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日用化学工业（中英文）

日用化学工业 ›› 2016, Vol. 46 ›› Issue (7): 382-386.doi: 10.13218/j.cnki.csdc.2016.07.004

• 开发与应用 • 上一篇    下一篇

一种二元共聚物阴离子表面活性剂的制备及在废纸脱墨中的应用

张昌辉,马燕,游群杰   

  1. 陕西科技大学 教育部轻化工助剂化学与技术重点实验室,陕西 西安 710021
  • 出版日期:2016-07-22 发布日期:2019-04-18
  • 通讯作者: 马燕,硕士研究生,电话:18700866846,E-mail:357638374@qq.com。
  • 作者简介:张昌辉(1962-),男,陕西咸阳人,教授,电话:13891093587,E-mail:zhangch7208@163.com。

Synthesis of a kind of anionic surfactant binary copolymer and its application in waste paper deinking

ZHANG Chang-hui,MA Yan,YOU Qun-jie   

  1. Key Lab Auxiliary Chemistry & Technology for Chemical Industry of Ministry of Education, Shaanxi University of Science & Technology,Xi'an,Shaanxi 710021,China
  • Online:2016-07-22 Published:2019-04-18

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摘要： 以油酸钠(NaOL)和丙烯酸(AA)为原料,采用水溶液自由基聚合法制得NaOL-AA二元共聚物阴离子表面活性剂,并将其作为脱墨剂的化学成分用于废纸脱墨。以脱墨效果为评判标准,考察NaOL-AA的较佳合成工艺,并研究了其与非离子表面活性剂脂肪酸甲酯乙氧基化物(FMEE)复配的脱墨效果。对NaOL-AA进行结构表征及物理化学性能测试,并对自制及复配脱墨剂与市售脱墨剂的脱墨效果进行了比较。结果表明:当n(NaOL)∶n(AA)=1∶3,反应温度为85 ℃,反应时间为6 h,引发剂过硫酸铵(APS)用量为单体总质量的2%,pH=8～9时,其脱墨效果较好;将NaOL-AA与FMEE按m(NaOL-AA)∶m(FMEE)=1∶2复配时,再生纸白度可达69.8%,残余油墨量仅为44.6 mm2/m2。

关键词: 脱墨剂, 油酸钠, 丙烯酸, 共聚物, 白度, 残余油墨量

Abstract: An anionic surfactant binary copolymer NaOL-AA was synthesized with aqueous solution free radical polymerization using sodium oleate (NaOL) and acrylic acid (AA) as starting materials.The product was applied as the ingredient of waste paper deinking agent.Optimization of conditions for the preparation of the product was conducted taking the deinking effect as criteria.Further,the product was blended with a nonionic surfactant fatty acid methyl ester ethoxylate (FMEE).Structure of the product was characterized by FT-IR;the molecular weight and its distribution of the product were measured by GPC;and the deinking effect of deinking agents containing the product or the blended product,and purchased from market was tested and compared.Results showed that the optimal conditions for the synthesis process are as follows:n(NaOL)∶n(AA)=1∶3;reaction temperature,85 ℃;reaction time,6 h;dosage of initiating agent ammonium persulfate (APS),2% of the mass of total reactants;and pH=8-9.When the blended product at the mole ratio of m(NaOL-AA)∶m(FMEE)=1∶2,the whiteness of the deinked waste paper could achieve 69.8% and the residual ink on the waste paper drops to 44.6 mm2/m2.

Key words: deinking agent, sodium oleate, acrylic acid, copolymer, whiteness, residual ink

中图分类号: 

  • TQ423