Experimental investigation of new biocomposite with low cost for thermal insulation

Chikhi, Mourad; Agoudjil, Boudjemaa; Boudenne, Abderrahim; Gherabli, Abdelkader

doi:10.1016/j.enbuild.2013.07.019

Cited by 194 publications

(131 citation statements)

References 23 publications

Supporting

Mentioning

119

Contrasting

Unclassified

Order By: Relevance

“…Estimated data indicates that production and application of biodegradable polymers in different branches of industry will grow by over 30 % annually (Shen et al 2009). Therefore, searching for new biodegradable polymers and biocomposites with tailored performance properties Kwiecien et al 2014) and reasonable price (Chikhi et al 2013;Korol et al 2015a;Sałasińska and Ryszkowska 2015) received attention nowadays in many academic and industrial scientific centers all over the world.…”

Section: Introductionmentioning

confidence: 99%

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

et al. 2016

View full text Add to dashboard Cite

In this work, wheat bran was used as cellulosic filler in biocomposites based on natural rubber. The impact of wheat bran content [ranging from 10 to 50 parts per hundred rubber (phr)] on processing, structure, dynamic mechanical properties, thermal properties, physico-mechanical properties and morphology of resulting biocomposites was investigated. For better characterization of interfacial interactions between natural rubber and wheat bran, achieved results were compared with properties of biocomposites filled with commercially available cellulosic fillers-wood flour and microcellulose. It was observed that wheat bran, unlike commercial cellulosic fillers, contains high amount of proteins, which act like plasticizers having profitable impact on processing, physical, thermo-mechanical and morphological properties of biocomposites. This is due to better dispersion and distribution of wheat bran particles in natural rubber, which results in reduction of stiffness and porosity of the biocomposites. Regardless of cellulosic filler type, Wolff activity coefficient was positive for all studied biocomposites implying reinforcing effect of the applied fillers, while tensile strength and elongation at break decreased with increasing filler content. This phenomenon is related to restricted strain-induced crystallization of NR matrix due to limited mobility of polymer chains in the biocomposites. Furthermore, this explains negligible impact of particle size distribution, chemical composition and crystallinity degree of applied cellulosic filler on static mechanical properties of highlyfilled NR biocomposites. The conducted investigations show that wheat bran presents interesting alternative for commercially available cellulosic fillers and could be successfully applied as a low-cost filler in polymer composites.

show abstract

Section: Introductionmentioning

confidence: 99%

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The thermal conductivity of the bulk cake and of the twelve fiberboards was also clearly influenced by their density, and it tended to increase with increasing density (Figure 4a). Similar characteristics have been observed on several occasions, in particular for insulation boards made from durian peel and coconut coir (Khedari et al, 2003(Khedari et al, , 2004, wastes from tissue paper manufacturing and corn peel (Lertsutthiwong et al, 2008), cotton stalk fibers (Zhou et al, 2010), coconut husk and bagasse (Panyakaew & Fotios, 2011), sunflower pith (Vandenbossche et al, 2012, hemp fibers (Benfratello et al, 2013), date palm fibers (Chikhi et al, 2013), and sunflower cake from whole plant (Evon et al, 2014). At the same time, the thermal resistance logically decreased (Figure 4b), and these trends were observed at all three temperatures.…”

Section: Influence Of Molding Conditions On Heat Insulation Propertiementioning

confidence: 61%

“…The thermal conductivity of insulation boards is often influenced by their densities (Khedari et al, 2003(Khedari et al, , 2004Lertsutthiwong et al;Zhou et al, 2010;Panyakaew & Fotios, 2011;Vandenbossche et al, 2012;Benfratello et al, 2013;Chikhi et al, 2013), and low-density materials have the lowest thermal conductivities. As an example, the thermal conductivity of an insulation board from sunflower pith is only 38.5 mW/m K at 25 °C with a board density of 36 kg/m 3 (Vandenbossche et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…As an example, the thermal conductivity of an insulation board from sunflower pith is only 38.5 mW/m K at 25 °C with a board density of 36 kg/m 3 (Vandenbossche et al, 2012). It is comparable to that of conventional insulation of 250-350 kg/m 3 (Panyakaew & Fotios, 2011), 81.5 mW/m K for a cotton stalk fibers insulation board with a board density of 450 kg/m 3 (Zhou et al, 2010), 89.9-107.9 mW/m K for hemp fibers insulation boards with board densities of 369-475 kg/m 3 (Benfratello et al, 2013), 103.6 mW/m K for a coconut coir insulation board with a board density of 540 kg/m 3 (Khedari et al, 2003), and 150 mW/m K for a date palm fibers insulation board with a board density of 754 kg/m 3 (Chikhi et al, 2013). Nevertheless, such boards are viable options for use in building insulation (walls and ceilings).…”

Section: Introductionmentioning

confidence: 99%

“…Insulation boards can be made from maize husks and cobs (Sampathrajan et al;, 1992;Pinto et al, 2011;Paiva et al, 2012), a mixture of durian peels and coconut coir fibers (Khedari et al, 2003(Khedari et al, , 2004, cellulose (Nicolajsen, 2005), wastes from tissue paper manufacturing and corn peel (Lertsutthiwong et al;, kenaf fibers (Ardente et al, 2008), flax and hemp fibers (Kymä lä inen & Sjöberg, 2008;Korjenic et al, 2011;Benfratello et al, 2013), cotton stalk fibers (Zhou et al, 2010), jute fibers (Korjenic et al, 2011), coconut fibers (Panyakaew & Fotios, 2011;Alavez-Ramirez et al, 2012), sunflower pith (Vandenbossche et al, 2012), date palm fibers (Chikhi et al, 2013), etc.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New insulation fiberboards from sunflower cake with improved thermal and mechanical properties

Evon

Vinet²,

Rigal³

et al. 2015

JAS

View full text Add to dashboard Cite

New thermal insulation fiberboards were manufactured by compression molding from a cake generated during the sunflower biorefinery. Fiberboards were cohesive mixtures of a natural binder and lignocellulosic fibers from sunflower cake. The natural binder ensured the board cohesion, and fibers acted as reinforcing fillers. The influence of molding conditions, i.e. binder type and binder content, on board density, mechanical and heat insulation properties was examined. The medium-density board containing 20% starch-based binder was a good compromise between mechanical and heat insulation properties (78 mW/m K thermal conductivity). It could be positioned on walls and ceilings for thermal insulation of buildings.

show abstract

A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

Hage

Khalaf

Lacoste

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

The main objective of this study is devoted to the development of new insulating and ignifuged miscanthus fibers (Mf)/recycled textile fibers (RTf) reinforced biocomposites (BCs) using chitosan as polysaccharide‐based binder and aluminum trihydroxide (ATH) fillers while focusing on the fire behavior. To achieve this goal, a preliminary study was carried out on flame retarded chitosan‐based films with various ATH‐filler ratios (20, 33, 50, and 60 wt %). ATG and pyrolysis‐combustion flow calorimeter analysis showed significant improvement of chitosan thermal behavior with the addition of 33 wt % and above of ATH. Mechanical properties of films were, however, degraded. Thereafter, different ratios of miscanthus/RTf reinforced BCs (fibers content up to 89.5–90 wt %) were elaborated through thermocompression process using neat chitosan and chitosan/ATH (67/33 wt %) as a binder. Mechanical, thermal, and fire behavior were evaluated. Higher mechanical properties were found for hybrid materials containing the association of both RTf and Mf in comparison to those containing only RTf or Mf. Fireproof BCs (E rating: according to the NF EN ISO 11925‐2), with thermal conductivity values between 0.07 and 0.09 W m−1 K−1 and density range between 270 and 299 kg m−3 were successfully elaborated. The results of this study show a promising use of the chitosan/ATH system as flame retardant for biobased insulating building materials. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47306.

show abstract

Experimental investigation of new biocomposite with low cost for thermal insulation

Cited by 194 publications

References 23 publications

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

Processing and structure–property relationships of natural rubber/wheat bran biocomposites

New insulation fiberboards from sunflower cake with improved thermal and mechanical properties

A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites

Contact Info

Product

Resources

About