Fracture mechanisms of epoxy-based ternary composites filled with rigid-soft particles

Tang, Long‐Cheng; Zhou, Hui; Sprenger, Stephan; Ye, Lin; Zhang, Zhong

doi:10.1016/j.compscitech.2011.12.015

Cited by 167 publications

(122 citation statements)

References 39 publications

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“…Figure 7a and 7b, the fracture surface of the neat epoxy exhibits river patterns and very smooth. In addition, the cracks spread freely and randomly, revealing its nature of weak resistance to crack initiation and propagation [8,34,35]. Accordingly, the fracture process of neat epoxy is a typical brittle fracture pattern.…”

Section: Resultsmentioning

confidence: 99%

“…Addition of thermoplastic polymers can improve fracture toughness, but it is always at the expense of the glass transition temperature (T g ) and modulus or high cost [7]. Inorganic additives, such as silica and alumina have been used to increase the toughness of epoxies without sacrificing their basic properties, but the presence of numerous inorganic particles increase the viscosity leading to poor dispersion and processing difficulty [8][9][10]. In recent years, graphene oxide (GO) has attracted significant interest for the preparation of polymer composites due to its excellent mechanical [11], electrical and thermal properties, simple preparation technique and low cost [12].…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

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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“…Zhang et al 36 found the modulus to increase by 31% at a nanosilica addition level of 12 vol %. The strength was increased considerably, by 45%.…”

Section: Anhydride-cured Epoxy Resinsmentioning

confidence: 99%

Epoxy resin composites with surface‐modified silicon dioxide nanoparticles: A review

Sprenger

2013

J of Applied Polymer Sci

Self Cite

150

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Surface-modified silica nanoparticles, 20 nm in size and with a very narrow particle size distribution, have been available as concentrates in epoxy resins in industrial quantities for the last 10 years. They can be used in epoxy resin formulations to improve many different properties, including the strength, modulus, toughness, and fatigue performance. In this review, I examine the literature published in the last decade, compare the results with a focus on the mechanical properties, and discuss the mechanisms responsible for property improvements.

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“…Addition of a small amount of rigid nanoparticles in a polymer matrix has been proved to increase its mechanical properties significantly [9][10][11][12][13]. Some attempts have been made to take this advantage of nanoparticle reinforced matrix to enhance the mechanical performance of fiber composites [8,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Epoxy and Its Carbon Fiber Composites Modified by Nanoparticles

Liu

Deng

Zhang

2017

Journal of Nanomaterials

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Compressive properties are commonly weak parts in structural application of fiber composites. Matrix modification may provide an effective way to improve compressive performance of the composites. In this work, the compressive property of epoxies (usually as matrices of fiber composites) modified by different types of nanoparticles was firstly investigated for the following study on the compressive property of carbon fiber reinforced epoxy composites. Carbon fiber/epoxy composites were fabricated by vacuum assisted resin infusion molding (VARIM) technique using stitched unidirectional carbon fabrics, with the matrices modified with nanosilica, halloysite, and liquid rubber. Testing results showed that the effect of different particle contents on the compressive property of fiber/epoxy composites was more obvious than that in epoxies. Both the compressive and flexural results showed that rigid nanoparticles (nanosilica and halloysite) have evident strengthening effects on the compression and flexural responses of the carbon fiber composite laminates fabricated from fabrics.

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Fracture mechanisms of epoxy-based ternary composites filled with rigid-soft particles

Cited by 167 publications

References 39 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

Epoxy resin composites with surface‐modified silicon dioxide nanoparticles: A review

Mechanical Properties of Epoxy and Its Carbon Fiber Composites Modified by Nanoparticles

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