Effect of Ageing on Hemp Waste/Polyethylene Composites Surface Properties
19th International Scientific Conference "Economic Science for Rural Development 2018": Proceedings. No.48 2020
Zane Zelča, Silvija Kukle, Jānis Kajaks, Ieva Baķe

The research focuses on 40 wt % hemp reinforced polyethylene (LLDPE) aged composite surface properties. The increased use of natural components-reinforced composites in an outdoor environment has led to questions concerning the environmental durability of these materials. As a reinforcing component chemically modified hemp first processing waste was used. The waste was treated with alkali, silanized and the surface was modified with a sol-gel method. For some composites the additives have been added during the manufacturing process. UV ageing was performed according to the standard ASTM G154. UV radiation has a crucial influence on the physical properties and visual changes of the polyethylene matrix. The composite samples have become brighter and micro-hardness has decreased, cracks and cavities on the surface of the composite were observed after ageing.


Atslēgas vārdi
composite ageing, surface micro-hardness, hemp waste, polyethylene
DOI
10.22616/ERDev2020.19.TF048
Hipersaite
http://www.tf.llu.lv/conference/proceedings2020/Papers/TF048.pdf

Zelča, Z., Kukle, S., Kajaks, J., Baķe, I. Effect of Ageing on Hemp Waste/Polyethylene Composites Surface Properties. No: 19th International Scientific Conference "Economic Science for Rural Development 2018": Proceedings. No.48, Latvija, Jelgava, 20.-22. maijs, 2020. Rīga: Latvia University of Life Sciences and Technologies, 2020, 204.-211.lpp. ISSN 1691-5976. Pieejams: doi:10.22616/ERDev2020.19.TF048

Publikācijas valoda
English (en)
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