Inicio  /  Coatings  /  Vol: 11 Par: 5 (2021)  /  Artículo
ARTÍCULO
TITULO

Development of New Composite Products Based on Flax Fibres

Daniela-Roxana Tamas-Gavrea    
Raluca Istoan    
Ancuta Elena Tiuc    
Tünde-Orsolya Dénes    
Ovidiu Vasile and Horia Constantinescu    

Resumen

Plant fibres are materials that can increase energy savings, and they are being analysed for their reduced environmental impact. In this paper, three types of multi-layered panels were developed as environmentally friendly flax fibre-based products for building industry applications. The structural build-up of the panels is such that one layer of waste flax fibre was used as the core material in order to reduce the weight of the structure between two rigid perlite-based layers. The perlite was used in three varied grain sizes, resulting in three types of panels (S1, S2, S3). The mechanical, thermal and acoustic properties were recorded for all specimens. The influence of the perlite particles? size, perforation diameter and perforation percentage of the multi-layered panels on the acoustic absorption properties was analysed and discussed. Summarising the results, the multi-layered composite panel S3 presented the best performance in regard to compressive strength and thermal conductivity, with S2 presenting the best bending strength. From the acoustic point of view, for the unperforated panels, the highest values of the sound absorption coefficient were obtained at 500 Hz for S1, a = 0.95, 315 Hz for S2, a = 0.89 and 400 Hz for S3, a = 0.84. The obtained values of the sound absorption coefficients were increased through the varied perforation diameters and percentages of the panels? front face.

 Artículos similares

       
 
James B. Rosenzweig, Gerard Andonian, Ronald Agustsson, Petr M. Anisimov, Aurora Araujo, Fabio Bosco, Martina Carillo, Enrica Chiadroni, Luca Giannessi, Zhirong Huang, Atsushi Fukasawa, Dongsung Kim, Sergey Kutsaev, Gerard Lawler, Zenghai Li, Nathan Majernik, Pratik Manwani, Jared Maxson, Janwei Miao, Mauro Migliorati, Andrea Mostacci, Pietro Musumeci, Alex Murokh, Emilio Nanni, Sean O?Tool, Luigi Palumbo, River Robles, Yusuke Sakai, Evgenya I. Simakov, Madison Singleton, Bruno Spataro, Jingyi Tang, Sami Tantawi, Oliver Williams, Haoran Xu and Monika YadavaddShow full author listremoveHide full author list    
Recently, considerable work has been directed at the development of an ultracompact X-ray free-electron laser (UCXFEL) based on emerging techniques in high-field cryogenic acceleration, with attendant dramatic improvements in electron beam brightness and... ver más
Revista: Instruments

 
Pietro Roncioni, Marco Marini, Oscar Gori, Roberta Fusaro and Nicole Viola    
The request for faster and greener civil aviation is urging the worldwide scientific community and aerospace industry to develop a new generation of supersonic aircraft, which are expected to be environmentally sustainable and to guarantee a high-level p... ver más
Revista: Aerospace

 
Francisco Javier Gutiérrez Ortiz and F. López-Guirao    
The specific application of this work is the effective energy integration of thermochemical processes dealing with nonconventional solids, such as solid biomass, in process simulation under chemical equilibrium so that all heat exchangers can be placed a... ver más
Revista: Applied Sciences

 
Zhi Dou, Xin Huang, Weifeng Wan, Feng Zeng and Chaoqi Wang    
Hydraulic conductivity generally decreases with depth in the Earth?s crust. The hydraulic conductivity?depth relationship has been assessed through mathematical models, enabling predictions of hydraulic conductivity in depths beyond the reach of direct m... ver más
Revista: Water

 
Peijie Yang, Jie Xue and Hao Hu    
With the significant role that Unmanned Surface Vessels (USVs) could play in industry, the military and the transformation of ocean engineering, a growing research interest in USVs is attracted to their innovation, new technology and automation. Yet, the... ver más