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Synthesis and Application of PDADMAC as AKD Curing Agent
  
DOI：10.11980/j.issn.0254-508X.2013.09.005
Key Words:AKD curing agent  PDADMAC  surface sizing
Fund Project:本课题得到国家十二五科技支撑项目(项目编号：2011BAC11-B04)和天津市科技创新体系及条件平台建设计划项目(编号：10SYSYJC28000)的资金支持。
Author NameAffiliation
梁聪慧 天津科技大学天津市制浆造纸重点实验室,天津,300457 
胡惠仁 天津科技大学天津市制浆造纸重点实验室,天津,300457 
逯大雷 天津科技大学天津市制浆造纸重点实验室,天津,300457 
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Abstract:PDADMAC with high charge density and molecular weight was synthetized by using DADMAC as a monomer and free radical polymerization in aqueous solution with redox initiator system.The effects of reaction temperature, initiator dosage, initiator adding time on the charge density and the intrinsic viscosity of PDADMAC were studied. Then the performance of PDADMAC in surface sizing with AKD containing the sample was tested. The optimal polymerization conditions included using APS-NaHSO3 as initiator, the reaction temperature was 80℃, initiator dosage was 0.4%, initiator adding time was 4 hrs. The experiment results of surface sizing showed that the PDADMAC with intrinsic viscosity of 80 mL/g and charge density of 5.8 mmol/g was more suitable to use as the curing agent than other kinds.
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