... content:>88% 3.degree of ion:35-40% Paper retention and drainage agentPaper retention agent PDAE-I,PDAE- ... them according to different paper types, which are separately for the writing culture paper, paperboard, newsprint paper and so on.Main ... raw material costBetter fiber, collid, and stuffing retention, better paper qualityLow white water concentration, reduce solid content ratio, strengthening ...