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Optimization of reaction conditions for polyurethane foam synthesis with liquefied corn stalk by response surface methodology
Author(s) -
Wang Tipeng,
Yin Jun,
Zheng Zongming,
Mao Zhihuai
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36917
Subject(s) - polyurethane , response surface methodology , ultimate tensile strength , pulmonary surfactant , materials science , stalk , central composite design , composite number , composite material , chemical engineering , chemistry , chromatography , horticulture , engineering , biology
Optimization of copolymerization conditions for biodegradable polyurethane foam with non‐pretreated liquefied corn stalk and polymethylene polyphenylisocyanate was conducted using a quadratic regression rotational combinational design of response surface methodology. A five‐level four‐factor central composite design was employed to determine the maximum tensile strength at optimum levels for [NCO]/[OH] ratio, blowing agent (water), mass ratio of triethylamine (TL)/dibutyltin dilaurate (DD), and surfactant (silicone). The analysis of variance (ANOVA) of the quadratic orthogonal regression model revealed that the fit of the model was good. The model was also verified by experimentation. The maximum tensile strength of 1.64 MPa was obtained at the optimal conditions: [NCO]/[OH] ratio 0.7, blowing agent concentration 4.7 wt %, surfactant concentration 1.27 wt %, and mass ratio of TL/DD 1: 1. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012