Effect of the type of nano-filler on the crystallization and mechanical properties of syndiotactic polystyrene based nanocomposites

Papageorgiou, George Z.; Achilias, Dimitris S.; Nianias, Nikolaos; Trikalitis, Pantelis N.; Bikiaris, D.

doi:10.1016/j.tca.2013.04.037

Cited by 22 publications

(5 citation statements)

References 59 publications

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“…Figure (b) shows plots for pristine sPS and its nanocomposites along with the Avrami constants estimated for various samples crystallized at 250 °C. The n value of pristine sPS was ca 3.0, which was comparable to the literature values . This n value shows that pristine sPS crystallizes by diffusion controlled spherulite growth (three‐dimensional crystal growth) with athermal nucleation.…”

Section: Resultssupporting

confidence: 84%

Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites

Nagendra

Das

Leuteritz

et al. 2016

Polymer International

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Section: Resultssupporting

confidence: 84%

Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites

Nagendra

Das

Leuteritz

et al. 2016

Polymer International

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“…The dispersion of nano‐fillers and the spatial distribution of micro‐nano coordination have significant effects on the mechanical, thermal and tribological properties of polymer matrix composites 39–41 . Figure 1 presents the morphology of brittle fracture obtained by liquid nitrogen freezing.…”

Section: Resultsmentioning

confidence: 99%

“…The dispersion of nano-fillers and the spatial distribution of micronano coordination have significant effects on the mechanical, thermal and tribological properties of polymer matrix composites. [39][40][41] Figure 1 presents the morphology of brittle fracture obtained by liquid nitrogen freezing. To a certain extent, the brittle fracture surface can reveal the interfacial interaction and the dispersion level of the nanofillers.…”

Section: Morphologymentioning

confidence: 99%

Wear resistant PEEK composites with great mechanical properties and high thermal conductivity synergized with carbon fibers and h‐BN nanosheets

Han

et al. 2023

Polymers for Advanced Techs

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It is well known that carbon fiber (CF) reinforced PEEK (polyether‐ether‐ketone) (defined as “PEEK/CF”) composites have excellent properties and have been widely used in diverse fields. Meanwhile, hexagonal boron nitride (h‐BN), as an excellent nano reinforcing agent, is often incorporated into polymer to improve its mechanical strength and thermal conductivity. Herein, PEEK matrix was regulated by adding high‐strength CF as the load‐bearing phase and 2D h‐BN sheets as the solid lubricant and thermally conductive fillers prepared by melt blending to achieve the multi‐scale packing of uniform mixing. The results show that h‐BN is well dispersed in PEEK matrix and improves the interfacial bonding between CF and PEEK matrix, exhibiting a good synergistic effect in enhancing tensile properties of composites. PEEK composite with 20 wt% CF and 4 wt% h‐BN (referred as P/20C/4B) exhibits the highest tensile strength (176.05 MPa) and thermal conductivity (0.396 W/(m·K)), which are 97.54% and 126.3% over those of pure PEEK (89.12 MPa; 0.175 W/(m·K)), respectively. In addition, PEEK composite with 10 wt% CF and 4 wt% h‐BN (referred as P/10C/4B) has excellent tribological properties with a friction coefficient of 0.15, the lowest fiction temperature (30.5°C) and a relative low wear rate of 1.62 × 10−6 mm3/(N·m) among them. The synergitic effects of h‐BN and CF on mechanical, tribological properties and thermal conductivity of PEEK composites provides a very broad prospect in their application of low frictional and wear resistant polymeric materials.

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“…The n value of pure sPS was ∼3.0, which was well comparable to the literature values. 32,33 This value of n indicates that pure sPS was crystallized by diffusion controlled spherulite growth (three-dimensional (3D) crystal growth) as a consequence of thermal nucleation. The Avrami constant computed for various sPS−HS compositions derived from Figure 5b is tabulated in Table 1.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Syndiotactic Polystyrene/Hybrid Silica Spheres of POSS Siloxane Composites Exhibiting Ultralow Dielectric Constant

Joseph

Nagendra

Surendran

et al. 2015

ACS Appl. Mater. Interfaces

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Homogeneously dispersed hybrid silica/syndiotactic polystyrene composites were investigated for low-κ dielectric applications. The composites were prepared by a solution blending method, and their microstructures were analyzed by SEM, TEM, and AFM. Crystallization and phase transformation behavior of sPS were investigated using differential scanning calorimetry and wide-angle X-ray diffraction. These composites exhibited improved thermal stability and reduced thermal expansion coefficients. Promising dielectric properties were observed for the composites in the microwave frequency region with a dielectric constant (κ = 1.95) and loss (tan δ = 10(-4)) at 5 GHz.

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Effect of the type of nano-filler on the crystallization and mechanical properties of syndiotactic polystyrene based nanocomposites

Cited by 22 publications

References 59 publications

Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites

Structure and crystallization behaviour of syndiotactic polystyrene/layered double hydroxide nanocomposites

Wear resistant PEEK composites with great mechanical properties and high thermal conductivity synergized with carbon fibers and h‐BN nanosheets

Syndiotactic Polystyrene/Hybrid Silica Spheres of POSS Siloxane Composites Exhibiting Ultralow Dielectric Constant

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