Abstract
The flammability and droplet properties of thermoplastic polyurethane (TPU) have limited its wide application in many fields. In this article, isopropyl tris(dioctylphosphoryloxy) titanate was selected as synergism and compatilizer with oyster shell powder as flame retardant in TPU composites. And the influence of isopropyl tris(dioctylphosphoryloxy) titanate for flame-retardant TPU composites has been intensively investigated using the smoke density test, the cone calorimeter test, and the thermogravimetric analysis/infrared spectrometry, respectively. The test results show that isopropyl tris(dioctylphosphoryloxy) titanate can reduce the smoke production and heat release. And the total smoke production was reduced by 32% when the mass fraction of isopropyl tris(dioctylphosphoryloxy) titanate was 0.1%. The above results indicate that isopropyl tris(dioctylphosphoryloxy) titanate has a good application prospect in reducing the risk of TPU combustion.
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