| 摘要 |
A foamed heat insulating material made of paper, starch and a polymer resin, specifically, polypropylene, and methods of manufacturing the same. The method includes providing paper powder, starch, and polypropylene as a major component of the foamed insulating material by setting a weight amount of the starch to be higher than that of the paper powder, setting a weight ratio of the polypropylene not greater than about 50 weight percent (%) of the major component, and the setting of a melt flow rate of the polypropylene to be between about 1 and about 15 g/10 min; and foaming the major component by adding water to the extruder. |
