The interface structure of nano-SiO2/PA66 composites and its influence on material's mechanical and thermal properties

Xu, Xiaoyan; Li, Binjie; Lu, Huimin; Zhang, Zhijun; Wang, Honggang

doi:10.1016/j.apsusc.2007.07.014

Cited by 75 publications

(32 citation statements)

References 15 publications

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“…Subsequently, SiO 2 particulates are prevented from continuous agglomeration, owing to the substitution of their active group (-OH) by organic chains and steric hindrance as well [20]. We anticipate that this type of capped nano-SiO 2 would be suitable for reinforcing electroless Ni-P alloy and provide it with special performance such as increased toughness and lubricity [20,21]. Therefore, Ni-P/nano-SiO 2 composite coatings were prepared on mild steel substrate.…”

mentioning

confidence: 99%

Preparation and properties of electroless Ni–P–SiO2 composite coatings

Dong

Chen

Xiao

et al. 2009

Applied Surface Science

157

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mentioning

confidence: 99%

Preparation and properties of electroless Ni–P–SiO2 composite coatings

Dong

Chen

Xiao

et al. 2009

Applied Surface Science

157

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“…4.17) [143]. Thus, properties of PA-66 semi-crystal thermoplastic can be improved by silica gel nanoparticles (10-100 nm) [144][145][146][147]. However, preparation of nanoparticles with the size less than 10 nm counters some considerable difficulties.…”

Section: Formation Of Inorganic Precursor In Presence Of Organic Polymentioning

confidence: 96%

Physics and Chemistry of Sol-Gel Nanocomposites Formation

Pomogailo

Джардималиева

2014

Nanostructured Materials Preparation via Condensation Ways

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This method called sol-gel or dip-and spin-on-glass process, spin-spray-coating, sol -gel glasses, which was widely used in the second half of the twentieth century [1] 1 is one of the most universal condensation ways of production of nanoparticles stabilized by inorganic oxide or polymeric matrices. A special interest is attracted to materials obtained by combination of sol-gel chemistry and aerosol or spray processes, and combination of sol-gel synthesis with intercalation. This also includes combinations of sol-gel processes with different types of thermolysis, and approaches met in nature in biomineralization processes, etc., which are new aspects of integrative chemistry approach. Traditional sol-gel concept is based on hydrolysis and condensation of metal alkoxides and many metalloids including different ways of their modification [2,3]. Main reactions proceed at relatively low temperatures with usage of prepared in advance or synthesized in parallel polymers, and are convenient techniques for preparation of organic-inorganic nanocomposites compared with commercial silicate-intercalation technique. Sizes of formed nanoparticles in a composite can be reduced to 10 nm by choice of relative conditions. Polymer-inorganic materials have high mechanical strength and thermal stability in combination with optimal heat transport properties. They are widely used in practice due to unique physical and chemical properties: incorporation of nanometric inorganic component into polymeric matrix improves mechanical properties of material [4][5][6][7], permeability of polymers [8]. Light-sensitive materials are used in optic and electronic industry, printed-circuit boards, photoconductive cells, as key elements in solid coatings, packing materials, as cover materials they have good transparency [9][10][11]. For example, sol-gel method was used to produce various polymer/TiO 2 composites with high refractive index [12]. Such type of composites are used for chromatographic carriers, membrane materials, these are the main class of plastics for different applications, including airspace. Controlled properties of the surface of these colloid 1 We refer here to the recent review devoted to celebration of 40th anniversary of innovation researches in polymer-inorganic ceramics produced by sol-gel technique [1].

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“…Therefore, many efforts have been made to retard and eliminate the agglomeration of the inorganic nanofillers and improve their dispersion in polymer matrices, where the interfacial structure of nanofiller filled composites and the phenomena occurring at the organic/inorganic interfaces are attracting increased attention [21,22]. For example, Xu et al [23] studied the interface structure of nano-SiO 2 /PA-66 composites and its influence on the mechanical and thermal properties, and they suggested that the formation of the interface structure between nano-silica and PA-66 was mainly attributed to hydrogen bonding and covalent bonding. AlSagheer et al [24] studied the thermal and mechanical properties of chemically bonded aramid-silica composites and found that suitable modification of aramid chain with pendant hydroxyl groups provided extensive bonding between the silica network and the polymer chain.…”

Section: Introductionmentioning

confidence: 99%