The effect of filler surface modification and processing conditions on distribution behaviour of silica nanofillers in polyesters

Bula, Karol; Jesionowski, Teofil; Krysztafkiewicz, Andrzej; Janik, J.

doi:10.1007/s00396-007-1687-8

Cited by 47 publications

(18 citation statements)

References 12 publications

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“…9a, 9b (PP/10% PP-g-MAH/30% Mg(OH) 2 ) show an even filler distribution with a slight tendency to form small agglomerates. The simultaneous use of a twin-screw extruder and a polymer grafted with maleic anhydride compatibiliser reduced the agglomerate quantity and size [39,40].…”

Section: Chemical and Morphological Properties Of Pp/mg(oh) 2 Compositesmentioning

confidence: 99%

Functional polypropylene composites filled with ultra-fine magnesium hydroxide

et al. 2014

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Magnesium hydroxide was prepared under controlled conditions from aqueous Mg(NO 3 ) 2 and NaOH solutions. The small, nanoplate-shaped particle size distribution was monomodal from 164 to 459 nm. Functional polypropylene/Mg(OH) 2 and polypropylene/polypropylene 1% maleic anhydride/Mg(OH) 2 composites were prepared containing 10% or 30% Mg(OH) 2 . The composites have a high Young's modulus (twice that of polypropylene) and comparable tensile strength but less ductility. EDX examination of the fractured composite surfaces suggested a homogeneous Mg(OH) 2 distribution for composites produced with the addition of polypropylene grafted with maleic anhydride. The polypropylene/Mg(OH) 2 composites showed good antibacterial activity. The polypropylene/ polypropylene 1% maleic anhydride/Mg(OH) 2 composites were less effective.

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Section: Chemical and Morphological Properties Of Pp/mg(oh) 2 Compositesmentioning

confidence: 99%

Functional polypropylene composites filled with ultra-fine magnesium hydroxide

et al. 2014

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“…Its valuable physicochemical properties along with high surface are the reasons for its widespread use [22,23]. Silica exhibits also a great potential for surface functionalization in terms of physical and chemical features and therefore gains even more possible applications [24][25][26][27][28][29][30]. On the other hand, large amounts of lignin, as a by-product, are produced during kraft pulping process in paper production industry, causing it to be a low-cost, easily available filler.…”

Section: Introductionmentioning

confidence: 99%

Supermolecular structure and nucleation ability of polylactide-based composites with silica/lignin hybrid fillers

Grząbka-Zasadzińska

Kłapiszewski

Bula

et al. 2016

J Therm Anal Calorim

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In this paper, amorphous silica Syloid 244 and kraft lignin were mechanically coupled. Four hybrid materials containing silica and lignin in ratios 1:1, 2:1, 5:1 and 20:1 were prepared. As reference samples for hybrid fillers pristine silica and lignin were used. Particle size determination and microscopic observations were applied to determine dispersive and morphological properties of hybrid fillers. Fourier transform infrared spectroscopy confirmed the effective preparation of silica/lignin hybrid materials. The parameters of porous structure of examined hybrid filler were determined using the multipoint Brunauer-Emmett-Teller method and Barrett-Joyner-Halenda algorithm. Composite samples of polylactide (PLA) containing 2.5 % (w/w) of hybrid filler were extruded. Optical microscopy, wide-angle X-ray scattering and differential scanning calorimetry were applied to specify the supermolecular structure of functional PLA/hybrid composites and analyze the crystallization parameters as well as the phase transformation in PLA matrix. Silica/lignin hybrid material was found to be a filler capable of an effective crystal nucleation. The nucleating ability of silica/lignin hybrid filler in PLA matrix is related to porous properties of filler and its composition.

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“…In general, the methods for dispersing fillers in a polymer matrix can be categorized as ex situ and in situ techniques. In the ex situ method, a commonly used procedure, filler particles are mixed with the polymer either in a solution or by mechanical means [22–26]. The advantages of this method are the ease of the process and the ability to use commercially available fillers.…”

Section: Introductionmentioning

confidence: 99%

Physical properties of epoxy resin/titanium dioxide nanocomposites

Polizos

Tuncer

Sauers

et al. 2010

Polymer Engineering & Sci

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A polymeric nanocomposite system (nanodielectric) was fabricated, and its mechanical properties were determined. The fabricated nanocomposite was composed of low concentrations of monodispersed titanium dioxide (TiO2) nanoparticles and an epoxy resin specially designed for cryogenic applications. The monodispersed TiO2 nanoparticles were synthesized in an aqueous solution of titanium chloride and polyethylene glycol and subsequently dispersed in a commercial‐grade epoxy resin (Araldite® 5808). Nanocomposite thin sheets were prepared at several weight fractions of TiO2. The morphology of the composites, determined by transmission electron microscopy, showed that the nanoparticles aggregated to form particle clusters. The influence of thermal processing and the effect of filler dispersion on the structure–property relationships were identified by differential scanning calorimetry and dynamic mechanical analysis at a broad range of temperatures. The effect of the aggregates on the electrical insulation properties was determined by dielectric breakdown measurements. The optical properties of the nanocomposites and their potential use as filters in the ultraviolet–visible (UV–vis) range were determined by UV–vis spectroscopy. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers

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The effect of filler surface modification and processing conditions on distribution behaviour of silica nanofillers in polyesters

Cited by 47 publications

References 12 publications

Functional polypropylene composites filled with ultra-fine magnesium hydroxide

Functional polypropylene composites filled with ultra-fine magnesium hydroxide

Supermolecular structure and nucleation ability of polylactide-based composites with silica/lignin hybrid fillers

Physical properties of epoxy resin/titanium dioxide nanocomposites

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