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IPDI waterborne polyurethane prepolymer emulsion of water dispersion and the mechanical properties of film

toftin-freeantifoulingself-polishingcoatingsusingsimulation [J] Pro-gressinOrganicCoatings, 2008 (63) :79-86. [3O] Tian Jun, Xu Jinfen,microsoft office 2010, Xue Qun-Ji. Drag Reduction of low surface energy coating Study [J]. Hydrodynamics Research and Development,ugg milano, 1997 (12) :27-32. [31] FABIENNEF, ISABELLEL, VAIERIEL. SEMandEDXanalysis: twopowerfultechniquesforthestudyofantifoulingpaints [J] ProgressinOrganicCoatings, 2005 (54) :216-223. Received 2009-08-28 (revised )',;,,', ≮, e, c, 0 ,,!,|, 0, e,mbt shoes women,,-p!,:,Moncler pas cher, 0 -,MBT Karani für, '0! A ; heart, 0 <. / 0 to 0i0, a 0-0, _. ! ■ 2, (on the next page 57) Participation Summer \6TheCHIVeofDCS material is consistent. As, 2,3 is only soft segment molecular weight is different, 4 2,3 Although the soft segments are different, but the difference is not large. Figure 6 shows, the glass transition temperature or less 2,3, 4 decreased, the composition of soft segment is due to the reduction of methyl side chain resulted in relatively supple chain, but higher than those reported in the literature value of 7T (a 4O ℃ ) high. 3 Concluding remarks adipic acid by PNA, a new diol polyethylene glycol esters as IPDI-based soft segment prepolymer, the molecular weight by controlling the PNA, may lead to lower prepolymer viscosity, achieved without the time or less water dispersion Add organic solvents reduce the viscosity of purpose; to control the molecular weight of PNA in 1400 below the emulsion film has strong tensile strength, mechanical performance to meet application requirements.