writer：Tao Yu, Ding Ding, Cong Sheng, Tuerdi Tuerhongjiang, Yan Li
keywords：phosphorous-based flame retardant, poly(lactic acid)/jute composite, mechanical properties, flame retardancy
source：期刊
specific source：Science China Technological Science, 2017, 60(11): 1716-1723
Issue time：2017年

In this work, a phosphorous-based compound (DOPO-ICN) was obtained by a two-step process. 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) reacted with formaldehyde firstly, followed with reacting with 1,6-hexane diisocyanate (HDI). The chemical structure of DOPO-ICN was confirmed by Fourier transform infrared spectroscopy (FTIR) and 1H NMR. The influence of DOPO-ICN on the mechanical and flammability properties of jute/PLA composites was studied. Compared to DOPO, DOPO-ICN improved the tensile, flexural and impact strength of the flame retardant jute/PLA composites. Moreover, the flammability of jute/PLA composites with different DOPO and DOPO-MA loading was investigated by thermogravimetric analysis (TGA), UL 94 test and limiting oxygen index

(LOI) measurements. The results showed that DOPO-ICN imparted the flame retardancy to the jute/PLA composites.