CELLULOSE FIBERS MODIFIED BY PVA-BASED POLYMERS VIA GRAFTING AND ADSORPTION
Cationic and anionic polyvinyl alcohol (PVA)s accompanied by glyoxal and glutharaldehyde as crosslinking agents were applied to sulfite fibers. The fibre modification was also conducted via in-situ graft polymerization. The adsorption of PVA on fibers was approved by results of charge density determinations and images of AFM. It was inferred from the results that treating fiber at a high ph diminished its mechanical strength significantly. Moreover, fiber modification by PVA led to some increase in fiber wall strength at the expense of fiber bonding lost. Furthermore, the negative effect of cationic PVA on mechanical properties of fibers was observed whereas the grafting showed increment in fiber bonding.
cellulose fiber PVA glyozal glutharaldehyde paper strength AFM
Pedram Fatehi Guan Yong Xiao Huining
Department of Chemical Engineering & Limerick Pulp and Paper Centre, University of New Brunswick, Fr Department of Chemical Engineering & Limerick Pulp and Paper Centre, University of New Brunswick, Fr
国际会议
广州
英文
417-423
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）