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Liu Z, Wang C, Lai Z, Guo Z, Chen L, Zhang K, Yi Y. Utilizing ANN for Predicting the Cauchy Stress and Lateral Stretch of Random Elastomeric Foams under Uniaxial Loading. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093474. [PMID: 37176356 PMCID: PMC10180385 DOI: 10.3390/ma16093474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
As a result of their cell structures, elastomeric foams exhibit high compressibility and are frequently used as buffer cushions in energy absorption. Foam pads between two surfaces typically withstand uniaxial loads. In this paper, we considered the effects of porosity and cell size on the mechanical behavior of random elastomeric foams, and proposed a constitutive model based on an artificial neural network (ANN). Uniform cell size distribution was used to represent monodisperse foam. The constitutive relationship between Cauchy stress and the four input variables of axial stretch λU, lateral stretch λL, porosity φ, and cell size θ was given by con-ANN. The mechanical responses of 500 different foam structures (20% < φ < 60%, 0.1 mm < θ < 0.5 mm) under compression and tension loads (0.4 < λU < 3) were simulated, and a dataset containing 100,000 samples was constructed. We also introduced a pre-ANN to predict lateral stretch to address the issue of missing lateral strain data in practical applications. By combining physical experience, we chose appropriate input forms and activation functions to improve ANN's extrapolation capability. The results showed that pre-ANN and con-ANN could provide reasonable predictions for λU outside the dataset. We can obtain accurate lateral stretch and axial stress predictions from two ANNs. The porosity affects the stress and λL, while the cell size only affects the stress during foam compression.
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Affiliation(s)
- Zhentao Liu
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Chaoyang Wang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
| | - Zhenyu Lai
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Zikang Guo
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Liang Chen
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Kai Zhang
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Yong Yi
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
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2
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Wang N, Feng L, Xu XD, Feng S. Dynamic Covalent Bond Cross-linked Luminescent Silicone Elastomer with Self-healing and Recyclable Property. Macromol Rapid Commun 2022; 43:e2100885. [PMID: 35112755 DOI: 10.1002/marc.202100885] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/24/2022] [Indexed: 11/10/2022]
Abstract
Two aldehyde-modified tetraphenylene derivatives with different functionality are synthesized and exhibit different fluorescence properties. By incorporating tetraphenylene derivatives into polydimethylsiloxane (PDMS) networks, two elastomers are prepared through dynamic covalent crosslinking. The elastomers show excellent fluorescence properties, mechanical properties, thermal stability as well as self-healing and recycle properties. At the same time, the mechanical properties of the elastomers are influenced by the functionality of the tetraphenylene derivatives and the molecular weight of the PDMS. The self-healing process take place quickly and the recycling process can be carried out by solution processing and hot pressing. It shows the similar tensile properties between the prisitine and healed samples. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ning Wang
- Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, Shandong Province, 250100, China
| | - Lei Feng
- Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, Shandong Province, 250100, China
| | - Xing-Dong Xu
- Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, Shandong Province, 250100, China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials of Ministry of Education, Shandong Key Laboratory of Advanced Silicone Materials and Technology, School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, Shandong Province, 250100, China
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Kong S, Wang R, Feng S, Wang D. Tannic Acid as a Natural Crosslinker for Catalyst-Free Silicone Elastomers From Hydrogen Bonding to Covalent Bonding. Front Chem 2021; 9:778896. [PMID: 34733824 PMCID: PMC8558560 DOI: 10.3389/fchem.2021.778896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/04/2021] [Indexed: 11/13/2022] Open
Abstract
The construction of silicone elastomers crosslinked by a natural crosslinker under a catalyst-free method is highly desirable. Herein we present catalyst-free silicone elastomers (SEs) by simply introducing tannic acid (TA) as a natural crosslinker when using poly (aminopropylmethylsiloxane-co-dimethylsiloxane) (PAPMS) as the base polymer. The crosslinked bonding of these SEs can be easily changed from hydrogen bonding to covalent bonding by altering the curing reaction from room temperature to heating condition. The formability and mechanical properties of the SEs can be tuned by altering various factors, including processing technique, the amount of TA and aminopropyl-terminated polydimethylsiloxane, the molecular weight and -NH2 content of PAPMS, and the amount of reinforcing filler. The hydrogen bonding was proved by the reversible crosslinking of the elastomers, which can be gradually dissolved in tetrahydrofuran and re-formed after removing the solvent. The covalent bonding was proved by a model reaction of catechol and n-decylamine and occurred through a combination of hydroxylamine reaction and Michael addition reaction. These elastomers exhibit good thermal stability and excellent hydrophobic property and can bond iron sheets to hold the weight of 500 g, indicating their promising as adhesives. These results reveal that TA as a natural product is a suitable “green” crosslinker for the construction of catalyst-free silicone elastomers by a simple crosslinking strategy. Under this strategy, TA and more natural polyphenols could be certainly utilized as crosslinkers to fabricate more organic elastomers by selecting amine-containing polymers and further explore their extensive applications in adhesives, sealants, insulators, sensors, and so forth.
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Affiliation(s)
- Sen Kong
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Rui Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Shengyu Feng
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China.,Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies and State Key Laboratory of Fluorinated Functional Membrane Materials, Zibo, China
| | - Dengxu Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China.,Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies and State Key Laboratory of Fluorinated Functional Membrane Materials, Zibo, China
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4
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Lu G, Yepremyan A, Godfrey S, Mohr C, Herrlein M, Brook MA. Aza‐Michael
silicone cure is accelerated by
β‐hydroxyalkyl
esters. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guanhua Lu
- Department of Chemistry and Chemical Biology McMaster University Hamilton Ontario Canada
| | - Akop Yepremyan
- Department of Chemistry and Chemical Biology McMaster University Hamilton Ontario Canada
| | - Simon Godfrey
- Basic and Long Term Research Wella Company Darmstadt Germany
| | - Corinne Mohr
- Basic and Long Term Research Wella Company Darmstadt Germany
| | | | - Michael A. Brook
- Department of Chemistry and Chemical Biology McMaster University Hamilton Ontario Canada
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Liu YQ, Yu WW, Jiang H, Shang GQ, Zeng SF, Wang ZW, Hu CY. Variation of baking oils and baking methods on altering the contents of cyclosiloxane in food simulants and cakes migrated from silicone rubber baking moulds. Food Packag Shelf Life 2020. [DOI: 10.1016/j.fpsl.2020.100505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Thermal degradation kinetics of functional polysiloxane with pendent γ-chloropropyl groups. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-019-03089-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Sample CS, Lee SH, Li S, Bates MW, Lensch V, Versaw BA, Bates CM, Hawker CJ. Metal-Free Room-Temperature Vulcanization of Silicones via Borane Hydrosilylation. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01585] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Caitlin S. Sample
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Sang-Ho Lee
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea
| | - Shaoguang Li
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Morgan W. Bates
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Valerie Lensch
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Brooke A. Versaw
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Christopher M. Bates
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Craig J. Hawker
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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Park C, Lee SW, Kim J, Song EH, Jung HD, Park JU, Kim HE, Kim S, Jang TS. Reduced fibrous capsule formation at nano-engineered silicone surfaces via tantalum ion implantation. Biomater Sci 2019; 7:2907-2919. [DOI: 10.1039/c9bm00427k] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nano-engineered surface of silicone implant improves the biocompatibility and suppresses the fibrous capsule formation which is the most common side effect of polymeric implants.
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Affiliation(s)
- Cheonil Park
- Department of Materials Science and Engineering
- Seoul National University
- Seoul
- Korea
| | - Si-Woo Lee
- Department of Plastic and Reconstructive Surgery
- Seoul National University College of Medicine
- Seoul
- Korea
| | - Jinyoung Kim
- Department of Materials Science and Engineering
- Seoul National University
- Seoul
- Korea
| | - Eun-Ho Song
- Department of Materials Science and Engineering
- Seoul National University
- Seoul
- Korea
| | - Hyun-Do Jung
- Research Institute of Advanced Manufacturing Technology
- Korea Institute of Industrial Technology
- Incheon
- Korea
| | - Ji-Ung Park
- Department of Plastic and Reconstructive Surgery
- Seoul National University Boramae Medical Center
- Seoul
- Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering
- Seoul National University
- Seoul
- Korea
| | - Sukwha Kim
- Department of Plastic and Reconstructive Surgery
- Seoul National University College of Medicine
- Seoul
- Korea
| | - Tae-Sik Jang
- Research Institute of Advanced Manufacturing Technology
- Korea Institute of Industrial Technology
- Incheon
- Korea
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9
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Cao J, Feng L, Feng S. Preparation of supramolecular silicone elastomersviahomo- and hetero-assembly. NEW J CHEM 2018. [DOI: 10.1039/c7nj04468b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular silicone elastomers were preparedviaself-assembly and they exhibit ultra-low temperature resistance and tunable mechanical properties.
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Affiliation(s)
- Jinfeng Cao
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Linglong Feng
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials & Key Laboratory of Colloid and Interface Chemistry (Shandong University)
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
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10
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Feng L, Li S, Feng S. Preparation and characterization of silicone rubber with high modulus via tension spring-type crosslinking. RSC Adv 2017. [DOI: 10.1039/c7ra00293a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
“Tension spring-type crosslinking” for improving the modulus of silicone rubber.
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Affiliation(s)
- Linglong Feng
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Shusheng Li
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
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