مشروع البحث: MECHANICAL, THERMAL, AND FLAMMABILITY PROPERTIES OF RIGID POLYURETHANE FOAM-FILLED GRAPHENE/ALUMINIUM HYDROXIDE FLAME RETARDANT
تحميل...
المساهمين
الممولين
رقم التعريف
1282
الباحث
عائشة الهادي علي ابوسنينه
الوصف
The incorporation of ATH enhanced the
compressive strength, thermal stability, and flame-retardant performance, with 30 phr
ATH yielding a balanced compressive strength of 5.45 kPa, a maximum degradation
temperature (Tmax) of 306 °C, and superior flammability properties (V-0 rating in the
UL-94 V test and a LOI of 20%). Incorporating 1 pphp of SIL has significantly
improved the cell structure, resulting in an 80% enhancement in compressive strength
for ATH-filled RPUF. The silicon surfactant also improved the dispersion and close
cell structure of GNP-filled RPUF and hybrid RPUF samples. Furthermore, the
introduction of GNP improved both the compression strength and thermal stability of
RPUF, with 2.5 phr GNP being identified as the optimal content. Hybrid RPUF
samples containing GNP displayed LOI values between 21% and 23%, with 2.5 phr
and 3.0 phr GNP passing the UL-94 test with a V-0 rating. These hybrid composites
exhibited substantial improvements in thermal stability, achieving Tmax values ranging
from 538 °C to 592 °C. Overall, the present study demonstrated that the synergistic
use of ATH, SIL, and GNP in RPUF produces hybrid RPUF with enhanced
mechanical, thermal, and flame-retardant properties.
الكلمات الدالة
POLYURETHANE FOAM-FILLED GRAPHENE/ALUMINIUM