Study On Physical Properties and Formula of Open Cell Rigid Polyurethane Foam

• Main Authors: Yuan-Jan Du, 都源展
• Other Authors: Wei-Han Tao
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/30025189964856090116

碩士 === 中國文化大學 === 材料科學與製造研究所 === 87 === The open cell rigid polyurethane (PU) foam for vacuum insulation panel which have high thermal resistance and without any CFCs or HCFCs blowing agent have been studied in this research. The objectives were to find the optimization composition of open cell rigid polyurethane raw material and the foam physical properties. The effect factors of composition and properties include the ratio of isocynate and polyether; stirring speed, mixing temperature and additives. The solid fraction was found to increase as the mixing temperature increasing. The ratio of isocynate and polyether between 1.1 and 1.2, the solid fraction was less then other ratios. In this research, the ratio of open cell was found almost 100%, however, there had non-uniformity cell size, over reaction those problem.