SYNTHESIS OF THREE-COMPONENT STARCH-BASED COPOLYMER USED IN SECOND FIBER
In this paper, a three-member starch based copolymer (TSC) was prepared by grafting acrylamide and methyl acrylyl ethyl trimethyl ammonium chloride (DMC) on the backbone of natural starch. The polymerization conditions, such as consumption of monomer, initiator, polymerizing temperature and reaction time were investigated and the optimal reaction conditions were obtained. The optimal conditions were: mass ratio of starch/acrylamide/DMC 4.5:4:3, the dosage of initiator 0.3％, reaction temperate 65 ℃ , reaction time 3 h, reactant concentration 0.25g/mL. The resulting copolymer was characterized by IR. Strength of paper sheet from recycled fiber was improved significantly. For example, the tensile strength was increased up to 87.5％, the burst strength increased nearly twice and the tear strength to 18.8％ when synthesized copolymer was applied and the synthesized product addition was 0.8％, tear strength was 70％ and addition 1.4％. The results showed that the property of fiber itself could be improved, which increased potential of second fiber for papermaking.
recycled fiber starch grafting copolymer
Zhou Yang Wu Wenjuan Zhai Huamin Yang Dexin
Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing,210037, China
国际会议
广州
英文
1919-1922
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）