文章摘要
倪美乐,张光华,郭明媛,杨冬冬,刘晶,罗杰.淀粉-阳离子接枝共聚荧光乳液的制备及性能[J].精细化工,2020,37(12):0
淀粉-阳离子接枝共聚荧光乳液的制备及性能
Preparation and properties of starch-cationic graft copolymerization fluorescent emulsions
投稿时间:2020-07-08  修订日期:2020-08-10
DOI:
中文关键词: 高得率浆  返黄  荧光增白剂  淀粉  自由基  聚合物  乳液
英文关键词: high yield pulp  yellowing  fluorescent whitening agent  starch  radical  polymers  emulsions
基金项目:国家自然科学基金项目;国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
倪美乐 陕西科技大学 969118330@qq.com 
张光华 陕西科技大学  
郭明媛 渭南师范学院  
杨冬冬 陕西科技大学  
刘晶 陕西科技大学  
罗杰 陕西科技大学  
摘要点击次数: 134
全文下载次数: 0
中文摘要:
      利用亲核取代法制备含有紫外线吸收基团的二苯乙烯型荧光单体(FBs),然后采用接枝共聚技术将FBs、苯乙烯分别与二甲基二烯丙基氯化铵(DMDAAC)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)接枝聚合在淀粉大分子上,制备两种阳离子荧光乳液(ST-DMDAAC-FBs / ST-DMC-FBs)。采用1H-NMR、FT-IR、UV-vis、荧光光谱对产物的结构及光学性能进行表征;通过抗张强度、接触角、紫外光老化试验、SEM等手段对施胶前后纸张的物理性能进行测试。结果表明,经ST-DMDAAC-FBs、ST-DMC-FBs施胶纸张的抗张强度相比空白纸张分别提高43.1%、39.7%,白度分别提高15.52 %ISO、15.28 %ISO,返黄值分别降低1.88、1.75。说明ST-DMDAAC-FBs、ST-DMC-FBs均可以提高纸张白度与强度、抑制纸张返黄,且ST-DMDAAC-FBs对纸张的作用效果更佳。
英文摘要:
      A type of triazinyl aminostilbene fluorescent brighteners (FBs) contains ultraviolet absorption groups has been synthesized by three-step nucleophilic substitution reaction, then use FBs, styrene, Dimethyldiallyl ammonium chloride (DMDAAC) or methyl acryloyloxyethyl trimethyl ammonium chloride (DMC) as polymerization units and ammonium persulfate - sodium bisulfite as initiator to graft copolymerization with gelatinized starch to prepared two kinds of starch graft copolymerization amphoteric fluorescent emulsions (ST-DMDAAC-FBs / ST-DMC-FBs). The structure and properties of products were characterized by 1H-NMR, FT-IR, UV-vis and fluorescence spectra. The physical properties of papers before and after coating by fluorescent emulsion were tested by tensile strength, contact angle, ultraviolet aging test and SEM. The results showed that the tensile strength of ST-DMDAAC-FBS and ST-DMC-FBS increased by 43.1% and 39.7% respectively, the whiteness increased by 15.52% and 15.28% ISO, and the yellow return value decreased by 1.88 and 1.75. The results showed that ST-DMDAAC-FBS and ST-DMC-FBS could both improve papers strength and anti-yellowing, but ST-DMDAAC-FBS had better effect on paper.
  查看/发表评论  下载PDF阅读器
关闭