dibutyltin mono(2-ethylhexyl) maleate: enhancing heat stability in pvc floor tiles introduction polyvinyl chloride (pvc) floor tiles are a widely used flooring material due to their durability, water resistance, ease of maintenance, and cost-effectiveness. however, pvc is inherently susceptible to thermal degradation during processing and in service. this degradation leads to discoloration, embrittlement, and loss of...