Project's information
Project's title | Preparation, study on characteristics, and properties of topcoat on the base of emulsion polymer having against heat, abrasion durability, microorganisms inhibition applied in construction and architectural field |
Project’s code | KHCBHH.01/20-22 |
Research hosting institution | Institute for Tropical Technology |
Project leader’s name | Prof. Dr. Thai Hoang |
Project duration | 01/01/2020 - 31/12/2022 |
Project’s budget | 1,500 million VND |
Classify | Excellent |
Goal and objectives of the project | - Successful preparation of paint system on the base of emulsion polymer having microorganisms inhibition, abrasion durability, and against heat. |
Main results | - Theoretical results: + The suitable silane coupling agent was determined, namely 3-(trimethoxysilyl) propyl methacrylate silane for surface modification of TiO2 and SiO2 nanoparticles (NPs). The suitable content of silane coupling agents modified NPs was 3 wt.% (in comparison with nanoparticles weight). The organic modification contributed to enhancing nanoparticles' dispersibility in the polymer matrix (emulsion acrylic resin). As a result, properties (i.e. mechanical properties, weather durability, thermal stability, etc.) of the emulsion acrylic coating loaded modified NPs were better than those of either neat acrylic coating or acrylic coating filled with pristine NPs. + Synergistic effectiveness of organically modified TiO2 NPs (m-TiO2 NPs) and organically modified SiO2 NPs (m-SiO2 NPs) for acrylic coatings’ properties (i.e. abrasion resistance, solar reflectance, weather resistance, etc.) was clarified. The acrylic coating filled with 2 wt.% NPs (weight ratio of m-TiO2 NPs and m-SiO2 NPs = 7/3) had the best properties among investigated samples. + Synergistic effectiveness of organically modified NPs, Ag-Zn/zeolite (Irgaguard B 5000) inorganic antibacterial additive, organic antimicrobial additive (2-n-octyl-4-izothiazolin-3-one (OIT)) and nano Cu2O for antimicroorganisms activities of acrylic coating was investigated. Consequently, the coating could kill almost (99.99 %) bacteria strains, i.e. E.Coli and S.Aureus (the test was carried out according to TCVN 9064:2012) and no appearance of mold on coating’s surface after 28 days of culture (Severity level of 1 in accordance with TCVN 7699-2-10:2007). + Successful preparation of emulsion acrylic coating met the technical requirement in accordance in TCVN 8652:2012 with high abrasion durability, good microorganism inhibition (killing 99.99% bacteria strains (E.Coli and S.Aureus), no appearance of mold on surface after 28 days of culture – severity level of 1 in accordance with TCVN 7699-2-10:2007), high cooling performance. This paint system could reduce surface temperature by 10 oC and inside temperature by 7.5 oC in comparison with outdoor grey waterproof paint (waterproof paint was prepared by incorporating cement with acrylic and styrene-acrylic solution). - Applied results: Produced successfully technological production process of multifunctional topcoat (microorganisms inhibition, abrasion durability, against heat) in pilot scale and technological production process of alkali resisting primer on the base of acrylic emulsion polymer being compatible with multifunctional topcoat in pilot scale. |
Novelty and actuality and scientific meaningfulness of the results | - Successful preparation of multifunctional paint system (abrasion durability, microorganisms inhibition, against heat) on the base of acrylic emulsion polymer incorporation with m-TiO2 NPs, m-SiO2 NPs, antimicroorganism additives (Irgaguard B 5000 and OIT) and Cu2O NPs. - Successful preparation of acrylic coating system could be used as ink for 3D printer device. |
Products of the project | - Scientific papers in referred journals (list): |
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