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Amine-Based Latex Coatings for Indoor Air CO2 Control in Commercial Buildings.

08:00 EDT 11th April 2019 | BioPortfolio

Summary of "Amine-Based Latex Coatings for Indoor Air CO2 Control in Commercial Buildings."

High levels of indoor air CO2 in commercial buildings can lead to various health effects, commonly known as sick building syndrome. Passive control of indoor air CO2 through solid adsorbents incorporated into the paint offers a high potential to handle CO2 without utilizing much energy. This study focuses on incorporating silica supported aminopolymers into a polyacrylic based latex that could be used as a buffer material for passive control of CO2 in enclosed environments. To maximize the effect of the pigment (adsorbent), paints were all prepared at critical pigment volume concentration (CPVC) levels. CO2 at 800 ppm and 3000 ppm were used to asses both low and high level contamination. The removal efficiency of the surface coatings was evaluated within typical time frames (10 h for adsorption and desorption). Our lab-scale chamber results indicated that silica-TEPA based paint with 70 wt% loading exhibits the best adsorption performance, comparable to that of powder-based sorbent, with only a ~20% decrease in adsorption efficiency. Our results also revealed that optimization of paint formulation is critical in passively controlling indoor air CO2. The findings of this study highlight the potential of amine-based adsorbents as pigments in high PVC paints for indoor CO2 control in commercial buildings.

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This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252
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A milky, product excreted from the latex canals of a variety of plant species that contain cauotchouc. Latex is composed of 25-35% caoutchouc, 60-75% water, 2% protein, 2% resin, 1.5% sugar & 1% ash. RUBBER is made by the removal of water from latex.(From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). Hevein proteins are responsible for LATEX HYPERSENSITIVITY. Latexes are used as inert vehicles to carry antibodies or antigens in LATEX FIXATION TESTS.

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Allergic reaction to products containing processed natural rubber latex such as rubber gloves, condoms, catheters, dental dams, balloons, and sporting equipment. Both T-cell mediated (HYPERSENSITIVITY, DELAYED) and IgE antibody-mediated (HYPERSENSITIVITY, IMMEDIATE) allergic responses are possible. Delayed hypersensitivity results from exposure to antioxidants present in the rubber; immediate hypersensitivity results from exposure to a latex protein.

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