Studies on Thermal and Morphological Properties of Polyurethane Foam Filled Polypropylene/Poly(lactic acid) Blends

Authors : Naile ANGIN, Sena ÇAYLAK, Murat ERTAŞ

Pages : 47-56

Doi:10.38088/jise.654790

View : 17 | Download : 9

Publication Date : 2019-12-31

Article Type : Research Paper

Abstract :Polyurethane foams are used in many different applications, such as insulation and coating materials, packaging, furniture and so on.  It has very low weight, low cost and thermal conductivity hereby frequently preferred by architectural and construction industry. On the other hand, these large-scale uses bring with waste problem after applications. In this study, the effect of polyurethane foam waste insert ignore into journalissuearticles values(PUw); on the thermal and morphological properties of polypropylene insert ignore into journalissuearticles values(PP);/ polyinsert ignore into journalissuearticles values(lactic acid); insert ignore into journalissuearticles values(PLA); composites plasticized with polyethylene glycol insert ignore into journalissuearticles values(PEG 400); was investigated. PUw filled PP/PLA composites were prepared using melt blending followed by compression molding. Thermal and morphological properties of PUw filled PP/PLA composites were characterized by thermogravimetric analysis insert ignore into journalissuearticles values(TGA);, differential scanning calorimetry insert ignore into journalissuearticles values(DSC);, thermal conductivity analyzer and scanning electron microscopy insert ignore into journalissuearticles values(SEM);. The results shown that the thermal conductivity of the composites improved significantly with addition of PUw, while glass transition temperature insert ignore into journalissuearticles values(T g );, the melting temperature insert ignore into journalissuearticles values(T m ); and melting enthalpy insert ignore into journalissuearticles values(ΔH m ); values of the composites decreased. Based on finding, the PUw could be used as filler in PP/PLA composites for insulation and energy efficiency.
Keywords : Polyurethane foam, Polylactic acid, Polypropylene, Thermal properties, Thermal conductivity