Enhancing the Physical Strength Properties of APMP by Using Dry Strength Agents
Alkaline peroxide mechanical pulp(APMP)has received increasing interests by virtue of its high yield production(approximately 85%).However,the high fines content,low physical properties and weak bonding capacity hampered its increasing application.In this study,20%and 40%(w/w)ratio of APMP pulp were mixed with bleached kraft pulp to make paper,in which three kinds of dry strength agents(e.g.cationic starch,cationic polyacrylamide,chitosan)were used to increase APMP papermaking properties and physical strength at the dosage of 0.5%,1.0%and 1.5%(w/w).Results showed that the breaking length of handsheet increased with increasing the dry strength agent dosage.Cationic starch(CS)and chitosan improved the tearing index greatly,while cationic polyacrylamide(CPAM)had higher improvement on bursting index when the dry strength agent dosage was less than 1%.CPAM had better performance on tearing index improvement,while CS worked better on bursting index when the agent dosage was above 1%.Bursting index had a great enhancement when chitosan dosage was 0.5%.Whats more,the ring crush increased for all three dry strength agents addition,particularly using CPAM.CS and CPAM were better than chitosan in comprehensive consideration.
Guihua Yang Qianyu Sun Qiang Wang Sipeng Niu Shanshan Liu Yanyun Huang
Key Lab of Paper Science and Technology of Ministry of Education,Qilu University of Technology,Jinan,250353,P.R.China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-3
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）