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h. tanaka, y. sato, t. nakamura. thermal conductivity of polyurethane foams: effect of cell structure and gas filling. journal of cellular plastics, 2018, 54(3): 231¨C245.
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m. r. kamal, s. roy. foaming technology for polyurethanes: advances and challenges. polymer engineering & science, 2020, 60(4): 789¨C801.
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g. weise, c. piel, j. meissner. control of cell morphology in rigid polyurethane foams by modified isocyanates. cellular polymers, 2019, 38(2): 89¨C103.
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