Estudo do Uso de Pet na Produção de Poliuretanos

Abstract

The use of micronized PET as an organic filler in flexible polyurethane foams has both an economic and an ecological appeal, providing a value-added destination for recycled PET. Abstract : The production of flexible polyurethane foams uses 98% commodity products and 2% specialty chemicals. As a consequence, commodities represent more than 90% of the raw material costs. Historically, the industry has always procured alternatives to replace them, at least partially. Therefore, for decades, different mineral fillers were used to replace commodities, but these were prohibited by the 2011 ABNT standardization of mattresses that stipulated an ash content equal to zero. The use of micronized recycled P oly E thylene T erephthalate (PET) as an organic filler is technically feasible up to at least 21.9%, representing a cost reduction of 5 to 10% per foam block produced, in addition to the ecological appeal of offering a more noble destination for recycled material.