| dc.description.abstract | Preparation of polyurethane composite with rice husk filler as heat insulation
material has been done. Polyurethanes are used is a synthesis of polypropylene
glycol as a source of polyols and toluene diisocyanate as isocyanate with a
comparison between polypropylene glycol and toluene diisocyanate is 1: 2. Rice
husks used varied with variations from 0% to 30%. Characterisation of polyurethane
foam covers the determination of functional groups, density, thermal conductivity,
surface observation using Scanning Electron Microscopy (SEM) and thermal
resistance using Thermogravimetry Analysis (TGA). With the addition of rice husk at
10% showed an increase in the mechanical properties of the polyurethane foam
increased modulus value of 0424 MPa and a .fracture into the modulus of elasticity
becomes 11.586 MPa. From the surface of the test also showed that the addition of
rice husk to produce polyurethane foams with pore sizes smaller and more evenly
spread of pores. Likewise with thermal resilience with residual 26.83%. | en_US |
