Synthesis and properties of silicone/montmorillonite nanocomposites by in-situ intercalative polymerization

Yuan, Xinhua; Li, Xiaohui; Zhu, Enbo; Hu, Jie; Cao, Shunsheng; Sheng, Weichen

doi:10.1016/j.carbpol.2009.08.014

Cited by 24 publications

(13 citation statements)

References 21 publications

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“…For example, ultrasonication has been proved effective in dispersing fillers in the polymer matrix. 8,9 Moreover, the utilization of nano-sized fillers can also increase dispersibility in polymer resin and lead to improved mechanical, thermal and dielectric properties. 10,11 Graphene is a two-dimensional carbon sheet exfoliated from graphite, which has recently emerged as one of the most attractive and creative materials because of its remarkable chemical and physical characteristics.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal and dielectric properties of graphene oxide/polyimide resin composite

Liu

Yao

Zhou

2016

High Performance Polymers

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Graphene oxide (GO) sheets have captured the attention of the scientific community because of its excellent performance and applicability. Hence, studying its reinforcing effects on polyimide (PI) resin is an important research topic. In this study, samples of GO-reinforced PI resin were prepared by hot pressing. The effects of GO as nanofiller on the structure and morphology as well as on the mechanical, thermal, and dielectric properties of the GO/PI resin composites were investigated carefully to provide a practical strategy for the use of the polymer-based composites. The GO nanosheets were dispersed uniformly into the PI matrix by ultrasonication, as illustrated by scanning electron microscopic images (SEM). Compared with pure PI, the GO/PI resin composite loaded with 1 wt% GO showed improved tensile strength by 38.9%, flexural strength by 24.8%, and impact strength by 40.7%. Dynamic mechanical analysis test showed that the addition of GO (1 wt%) increased the glass transition temperature by nearly 9.1°C. In addition, the thermal stability and the dielectric constant were also enhanced by adding only a small amount of GO. This approach provides a strategy for developing simple and cost-effective GO-polymer resin composite materials.

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Section: Introductionmentioning

confidence: 99%

Mechanical, thermal and dielectric properties of graphene oxide/polyimide resin composite

Liu

Yao

Zhou

2016

High Performance Polymers

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“…Therefore, the increase of efficient paths enhances the barrier properties for oil, gas, or liquid. [31][32][33][34] The results also illustrate the effect of the modifier type on the chemical resistance of resol resin nanocomposite film samples with 2.0 phr organoclay. It was found that epoxy modified resol resin nanocomposite films with 2.0 phr organoclay exhibit the best chemical resistance toward the used chemicals as compared with using mixed epoxy/ urethane or urethane modifiers.…”

Section: Chemical Resistancementioning

confidence: 90%

Modified resol type phenolic resin nanocomposites as surface metal coatings

et al. 2021

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Nanocomposites based on resol resin as a matrix and prepared organoclay, from Egyptian bentonite clay, as reinforcement material were synthesized. The effect of organoclay content (i.e., 0.5, 1.0, 1.5, 2.0, and 2.5 phr) on the properties of the prepared samples with respect to the prepared composites and resol resin with no clay was investigated. The prepared samples with higher organoclay content (i.e., 2.0 phr) were modified with epoxy or/and urethane resin and characterized using transmission electron microscope (TEM), X-ray diffraction (XRD), and Fourier transform infrared measurements (FTIR). TEM showed uniform dispersion of the clay while XRD showed exfoliated structures. FTIR measurements confirmed the bond formation between epoxy or/and diisocynate with phenolic hydroxyl groups of resol resin. Mechanical properties, chemical resistance, thermal properties, and electrical volume resistivity were studied. Results showed that epoxy modified resol resin film samples with 2.0 phr organoclay exhibited higher adhesion and scratch hardness values, higher chemical resistance, thermal stability, and lower electrical conductivity compared with mixed epoxy/urethane and urethane samples as well as unmodified resol resin nanocomposite film samples. The samples could be useful as surface metal coatings.

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“…However, T onset of other nanocomposites was decreased when more amount of FR-DOMt was added. Yuan et al [14] also found that silicone rubber composites containing organoclay degraded slightly faster than pure silicone. As a result, a slight weight loss was found in their composites.…”

Section: The Effect Of Fr-domt On Thermal Properties Of Rtv Nanocompomentioning

confidence: 96%

“…This interaction may cause stress concentrating and resultant decreasing strength. [14,27] The hardness of the two types of RTV nanocomposites showed opposite trends. The hardness of RTV/FR-DOMt nanocomposites was almost decreased when more FRDOMt was added ( Figure 6).…”

Section: The Effect Of Fr-domt On Flame-retardancy Of Rtv Nanocompositesmentioning

confidence: 98%

Study on the structure and properties of RTV/FR-DOMt nanocomposites

Wei

Wang

Zhao

2016

Journal of Experimental Nanoscience

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The aim of our research was to study the effect of flame-retardant dendrimer modified organic montmorillonite (FR-DOMt) with different ratios on the structure and properties of room-temperaturevulcanised silicone rubber (RTV). The physical and mechanical properties of RTV nanocomposites were improved with the addition of FR-DOMt additives. The RTV nanocomposites exhibited better thermal stability. T onset of RTV/FR-DOMt-3 was 310 C, 100 C higher than that of pure RTV. RTV/FR-DOMt-3 nanocomposite possessed the highest elongation at break, 500%. This was 46% higher than that of pure RTV. In addition, these RTV nanocomposites showed an increased FR behavior. By adding 3À15 phr of FR-DOMt into pure RTV matrix, a linear decrease of burning rate together with an increase of LOI values were obtained. SEM and TEM observations of RTV/FR-DOMt-3 demonstrated that the exfoliated silicate layers dispersed uniformly in this nanocomposite.

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Synthesis and properties of silicone/montmorillonite nanocomposites by in-situ intercalative polymerization

Cited by 24 publications

References 21 publications

Mechanical, thermal and dielectric properties of graphene oxide/polyimide resin composite

Mechanical, thermal and dielectric properties of graphene oxide/polyimide resin composite

Modified resol type phenolic resin nanocomposites as surface metal coatings

Study on the structure and properties of RTV/FR-DOMt nanocomposites

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