Hyperstable and compressible plant fibers/chitosan aerogel as portable solar evaporator

Solar Energy ◽  
2022 ◽  
Vol 231 ◽  
pp. 828-836
Author(s):  
Xi Lu ◽  
Jiebin Tang ◽  
Zhaoping Song ◽  
Huili Wang ◽  
Dehai Yu ◽  
...  
Keyword(s):  
Plant Fibers

scholarly journals Importance of Interfacial Adhesion Condition on Characterization of Plant-Fiber-Reinforced Polymer Composites: A Review

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 438
Author(s):  
Ching Hao Lee ◽  
Abdan Khalina ◽  
Seng Hua Lee
Keyword(s):  
Thermal Properties ◽  
Polymer Composites ◽  
Interfacial Adhesion ◽  
Fiber Reinforced Polymer ◽  
Plant Fiber ◽  
Plant Fibers ◽  
Natural Plant ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
Adhesion Condition

Plant fibers have become a highly sought-after material in the recent days as a result of raising environmental awareness and the realization of harmful effects imposed by synthetic fibers. Natural plant fibers have been widely used as fillers in fabricating plant-fibers-reinforced polymer composites. However, owing to the completely opposite nature of the plant fibers and polymer matrix, treatment is often required to enhance the compatibility between these two materials. Interfacial adhesion mechanisms are among the most influential yet seldom discussed factors that affect the physical, mechanical, and thermal properties of the plant-fibers-reinforced polymer composites. Therefore, this review paper expounds the importance of interfacial adhesion condition on the properties of plant-fiber-reinforced polymer composites. The advantages and disadvantages of natural plant fibers are discussed. Four important interface mechanism, namely interdiffusion, electrostatic adhesion, chemical adhesion, and mechanical interlocking are highlighted. In addition, quantifying and analysis techniques of interfacial adhesion condition is demonstrated. Lastly, the importance of interfacial adhesion condition on the performances of the plant fiber polymer composites performances is discussed. It can be seen that the physical and thermal properties as well as flexural strength of the composites are highly dependent on the interfacial adhesion condition.

W-Doped TiO2 Preparation and Photocatalytic Degradation of Guaiacol

2014 ◽  
Vol 513-517 ◽  
pp. 33-36 ◽  
Author(s):  
Zi Chang Xie ◽  
Ying Wang ◽  
Peng Wang ◽  
Lei Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Degradation Rate ◽  
Amorphous State ◽  
X Ray Diffraction ◽  
Model Compounds ◽  
Plant Fibers ◽  
X Ray ◽  
Crystallite Structure

In this paper, W-doped TiO2 (W-TiO2) powder was prepared in hydrothermal method by mixing TiO2 and ammonium metatungstate. The catalysts were characterized by X-ray diffraction and ultraviolet spectrophotometer. The results displayed that W-TiO2 showed an anatase crystallite structure with 2 % W content. W-element in W-TiO2 was amorphous state. The guaiacol was degraded with the W-TiO2 in the visible light. It was a model compounds of lignin existed in the plant fibers. The degradation rate of guaiacol was increased with the photocatalytic time, as high as 88.21 % after 360 min irradiation. It was concluded that the W-TiO2 had an obvious photocatalytic activity under visible light. It can be used in the photocatalytic degradation of lignin.

scholarly journals Natural Plant Fiber Composites-Constituent Properties and Challenges in Numerical Modeling and Simulations

2017 ◽  
Vol 09 (04) ◽  
pp. 1750045 ◽  
Author(s):  
Yucheng Zhong ◽  
Umeyr Kureemun ◽  
Le Quan Ngoc Tran ◽  
Heow Pueh Lee
Keyword(s):  
Carbon Fibers ◽  
Renewable Resources ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Future Research ◽  
Plant Fiber ◽  
Plant Fibers ◽  
Natural Plant ◽  
Synthetic Fibers ◽  
Review Reports

Natural fibers are extracted from natural resources such as stems of plants. In contrast to synthetic fibers (e.g., carbon fibers), natural fibers are from renewable resources and are eco-friendlier. Plant fibers are important members of natural fibers. Review papers discussing the microstructures, performances and applications of natural plant fiber composites are available in the literature. However, there are relatively fewer review reports focusing on the modeling of the mechanical properties of plant fiber composites. The microstructures and mechanical behavior of plant fiber composites are briefly introduced by highlighting their characteristics that need to be considered prior to modeling. Numerical works that have already been carried out are discussed and summarized. Unlike synthetic fibers, natural plant fiber composites have not received sufficient attention in terms of numerical simulations. Existing technical challenges in this subject are summarized to provide potential opportunities for future research.

Hemp Fiber Reinforced Composites: Morphological and Mechanical Properties

2011 ◽  
Vol 332-334 ◽  
pp. 121-125
Author(s):  
Xing Mei Guo ◽  
Yi Ping Qiu
Keyword(s):  
Polymer Composites ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Hemp Fiber ◽  
Plant Fibers ◽  
Natural Plant ◽  
Reinforcing Fillers

The use of natural plant fibers as reinforcing fillers in fiber-polymer composites has drawn much interest in recent years. Natural plant fibers as reinforcing fillers have several advantages over inorganic fillers such as glass fibers; they are abundant, readily available, renewable, inexpensive, biodegradable, of low density, and of high specific strength. Hemp fibers are one of the most attractive natural plant fibers for fiber-reinforced composites because of their exceptional specific stiffness. In this review, we summarize recent progress in developments of the hemp fiber reinforced composites such as hemp fiber reinforced unsaturated polyester (UPE), hemp fiber reinforced polypropylene (PP), hemp fiber reinforced epoxy composites, and so on, illustrate with examples how they work, and discuss their intrinsic fundamentals and optimization designs. We are expecting the review to pave the way for developing fiber-polymer composites with higher strength.

Influence of structural physiognomies of pawpaw fiber–glass fiber hybrid–based green composites on mechanical properties and biodegradation potential of epoxy composites

2021 ◽  
pp. 073168442110176
Author(s):  
Oluwole I Oladele ◽  
Baraka A Makinde-Isola ◽  
Adeolu A Adediran ◽  
Oluwaseun T Ayanleye ◽  
Samuel A Taiwo
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Tensile Strain ◽  
Control Sample ◽  
Linear Structure ◽  
Fiber Glass ◽  
Plant Fibers ◽  
Fixed Amount ◽  
Plant Stem ◽  
Fractured Surface

The demand for durable and sustainable eco-friendly materials in recent times has caused many researchers to consider the use of plant fibers in composite development. In this research, the suitability of treated pawpaw fiber as a substitute for glass fiber was considered. The pawpaw fiber was extracted from the plant stem by dew retting and treated before been incorporated into the epoxy matrix. Two distinct fiber structures in linear and network forms were identified, separated, and used for the development of the composites. The composites were produced by incorporating a fixed amount of pawpaw fiber with a varied amount of glass fiber within 3–15 wt% in epoxy-based polymer matrix after which mechanical and biodegradation tests were carried out on the developed samples. Fractured surface morphology was also observed using a scanning electron microscope. The results revealed that the fiber structures influence the properties of the material. While mechanical properties were mostly enhanced by treated linear structure pawpaw fiber, biodegradation was highly promoted by treated network structure pawpaw fiber. Tensile (except for strain), hardness, and flexural properties were enhanced by the linear-structured treated pawpaw fiber, while biodegradability, impact, and tensile strain were improved by the network-structured treated pawpaw fiber compared to the control sample.

scholarly journals Extraction and refinement of agricultural plant fibers for composites manufacturing

2018 ◽  
Vol 21 (9) ◽  
pp. 897-906 ◽  
Author(s):  
Glenn Bousfield ◽  
Sophie Morin ◽  
Nicolas Jacquet ◽  
Aurore Richel
Keyword(s):  
Plant Fibers ◽  
Agricultural Plant ◽  
Composites Manufacturing

scholarly journals Application of Wall and Insulation Materials on Green Building: A Review

2018 ◽  
Vol 10 (9) ◽  
pp. 3331 ◽  
Author(s):  
Hao Wang ◽  
Pen-Chi Chiang ◽  
Yanpeng Cai ◽  
Chunhui Li ◽  
Xuan Wang ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Construction Material ◽  
Construction Materials ◽  
Green Building ◽  
Development Trend ◽  
Plant Fibers ◽  
Sustainable Resources ◽  
Insulation Materials ◽  
Green Construction ◽  
Wall Materials

The construction materials utilized in the building sector have accounted for a large amount of natural resource and energy consumption. Green building, which has developed over three decades, can be regarded as a management and technical approach for building and construction sectors to achieve resource and energy sustainability in building sectors. Therefore, the development and deployment of green construction materials play an important role in the green building field due to the contribution of sustainable resources and energy. To realize the barriers of energy and resources utilization on green building, the development trend, application, and some case studies on wall materials and thermal insulation materials are described. A summary of plant fibers, recycled wastes, and photochromic glass is developed to show applications of green construction materials, which contributes to sustainable development. The challenges and barriers from business, technical, and policy aspects are also reviewed. Finally, perspectives and prospects of green construction material life-cycle framework are illustrated. This paper presents a snapshot review of the importance of wall materials and thermal insulation materials from the point of view of energy and resources consumption.

Sign in / Sign up

Export Citation Format

Share Document