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Liu C, Sun Z, Jiao S, Wang T, Liu Y, Meng X, Zhang B, Han L, Liu R, Liu Y, Zhou Y. Dual-Shell Microcapsules for High-Response Efficiency Self-Healing of Multi-Scale Damage in Waterborne Polymer-Cement Coatings. Polymers (Basel) 2023; 16:105. [PMID: 38201770 PMCID: PMC10781181 DOI: 10.3390/polym16010105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Waterborne polymer-cement coatings have been widely applied in building materials due to their organic solvent-free nature, low cost, and eco-friendliness. However, these coatings can easily crack during the drying process as a result of construction environment factors, compromising the barrier performance of the coating and limiting its large-scale application. In this study, a dual-shell self-healing microcapsule was developed, which can effectively heal damage on a macro scale in waterborne polymer-cement coatings. Specifically, this dual-shell self-healing microcapsule was designed with a silica gel shell and a tannic acid-cuprum (TA-Cu) double-shell structure embedded with an epoxy resin (EP) healing agent, which was successfully fabricated via a two-step in situ polymerization. This silica gel shell self-healing microcapsules can effectively load into waterborne polymer-cement coatings. As the coating dries and solidifies, the silica gel shell of the microcapsule also becomes loose and brittle due to dehydration. This improves the mechanical initiation efficiency of the microcapsules in the coating. This study provides a novel approach for the application of self-healing microcapsules in waterborne coating systems, which can significantly reduce cracking during the drying process of waterborne polymer-cement coatings and improve the service life of the coating under complex conditions.
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Affiliation(s)
- Chenyang Liu
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Zhicheng Sun
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Shouzheng Jiao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China;
| | - Ting Wang
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Yibin Liu
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Xianyu Meng
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Beijing 100123, China; (X.M.); (B.Z.)
| | - Binbin Zhang
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd., Beijing 100123, China; (X.M.); (B.Z.)
| | - Lu Han
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Ruping Liu
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing 102600, China; (C.L.); (T.W.); (Y.L.); (L.H.); (R.L.)
| | - Yuanyuan Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China;
| | - Yang Zhou
- Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China;
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Borisov K, Kalinina A, Bystrova A, Muzafarov A. Aerogel-Like Material Based on PEGylated Hyperbranched Polymethylethoxysiloxane. Polymers (Basel) 2023; 15:4012. [PMID: 37836061 PMCID: PMC10574835 DOI: 10.3390/polym15194012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Aerogels are a class of materials that have gained increasing attention over the past several decades due to their exceptional physical and chemical properties. These materials are highly porous, with a low density and high surface area, allowing for applications such as insulation, catalysis, and energy storage. However, traditional aerogels, such as pure silica aerogels, suffer from brittleness and fragility, which limit their usefulness in many applications. Herein, we have addressed this problem by using organosilicon compounds, namely polymethylsilsesquioxane derivatives, for the synthesis of aerogel-like materials. Specifically, we have developed a novel approach involving surfactant-free synthesis of microcapsules from partially PEGylated hyperbranched polymethylethoxysiloxane. Due to the highly diphilic nature of these compounds, they readily concentrate at the oil/water interface in aqueous emulsions encapsulating oil droplets. During the subsequent condensation, the organosilicon precursor is consumed for hexane encapsulation (yielding hollow microcapsules) followed by the formation of a continuous condensed phase. Concurrently, methyl groups ensure the hydrophobicity of the resulting materials, which eliminates the need of using additional reagents for their hydrophobization.
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Affiliation(s)
- Kirill Borisov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia; (K.B.)
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
| | - Alexandra Kalinina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia; (K.B.)
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
| | - Aleksandra Bystrova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia; (K.B.)
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
| | - Aziz Muzafarov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia; (K.B.)
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 117393 Moscow, Russia
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Zheng S, Jiang L, Chang F, Zhang C, Ma N, Liu X. Mechanically Strong and Thermally Stable Chemical Cross-Linked Polyimide Aerogels for Thermal Insulator. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50129-50141. [PMID: 36308398 DOI: 10.1021/acsami.2c14007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
High-performance thermal insulating materials are highly desirable in several fields, especially for thermal insulation of buildings to reduce energy consumption. Owing to the remarkable thermal stability, high porosity, low density, and outstanding mechanical features, polyimide (PI) aerogels have attracted great attention. In this work, chemical cross-linked PI (CCPI) aerogels were fabricated via freeze-drying and thermal imidization, which possess outstanding mechanical properties, good thermal stability, and excellent thermal insulation characteristics. The chemically cross-linked structure can effectively inhibit shrinkage, while retaining the structural integrity, resulting in the lower density and lower shrinkage of the materials. In this paper, completely imidized and highly cross-linked polyimide aerogels were synthesized by using p-phenylenediamine (PDA), 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA), and the cross-linker 2,3,6,7,14,15-hexaaminotriptycene (HMT). The CCPI aerogels with excellent properties, such as covalently cross-linked chemical structure, low density (0.069 g/cm3), low volume shrinkage (10%), high decomposition temperature (Td5% = 587 °C), and low thermal conductivity (25 mW m-1K-1) are in high demand in the field of thermal insulation. This work furnishes a new method for the development of polymer-based thermal insulation materials for various prospective applications.
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Affiliation(s)
- Shuai Zheng
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Lei Jiang
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Fan Chang
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Changqi Zhang
- Institute of System Engineering, Beijing, China100010
| | - Ning Ma
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
| | - Xueqiang Liu
- Institute of System Engineering, Beijing, China100010
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Characterization and functionality of nanocomposite mats containing polyester, seashell, and silica aerogel using an electrospinning fabrication approach. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04131-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kudla R, Gutmann JS, Tsarkova LA. Tensiometry as a Simple Analytical Method for Quantification of Solubility and Release of Aroma Molecules in Aqueous Media. Molecules 2021; 26:7655. [PMID: 34946742 PMCID: PMC8707197 DOI: 10.3390/molecules26247655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
Dynamic tensiometry is shown to be a high-potential analytical tool in assessing physico-chemical characteristics of fragrance molecules, such as solubility limit, volatility as well as much rarely assessed interfacial activity of these amphiphilic molecules. Surface tension of aqueous solutions of selected essential oils has been measured as a function of time and fragrance concentration using maximum bubble pressure method. The effect of the temperature and saline solution on the rate of dissolution in water was assessed. Dynamic surface tension turned to be sensitive to the composition of fragrances, as demonstrated on examples of natural and synthetic mixtures. Furthermore, presented work reveals the possibility of maximum bubble pressure tensiometry method to quantify the amount of fragrance compositions in flavored salts, including the artificially aged carrier samples. Suggested here analytical approach can be used for the detection of the purity of essential oils, for the optimization of compositions and of the manufacturing processes of fragrances-containing products, as well as for the assessment of the release/evaporation of fragrances from carrier systems.
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Affiliation(s)
- Ruth Kudla
- Germain Textile Research Center North-West (DTNW), 47798 Krefeld, Germany; (R.K.); (J.S.G.)
| | - Jochen S. Gutmann
- Germain Textile Research Center North-West (DTNW), 47798 Krefeld, Germany; (R.K.); (J.S.G.)
- Physical Chemistry, University Duisburg-Essen, 47057 Duisburg, Germany
- Center for Nanointegration Duisburg-Essen (CENIDE), 45141 Essen, Germany
| | - Larisa A. Tsarkova
- Germain Textile Research Center North-West (DTNW), 47798 Krefeld, Germany; (R.K.); (J.S.G.)
- Physical Chemistry, University Duisburg-Essen, 47057 Duisburg, Germany
- Department of Chemistry, Moscow State University, 119991 Moscow, Russia
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Interaction of liposomes with silica nanocapsules: from lipid bilayer coating to multi-liposomal composites. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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