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Experiment‐design methods in innovative polymer material planning
Author(s) -
Debska B. J.,
Dobrowolski L.,
Debska B.
Publication year - 2018
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.46761
Subject(s) - epoxy , prepolymer , materials science , isocyanate , curing (chemistry) , composite material , polyurethane , polymer , composite number , material design
In the work, the design of experiments (DOE) method was used to obtain a modified epoxy resin of reduced fragility. As modifiers of commercial epoxy resin, urethane prepolymers with isocyanate terminal groups were used. Experimental points (samples of specified composition of resin prepolymer and a curing agent) were generated by the STATISTICA program module Design of Experiments using a central composition design. A study of the mechanical properties of modified resin samples was carried out for five intermediate values of input variables x 1 (resin/hardener ratio) and x 2 (modifier, wt %), designated for the normalized values 0, ± 1, and ±1.414. The STATISTICA algorithms analyzing the results of the practical implementation of the planned experiments allowed us to develop a model describing the dependence of the mechanical properties of composite resins on the composition and then to select the optimal compositions of epoxy resin for their practical applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46761.