Sensitivity Analysis Of Process Parameters For Polyurethane Based Panel Air Filters
The polyurethane processing for panel air filters (flexible foam)for high yield (free of all defects) is very
critical and sensitive on account of Polyurethane making chemistry, short reaction times, process conditions, ambient
temperature and humidity , equipment dispensing-mixing precision and moulds’ surface quality, moulds’ temperature and
uniformity impacting the defects in filters like pin holes, short filling, over filling or growth, skin damage, loose skin,
voids, hardness variations, shrink marks, knit lines etc. Research is conducted to study and establish a correlation between
various parameters so that process settings can be altered to ensure minimum variation to output in spite of variation in
inputs and noise to the system.