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Application of Thermogravimetric-Fourier Transform Infrared (TG-FTIR) Coupling Technology in the Study of PP PyrolysisTianjin Port East Technology Co., Ltd. Applied Analysis DepartmentAbstractPP (polypropylene) is non-toxic and odorless, with low density. Its strength, stiffness, hardness, and heat resistance are all superior to those of low-density polyethylene, and it can be used at temperatures around 100°C. It possesses good dielectric properties and high-frequency insulation, and is not affected by humidity; however, it becomes brittle at low temperatures, is not wear-resistant, an...