Properties of water-blown rigid polyuret
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W. J. Seo; J. H. Park; Y. T. Sung; D. H. Hwang; W. N. Kim; H. S. Lee
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Article
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2004
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John Wiley and Sons
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English
β 214 KB
π 1 views
## Abstract Rigid polyurethane foams (PUFs) were prepared from polymeric 4,4βdiphenylmethane diisocyanate (PMDI; having functionality of 2.9), polyether polyols, silicone surfactant, amine catalysts, and distilled water. The effects of reactivity on the properties such as density, compressive and f