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| Study on Synergistic Use of Water-soluble UVA and Naphthalimide Fluorescent Brighteners in Inhibition of Yellowing |
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| DOI：10.11980/j.issn.0254-508X.2012.10.005 |
| Key Words:naphthalimide ultraviolet absorber inhibition of yellowing blend |
| Fund Project:陕西省自然科学基金项目——高分子荧光增白剂的制备及作用机理研究，项目编号：2009JM20。 |
| Author Name | Affiliation | | 郭锦鸽 | 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 | | 张光华 | 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 | | 徐海龙 | 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 | | 刘国俊 | 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 | | 韩文静 | 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 |
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| Abstract:Naphthalimide fluorescent brightening agent(FBA) was synthesized using 4-bromo-1,8-naphthalic anhydride as raw material through amidation with ethanolamine, then introducing ethoxy electron-donating group into 4-bit of naphthalene ring. With cyanuric chloride as the crosslinking monomer, the water-solubility of ultraviolet absorber (UVA) 2,4-dihydroxy-benzophenone was modified by sodium p-aminobenzenesulfonate. The molecular structures were characterized by IR spectra；optical properties were measureed by UV spectra and fluorescence spectra. Coating the two prepared additives alone or blends of them with a certain proportion on the surface of the paper, the ultraviolet accelerated yellowing inhibition performance of them were studied. The results showed that: the blends of naphthalimide fluorescent brighteners and water-soluble UVA have better synergistic effect, have more excellent yellowing inhibition effect than them used alone, and the optimum ratio of fluorescent brighteners and UVA is 1∶3. |
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