Enhancement of scratch-resistance properties of methacrylated UV-cured coatings

Sangermano, Marco; Gaspari, E.F.; Vescovo, Lorenzo; Messori, Massimo

doi:10.1016/j.porgcoat.2011.04.018

Cited by 17 publications

(6 citation statements)

References 13 publications

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“…It should be pointed out that the MAPTMS is frequently used as a bonding agent in various mixtures which are cured via a free radical mechanism. [ 37,43,44 ] Moreover, the fabrication of UV‐cross‐linkable hybrid coatings made of a two‐component sol–gel mixture consisting of MAPTMS and TEOS has been reported as well. [ 45 ] Therefore, formation of covalent linkage between organic and silica component is also expected in present system.…”

Section: Resultsmentioning

confidence: 99%

Proton Conductive Membranes from Covalently Cross‐Linked Poly(Acrylate)/Silica Interpenetrating Networks

Zhyhailo

Horechyy

Meier‐Haack

et al. 2021

Macro Materials & Eng

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The preparation of hybrid proton conductive membranes that comprise of covalently linked interpenetrating polymer and inorganic networks is reported. The hybrid membranes are synthesized via simultaneous photo‐initiated polymerization and sol–gel processing. The simultaneous processing permeates fabrication of the membranes that comprises covalently cross‐linked polymeric and inorganic networks. The membranes are characterized by attenuated total reflectance‐Fourier transform infrared spectroscopy, scaning electron microsopy, thermogravimetric analysis, differential scanning calorimetry, in order to confirm their chemical composition, structure, and morphology. An addition of 3‐methacryloxypropyl trimethoxysilane into the sol–gel composition allows the formation of covalent linkages between polymeric and inorganic networks, which facilitates a uniform distribution of the molecular components across the fabricated membranes. The incorporation of the silica network leads to an increase in water retention and proton conductivity of hybrid membranes as compared to their purely polymeric analogues.

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Section: Resultsmentioning

confidence: 99%

Proton Conductive Membranes from Covalently Cross‐Linked Poly(Acrylate)/Silica Interpenetrating Networks

Zhyhailo

Horechyy

Meier‐Haack

et al. 2021

Macro Materials & Eng

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“…In doing so, it is possible to exploit the advantages of this fast and solvent-free radiation-induced polymerization, with the sol-gel benefits, leading to the formation of hybrid networks, generally in the form of thin coatings with superior scratch endurance, improved abrasion, heat and radiation resistance, and desirable mechanical and optical properties [87,88,89]. Vinylether, epoxide, or acrylate groups have been used as organic monomers, since they can undergo fast photopolymerizations [90,91,92] but even UV-mediated click reactions has also been applied [93,94]. Organic and inorganic precursors should be compatible in the reactive mixture.…”

Section: Organic–inorganic Hybrid Dual-curing Systemsmentioning

confidence: 99%

State of the Art in Dual-Curing Acrylate Systems

et al. 2018

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Acrylate chemistry has found widespread use in dual-curing systems over the years. Acrylates are cheap, easily handled and versatile monomers that can undergo facile chain-wise or step-wise polymerization reactions that are mostly of the "click" nature. Their dual-curing processes yield two distinct and temporally stable sets of material properties at each curing stage, thereby allowing process flexibility. The review begins with an introduction to acrylate-based click chemistries behind dual-curing systems and relevant reaction mechanisms. It then provides an overview of reaction combinations that can be encountered in these systems. It finishes with a survey of recent and breakthrough research in acrylate dual-curing materials for shape memory polymers, optical materials, photolithography, protective coatings, structured surface topologies, and holographic materials.

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“…Therefore, to increase scratch resistance, the in situ formation of the inorganic nanodomains through sol-gel processes has been demonstrated as one of the best strategies. 36 Some of the data extracted from scratch test are collected in Table 3. resistance to penetration in reference to the neat material whereas the addition of GPTMS reduces this characteristic.…”

Section: Scratch Resistance Analysismentioning

confidence: 99%

Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors

Acebo

Fernández‐Francos

Santos³

et al. 2015

European Polymer Journal

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New epoxy-silica hybrid coatings were prepared by a dual process consisting of a sol-gel process using tetraethoxysilane (TEOS) or 3-glycidyloxypropyl trimethoxysilane (GPTMS) in the presence of hyperbranched poly(ethyleneimine) with ethoxysilyl groups at the chain ends (PEI-Si) followed by a homopolymerization of diglycidylether of bisphenol A (DGEBA) using 1-methylimidazole (1-MI) as anionic initiator. The influence of the amount of TEOS and GPTMS in the characteristics of the coating was examined. Thin transparent films were obtained and their morphology was observed by transmission electron microscopy (TEM). The hydrolytic condensation was confirmed by 29Si-NMR studies. Cage-like nanometric structures were formed in case of adding GPTMS and bigger silica particles on adding TEOS to the formulation. Thermal stability was evaluated by thermogravimetry and the scratch resistance properties were also investigated, showing an improvement in resistance to break and to detachment in all the coatings containing GPTMS. Polymer Journal as you recommended us.As you mentioned in your decision letter the main remark is that the novelty has not been stressed sufficiently. However, the general comments of the reviewers were not bad.We recognized that the redaction did not include the novelty until we reach the discussion part and therefore we have included in the new version your opinion and we have stressed the novelty achieved in our work from the beginning. We have also included some changes suggested by the reviewers. Thus, we hope you can go further with the acceptance of our paper in European Polymer Journal.Looking forward to hearing from you, I remain. Cover LetterComments to the reviewers.Reviewer #1: Graphical abstract:It is not clear what the authors want to transmit in the graphical abstract. The paper is not directly addressing the application procedure of the coatings. The graphical abstract should be adapted to show more clearly the real work addressed in this paper. We have changed completely the graphical abstracts and we hope that the new version clearly represent the work contained in the article HighlightsThe highlights do not reflect the main findings / advances in this paper. They should be rewritten to show the key findings / novelty. We have also changed and stressed the key findings AbstractThe abstract needs to be revised. Does the TEOS / GPTMS affect the properties of the hyperbranched polymer? So yes, in which direction? The abstract should be more indicative of what the reader will find in the paper. The abstract has been rewritten. The addition of TEOS does not affect the properties of the hyperbranched polymer, but the properties of the final hybrid thermoset. The addition of TEOS leads to the formation of bigger particles, quite different from the cage-like particles formed from PEI-Si and/or GPTMS. The addition of GPTMS produces an improvement in resistance to break and to detachment in all the coatings. The incorporation of GPTMS to TEOS containing formulations allowed to prepar...

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Enhancement of scratch-resistance properties of methacrylated UV-cured coatings

Cited by 17 publications

References 13 publications

Proton Conductive Membranes from Covalently Cross‐Linked Poly(Acrylate)/Silica Interpenetrating Networks

Proton Conductive Membranes from Covalently Cross‐Linked Poly(Acrylate)/Silica Interpenetrating Networks

State of the Art in Dual-Curing Acrylate Systems

Hybrid epoxy networks from ethoxysilyl-modified hyperbranched poly(ethyleneimine) and inorganic reactive precursors

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