Effects of a composite flame retardant system on the flame retardancy and mechanical performance of epoxy resin adhesive
Abstract
Abstract A flame‐retarded epoxy resin (ER) adhesive with strong flame retardancy and adhesion performance was prepared. The coated ammonium polyphosphate (MFAPP), melamine (MEL), and organic montmorillonite (OMMT) were mixed to prepare a composite flame retardant. It was subsequently blended with a toughened ER thoroughly and then the mixture was cured with polyamide. The resultant ER adhesive thermosets achieved UL‐94 V‐0 rating during vertical burning test, and the limiting oxygen index value was as high as 31.6%. The shear strength of the ER adhesive was 27.9 MPa when 25 wt% MFAPP/MEL/OMMT was introduced. Compared with the pure adhesive, the flame retardant epoxy adhesive maintained outstanding adhesion performance because of the good compatibility between the composite flame retardant additives and the toughened ER adhesive. Cone calorimetry tests indicated that the release of heat and smoke were obviously declined with the incorporation of the composite flame retardant system in comparison to pure ER adhesive thermoset. The investigation of flame retardant mechanism revealed that the composite MFAPP/MEL/OMMT flame retardant system stimulated the generation of highly expanded, integral, and strong char layer and the formed char layer exerted superior insulation effect during combusiton. The present work provided an alternative approach to prepare flame retardant ER adhesive with themore »
- Authors:
-
- Key Lab of Bio‐based Material Science and Technology, Ministry of Education Northeast Forestry University Harbin People's Republic of China, Institute of Petrochemistry Heilongjiang Academy of Sciences Harbin People's Republic of China
- Key Lab of Bio‐based Material Science and Technology, Ministry of Education Northeast Forestry University Harbin People's Republic of China, Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin People's Republic of China
- Macromolecules Innovation Institute Virginia Tech Blacksburg Virginia USA
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin People's Republic of China
- Institute of Petrochemistry Heilongjiang Academy of Sciences Harbin People's Republic of China
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1869025
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Journal of Vinyl & Additive Technology
- Additional Journal Information:
- Journal Name: Journal of Vinyl & Additive Technology Journal Volume: 28 Journal Issue: 4; Journal ID: ISSN 1083-5601
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Li, Sheng, Wang, Xiaohui, Chen, Tianran, Xu, Miaojun, Liu, Lubin, Gao, Suliang, Wei, Yunzhao, and Li, Bin. Effects of a composite flame retardant system on the flame retardancy and mechanical performance of epoxy resin adhesive. United States: N. p., 2022.
Web. doi:10.1002/vnl.21921.
Li, Sheng, Wang, Xiaohui, Chen, Tianran, Xu, Miaojun, Liu, Lubin, Gao, Suliang, Wei, Yunzhao, & Li, Bin. Effects of a composite flame retardant system on the flame retardancy and mechanical performance of epoxy resin adhesive. United States. https://doi.org/10.1002/vnl.21921
Li, Sheng, Wang, Xiaohui, Chen, Tianran, Xu, Miaojun, Liu, Lubin, Gao, Suliang, Wei, Yunzhao, and Li, Bin. Fri .
"Effects of a composite flame retardant system on the flame retardancy and mechanical performance of epoxy resin adhesive". United States. https://doi.org/10.1002/vnl.21921.
@article{osti_1869025,
title = {Effects of a composite flame retardant system on the flame retardancy and mechanical performance of epoxy resin adhesive},
author = {Li, Sheng and Wang, Xiaohui and Chen, Tianran and Xu, Miaojun and Liu, Lubin and Gao, Suliang and Wei, Yunzhao and Li, Bin},
abstractNote = {Abstract A flame‐retarded epoxy resin (ER) adhesive with strong flame retardancy and adhesion performance was prepared. The coated ammonium polyphosphate (MFAPP), melamine (MEL), and organic montmorillonite (OMMT) were mixed to prepare a composite flame retardant. It was subsequently blended with a toughened ER thoroughly and then the mixture was cured with polyamide. The resultant ER adhesive thermosets achieved UL‐94 V‐0 rating during vertical burning test, and the limiting oxygen index value was as high as 31.6%. The shear strength of the ER adhesive was 27.9 MPa when 25 wt% MFAPP/MEL/OMMT was introduced. Compared with the pure adhesive, the flame retardant epoxy adhesive maintained outstanding adhesion performance because of the good compatibility between the composite flame retardant additives and the toughened ER adhesive. Cone calorimetry tests indicated that the release of heat and smoke were obviously declined with the incorporation of the composite flame retardant system in comparison to pure ER adhesive thermoset. The investigation of flame retardant mechanism revealed that the composite MFAPP/MEL/OMMT flame retardant system stimulated the generation of highly expanded, integral, and strong char layer and the formed char layer exerted superior insulation effect during combusiton. The present work provided an alternative approach to prepare flame retardant ER adhesive with the similar excellent adhesive performance.},
doi = {10.1002/vnl.21921},
journal = {Journal of Vinyl & Additive Technology},
number = 4,
volume = 28,
place = {United States},
year = {2022},
month = {5}
}
https://doi.org/10.1002/vnl.21921
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