Comparative investigation of the influence of kaolin and dolomite on the properties of polyurethane foam

This work investigates the influence of kaolin and dolomite on properties polyurethane foam. The selected fillers were pulverized sieved to obtained < 90 ?m that used as reinforcements in matrix a randomly dispersed mode. constituents mixed same ratio while introduced via one-shot system approach predetermined proportions 3–7 wt.%. was carried out identify optimum be utilized production rigid foams given effect physical, mechanical, chemical FTIR, XRF, SEM mechanical property tests filled presence foam showed rupture structure with cells having similar arrangements. addition Kaolin degrades sulfonic acid groups promoted appearance Si–O stretching vibration band. density, hardness, flexural compressive strengths enhanced particles.