Anionomer-type waterborne polyurethane dispersions （PUDs） were obtained from poly （propylene glycol） （PPG）, isophorone diisocyanate （IPDI） and dimethylolpropionic acid （DMPA） through a modified prepolymer is...Anionomer-type waterborne polyurethane dispersions （PUDs） were obtained from poly （propylene glycol） （PPG）, isophorone diisocyanate （IPDI） and dimethylolpropionic acid （DMPA） through a modified prepolymer isocyanate process. Two series of polyurethanes were prepared （Groups A and B） and a new prediction model based on grey relational analysis is introduced to predict the impact order of raw materials on several properties, such as solids content, viscosity, acid number and electrolytic stability of polyure- thanes. It is found that the model can successfully predict the impact of raw materials on the properties through the designed demonstration experiments. Furthermore, the results of the prediction model show that DMPA plays a key role in viscosity, oartial acid values and electrolvtic stability.展开更多
基金?nancial support provided by Program for New Century Excellent Talents in University by the Ministry of Education of China(Grant No.NCET-12-1045)the Shaanxi Programs for Science and Technology Development(No.2010K01-096)Ph.D.Innovation Fund Projects of Xi’an University of Technology(No.310-252071501)
文摘Anionomer-type waterborne polyurethane dispersions （PUDs） were obtained from poly （propylene glycol） （PPG）, isophorone diisocyanate （IPDI） and dimethylolpropionic acid （DMPA） through a modified prepolymer isocyanate process. Two series of polyurethanes were prepared （Groups A and B） and a new prediction model based on grey relational analysis is introduced to predict the impact order of raw materials on several properties, such as solids content, viscosity, acid number and electrolytic stability of polyure- thanes. It is found that the model can successfully predict the impact of raw materials on the properties through the designed demonstration experiments. Furthermore, the results of the prediction model show that DMPA plays a key role in viscosity, oartial acid values and electrolvtic stability.
