Nanocomposite coatings for healing surface defects of glass fibers and improving interfacial adhesion

Gao, Shang‐Lin; Mäder, Edith; Plonka, Rosemarie

doi:10.1016/j.compscitech.2007.10.009

Cited by 108 publications

(54 citation statements)

References 32 publications

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“…Continued development in light-weighted PMC with higher mechanical performance has been fueled by the premise that 10% reduction in the vehicle weight can result in 6-8% increase in fuel efficiency [1]. One approach towards light weighting is the incorporation of nanoparticles either as a reinforcement phase within the matrix polymer, or at the fiber/matrix interface [2][3][4][5]. The high surface area per unit volume of nanoparticles enhances the interactions with the other constituents in the composite and subsequently enhances the mechanical properties compared to larger dimension particles of the same composition [6].…”

Section: Introductionmentioning

confidence: 99%

Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals

Asadi¹,

Miller²,

Moon³

et al. 2016

Express Polym. Lett.

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Abstract. In this study, the interfacial and mechanical properties of cellulose nanocrystals (CNC) coated glass fiber/epoxy composites were investigated as a function of the CNC content on the surface of glass fibers (GF). Chopped GF rovings were coated with CNC by immersing the GF in CNC (0-5 wt%) aqueous suspensions. Single fiber fragmentation (SFF) tests showed that the interfacial shear strength (IFSS) increased by ~69% in composites produced with CNC coated GF as compared to uncoated GF, suggesting an enhancement of stress transfer across the GF/matrix interface. The role of CNC coatings on the tensile, flexural, and thermo-mechanical properties of the CNC-coated GF/epoxy composites was investigated. Incorporation of 0.17 wt% CNC in the composite resulted in increases of ~10% in both elastic modulus and tensile strength, and 40 and 43 % in flexural modulus and strength respectively. In conclusion CNC coatings on GF alter the GF/matrix interface resulting in improvement of the mechanical performance of the corresponding composites.

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Section: Introductionmentioning

confidence: 99%

Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals

Asadi¹,

Miller²,

Moon³

et al. 2016

Express Polym. Lett.

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show abstract

“…Fiber tensile strength with such sizing is found to be higher by 50% after treatment in 5 wt% NaOH aqueous solution for seven days in ambient conditions (Gao, Mader, & Plonka, 2007).…”

Section: Fiber Surface Modificationmentioning

confidence: 99%

Ageing Models and Accelerated Ageing Tests of Glass Fiber Reinforced Concrete

Moceikis

Kičaitė

Skripkiūnas

et al. 2018

Engineering Structures and Technologies

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Abstract. Glass fiber reinforced concrete (GRC) is used for 40 years to create world's most stunning and complex architectural elements due to its high mechanical properties, particularly flexural strength. Yet it is very important to note that any type of glass fibers in the concrete matrix are undergoing complex ageing processes, resulting to significant decrease of initial mechanical characteristics of this composite material under natural weathering conditions. Aspects of GRC durability are mainly dependent from the properties of fibers and interaction between them and concrete matrix. In this article, long term strength retention of this composite material is discussed, existing experimental data of weathering tests presented, and main corrosion mechanisms explained. Lack of knowledge about freeze-thaw resistance of glass fiber reinforced concrete is addressed. Finally, latest attempts of GRC durability improvement are reviewed, such as adding micro fillers, polymers to the concrete matrix and enhancing surface of fibers in Nano scale.

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“…The total area under the curve assigned to the PP-GF-20BL composite is higher than the area under the other curves, meaning that the presence of the 20 bilayers was useful in increasing toughness of the material. This behavior can be attributed to a 'healing' effect in which GF's micro cracks are filled by the coating and severe fiber surface flaws are eliminated due to an increased crack tip radius [5,23] . Moreover, the presence of the polymer coating at the interface can provide mechanism for energy dissipation during crack propagation.…”

Section: Flexural Mechanical Propertiesmentioning

confidence: 99%

“…Coatings containing carbon nanotubes on GFs are useful for enhancing fiber`s mechanical properties [5,8] . The coating`s Modulus and thickness can be also associated as reasons for the results [23] .…”

Section: Flexural Mechanical Propertiesmentioning

confidence: 99%

Layer-by-Layer technique employed to construct multitask interfaces in polymer composites

Vitorino

Oréfice

2017

Polímeros

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Nanocomposite coatings for healing surface defects of glass fibers and improving interfacial adhesion

Cited by 108 publications

References 32 publications

Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals

Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals

Ageing Models and Accelerated Ageing Tests of Glass Fiber Reinforced Concrete

Layer-by-Layer technique employed to construct multitask interfaces in polymer composites

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