17 Result(s)
within
Dajun Chen
English
Characterization and Evaluation of Materials
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Article
Surface deacetylation of chitin nano-whiskers
In this paper, chitin nano-whiskers (CNWs) were prepared through acid hydrolysis. The surface deacetylation of the prepared CNW in alkali conditions was carried out. The morphologies, crystallinity, degree of ...
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Article
Fabrication of Attapulgite/Multi-walled Carbon Nanotube Aerogels As Anode Material for Lithium Ion Batteries
Porous silica-based anode materials with high theoretical specific capacity and abundant reserves have attracted popular attention for application in lithium ion batteries (LIBs). However, poor electrochemical...
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Article
The effects of carbonization conditions on electrochemical performance of attapulgite-based anode material for lithium-ion batteries
In this work, attapulgite-based anode materials with different polyacrylonitrile contents were fabricated. The effect of polyacrylonitrile contents on electrochemical performances of the anode materials was sy...
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Article
Fabrication of silver doped attapulgite aerogels as anode material for lithium ion batteries
With the rapid development of electric vehicles and communication equipment, the demand for lithium-ion batteries (LIBs) with high capacity, long lifespan, high stability, high power density and energy density...
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Article
A facile co-solvent-free process for waterborne polyurethane preparation
In this work, a low-melting-point chain extender (LMCE) was prepared using 1,4-butanediol (BDO) and dimethylol propionic acid (DMPA) as raw materials. A series of co-solvent-free waterborne polyurethanes were ...
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Article
Shape memory-assisted self-healing polyurethane inspired by a suture technique
Shape memory-assisted self-healing had attracted great research interests recently. In this work, inspired by a suture technique, a two-step shape memory-assisted self-healing polyurethane system based on the ...
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Article
Fabrication of nano-sized attapulgite-based aerogels as anode material for lithium ion batteries
Silica-based material is regarded as one of the most potential anode materials for lithium ion batteries (LIBs) because of its high specific capacity, low discharge potential, and inexpensive cost. However, lo...
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Article
Synthesis and properties of self-healing waterborne polyurethanes containing disulfide bonds in the main chain
Materials with intrinsic self-healing ability have attracted tremendous interest in literature, especially coatings in anti-corrosion applications. In this work, environmentally friendly waterborne polyurethan...
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Article
Singlet oxygen generation properties of Fe-OCAP and its influence on the antibacterial and mechanical properties of Fe-OCAP/PU blends
In this paper, the singlet oxygen generation properties of Fe-octacarboxyl acid phthalocyanine (Fe-OCAP)/polyurethane (PU) blends were investigated by ultraviolet–visible spectra. 1,3-diphenylisobenzofuran was...
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Article
Synthesis of poly(norbornene-co-styrene) copolymers containing high styrene incorporation using bis(β-ketoamino) copper catalysts
Poly(norbornene-co-styrene) copolymers were synthesized by copolymerizations of norbornene (NB) and styrene (St) with bis(β-ketoamino) copper complexes [ArNC(R)CHC(R)O]2Cu (1, Ar = 2,6-dimethylphenyl, R = CH3; 2,...
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Article
The preparation and characterization of Fe-octacarboxyl acid phthalocyanine—polyethylene glycol/polyurethane blends
In this paper, Fe-octacarboxyl acid phthalocyanine substituted by polyethylene glycol (FeOCAP-PEG) was synthesized. FeOCAP-PEG had good solubility in solvents such as DMAc, DMSO and so on. FeOCAP-PEG/polyureth...
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Article
Preparation and characterization of thermo-, pH-, and magnetic-field-responsive organic/inorganic hybrid microgels based on poly(ethylene glycol)
Nanocomposite microgels are a new class of intelligent materials because of their fast response time, large surface area, and so on. In this study, we demonstrate a new kind of multiple stimulus-responsive org...
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Article
Study on the thermal effects of rubbers during loading–unloading cycles by infrared thermography
In this study, infrared thermography is used to detect the thermal effects of rubber-like materials during loading–unloading cycles. Two salient features of temperature change have been observed: (1) the tempe...
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Article
Morphology and mechanical properties of polyacrylonitrile/attapulgite nanocomposite
The major objective of this work is to understand the effects of attapulgite (AT) on the mechanical properties of polyacrylonitrile (PAN)/AT nanocomposite film. The well dispersed but irregularly distributed A...
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Article
Carbon partitioning during bainite transformation in 4317 type steels
The carbon partitioning during bainite transformation was studied using a diametrical dilatometer. The relationship of Ms temperature as a function of carbon content was determined for 4317 type steels. Austemper...
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Article
A one-pot approach to the preparation of silver-PMMA “shell-core” nanocomposite
In the present work, we describe a “one-pot” route for the preparation of silver-PMMA nanocomposite. The formation of silver-PMMA nanocomposite takes into consideration the fact that free radical species are g...
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Article
Microstructural characterization of laser cladding of Cu-30Ni
