Quantitative evaluation of scratch resistance of polymeric coatings based on a standardized progressive load scratch test

Browning, Robert; Lim, G. T.; Moyse, A.; Sue, Hung‐Jue; Chen, H.; Earls, Jim D.

doi:10.1016/j.surfcoat.2006.06.007

Cited by 86 publications

(56 citation statements)

References 40 publications

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“…The stress-strain curves in this figure were determined through compression tests of cylindrical specimens, with a length of approximately 5 mm. Some limited sensitivity to strain (deformation) rate effects were found, but as shown in Table 2 [Browning et al 2006;Holmberg et al 2005]. The scratch direction is indicated by the arrow and the scale is given by the dashed line (0.25 mm).…”

Section: Resultsmentioning

confidence: 99%

Delamination of thin coatings at scratching: experiments and numerics

Wredenberg

Larsson

2009

JOMMS

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Scratching of thin coatings on hard substrates is studied experimentally and numerically, in the latter case by use of the finite element method. In particular the delamination behaviour at scratching, by increasing the normal load up to failure, is of interest. The adhesion of the coating to the substrate is modelled as a cohesive zone where relevant model parameters are determined experimentally using the double cantilever beam test with uneven bending moments (DCB-UBM). Good correlation between experimental and numerical results were achieved and the most important finding confirms the fact that the delamination behaviour was very much dependent on the critical energy release rate of the film/substrate interface. The results achieved are directly relevant for thin film polymer coatings but can also be applied in more general situations as a comprehensive parameter study is performed using the finite element method.

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Section: Resultsmentioning

confidence: 99%

Delamination of thin coatings at scratching: experiments and numerics

Wredenberg

Larsson

2009

JOMMS

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“…The thickness of the acrylic coating layer is approximately 60 lm and the thickness of the steel substrate is 813 lm. The details of the sample preparation can be found elsewhere [27]. The second model coating system is a hard coating on a soft substrate, i.e., a hard polyurethane coating on a polypropylene substrate with E c /E s = 1.52 and r yc / r ys = 2.08.…”

Section: Model Coating Systemsmentioning

confidence: 99%

“…Scratch tests were performed at room temperature using a custom-built scratch machine with a 1 mm diameter stainless steel spherical tip [27]. The scratch length was set at 150 mm.…”

Section: Scratch Testing and Analysismentioning

confidence: 99%

“…The above findings provide important insights in aiding fundamental understanding of the observed polymer scratch phenomena. However, research on polymer coating surface scratch behavior is still largely lacking [23][24][25][26][27]. The recently established ASTM and ISO standards [28,29] for polymer scratch, which have been shown to be effective for the study of bulk polymer scratch [30], has been demonstrated to exhibit good potential as a tool for investigating scratch behavior of polymeric coatings [27].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Modeling of Scratch Behavior of Polymeric Coatings on Hard and Soft Substrates

et al. 2009

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An ASTM standard scratch test is utilized to study the scratch behavior of polymeric coatings on soft and hard substrates. Depending on the different combination of polymeric coatings and substrates utilized, various damage modes can take place, which include coating delamination, transverse cracking, and buckling failure. A soft coating on a hard substrate will give rise to an entirely different scratch damage pattern from those of a hard coating on a soft substrate. The stress and strain responses of scratch on polymeric coating are analyzed using three-dimensional finite element (FE) simulation. The analysis provides mechanistic insights for the observed polymer coating deformation mechanisms and failure modes. Usefulness of the ASTM scratch method and FE modeling to evaluate polymer coating scratch behavior is discussed.

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“…Material characteristics such as ductility (Browning et al, 2006;Hadal and Misra, 2005), crystallinity (Surampadi et al, 2007;Moghbelli et al, 2008), hardness (Rodriguez et al, 2007;Briscoe et al, 1996) and surface roughness (Wong et al, 2004b) can significantly influence the scratch resistance of polymers. Kurkcu et al (2014) pointed out that the scratch resistance of polymers can be enhanced by the incorporation of hard filler.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle type effects on the scratch resistance of polyethylene-based nanocomposites

Alghamdi

2017

Int. j. adv. appl. sci

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The purpose of this paper is to investigate the effect of nanoparticle type on the scratch resistance of polyethylene-based nanocomposites at two ambient temperatures and various scratch velocities. An in-house pre-mix procedure is used to enhance the scratch resistance of polyethylene blend by the addition of three different types of nanoparticles, which are compatible with the host matrix. The results showed a good dispersion of nanoparticles into the host material matrix. The scratch resistance of polyethylene-based nanocomposites is significantly influenced by the type of nanoparticles at both testing temperatures. The addition of low volume fraction (0.5 wt.%) of nanoclay and CNT showed a significant increase in the scratch resistance of nanocomposite material at the highest scratching velocity for both testing temperatures. While, slight effect of the embedding of nanoclay was indicated at low scratch velocity. The addition of 0.5 wt% CB resulted in a reduction in the scratch resistance at all testing parameters.

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Quantitative evaluation of scratch resistance of polymeric coatings based on a standardized progressive load scratch test

Cited by 86 publications

References 40 publications

Delamination of thin coatings at scratching: experiments and numerics

Delamination of thin coatings at scratching: experiments and numerics

Mechanical Modeling of Scratch Behavior of Polymeric Coatings on Hard and Soft Substrates

Nanoparticle type effects on the scratch resistance of polyethylene-based nanocomposites

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