نتایج جستجو برای: nano fiber

تعداد نتایج: 179605  

2010
István Siró David Plackett

Due to their abundance, high strength and stiffness, low weight and biodegradability, nano-scale cellulose fiber materials (e.g., microfibrillated cellulose and bacterial cellulose) serve as promising candidates for bio-nanocomposite production. Such new high-value materials are the subject of continuing research and are commercially interesting in terms of new products from the pulp and paper ...

Journal: :RSC advances 2015
Sujatha Sampath Jeffery L Yarger

Interaction with water causes shrinkage and significant changes in the structure of spider dragline silks, which has been referred to as supercontraction in the literature. Preferred orientation or alignment of protein chains with respect to the fiber axis is extensively changed during this supercontraction process. Synchrotron x-ray micro-fiber diffraction experiments have been performed on Ne...

Journal: :Nanotechnology reviews 2022

Abstract To investigate the mechanical properties and durability of nano-SiO 2 , polyvinyl alcohol (PVA) fiber-modified fly ash (FA), metakaolin (MK)-based geopolymer mortar (FMGM), tests compressive strength, electrical flux, freeze–thaw cycles, sulfate dry wet cycles were conducted. Based on experimental results, combined with Dunn’s gray correlation theory analysis method, a mathematical eff...

Journal: :Cellulose 2021

Although jute fiber-reinforced PLA composites show strong application prospects, their low mechanical properties limit applications to some extent. In this paper, nano-SiO2 particles as well nano SiO2 modified by coupling agents which can efficiently improve the strength and toughness of composite materials are introduced into matrix. The bending, stretching thermal designed jute/PLA nonwoven w...

Journal: :Optical Fiber Technology 2022

We present a study of simultaneous detection curvature and strain in optical fiber. This contains micro tapered section nano section. The transmission spectrum shows interference multiple modes, the frequency modulation can be used to distinguish monitor specific physical parts fiber structure. is achieved using one component; this component an intensity with sensitivity 0.26 dB/m?1. informatio...

Journal: :Agronomy 2023

Optimizing nutrient management strategies is crucial for enhancing the growth, yield, and nutritional quality of fodder maize (Zea mays) while minimizing environmental impacts. This study investigated effects innovative nitrogen (N) zinc (Zn) approaches on production. Different combinations fertilizers, including conventional urea nano-urea, were applied in conjunction with targeted foliar spra...

Journal: :Engineering research express 2023

Abstract This paper aims to study the mechanical properties of hybrid polymer composites and addition primary secondary fillers nano-aluminum oxide nanographene Kenaf epoxy composites. The vacuum bagging method was used fabricate advantage using is reduce blowholes. weight ratio fiber 50%–60%, matrix 40%, 0%–6%, 0%–3% considered. Mechanical like Tensile strength, Young’s modulus elongation, fle...

2013
Eyal Preter Borut Preloznik Vlada Artel Chaim N. Sukenik Denis Donlagic Avi Zadok

Fiber-optic sensors provide remote access, are readily embedded within structures, and can operate in harsh environments. Nevertheless, fiber-optic sensing of liquids has been largely restricted to measurements of refractive index and absorption spectroscopy. The temporal dynamics of fluid evaporation have potential applications in monitoring the quality of water, identification of fuel dilutio...

2013
Zhijia Liu John F. Hunt Zhiyong Cai

Fiberboard is a common interior material used both in China and the United States of America. The increase in demand for interior materials has raised concerns regarding combustibility of the materials. The pyrolysis characteristics of fiber, phenolic resin (PF), and nano kaolinclay (NK) were investigated using thermogravimetry. The fire performances of samples coated with a mixture of NK and P...

2016
Nisha Bayal Baljeet Singh Rustam Singh Vivek Polshettiwar

We report a facile protocol for the synthesis of fibrous nano-silica (KCC-1) with controllable size and fiber density. In this work, we have shown that the particle size, fiber density, surface area and pore volume of KCC-1 can be effectively controlled and tuned by changing various reaction parameters, such as the concentrations of urea, CTAB, 1-pentanol, reaction time, temperature, solvent ra...

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