RESEARCH OF UPGRADING SECOND FIBER USING GRAFTED STARCH MULTI-COMPONENT COPOLYMER
A multi-component copolymer was prepared by reaction of starch with acrylic acid and acrylamide. The resulting copolymer was characterized by IR. Because of its special structure, while the synthesized product was treated with second fiber, the closed irreversibly small cavities and pores on fiber surface would be opened again through the swelling of grafted starch multi-component copolymer itself, and then swelling capacity of fiber had almost reached the original level and the interfiber bonding had been improved consequently. The performance on the strength enhancement of recycled fiber hand-sheet was investigated as well. Burst, tear and tensile strength increased 20.7％, 34.9％ and 27.3％, respectively, when the addition of synthesized product was 0.9％ for recycled softwood pulp. In addition, burst, tear and tensile strength increased 36.0％, 19.0％ and 18.9％, respectively, when the addition of synthesized product was 0.7％ for recycled hardwood pulp.
recycled fiber starch grafting copolymer
Wu Wenjuan Zhai Huamin Zhou Xiaocheng Zhou Ran
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
1539-1542
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）