Studies on the properties of a new hybrid materials containing chain-extended urea and SiO2–TiO2 particles

Lu, Shaorong; Zhang, Hai-Liang; Zhao, Caixian; Wang, Xiayu

doi:10.1016/j.polymer.2005.08.029

Cited by 51 publications

(24 citation statements)

References 23 publications

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“…According to Lu et al's research, 20 these indicated that LCMC can play a role of decreasing activation energy and accelerating curing reaction, this result may be correlative with double bond on the end group of LCMC. The curing reaction mechanism of UP/LCMC/curing agent system accelerated attribute to the reaction between double bond group of LCMC and double bond group of UP under the function of curing agent, that can accelerate curing reaction.…”

Section: Resultsmentioning

confidence: 96%

Wear and mechanical properties of reactive thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber hybrid composites

Wei

et al. 2006

J of Applied Polymer Sci

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To improve the performance of unsaturated polyester (UP) under cold-heat alternate temperature, selfsynthesized reactive thermotropic liquid crystalline polymer (TLCP)-methacryloyl copolymer (LCMC), UP, and glass fiber (GF) hybrid composites was prepared by molding technology. The apparent activation energy and crystal behavior analysis of LCMC/UP blends were investigated by Differential scanning calorimetry and X-ray diffraction (XRD), respectively, the results showed that the addition of LCMC can reduce apparent activation energy and accelerate the curing reaction of UP, the XRD analysis indicated that the crystal phase of LCMC still exist in the blends after blending with UP. The effect of LCMC content on the properties of LCMC/UP/GF hybrid composites such as impact strength, bending strength, and ring-on-block wear were also investigated through static mechanical tests and wear tests. The mechanical properties of hybrid composites increased significantly because of the addition of LCMC. The wear tests showed that LCMC can improve the wear resistance of the UP/GF/LCMC hybrid composites even though the content of LCMC was at a relatively low level (5-7.5 wt %). This makes it possible to develop novel kind of UP-based materials with good wear resistance for various applications. The Worn surface was observed by scanning electron microscopy (SEM) and the mechanism for the improvement is discussed in this paper.

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Section: Resultsmentioning

confidence: 96%

Wear and mechanical properties of reactive thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber hybrid composites

Wei

et al. 2006

J of Applied Polymer Sci

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“…Uncured epoxy resins must be converted into a crosslinked macromolecule in the presence of different kinds of curing agents by curing reaction. Among commonly used curing agent for epoxy resin, amine-based ones like aliphatic amine, 9,10 ester ring amine, [11][12][13] and aromatic amine, [14][15][16][17] are of prime significance in practical applications. Nowadays, most related researches are focused on aromatic and aliphatic amine curing agents, yet little attention is paid to developing the curing agent of aliphatic diamide.…”

Section: Introduction Ementioning

confidence: 99%

Aliphatic Diamide as Novel Asphalt‐Modified Epoxy Curing Agent for Enhanced Performance

Jiang

Liu

et al. 2016

Adv Polym Technol

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Adipamide used as the curing agent of asphalt-modified epoxy resin was synthesized by esterification and ammonolysis, and its chemical structure was confirmed by the Fourier transform infrared spectroscopy (FTIR), 1 H and 13 C nuclear magnetic resonance ( 1 H NMR and 13 C NMR) analysis. The thermal stability, Vicat softening temperature, tensile strength, and Shore D hardness of the cured asphalt-modified epoxy resin were studied by thermogravimetric analysis (TG), Vicat softening tester, tensile tests, and Shore D plastic hardness tester, respectively. The surface morphology of epoxy resin tensile fracture was also observed by scanning electron microscopy (SEM). The Vicat softening temperature of cured epoxy resin decreased from 95 to 64°C with increasing modified asphalt (MA) contents from 0 wt.% to 25 wt.%. The maximum tensile strength of cured epoxy resin reached 45.4 MPa when MA content was 5 wt.% of the whole resin. The Shore D hardness slightly decreased from 86 D to 79 D as the MA was enhanced from 0 wt.% to 25 wt.%. TG results displayed that the thermostable temperature of cured epoxy resin was higher than 280°C.

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“…The physical properties like electrical, mechanical and optical properties are enhanced by these materials. The type of nanoparticle species can affect the polymer nanocomposite properties, these are determined by its nanostructure, size, shape and concentration and by interactions with the polymer matrix (Yuwono et al, 2005, Lu et al, 2005. These hybrid materials allow the designer to manipulate their physical and chemical properties, are processed with ease and have a relatively low cost (Judeinstein & Sanchez 1996, Potyrailo 2006.…”

mentioning

confidence: 99%

Influence of Nanocomposite Materials for Next Generation Nano Lithography

Lewis¹,

Piccirillo²

2011

Advances in Diverse Industrial Applications of Nanocomposites

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Studies on the properties of a new hybrid materials containing chain-extended urea and SiO2–TiO2 particles

Cited by 51 publications

References 23 publications

Wear and mechanical properties of reactive thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber hybrid composites

Wear and mechanical properties of reactive thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber hybrid composites

Aliphatic Diamide as Novel Asphalt‐Modified Epoxy Curing Agent for Enhanced Performance

Influence of Nanocomposite Materials for Next Generation Nano Lithography

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