期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 243, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2020.118230
关键词
Laminated glass; Polymeric interlayer; Glass transition temperature; Tensile test; Ageing test
资金
- CRISTEC
- CDTI funds [IDI20160588]
- Catalan Government [2017 SGR 1537]
- ICREA
- University of Lleida
- Ministerio de Economia y Competitividad de Espana [FJCI-2015-25741]
Laminated glass is obtained by bonding two or more glass layers with a polymeric interlayer. The coupling between glass layers depends on the shear stiffness of the interlayer. The mechanical and optical properties of the interlayer may be affected by weathering factors. Since interlayer materials are vis-coelastic, the strain rate may also affect its stiffness and ultimate strength. In this paper, tensile tests are conducted on seven different polymeric films (PVB BG-R20, PVB DG-41, PVB ES, SentryGlas, EVASAFE, EVALAM 80, and TPU) at three different strain rates. The mechanical and optical properties of unaged specimens are compared with specimens exposed to thermal cycles, high temperatures, and moisture. The unaged specimens of PVB DG-41, PVB ES, and SentryGlas had the highest stiffness, EVALAM 80 and EVASAFE had the highest ductility, PVB and SentryGlas had the highest tensile strength, and EVALAM 80, EVASAFE, and TPU were less affected by ageing factors and strain rate. (C) 2020 Elsevier Ltd. All rights reserved.
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