Effect of wheat husk surface pre-treatment on the properties of husk-based composite materials

Hýsek, Štěpán; Podlena, Milan; Bartsch, Henry; Wenderdel, Christoph; Böhm, Martin

doi:10.1016/j.indcrop.2018.08.035

Cited by 47 publications

(35 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, both hydrothermal and plasma pre-treated wheat husk did not cause statistical significant differences in fluorescence lifetime when compared with reference materials. The higher lignin content in alkaline pretreated wheat husk (as reported) is responsible for the lowest fluorescence lifetime [123]. It was further confirmed by the highest peak of alkaline pre-treated husks in the normalized photon count of fluorescence decay curve.…”

Section: Life Cycle Of Straw Fibres Bio-composite Boardssupporting

confidence: 68%

“…The inner voids in BCB were reduced at high concentrations of wheat fibre, thereby enabling production of lightweight materials with outstanding mechanical properties. Stepha et al, also observed the lowest density in alkaline treated husks despite its higher thickness compared to the reference materials [123]. It is interesting to know that straw fibres also possessed good drilling abilities in addition to lightweight, making it easy to couple into certain shape for specific application.…”

Section: Fibre Typementioning

confidence: 95%

“…It could be suggested that sizing treatment of corn fibre could be a promising method to produce high performance thermal insulator [140]. Similarly, surface treated wheat husk fibre BCB exhibited thermal conductivity as low as 0.0714 W m −1 K −1 [123]. Interestingly, the wheat fibre chaff showed excellent thermal conductivity coefficient under steady-state and dynamic conditions (0.307 W m −1 K −1 and 0.298 W m −1 K −1 , respectively) [141].…”

Section: Fibre Typementioning

confidence: 99%

See 2 more Smart Citations

Key advances in development of straw fibre bio-composite boards: An overview

Aladejana

Fan

2020

Mater. Res. Express

View full text Add to dashboard Cite

In recent years, considerable attention have been given to the development and utilization of biodegradable fibres for bio-composite boards. This is due to the increase in the environmental consciousness and the need for sustainable development which enable establishment of new materials majorly for packaging, aircraft, furniture, and automobile. Straw fibres (wheat, rice, and corn fibre) are the most available natural agricultural wastes products, which has been utilized for the production of these new materials. This paper hence reviews the enhancement in production methodology and properties of the straw fibres bio-composite boards to add further scientific knowledge to the potentiality of using agricultural fibres as value added products. The future replacement of conventional wood fibres for the production of bio-composite panels, especially with agricultural wastes, could be centered on straw fibres. The introduction of straw fibres in polymer matrices were presented based on various research outcomes. Biodegradable fibres could be regarded as a good fibrous composite material. Although, more efforts are still needed in developing facile straw fibre composite production methods and materials with robust industrial and domestic applications.

show abstract

Section: Life Cycle Of Straw Fibres Bio-composite Boardssupporting

confidence: 68%

Section: Fibre Typementioning

confidence: 95%

Section: Fibre Typementioning

confidence: 99%

See 1 more Smart Citation

Key advances in development of straw fibre bio-composite boards: An overview

Aladejana

Fan

2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Based on the literature search and our previous work it can be stated that some treatment methods influence surface energy of treated particles and consequently the adhesion and particleboard properties. The properties of the produced particle boards have already been published in our earlier work [8,11,12,16,17]. We are hypothesing that all conducted treatments effected morphology of treated particles on microscopic level and adhesive dispersion on the particle surface.…”

Section: Introductionmentioning

confidence: 85%

“…However the final mechanical properties (internal bonding or bending strength) depend not only on the surface energy of treated particles. For example, alkaline treatment increased the surface energy of treated particles and improved substantially the adhesion [8,11,12], however it was too aggressive, and celluloses in the treated material degraded and the final mechanical properties decreased.…”

Section: Introductionmentioning

confidence: 99%

Influence of Lignocellulosic Waste Pre-Treatment on the Characteristics of Bond Rupture

2019

Self Cite

View full text Add to dashboard Cite

Post-harvest crop residues are an interesting raw material for the production of composite materials. However, their surface often contains waxy and siliceous substances, which can cause adhesion problems. Therefore, various surface pre-treatment methods have been developed to increase the surface tension of these particles and hence to improve adhesive adhesion. The influence of hydrothermal, chemical, plasma and enzymatic treatment was investigated. The aim of the paper is to evaluate the effect of pre-treatments of post-harvest crop residues on the nature of joint failure and adhesive dispersion on the particles. The evaluation is based on microscopic analysis of particles obtained from the rupture area after internal bonding tests. The nature of bond failure and adhesive dispersion on the particle surface is evaluated. The results show a clear influence of material pre-treatment on the failure bond of the bond and, to a large extent, correlate with the mechanical properties of composites published in previous studies. The most suitable treatment appears to be a plasma treatment at a properly adjusted intensity. Conversely, the unsuitable treatment was alkaline, which, although it increased adhesion, deteriorated the overall mechanical properties. Hydrothermal treatment could be also considered as an industrially suitable method.

show abstract

Carbon derived from treated rice husk as fuel for direct carbon fuel cells

Yue

Cui

Wei

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary Direct carbon fuel cell (DCFC), as an environmentally friendly technology, strives to reduce polluting gas emissions, in the meanwhile, which can raise the value of preferably sustainable resources. In this work, an abundant and cheap resource‐rice husk is selected as fuel and treated with HCl, citric acid, and NaOH to evaluate the application in Solid Oxide (SO)‐DCFC. Co‐treatment of acid and alkali removes the ash and increases the carbon content of rice husk, and also introduces the oxygen‐containing functional groups on the surface, thus cell performance is enhanced. In particular, the cell using acid and alkali co‐treated husk carbon is capable of operating up to 100 hours under 0.7 V at 750°C.

show abstract

Effect of wheat husk surface pre-treatment on the properties of husk-based composite materials

Cited by 47 publications

References 45 publications

Key advances in development of straw fibre bio-composite boards: An overview

Key advances in development of straw fibre bio-composite boards: An overview

Influence of Lignocellulosic Waste Pre-Treatment on the Characteristics of Bond Rupture

Carbon derived from treated rice husk as fuel for direct carbon fuel cells

Contact Info

Product

Resources

About