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Performance of Dialdehyde Carboxymethy Chitosa-Cationic Starch as Paper Strengthening
  
DOI：10.11980/j.issn.0254-508X.2015.09.002
Key Words:carboxymethyl chitosan  dialdehyde carboxymethyl chitosan  cationic starch  strengthening agent  enhancement mechanism
Fund Project:国家自然科学基金(31270633)；江苏高校优势学科建设工程资助项目。
Author NameAffiliation
王　萍1,2 1.江南大学纺织服装学院造纸研究室,江苏无锡，214122；2.江南大学生态纺织教育部重点实验室,江苏无锡，214122 
龙　柱1,2,* 1.江南大学纺织服装学院造纸研究室,江苏无锡，214122；2.江南大学生态纺织教育部重点实验室,江苏无锡，214122 
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Abstract:Dialdehyde carboxymethyl chitosan(DCMCS)was prepared by the selective oxidation of carboxymethyl chitosan (CMCS). A new paper strengthening agent carboxymethyl chitosan-cationic starch (CS) was prepared by composite reaction. Research showed that a good strengthening result was obtained when the charge of DCMCS-CS was 0.6%. The strength of the paper was the best compared with adding the same dosage of the single additives or DCMCS-CS. SEM showed that DCMS-CS could efficiently increase fiber bonding strength and bonding the area between the fibers, sequentially increase the strength of paper sheets.
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