Study on the Simulation of Thermal Oxidation of Polyphenylene Sulfide Via Design of Experiments(DOE)
The simulation and prediction of thermal oxidation of polyphenylene sulfide(PPS)was studied.The measurement system of melt mass-flow rate(MFR)was evaluated using measurement system analysis(MSA),and the thermal oxidation of PPS was simulated via the method of design of experiments(DOE).The results showed that the credible data of MFR could be obtained if the value of MFR is less than 1 000 g/10 min.The model of PPS thermal oxidation and the calculation formula of MFR of crosslinked product were obtained by JMP software simulation.The MFR of crosslinked decreases with the increase of hot air temperature,but if the hot air temperature is close to or higher than the initial melting temperature of PPS resin,PPS resin is easy to melt and sticks to the inner wall of the equipment or agglomerates,which affects the crosslinking reaction.Through single factor verification experiment,the application range of the model is determined to be 200-240 ℃ hot air temperature,more than 20 hours heat treatment time,and the model deviation is between-6.0%and 6.2%.JMP software is used to guide the cross-linked PPS resin production and DOE extended design was carried out to further establish the thermal oxidation treatment model for practical production for technical guidance.
polyphenylene sulfidethermal oxidationdesign of experiments(DOE)measurement system analysis(MSA)