Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 159, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2022.107034
Keywords
Foams; Permeability; Fire retardancy; Mechanical properties
Funding
- National Natural Science Foundation of China [51874266, 51973203]
- Fundamental Research Funds for the Central Universities [WK2320000054, WK2320000057]
Ask authors/readers for more resources
In this paper, flexible polyurethane (PU) was successfully prepared by introducing diphenylphosphinyl chloride and 3-aminopropyltriethoxysilane (KH550) into castor oil. The modified PU showed excellent flame-retardant and smoke-suppressing effects, and it was able to rapidly absorb organic solvents. The modified foam also met certain mechanical properties. This work broadens the thinking for the preparation of high-performance flexible PU materials with green intrinsic fire-retardancy.
Bio-based flexible polyurethane (PU) with fire-retardancy can not only relieve the pressure of limited fossil resources, but also effectively solve the serious problem derived from fire accident. Herein, diphenylphosphinyl chloride and 3-aminopropyltriethoxysilane (KH550) were introduced into the castor oil molecular chain, and modified castor oil (CPK) was successfully synthesized. By using CPK to replace part of the original polyol, we had prepared flexible PU: The PU/CPK 15.0 mol% sample successfully passed the vertical combustion test and achieved the eminent flame-retardant and smoke-suppressing effect. In the rapid adsorption test of organic solvents, both toluene and n-hexane can be quickly and completely absorbed by the modified foam sample, while the unmodified foam was not good as that. Besides, the modified foam also met certain mechanical properties. This work broadens the thinking for the preparation of high-performance flexible PU materials with green intrinsic fire-retardancy.
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