Synthesis and characterization of waterborne UV-curable polyurethane nanocomposites based on the macromonomer surface modification of colloidal silica

Zhang, Sheng; Yu, Aixia; Song, Xiaoguo; Liu, Xiaoya

doi:10.1016/j.porgcoat.2013.02.019

Cited by 35 publications

(18 citation statements)

References 39 publications

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“…A wide spectrum of organic, photocatalytic, and silver ion antimicrobial agents have been applied to date as coatings [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51]. This includes silver nanoparticles [52], combinations of various metal ions and various metalic nanoparticles [53,54], and combinations of all of the above [55][56][57][58][59][60][61][62][63][64][65][66][67][68][69]. Photocatalytic agents (e.g., titanium dioxide, ZnO) require conditions of water and oxygen and UV A wide spectrum of organic, photocatalytic, and silver ion antimicrobial agents have been applied to date as coatings [33][34][35][36][37][38][39][40][41][42]…”

Section: Increased Durabilitymentioning

confidence: 99%

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Innovative Wood Surface Treatments Based on Nanotechnology

Papadopoulos

Taghiyari

2019

Coatings

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This work reviewed innovative wood surface treatments based on nanotechnology. It is well documented in the literature that the cell walls of wood present significant porosity; this porosity is on a molecular scale. The main reason for the use of nanotechnology in wood science and technology is the unique characteristic of nano-based materials to effectively penetrate deeply into wood substrates, which, in turns, results in the alteration of their surface chemistry. This subsequently causes an improvement in wood properties. Any potential change in the wood properties due to treatment with nanomaterials is based on the higher interfacial area which is developed due to the treatment. This occurs because the number of particles is significantly reduced to the nanoscale. The nanomaterials improve the properties of wood as a raw material and alter its original features to a limited extent. However, their potential impact on both health and the environment should be addressed by applying tools such as life-cycle assessments. This will avoid mistakes being made in which new technologies are released on the market prior to an impact assessment having been carried out.

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Section: Increased Durabilitymentioning

confidence: 99%

“…The main advantage of using nanosilica is its high hardness. Furthermore, nanosilica can easily be chemically modified in order to improve its compatibility with the polymer [67]. It has been reported that the modification of silica with a series of silanes can improve scratch and abrasion resistance [61,73].…”

Section: Improvement Of Mechanical Propertiesmentioning

confidence: 99%

Innovative Wood Surface Treatments Based on Nanotechnology

Papadopoulos

Taghiyari

2019

Coatings

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“…Coating, as an important means of closing wood vessels and improving the stability of wood use, has also been paid more and more attention. Compared with the traditional solvent-based coating, such as polyurethane and nitro [5], the waterborne coatings have the characteristics of low viscosity, low toxicity, anti-flow hang [6], fast drying speed [7], good color, good flexibility, good water resistance, abrasion resistance, aging resistance, and yellowing resistance [8], so it is the favorite of many consumers [9]. However, during the use of waterborne wood coatings, due to the complex coating process and the wet expansion and shrinkage of the wood, the coating causes cracking and other defects easily [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Urea Formaldehyde @ Epoxy Resin Microcapsule on Waterborne Wood Coatings

2019

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Urea formaldehyde @ epoxy resin microcapsules were prepared by two steps in situ polymerization, and the morphology and composition of microcapsules with different mass ratios of core to wall material were examined by scanning electron microscopy (SEM) and infrared (IR) spectroscopy. The microcapsules were added to the waterborne wood coatings to explore the effect of microcapsules on the properties of coatings and their self-repairing characteristics, and the gloss, hardness, adhesion, and impact resistance of the waterborne wood coatings were investigated. The results showed that when the concentration of microcapsule was 10.0% and the mass ratio of core to wall material was 0.83:1, the waterborne wood coatings had a good comprehensive performance and less negative impact. In the scratch test, the waterborne wood coatings with a concentration of 10.0% microcapsule had good repair ability. The possibility of applying the self-repairing technology of microcapsule to waterborne wood coatings was discussed through the preparation and performance characterization of self-repairing coatings and the results can become a guideline for the engineering application of waterborne wood coatings.

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“…Crosslinking of the PU film obtained after synthesis is mainly used to improve mechanical properties and chemical and water resistance. 18,22,[32][33][34][35][36][37][38][39][40][41] Usually, UV-cured waterborne technology is used by industrial due to the less environmental impact. 4 In order to obtain a crosslinked film, three components are usually used an oligomer (e.g., acrylated polyurethane), a photoinitiator and a reactive diluent.…”

Section: Introductionmentioning

confidence: 99%

Cationic water dispersion of bio-sourced cross-linked polyurethane

et al. 2019

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Synthesis and characterization of waterborne UV-curable polyurethane nanocomposites based on the macromonomer surface modification of colloidal silica

Cited by 35 publications

References 39 publications

Innovative Wood Surface Treatments Based on Nanotechnology

Innovative Wood Surface Treatments Based on Nanotechnology

Preparation and Characterization of Urea Formaldehyde @ Epoxy Resin Microcapsule on Waterborne Wood Coatings

Cationic water dispersion of bio-sourced cross-linked polyurethane

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