Abstract
Ammonium polyphosphate (APP) was respectively microencapsulated with polysiloxane (Si) and polyborosiloxane (BSi), and then were introduced into polylactic acid (PLA) to synchronously improve the flame retardancy, water resistance and mechanical properties of PLA composite. Fourier transform infrared (FTIR)/energy dispersive spectrometer (EDS) analysis and scanning electron microscopy (SEM) observation confirmed that the APP was successfully microencapsulated with Si and BSi, respectively. The flammability evaluation for the PLA/5%BSi-APP samples by limit oxygen index (LOI), UL-94 vertical burning test and cone calorimeter test (CONE) revealed the LOI value achieved to 26.7%, UL-94 grade reached up to V-0, and the peak heat release rate (HRR) was decreased significantly. The microencapsulation of APP also improved the compatibility of APP with PLA, resulting in better mechanical properties than control APP contained composites under the same loading. The water resistance of PLA composite was also significantly improved by the introduction of microencapsulated APP.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
