Use of Polymer/Organoclay Nanocomposite Surface Treatment as Water/Ion Barrier for Concrete

Leung, Christopher Kin Ying; Zhu, Honggang; Kim, Jang Kyo; Woo, Ricky S.C.

doi:10.1061/(asce)0899-1561(2008)20:7(484)

Cited by 41 publications

(23 citation statements)

References 11 publications

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“…The water vapor transmission and the salt spray resistance tests were conducted. Compared with the neat polymers, the polymer nanocomposites are more effective in inhibiting the ingress of chloride ion into the concrete; with 3 wt% organo clay the polymer nanocomposite showing the best performance (30).…”

Section: Coatingsmentioning

confidence: 99%

Polymer Nanocomposites in Building, Construction

Feldman

2014

Journal of Macromolecular Science, Part A

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Nanotechnology is an enabling technology allowing to do new things in almost every conceivable area. Initial efforts to exploit nanoscience/nanotechnology development in the construction industry focused mainly on understanding phenomena and improving performance of existing materials. Recently, polymer nanocomposites started to be introduced in other areas like the construction industry.Polymer nanocomposite field attracts considerable attention these days due to a variety of potential practical applications. They have offered a great opportunity in sustainable construction/green building application due to their efficiency and environmental protection. Their use in the construction industry is still less known outside the research area. This paper is a short review of recent studies done in this area, taking into account that some nano based materials are ready to be used by the construction industry. This review covers some studies done in the polymer nanocomposite applications in construction basic materials such as concrete, asphalt, thermal and sound insulation, adhesives, coatings, plastics and in energy.

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Section: Coatingsmentioning

confidence: 99%

Polymer Nanocomposites in Building, Construction

Feldman

2014

Journal of Macromolecular Science, Part A

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“…Nanoparticles have been widely used in many fields, including food, medicine, pharmacy, chemical and biological testing, manufacturing, building materials, and coatings [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Zhang et al [15], Bagherzadeh and Mahdavi [16], and Cheng et al [17] indicated that nanomaterials can greatly improve the strength, toughness, ductility, impermeability, corrosion resistance, and wear resistance of polymer coatings for metal protection.…”

Section: Introductionmentioning

confidence: 99%

“…Nanomaterials have also been used in concrete coatings for durability enhancement. Leung et al [20], Woo et al [21], and Scarfato et al [22] showed that nanoclay in polymer paints substantially improves protection in concrete, especially against moisture permeation, chloride ion penetration, salt attack, surface water repellency, and color change. Liao et al [23] and Li et al [24] investigated the effect of adding nano-SiO 2 or nano-TiO 2 on the property of epoxy resin coatings and observed that the materials effectively improve the hydrophobicity of coated concrete.…”

Section: Introductionmentioning

confidence: 99%

Improvements of Nano-TiO2 on the Long-Term Chloride Resistance of Concrete with Polymer Coatings

Cui

Zhou

et al. 2019

Coatings

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The long-term chloride resistance of concrete treated with nano-TiO2-modified polymer coatings was studied. Three types of organic film-forming paints: polyurethane, epoxy resin, and chlorinated rubber were selected, and concrete specimens with nano-TiO2-modified coatings were fabricated. Then, specimens were subjected to periodical ultraviolet-accelerated aging and subsequent Coulomb electric flux experiments. Nanomodified coatings before and after ultraviolet aging were observed through scanning electron microcopy. Results indicate that the nano-TiO2 particles can effectively reduce the microdefects in coating films and alleviate damages due to aging. As a result, nano-TiO2 can significantly reduce the Coulomb fluxes of coated concrete before and after coating aging, and the average reduction amplitudes reached 66% and 44%. That is, nano-TiO2 can remarkably improve the long-term chloride resistance of coated concrete. In addition, we established the development models of the ultraviolet aging and chloride resistance of coated concrete according to an S-shaped curve.

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“…These polymeric systems significantly upgrade moisture penetration resistance of the aforementioned material. 11,12 Although there are a few scientific contributions about aluminosilicate in acrylic varnishes used for wood protection, 13,14 this reinforcing nanofiller has not yet been circumstantially tested as a component of coating compositions based on vegetable oil. Alkyds and uralkyds prepared by using drying and/or nondrying oils are commonly offered on the market as DIY-type (''Do It Yourself'') varnishes and paints designed for application onto various wooden elements such as doors, window frames and sills, wainscots, handholds, and furniture.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of nanocomposite uralkyd varnishes for a wood substrate

Kowalczyk

2014

J Coat Technol Res

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Three types of commercially modified montmorillonites (mMMT) have been tested as nanofillers in solventborne uralkyd coating compositions. The mMMT was introduced in the amount of 0.5 wt part into a coating system based on a soya oil fatty acid and isophorone diisocyanate (100 wt parts), applied onto a wood substrate, and oxidatively cured at room temperature for 14 days. An incorporation of organophilized montmorillonite into a coating composition significantly affects its viscosity (mMMT with a higher gallery space value increases that parameter) and slightly reduces the hardness of a dry coat. Moreover, a clay nanofiller increases glass transition temperature, abrasion resistance, elasticity, and impact resistance as well as barrier properties (measured using a conventional gravimetric method and an electrochemical impedance spectroscopic test) of a cured varnish. In the case of chemical resistance to acetone, lower blistering of modified coats was found.

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Use of Polymer/Organoclay Nanocomposite Surface Treatment as Water/Ion Barrier for Concrete

Cited by 41 publications

References 11 publications

Polymer Nanocomposites in Building, Construction

Polymer Nanocomposites in Building, Construction

Improvements of Nano-TiO2 on the Long-Term Chloride Resistance of Concrete with Polymer Coatings

Preparation and characterization of nanocomposite uralkyd varnishes for a wood substrate

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