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| Paper Deacidification with Lithium Tetraborate |
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| DOI：10.11980/j.issn.0254-508X.2014.06.008 |
| Key Words:paper deacidification lithium tetraborate borax |
| Fund Project:国家自然科学基金项目(No. 21076045)；2013年广东省国家级大学生创新创业训练项目。 |
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| Abstract:In this work, lithium tetraborate was used for deacidification of two kinds of paper. Effects of concentration of lithium tetraborate and treatment time on pH and strengh properties of the paper were mainly investigated at 25℃, the deacidification effects of lithium tetraborate were compared with that of borax. Results showed that the strengh properties of treated paper were the best when the concentration of lithium tetraborate was 5.0 mg/mL and the immersion time was 30 min, and the pH of treated paper could be controlled in an appropriate range of 7.5~8.5. After aging test, the strengh properties of the paper deacidified with lithium tetraborate didn’t significantly deteriorate comparing those of un-aged paper. Under optimal deacidification solvent concentration and treatment time, strength properties of the paper deacidified with lithium tetraborate were better than those deacidified with borax. In a word, lithium tetraborate was a good reagent for paper deacidification. |
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