| Summary: | 碩士 === 中國文化大學 === 化學工程與材料工程學系奈米材料碩士班 === 105 === People are conscious about the environment protection nowadays. Halogen-free flame retardants received increasing attention in their developments. Once the effective halogen free flame retardants become available, the air pollution problems caused by the fire will be reduced. These products will lead into new business with competitive advantages.
In this study, physical mixing was carried out using a Brabender, and Thermoplastic Polyurethanes (TPU) were used as substrates to add Melamine Polyphosphate (MPP) at different concentrations (weight%). Composite flame retardant, made of TPU / MPP flame retardant composite materials.
According to studies the content ratio of the thermoplastic polyurethane (TPU) / melamine polyphosphate (MPP). Flame retardant tests, such as Limiting oxygen index (LOI), Horizontal Vertical Flame Chamber (UL-94)；Thermal Property , such as Thermo Gravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Melt Flow Index (MI), Vicat Softening Temperature (VST)；Morphological Analysis , such as Raman Spectrometer (Raman), Field Emission Scanning Electron Microscope (FESEM), Fourier Transform Infrared Spectroscopy (FTIR)；Mechanical Property, such as Taber Abrasion Tester (Wear), Pendulum Impact System (Impact), Tensile Testing Machine(Tensile), Shore A Hardness Test (Hardness), Density.
In this study the flame retardant system containing Melamine Polyphosphate compounds at 50 weight% of TPU material passed the flame standard (UL94-V0 test) (LOI 45) without dripping of the molten material. And its Mechanical Property of the test, its toughness decreased, rigidity and brittleness enhance the wear resistance decreased, the hardness increased.
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