| abstract |
The invention relates to a preparation method of a water-based flame-retardant water pressure-resistant polyurethane emulsion for Dacron oxford tent cloth, which is prepared from isophorone diisocyanate, hydrogenated phenyl methane diisocyanate, polyoxypropylene triol, tris (dipropylene glycol) phosphite, linear dihydroxyalkyl siloxane, melamine cyanurate, dimethylolpropionic acid, 2-methyl-1, 3-propylene glycol, triethylamine, hydrazine hydrate and deionized water through prepolymerization reaction, neutralization reaction, emulsification reaction and chain extension reaction. Has the advantages of stiff hand feeling, dryness, high elasticity, high fastness, cold resistance, high water pressure resistance, good flame retardance, environmental protection and low production cost. |