Characterization on insulation performance, poststability, and foaming process of rigid polyurethane sandwich panel for cold storage warehouse

Xu, Jie; Wu, Tao; Sun, Wei; Peng, Chuang

Abstract

Polyurethane (PU) is a commonly used insulation material for cold storage warehouses. The insulation performance of PU sandwich panels made from blended blowing agents were re-assessed by k-factor measurements and insulation thickness calculation based on cold warehouse design standard, which has proved the significant impact of blowing agent difference on energy saving. The foam post-stability was also evaluated by mathematic profiling. The developed 3D paraboloid model based on gridding measurements has provided scientific method for panel shrinkage evaluation. Cell microstructure characterization and post-growth angle coefficients calculation were further performed for better understanding the shrinkage problem at microscopic level. The foaming process model of continuous panel production was developed based on FOAMAT characterization which has provided theoretical solution to panel processing.

Citation

Xu, J., Wu, T., Sun, W., & Peng, C. (2017). Characterization on insulation performance, poststability, and foaming process of rigid polyurethane sandwich panel for cold storage warehouse. Journal of Materials in Civil Engineering, 29(9), https://doi.org/10.1061/%28ASCE%29MT.1943-5533.0001984

• Journal Article Type: Article
• Acceptance Date: Feb 14, 2017
• Online Publication Date: May 19, 2017
• Publication Date: Sep 30, 2017
• Deposit Date: Mar 7, 2017
• Publicly Available Date: May 19, 2017
• Journal: Journal of Materials in Civil Engineering
• Print ISSN: 0899-1561
• Electronic ISSN: 1943-5533
• Publisher: American Society of Civil Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 29
• Issue: 9
• DOI: https://doi.org/10.1061/%28ASCE%29MT.1943-5533.0001984
• Keywords: Polyurethane, cold warehouse, sandwich panel, insulation, shrinkage, microstructure
• Public URL: https://nottingham-repository.worktribe.com/output/885840
• Publisher URL: http://ascelibrary.org/doi/10.1061/%28ASCE%29MT.1943-5533.0001984
• Contract Date: Mar 7, 2017