The Flameretardancy Study of The Cardboard Bed Made from Corrugated Cardboard

摘要

Recently corrugated cardboard is utilized for not only packing materials but also furniture and beds at shelters in Japan. The reason why the cardboard has the characteristics of lightness, high strength, cheapness and recycle ability. Therefore, there is the strong needs to add flameretardancy for cardboard beds in medical facilities for prevention of second disaster. The purpose on this study is to add flameretardancy to the cardboards with keeping the recycle ability. In this paper, the cardboard of combusting behavior was measured by using a calorimeter under the UL-94 standard. So far we have used 6 kinds of flameretardant include 3 kinds of commercial flameretardant. As a result ammonium sulfate has given superior flameretardancy to cardboards. However we considered that it has no practical use, because flameretardancy of cardboards must be safety from chemical toxicity. Therefore we selected 2 kinds of flameretardant. As a result a flameretardant which contain phosphorus and nitrogen gave great flameretardancy to cardboards with small quantity.