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耐盐增稠剂的合成与性能表征

Synthesis and Properties of Salt Resistant Thickener

【作者】 张海玲

【导师】 周向东;

【作者基本信息】 苏州大学 , 纺织化学与染整工程, 2012, 硕士

【摘要】 因为活性染料印花糊中常常需要加入各种盐,而市场上大多数合成增稠剂耐盐性较差,故不能满足应用要求。本课题针对这个问题,引入对盐溶液不敏感的单体,采用反相乳液聚合法制备了耐盐性良好的增稠剂,并将其应用于活性染料印花小样实验。1、采用反相乳液聚合法,以丙烯酸、氨水和丙烯酸十八酯为主要原料,以煤油为溶剂、Span-80为乳化剂、N,Nˊ-亚甲基双丙烯酰胺为交联剂、过硫酸钾和过硫酸铵为引发剂及Tween-80为转相剂,制备了一种耐盐增稠剂SAT。2、采用反相乳液聚合法,以丙烯酸、氨水和烯丙基聚乙二醇为主要原料,以煤油为溶剂、Span-80为乳化剂、N,Nˊ-亚甲基双丙烯酰胺为交联剂、过硫酸钾和过硫酸铵为引发剂及Tween-80为转相剂,制备了一种耐盐增稠剂APGT。3、通过FTIR、TG-DTA、Zeta电位和粒径分析等测试方法,表征了耐盐增稠剂SAT和APGT的结构和性能。4、实验表明,调节丙烯酸铵溶液的pH值为6.5左右,以煤油为溶剂,丙烯酸十八酯和乳化剂用量分别为单体总用量的1.5%和8%时,制得的增稠剂SAT(1%原糊)黏度为1387.7mPa·s,其对盐的黏度保留率为47.82%。5、将增稠剂SAT应用于活性染料印花,得色量(正面K/S值)为20.019以上,渗透率为67.59%以上,色泽不匀度为0.173以下,脱糊率为84.27%以上。6、调节丙烯酸铵溶液的pH值为6.5左右,以煤油为溶剂,且水油相比例为3:1,烯丙基聚乙二醇、交联剂、乳化剂及转相剂用量分别为单体总用量的1.5%、0.6‰、8%和8%,反应温度为65℃,搅拌速度为200r/min时,制得的增稠剂APGT(1%原糊)黏度为1551.4mPa·s,其对盐的黏度保留率为49.13%。7、将增稠剂APGT应用于活性染料印花,得色量(正面K/S值)为21.397以上,渗透率为70.35%以上,色泽不匀度为0.167以下,脱糊率为86.34%以上,综合性能良好。

【Abstract】 There are often kinds of salts in reactive dye printing paste, while most syntheticthickeners in the market are not salt resistant, so they can not meet the requirements ofthe application. This paper was aimed to solve the problem, and prepared salt resistantthickener with the monomer which was not sensitive to salt solution by inverseemulsion polymerization, and applicated it in reactive dye printing sample experiment.1、Salt resistant thickener SAT was prepared by inverse emulsion polymerizationwith acrylic acid, ammonia and stearyl acrylate as main monomers, using kerosene assolvent, Span-80as emulsifier, N,N-methylene diacrylamide as cross-linking agent,potassium sulfate and ammonium persulfate as initiator, and Tween-80as phase transferagent.2、Salt resistant thickener APGT was prepared by inverse emulsion polymerizationwith acrylic acid, ammonia and anyl-polyethylene glycol as main monomers, usingkerosene as solvent, Span-80as emulsifier, N,N-methylene diacrylamide ascross-linking agent, potassium sulfate and ammonium persulfate as initiator, andTween-80as phase transfer agent.3、The structure and properties of salt resistant thickener SAT and APGT werecharacterized by FTIR, TG-DTA, Zeta potential and particle size analysis tests.4、To salt resistant thickener SAT, experiments showed that the ammoniumacrylate solution pH value was regulated around6.5, using kerosene as solvent, thedosages of stearyl acrylate and emulsifier were1.5%and8%of total monomers, so thatthe viscosity of the original paste containing1%thickener of1387.7mPa·s, and theviscosity retention rate of47.82%.5、The thickener SAT was used in reactive dye printing. The surface color yieldreached above21.265, the penetration rate reached more than67.59%, the degree ofuneven color was lower than0.173, and the rate of de-paste was more than84.27%.6、To salt resistant thickener APGT, experiments showed that the ammonium acrylate solution pH value was regulated around6.5, using kerosene as solvent, wateroil ratio of3:1, the dosages of APEG, cross-linking agent, emulsifier and phase transferagent were1.5%,0.6‰,8%and8%of total monomers, reaction temperature was65℃,the stirring speed was200r/min, so that the viscosity of the original paste containing1%thickener of1551.4mPa·s, and the viscosity retention rate of49.13%.7、The thickener APGT was used in reactive dye printing. The surface color yieldreached above21.397, the penetration rate reached more than70.35%, the degree ofuneven color was lower than0.167, and the rate of de-paste was more than86.34%.

  • 【网络出版投稿人】 苏州大学
  • 【网络出版年期】2012年 10期
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