Preparation and characteristics of sepiolite-waterborne polyurethane composites
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Tong Xu
,
Yi Zhong
Abstract
A kind of organic/inorganic composite material composed of waterborne polyurethane and sepiolite was prepared in this work. Sepiolite was organically modified by three kinds of silane coupling agents, and then compounded with waterborne polyurethane through layer-by-layer method in order to prepare composite materials. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) show the crystal and chemistry structure of sepiolite samples, and confirmed the preparation of organic sepiolite. Scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS) showed the surface microstructure and elemental content of sepiolite and organic sepiolite, and was consistent with the XRD results. Transmission electron microscope (TEM) examination of waterborne polyurethane composites surfaces showed that sepiolite particles were regularly dispersed in the waterborne polyurethane matrix. Thermal resistance of waterborne polyurethane composites was determined by thermogravimetry analyzer (TG) and derivative thermogravimetry analyzer (DTG), differential scanning calorimetry (DSC), gas chromatography (GC), and mass chromatography (MS). Mechanical behavior was examined by tensile strength tester, showed higher break strength than that of the control waterborne polyurethane. Therefore, organically modified sepiolite was considered to be a kind of wonderful inorganic material that could be used to improve the thermal stability and mechanical property of polymer.
Funding source: The National Key R & D Program of China
Award Identifier / Grant number: 2018YFC1801500
Funding source: The Fundamental Research Funds for the Central Universities
Award Identifier / Grant number: 2232020G-04
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The present work is supported financially by the Fundamental Research Funds for the National Key R & D Program of China (no. 2018YFC1801500) and the Central Universities (no. 2232020G-04).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Material Properties
- Study of effect of wood-flour content on mechanical, thermal, rheological properties and thermoformability of wood-polypropylene composites
- Ramie fiber reinforced composites with flame retardant structure design: flammability, smoke suppression, and mechanical properties
- Mesopore silica effect on chemical, thermal and tribological properties of polyimide composites
- Microstructure and improvement in corrosion resistance of HAP and PVA/HAP
- Mechanical and antibacterial properties of ZnO/chitosan bio-composite films
- Enhancement of thermoelectric and mechanical properties of thermoplastic vulcanizates (TPVs) with hydroxylated graphene by dynamic vulcanization
- Preparation and Assembly
- Maghnite: an innovative inorganic reinforcement utilized in the synthesis of polyamide 12 nanocomposites with optimized thermal and mechanical properties
- Preparation and characteristics of sepiolite-waterborne polyurethane composites
- Engineering and Processing
- A method for the optimal design of low-density polymer foam core sandwiches using FEA and multiobjective optimization of design variables
- Annual Reviewer Acknowledgement
- Reviewer acknowledgement Journal of Polymer Engineering volume 41 (2021)
Articles in the same Issue
- Frontmatter
- Material Properties
- Study of effect of wood-flour content on mechanical, thermal, rheological properties and thermoformability of wood-polypropylene composites
- Ramie fiber reinforced composites with flame retardant structure design: flammability, smoke suppression, and mechanical properties
- Mesopore silica effect on chemical, thermal and tribological properties of polyimide composites
- Microstructure and improvement in corrosion resistance of HAP and PVA/HAP
- Mechanical and antibacterial properties of ZnO/chitosan bio-composite films
- Enhancement of thermoelectric and mechanical properties of thermoplastic vulcanizates (TPVs) with hydroxylated graphene by dynamic vulcanization
- Preparation and Assembly
- Maghnite: an innovative inorganic reinforcement utilized in the synthesis of polyamide 12 nanocomposites with optimized thermal and mechanical properties
- Preparation and characteristics of sepiolite-waterborne polyurethane composites
- Engineering and Processing
- A method for the optimal design of low-density polymer foam core sandwiches using FEA and multiobjective optimization of design variables
- Annual Reviewer Acknowledgement
- Reviewer acknowledgement Journal of Polymer Engineering volume 41 (2021)
