Journal
ACS OMEGA
Volume 6, Issue 1, Pages 666-674Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.0c05208
Keywords
-
Categories
Funding
- Natural Science Foundation of China [52063005]
- Guizhou Youth Science and Technology Talents Project [KY2019085]
- Talent Introduction Project of Guiyang University by Guiyang City Financial Support Guiyang University [2019039510822]
- Discipline and Master's Site Construction Project of Guiyang University by Guiyang City Financial Support Guiyang University [HC-2020]
- Innovation Group Project of Guizhou Provincial Department of Education [2020024]
Ask authors/readers for more resources
The synergistic effects of SiO2 nanoparticles and DiDOPO can significantly enhance the flame-retardant performance of EP, while also improving its thermal stability and mechanical properties.
Flame retardancy of epoxy resin (EP) plays a vital role in its applications. When inorganic nanomaterials form inorganic/organic nanocomposites, they exhibit special flame-retardant effects. In this study, EP nanocomposites were prepared by the incorporation of SiO2 nanoparticles and phenethyl-bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative (DiDOPO), and the synergistic effects of SiO2 nanoparticles and DiDOPO on the flame-retardant performance of EP were discussed. Results indicated that the introduction of only 15 wt % SiO2 and 5 wt % DiDOPO in EP leads to the increase in the limiting oxygen index from 21.8 to 30.2%, and the nanocomposites achieve the UL-94 V-0 rating. Thermogravimetric analysis revealed that char yield increases with the increase in the SiO2 content of the nanocomposites and that an increased amount of thermally stable carbonaceous char is formed. SiO2 nanoparticles can improve the thermal stability and mechanical performance of EP; hence, the nanoparticles can serve as an efficient adjuvant for the DiDOPO/EP flame-retardant system.
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