Interfacial Aspects of Polymer Coating by Electropolymerization

Subramanian, R. V.; Jakubowski, James J.; Williams, Fred D.

doi:10.1080/00218467808075113

Cited by 33 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Subramanian et al [46] described a similar pull-out behavior. The relationship that describes our data is therefore: Figure 10.…”

Section: Adhesion Behavior Between Grafted Carbon Fibers and A Ps Matrixmentioning

confidence: 67%

“…Even though the experimental scatter is large, distinct trends between the original and unmodified fibers can be seen. The apparent interfacial shear strength IFSS , corresponding to the slope of the pull-out force fiber area curve [46], was determined by a linear fit to the measured data. The results Figure 11.…”

Section: Adhesion Behavior Between Grafted Carbon Fibers and A Ps Matrixmentioning

confidence: 99%

See 1 more Smart Citation

Polystyrene-grafted Carbon Fibers: Surface Properties and Adhesion to Polystyrene

Bismarck

Pfaffernoschke

Springer

et al. 2005

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

It is highly desirable to improve attractive interactions between carbon fibers and unreactive thermoplastic matrices to the possible maximum. This could be achieved by a simple grafting process to create a covalently bonded interface or interlayer, which should result in cohesive interactions between the polymer-grafted fibers and the same matrix material, leading to a better adhesion strength in the obtained composite material. Here, we are describing the grafting of styrene onto unmodified and unsized carbon fibers via free-radical bulk polymerization in the presence of fibers. After grafting, the surface properties of the carbon fiber *Author to whom correspondence should be addressed. E-mail: a.bismarck@imperial.ac.uk approach those of pure polystyrene which was proven by contact angle and zeta (-) potential measurements. As indicated by the water contact angle, the carbon fiber surface becomes more hydrophobic. Scanning electron microscopy (SEM) provides evidence of grafted polymer. This simple procedure results in a continuous polystyrene coating. The fiber diameter increases significantly after polymer grafting. The adhesion and fracture behavior between the original and polystyrene-grafted carbon fibers to a polystyrene (VESTYRON Õ ) matrix was characterized using the single-fiber pull-out test. There is a considerable increase in the measurable adhesion, i.e., the interfacial shear strength IFSS , by almost 300% between the grafted fibers and polystyrene as compared to untreated original fibers. Two planes of interfacial failure could be distinguished; first in the fiber coating interface leading to lower interfacial shear strength and second in the PS-matrix-PS-coating interphase resulting in a higher interfacial shear strength. In addition to the improved adhesion, there are also clear differences in the pull-out behavior between the nongrafted and grafted fibers. After the initial debonding process corresponding to the maximal pull-out force is completed, the pull-out force is increasing again.

show abstract

“…Subramanian et al [46] described a similar pull-out behavior. The relationship that describes our data is therefore: Figure 10.…”

Section: Adhesion Behavior Between Grafted Carbon Fibers and A Ps Matrixmentioning

confidence: 67%

Section: Adhesion Behavior Between Grafted Carbon Fibers and A Ps Matrixmentioning

confidence: 99%

Polystyrene-grafted Carbon Fibers: Surface Properties and Adhesion to Polystyrene

Bismarck

Pfaffernoschke

Springer

et al. 2005

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

show abstract

“…The apparent interfacial shear strength (τ IFSS ) could afford theinformation of interface adhesion. SFPT is one of the widely applied methods to characterize the interfacial adhesion between the fiber and polymer matrix [30–37]. τ IFSS was calculated from the maximum load ( F max ) required to debond the fiber from the matrix and fiber embedded area ( A e ), as shown in equation: τ IFSS = F max / A e. [31].…”

Section: Methodsmentioning

confidence: 99%

Comparison between dew‐retted and enzyme‐retted flax fibers as reinforcing material for composites

Hu¹,

Ton‐That²,

Denault³

et al. 2011

Polymer Engineering & Sci

View full text Add to dashboard Cite

Two kinds of retted Canadian linseed flax fibers, dew‐retted (F1) and enzyme‐retted flax fibers (F2) were characterized in detail for their applications in composites, such as retting degree, thermal stability, tensile strength, and interfacial behavior in polypropylene (PP) matrix. It's clear from Scanning Electron Micrograph that the aspect ratio of F2 was much higher than that of F1 in the light of their separated elementary fibers in most cases. Instead, the elementary fibers of F1 remained tightly bundled into technical fiber wrapping with more non‐cellulose portions. This reflected its lower retting degree and resulted in its lower thermal stability. Single fiber tensile test and single fiber pull‐out test were used to evaluate the fiber tensile properties and fiber/PP interfacial shear strength, respectively. Better retting degree and fewer damages on F2 endowed F2 better tensile property. Consequently, higher aspect ratio, retting degree, and tensile strength proved F2 to be a kind of better reinforcing material than F1 for composites. POLYM. ENG. SCI., 2012. 2011 published by Society of Plastics Engineers

show abstract

“…Research into the possibility of using ECP to produce non-conducting lms for adhesion promoting applications in carbon-bre-reinforced composites has also received notable attention [6 -12]. Fibres electrochemically coated prior to addition to a matrix resin have been shown to increase impact strength [6,7,10] and in subsequent studies, simultaneous improvements in both the impact and interlaminar shear strengths were measured [7,11,12].…”

Section: Introductionmentioning

confidence: 99%

Electropolymerised acrylic coatings for polymer-metal adhesion enhancement

Cram¹,

Spinks²,

Wallace³

et al. 2003

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

Electrochemical polymerisation (ECP) of acrylic monomers produces thin coatings on metal substrates and is a potentially useful method for forming adhesion promoting tie-layers at a polymer-metal interface. Uniform, passive lms of poly (methyl methacrylate) and poly (glycidyl acrylate) have been formed via a cathodic free radical mechanism on stainless steel electrodes from aqueous electrolytes. The thickness of these lms was found to increase with electrolysis time and the passive nature has been demonstrated by cyclic voltammetry studies. Adhesion tests were performed to compare the adhesion strength and failure mechanisms of various adhesives to coated and uncoated stainless steel substrates. The results indicate that ECP tie-layers can signi cantly increase the adhesive bond strength and alter the failure mechanisms observed. Electropolymerised acrylic coatings on metal substrates are thus seen as a promising approach for pretreatment of metals for adhesion enhancement.

show abstract

Interfacial Aspects of Polymer Coating by Electropolymerization

Cited by 33 publications

References 4 publications

Polystyrene-grafted Carbon Fibers: Surface Properties and Adhesion to Polystyrene

Polystyrene-grafted Carbon Fibers: Surface Properties and Adhesion to Polystyrene

Comparison between dew‐retted and enzyme‐retted flax fibers as reinforcing material for composites

Electropolymerised acrylic coatings for polymer-metal adhesion enhancement

Contact Info

Product

Resources

About