Effect of fiber surface modification on water absorption and hydrothermal aging behaviors of GF/pCBT composites

Yang, Bin; Zhang, Jifeng; Zhou, Li; Lu, Mingkun; Liang, Wenyan

doi:10.1016/j.compositesb.2015.08.056

Cited by 60 publications

(37 citation statements)

References 33 publications

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“…The results show that the dynamic load heavily threatens the interfacial bonding strength between hybrid fibers and polymer matrix. This conclusion follows our flexural results of fiber reinforced plastics (FRPs) in consideration of service condition , in which we concluded that the environment, especially the elevated temperatures, could affect the interfacial properties significantly. Therefore, developing composites with improved fiber/matrix interfacial properties at various temperatures is very important.…”

Section: Introductionsupporting

confidence: 86%

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Enhanced adhesion between glass, carbon, and their hybrid fiber‐bundle with epoxy at room and elevated temperatures: A comparative study between graphene and MWCNT filled interface strategies

Yang

Xuan

et al. 2017

Polymer Composites

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The nanomaterial effect on the interfacial properties between glass, carbon, and their 1:1 hybrid fiber‐bundle reinforced epoxy resin is evaluated based on fiber‐bundle pull‐out tests. Graphene and multi‐walled carbon nanotubes (MWCNT) are incorporated in the interfacial region. Three contents of nanomaterials that including 0.1, 0.3, and 0.5 wt% are considered, and the temperatures are set as 25 and 150°C during the pull‐out tests, respectively. The interfacial shear strength (IFSS) of graphene and MWCNT filled interfaces is compared. Results indicate that both the two nanomaterials can improve the IFSS and shear toughness effectively. The IFSS of 0.3 wt% MWCNT filled glass‐carbon/epoxy hybrid specimens is increased by 82% at 150°C, which is the largest among all the specimens. According to scanning electron microscope (SEM) morphologies of fiber surfaces, the IFSS improvements are ascribed to the efficient stress transfer by the enhanced bonding performance after filling nanomaterials in the interphase. POLYM. COMPOS., 39:E2370–E2380, 2018. © 2017 Society of Plastics Engineers

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Section: Introductionsupporting

confidence: 86%

“…Since the temperature affects the thermo status of polymers and further declines the IFSS of the pull‐out specimens , we test the glass‐transition temperature ( T g ) of the cured epoxy resin by dynamic thermomechanical analysis (DMA). The DMA test was performed on DMA‐2980, TA.…”

Section: Methodsmentioning

confidence: 99%

Enhanced adhesion between glass, carbon, and their hybrid fiber‐bundle with epoxy at room and elevated temperatures: A comparative study between graphene and MWCNT filled interface strategies

Yang

Xuan

et al. 2017

Polymer Composites

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“…is is attributed to deterioration and weakening of the matrix interfaces [16]. e purpose of this study was to improve the critical mechanical properties of epoxy resin composites by adding ENR elastomer with nano ller.…”

Section: Introductionmentioning

confidence: 99%

Performance of Novel Engineered Materials from Epoxy Resin with Modified Epoxidized Natural Rubber and Nanocellulose or Nanosilica

Lanna

Suklueng

Kasagepongsan

et al. 2020

Advances in Polymer Technology

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Performance of new engineered material from epoxy resins with modified epoxidized natural rubber (ENR) and nanofillers were investigated. ENR from renewable natural crop resources is a type of green material with potential to partially substitute or replace and toughen petrochemical-based polymers. Nanocomposites (epoxy resin/ENR/fillers nanoparticles) were characterized with Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), atomic force microscope (AFM), and scanning electron microscopy (SEM). Comparison of characterized and mechanical properties of nanofiller reinforced with both nanocellulose and nanosilica were studied. The nanocomposites were characterized for their mechanical properties (e.g., impact strength, tensile strength) and thermal degradation behaviour by thermal gravimetric analysis (TGA). Mechanical property investigation results show that, the impact strength of nanocomposites, can be improved by blending in ENR 50 mixed with nanofiller, relative to the baseline nanocomposite mixers. The nanofiller loading in epoxy composite showed the highest improvement in mechanical properties at 0.75 phr (parts per hundred of resin). Effects of accelerated weathering aging were evaluated, and the observed changes were larger with nanosilica than with nanocellulose filler. Here, the accelerated aging increase in tensile properties was found to be 10% after 14 days in both nanofillers, while the other mechanical properties did not change significantly. These nanocomposites are expected to have high wear rates limiting their service life.

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“…By employing the method of evaporative deposition, Yang et al . successfully coated silica nanoparticles on the surface of glass fibers. Following the nanoparticle coating, water absorption and mechanical tests were performed to examine the possible improvements on the hydrothermal properties of GFRP composites.…”

Section: Introductionmentioning

confidence: 99%

Improved hydrothermal aging performance of glass fiber‐reinforced polymer composites via silica nanoparticle coating

Zhang

2019

J of Applied Polymer Sci

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The long-term exposure to a hot and humid environment severely damages the bonding integrity of fiber-reinforced polymer composites and thus significantly degrades their mechanical performances. In this work, we aim to develop an improvement procedure for effectively enhancing the bonding strength in glass fiber-reinforced polymers (GFRPs). Glass fibers were coated with a thin layer of silica nanoparticles of different concentrations by the use of the evaporative deposition method. Micromorphological comparisons in terms of scanning electron microscope imaging demonstrate significant improvements on the surface roughness of glass fibers. With the coated glass fibers, GFRP composite laminates were designed, molded through the vacuum-assisted resin infusion technique, and experimentally tested for quantitatively studying their hydrothermal aging performance. The water absorption tests conducted for three exposure temperatures suggest that both the water diffusion rate and the equilibrium water content can be effectively reduced due to the introduction of the silica coating. With increased exposure temperatures, however, the desired reductions become much less significant. A so-called water-channel diffusion mechanism along fiber/resin interfaces was proposed to explain the coupling effects of silica coating and exposure temperature. Reductions of water diffusion rate and equilibrium water content were expected to slow down the hydrothermal aging performance of GFRPs. For this purpose, both uniaxial tensile test and three-point bending test were subsequently performed on GFRP specimens that have been subjected to different coating concentrations, exposure temperatures, and exposure durations. When compared with untreated GFRP specimens, both experiments demonstrate that the residual strength and stiffness can be effectively promoted through coating a thin layer of silica nanoparticles on glass fiber surfaces.

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Effect of fiber surface modification on water absorption and hydrothermal aging behaviors of GF/pCBT composites

Cited by 60 publications

References 33 publications

Enhanced adhesion between glass, carbon, and their hybrid fiber‐bundle with epoxy at room and elevated temperatures: A comparative study between graphene and MWCNT filled interface strategies

Enhanced adhesion between glass, carbon, and their hybrid fiber‐bundle with epoxy at room and elevated temperatures: A comparative study between graphene and MWCNT filled interface strategies

Performance of Novel Engineered Materials from Epoxy Resin with Modified Epoxidized Natural Rubber and Nanocellulose or Nanosilica

Improved hydrothermal aging performance of glass fiber‐reinforced polymer composites via silica nanoparticle coating

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