EFFECT OF INORGANIC COMPONENTS ON PROPERTIES OFCERAMIZABLE POLYURETHANE FOAM COMPOSITES

Abstract

Abstract: Ceramizable polyurethane foam composites were prepared by using polyether polyols, polyisocyanates, foaming agents, and ceratable inorganic fillers. The effects of inorganic components such as glass frit, vermiculite powder, expandable graphite and ammonium polyphosphate on the properties of ceramizable polyurethane foam composites were studied. The results show that with the increase of the amount of glass frit, the density and the thermal conductivity of foam composites increase, but the compressive strength. When the amount of vermiculite powder is less than 6, the shrinkage of the composites after high temperature treatment decreases with the increase of the amount of vermiculite powder. When the total amount of expandable graphite and ammonium polyphosphate with the rate of 1∶1 is 9 phr, the limited oxygen index is 33. Finally, the optimized proportion of all components was determined by experiment study.

Key words: polyurethane foam, inorganic filler, ceramizable, composite

CLC Number:

TB332

SHI Min-xian, HE Dong-pei, SHEN Yi-feng, YAO Ya-lin. EFFECT OF INORGANIC COMPONENTS ON PROPERTIES OFCERAMIZABLE POLYURETHANE FOAM COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2018, 0(9): 75-81.

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