Improving the interfacial strength of silicone resin composites by chemically grafting silica nanoparticles on carbon fiber

Wu, Guangshun; Ma, Lichun; Jiang, Hua; Liu, Li; Huang, Yudong

doi:10.1016/j.compscitech.2017.10.020

Cited by 91 publications

(37 citation statements)

References 38 publications

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“…Hence, modifying the CF surfaces to create good interfacial properties can be crucial for increasing the composite's overall performances [10,11]. Recently, many approaches have been proposed for modifying carbon fiber surfaces to promote the interface properties of composites, such as coating or sizing, high-energy radiation, oxidation, chemical modification, and so on [12][13][14][15][16][17][18][19][20][21]. Among these approaches, chemical modification is considered to be one of the most effective approaches due to its simplicity and controllability without high energy.…”

Section: Introductionmentioning

confidence: 99%

Modification of Renewable Cardanol onto Carbon Fiber for the Improved Interfacial Properties of Advanced Polymer Composites

et al. 2019

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A facile in situ polymerization was developed for grafting renewable cardanol onto the carbon fiber (CF) surfaces to strengthen the fiber-matrix interface. CFs were chemically modified with hydroxyl groups by using an aryl diazonium reaction, and then copolymerized in situ with hexachlorocyclotriphosphazene (HCCP) and cardanol to build cardanol-modified fibers (CF-cardanol). The cardanol molecules were successfully introduced, as confirmed using Raman spectra and X-ray photoelectron spectroscopy (XPS); the cardanol molecules were found to increase the surface roughness, energy, interfacial wettability, and activity with the matrix resin. As a result, the interlaminar shear strength (ILSS) of CF-cardanol composites increased from 48.2 to 68.13 MPa. In addition, the anti-hydrothermal ageing properties of the modified composites were significantly increased. The reinforcing mechanisms of the fiber-matrix interface were also studied.Polymers 2020, 12, 45 2 of 11 important factors, such as interfacial wettability, the introduced mechanical interlocking, and the formed chemical bonding at the interface [26]. In a word, the formed chemical bonding between CFs and the matrix resin promotes the largest share of composite interface improvements.Cardanol, which is extracted from cashew nut shell liquid using a double vacuum distillation technique, is known as a significant agricultural renewable resource [27][28][29][30]. Cardanol, with a reactive phenolic moiety and an unsaturated C15 hydrocarbon chain, can easily form cross-linked structures under a thermal curing treatment, which is viewed as a robust platform for further grafting for multifunctional applications in the fields of coatings, biocomposites, curing agents, and antioxidants owing to its sustainability, low cost, large availability, and bactericidal properties [31,32]. We believe that this is the first report of a new hierarchical reinforcement that has been surface-modified with cardanol for changing the surface/interface properties. Herein, we developed a high-efficiency strategy for functionalizing CFs with renewable cardanol and studied the interfacial behaviors and the mechanisms of reinforcing, as well as toughening the interface for unsaturated polyester resin (UPR) composites. The active sites were built onto CF surfaces by using the diazonium technique, avoiding a strong acid oxidation treatment. As an agricultural renewable resource, cardanol is cost-effective, highlighting the potential of the strategy for practical applications. Moreover, the chemical bonding easily formed at the interface between CF-cardanol and UPR during the curing process, which played the most important role in enhancing the composite's interfacial properties. The preparation and characterization of CFs functionalized with cardanol and the resultant composites were fully studied, as discussed in this work.

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Section: Introductionmentioning

confidence: 99%

Modification of Renewable Cardanol onto Carbon Fiber for the Improved Interfacial Properties of Advanced Polymer Composites

et al. 2019

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“…In the spectrum of SN, the absorption peaks at 1084, 947 and 795 cm −1 represent Si −O −Si asymmetric stretching vibration, Si −OH stretching vibration and Si −O −Si symmetric vibrations [37] . After being grafted by APTES, the new peak at 1405 cm −1 is assigned to the −NH 2 functional group, and the peaks at 2981 and 2896 cm −1 can be attributed to C-H stretching vibration belonging to APTES [38] . For SN@APTES-PWA, the unique bands of PWA (as presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

A phosphotungstic acid coupled silica-Nafion composite membrane with significantly enhanced ion selectivity for vanadium redox flow battery

Yang

Zhao

Goh

et al. 2020

Journal of Energy Chemistry

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“…Contact angles were measured using a DSA100 instrument (Krüss, Germany). The dispersive components, polar components and total surface energy can be calculated according to Eqns :

γ = γ^{normald} + γ^{normalp}, γ_{normals} = γ_{normals}^{normald} + γ_{normals}^{normalp}, γ_{normall} = γ_{normall}^{normald} + γ_{normall}^{normalp}

γ_{normall} (1 + \cos θ) = 2 {((), γ_{l}^{d} γ_{s}^{d})}^{1 / 2} + 2 {((), γ_{l}^{p} γ_{s}^{p})}^{1 / 2}

where γ l ( γ s ), γ l d ( γ s d ) and γ l p ( γ s p ) are surface tension, dispersive and polar components of the test liquid (sample), respectively. In the present study, the test liquids were deionized water ( γ d = 21.8 mN m −1 , γ = 72.8 mN m −1 ) and glycerol ( γ d = 34.0 mN m −1 , γ = 64.0 mN m −1 ).…”

Section: Methodsmentioning

confidence: 99%

Incorporation of hyperbranched polyamide‐functionalized graphene oxide into epoxy for improving interfacial and mechanical properties

Fang

Zeng

et al. 2019

Polymer International

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The incorporation of hyperbranched polyamide-functionalized graphene oxide (HPA-GO) into epoxy was proposed to improve the interfacial and mechanical properties. Benefiting from improved dispersion and strengthened interfacial interaction, epoxy composites with HPA-GO showed significant improvements in mechanical and thermomechanical properties at low GO loading. The interaction at the HPA-GO/epoxy interface was investigated to confirm the occurrence of chemical bonding. Strong interfacial bonding improved the stress transfer and distribution of HPA-GO/epoxy interface. Accordingly, the overall strength of epoxy composites was effectively improved on account of the uniform dispersion of HPA-GO and interfacial chemical interaction between HPA-GO and epoxy. Compared with neat epoxy resin, the inclusion of 0.10 wt% HPA-GO led to 310.5 and 37.2% increase in impact strength and tensile strength, respectively.

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Improving the interfacial strength of silicone resin composites by chemically grafting silica nanoparticles on carbon fiber

Cited by 91 publications

References 38 publications

Modification of Renewable Cardanol onto Carbon Fiber for the Improved Interfacial Properties of Advanced Polymer Composites

Modification of Renewable Cardanol onto Carbon Fiber for the Improved Interfacial Properties of Advanced Polymer Composites

A phosphotungstic acid coupled silica-Nafion composite membrane with significantly enhanced ion selectivity for vanadium redox flow battery

Incorporation of hyperbranched polyamide‐functionalized graphene oxide into epoxy for improving interfacial and mechanical properties

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