Journal
COMPOSITES PART B-ENGINEERING
Volume 215, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2021.108785
Keywords
Polyurethane sponge; Flame retardant coating; Flame retardant property; Antimicrobial property; Compressible property
Funding
- Zhejiang Provincial Natural Science Foundation of China (ZJNSF) [LY18E030007]
- Fundamental Research Funds of Zhejiang Science Tech University [2019Q084]
- Key Research and Development Project of Zhejiang Province [2020C01143]
- Fashion Design Discipline of Zhejiang Sci-Tech University
- National Undergraduate Innovation and Entrepreneurship Training Program [202010338046]
- Zhejiang Provincial Undergraduate Science and Technology Innovation Program (Xinmiao Talents Program) [2020R406032]
- Australia Research Council Discovery Project [DP190102992, FT190100188]
Ask authors/readers for more resources
This study developed a novel composite coating for PU sponge, which can improve its flame retardant and antibacterial properties without compromising its elasticity and flexibility. The coated PU sponge showed a 32% reduction in peak heat release rate during combustion testing and demonstrated a killing rate of 99% against Staphylococcus aureus.
Polyurethane (PU) sponge has a wide range of applications in our daily life. Unfortunately, the PU sponge is highly flammable and becomes a breeding ground for bacteria, thereby threatening human health and life. To date, it remains a challenge to improve the flame retardant and antibacterial properties of PU sponge simultaneously without destroying its inherent elasticity and flexibility. Here we report a novel composite coating on the PU sponge using bioderived phytic acid and sodium lignosulfonate via a facile soaking method. Compared to the pristine sponge, the coated PU sponge can reach a 32% reduction in peak heat release rate during cone calorimeter test, and prevent melt dripping after being ignited by a butane torch and the flame can be selfextinguished after the torch is removed. The resultant composite coating also demonstrates a killing rate of 99% against Staphylococcus aureus. Meanwhile, the coated PU sponge can retain the inherent elasticity and flexibility even after 500 cycles of compression. Furthermore, the coating materials are easily recyclable, which provide a useful reference for multifunctional treatment of sponge and cyclic utilization of resources.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available