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Large scale preparation of melamine‐based superplasticizing admixtures. I. Process optimization
Author(s) -
Dairanieh I. S.,
AbsiHalabi M.,
Lahalih S.,
AlKhalid T.
Publication year - 1989
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.1989.070370816
Subject(s) - melamine , melamine resin , materials science , polymerization , process engineering , process (computing) , formaldehyde , chemical engineering , process optimization , energy consumption , production cycle , composite material , computer science , chemistry , organic chemistry , polymer , engineering , coating , electrical engineering , operating system , manufacturing engineering
The process for preparing novel sulfonated melamine–formaldehyde resins was studied in detail with the objective of optimizing the production cycle time. The effects of minimizing temperature differences between consecutive reaction steps and reducing reaction time of selected steps of the process were assessed. Experimental work focused on increasing the polymerization step temperature and decreasing its time, resulting in considerable savings in the process time and energy consumption. The resin of the optimized cycle was found to have excellent superplasticizing properties when added to concrete mixes.