The study of capillarity properties of bio-composites

Construmat 2018

Terpakova, E.^1 ; Stevulova, N.^1

Institute of Environmental Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, Kosice

042 00, Slovakia^1

关键词: Bio-based composites;    Capillary absorption;    Cellulosic fibers;    Comparative studies;    Composites material;    Physical parameters;    Research and development;    Thermal conductivity coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/385/1/012059/pdf
DOI  :  10.1088/1757-899X/385/1/012059

来源: IOP

【 摘 要 】

Composite materials demanded in various technical areas as well as civil engineering, have important influence on the progress in research and development of materials. Among other things, composites materials based on organic fibers, obtained from the processing of natural raw or as a product of recycling, have come to the fore in the last years. The results of the comparative study of the physical parameters (density, thermal conductivity coefficient and water absorption behaviour) of the bio-based composite are presented after 28 days of setting and hardening. The ability of the material to receive and retain water in the pore system is also very important, so parameters such as absorption and capillary absorption are also studied. Results are discussed in terms of impact of individual content of cellulosic fibers in each other properties of composite materials. Density results showed an improvement in the values with the increasing weight % fiber in composites for both types of fiber. Also, an improvement in thermal conductivity has been demonstrated, confirming the possibility of applying composites to the insulating elements. However, the results of absorption and capillary absorption imply the need to optimize the technology of preparation and surface treatment of composites.