: Materials Science Forum (Volume 1006)
• Pages: 227-232
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1006.227
• Online since: August 2020
• Authors: Yuliya Danchenko*, Artem Kariev, Vladimir Lebedev, Elena Barabash, Tatyana Obizhenko
• Keywords: Buckwheat Husk, Needle Flour, Oat Hulls, Physic-Mechanical Properties, Plant Waste, Polymer Composite, Secondary Polypropylene, Wood Flour

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