Thermal and electrical properties of epoxy composites at high alumina loadings and various temperatures

Wu, Xinfeng; Wang, Ying; Xie, Liyuan; Yu, Jinhong; Liu, Fei; Jiang, Pingkai

doi:10.1007/s13726-012-0104-4

Cited by 54 publications

(18 citation statements)

References 38 publications

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“…The T max is 18°C higher than that of the neat epoxy resin when filler content is 1.0 wt%, and the specific data of thermal decomposition are summarized in Table 1.The significant improvement of thermal stabilities can be attributed to the layered structure of the composite, which causes tortuous pathway for the volatile degradation products, thus delays the decomposition rate of the whole composites Figure 6. WAXD patterns of GO and TLCP-g-GO, inset: photographs of GO and TLCP-g-GO [38,39]. At the same time, the filler surface and the matrix take place crosslinking by curing reaction, which restrict thermal motion of the polymer molecular and also improve the thermal stability of the polymer.…”

Section: Resultsmentioning

confidence: 99%

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Qi¹,

Lu²,

Xiao³

et al. 2014

Express Polym. Lett.

111

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Abstract. Graphene oxide (GO) sheets were chemically grafted with thermotropic liquid crystalline epoxy (TLCP). Then we fabricated composites using TLCP-g-GO as reinforcing filler. The mechanical properties and thermal properties of composites were systematically investigated. It is found that the thermal and mechanical properties of the composites are enhanced effectively by the addition of fillers. For instance, the composites containing 1.0 wt% of TLCP-g-GO present impact strength of 51.43 kJ/m 2 , the tensile strength of composites increase from 55.43 to 80.85 MPa, the flexural modulus of the composites increase by more than 48%. Furthermore, the incorporation of fillers is effective to improve the glass transition temperature and thermal stability of the composites. Therefore, the presence of the TLCP-g-GO in the epoxy matrix could make epoxy not only stronger but also tougher.

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Section: Resultsmentioning

confidence: 99%

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Qi¹,

Lu²,

Xiao³

et al. 2014

Express Polym. Lett.

111

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“…Because a combination of EB irradiation and incorporation of TiO 2 nanoparticles into the resin caused reduction in the toughness value, it would be expected to obtain nanocomposites showing higher brittleness. As a result, adhesion strength and the interfacial stiffness might impose serious impact on the mechanical properties . If filler‐matrix interaction is poor, the particles are unable to carry any part of the applied external load .…”

Section: Resultsmentioning

confidence: 99%

Study on the physical and mechanical properties of electron‐beam‐irradiated Vinyl ester/TiO₂ nanocomposites

Shahrajabian

Ahmadi-Brooghani

Ahmadi

et al. 2014

Vinyl Additive Technology

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The effect of electron beam irradiation on the physical and mechanical properties of vinyl ester nanocomposites containing various amounts of TiO2 nanoparticles was investigated. The fracture toughness, surface hardness, and water uptake measurements were carried out to investigate alterations in the physical and mechanical properties owing to electron beam exposure. In this regard, it was attempted to infer the impact of TiO2 nanoparticles on the structural changes varying the irradiation dose. The results were then explained based on crosslinking and chain scission phenomena. Moreover, scanning electron microscopy was used to assess the degree of TiO2 dispersion within the polymer matrix. J. VINYL ADDIT. TECHNOL., 22:110–116, 2016. © 2014 Society of Plastics Engineers

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“…Secondly, there were active groups in the TCA201-TiO 2 particles structure, and there were a large number of hydroxyl groups in the organic phase; the two kinds of active groups could have contact with cross-linking agent and exist in strong interactions. This interaction enhanced fracture energy of composites and became beneficial to the heat resistant properties of composite [14,15]. Thirdly, inorganic TCA201-TiO 2 particles possessed a large specific surface area, contacting area of organic matrix was larger, and there were nanoeffects.…”

Section: Heat Resistance Propertiesmentioning

confidence: 96%

Characteristics and Properties of TiO₂/EP‐PU Composite

Chen

Tan

et al. 2015

Journal of Nanomaterials

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Polymer matrix of EP-PU was prepared by epoxy resin which was polyurethane toughened, and TCA201 coupling agent was used to modify nano-TiO2, and TiO2/EP-PU composite was synthesized using EP, PU, and TCA201-TiO2. The results of SEM and TEM showed that the surface of TiO2was coated with TCA201 coupling agent through the bonding between the hydroxyl of nano-TiO2particle and coupling agent molecules, the interaction would be beneficial to improve compatibility of inorganic and organic phases, and TCA201-TiO2would disperse evenly in composite and improve performance of composite materials. The mechanical properties, thermal stability, dielectric properties, and breakdown strength of composites were investigated by electronic tensile machine, TGA, dielectric spectrum, and CS2674C type voltage tester. The results indicated that appropriate amount of TCA201-TiO2could improve mechanical properties, the shear strength of 3 wt%-TiO2/EP-PU reached the maximum value at 27.14 MPa, its thermal decomposition temperature was 397.82°C, enhanced 17.48°C more than that of EP-PU matrix, and its dielectric constant(ε)and dielectric loss (tan⁡δ) showed 4.27 and 0.02, respectively. Its breakdown field strength was 14 kV/mm. Its performance met the requirement of dielectric materials.

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Thermal and electrical properties of epoxy composites at high alumina loadings and various temperatures

Cited by 54 publications

References 38 publications

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Study on the physical and mechanical properties of electron‐beam‐irradiated Vinyl ester/TiO₂ nanocomposites

Characteristics and Properties of TiO₂/EP‐PU Composite

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Thermal and electrical properties of epoxy composites at high alumina loadings and various temperatures

Cited by 54 publications

References 38 publications

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Enhanced thermal and mechanical properties of epoxy composites by mixing thermotropic liquid crystalline epoxy grafted graphene oxide

Study on the physical and mechanical properties of electron‐beam‐irradiated Vinyl ester/TiO2 nanocomposites

Characteristics and Properties of TiO2/EP‐PU Composite

Contact Info

Product

Resources

About

Study on the physical and mechanical properties of electron‐beam‐irradiated Vinyl ester/TiO₂ nanocomposites

Characteristics and Properties of TiO₂/EP‐PU Composite