Effect of high molecular weight isocyanate contents on manufacturing polyurethane foams for improved sound absorption coefficient
作者: Giwook SungJung Hyeun Kim
作者单位: 1University of Seoul
刊名: Korean Journal of Chemical Engineering, 2017, Vol.34 (4), pp.1222-1228
来源数据库: Springer Journal
DOI: 10.1007/s11814-016-0361-6
关键词: Polyurethane FoamMultifunctional IsocyanateCell MorphologySound Absorption
英文摘要: Noises generated in automobile compartments can be controlled by utilizing sound absorption and insulation materials such as polyurethane foams. Polyurethane foams are synthesized by varying polymeric methylene diphenyl diisocyanate (MDI) content for exploring the effect of high functional isocyanate on cellular and acoustic properties. The use of polymeric MDI affects polyurethane matrix modulus and drainage flow rate of the foams, and it also has strong effects on cell structure and air flow resistance (AFR). The highest sound absorption coefficient is achieved at the optimum amount of the polymeric MDI. Therefore, the optimum amount of polymeric MDI content is recommended to achieve not only high sound absorption coefficient but also high transmission loss from the polyurethane foams.
原始语种摘要: Noises generated in automobile compartments can be controlled by utilizing sound absorption and insulation materials such as polyurethane foams. Polyurethane foams are synthesized by varying polymeric methylene diphenyl diisocyanate (MDI) content for exploring the effect of high functional isocyanate on cellular and acoustic properties. The use of polymeric MDI affects polyurethane matrix modulus and drainage flow rate of the foams, and it also has strong effects on cell structure and air flow resistance (AFR). The highest sound absorption coefficient is achieved at the optimum amount of the polymeric MDI. Therefore, the optimum amount of polymeric MDI content is recommended to achieve not only high sound absorption coefficient but also high transmission loss from the polyurethane foams.
全文获取路径: Springer  (合作)
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来源刊物:
影响因子:1.059 (2012)

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关键词翻译
关键词翻译
  • absorption 吸收
  • polyurethane 聚氨酯
  • polymeric 聚合的
  • isocyanate 异氰酸盐
  • coefficient 系数
  • sound 海峡
  • molecular 分子的
  • amount 总计
  • methylene 甲叉
  • manufacturing 制造