關鍵字查詢 | 類別:期刊論文 | | 關鍵字:The thermal aging of filled polyurethane

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1 80/1 化材系 董崇民 教授 期刊論文 發佈 The thermal aging of filled polyurethane , [80-1] :The thermal aging of filled polyurethane期刊論文The thermal aging of filled polyurethaneDon, Trong-ming; Chiu, Wen-yen; Hsieh, K. H.淡江大學化學工程與材料工程學系John Wiley & SonsJournal of applied polymer science 43(12), pp.2193-2199Thermal aging and strain endurance experiments on a filled rubber were performed at several temperatures. The rubber was polyurethane (PU) made from hydroxyl-terminated polybutadiene (HTPB) with 4,4′-diphenyl methane disocyanate (MDI). The filler was sodium chloride. The mechanical properties, glass transition temperature, dynamic viscoelasticity, and chemical structures were investigated for filled and unfilled PU under an aging period at 60 and 80°C and 50% relative humidity. We found that at 60°C the chemical structures of the filled and unfilled rubbers had no changes in 30 days during aging. But moisture had some effects on the filled PU and changed its mechanical properties. At 80°C, the chemical structures of the filled and unfilled PU had changed due to the thermal o
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