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| The Influence of Alkali Pretreatment on the Dissolution of Bamboo Dissolving Pulp in NaOH/Urea System |
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| DOI：10.11981/j.issn.1000-6842.2017.02.12 |
| Key Words:bamboo dissolving pulp; dissolution; cellulose; pretreatment; NaOH solution |
| Fund Project:国家自然科学基金项目（51403156）；天津市应用基础与前沿技术研究计划自然科学基金一般项目(13JCYBJC38800)。 |
| Author Name | Affiliation | | 石 岩 | 天津商业大学包装工程系，天津，300134 | | 张 括 | 天津商业大学包装工程系，天津，300134 | | 朱雅桐 | 天津商业大学包装工程系，天津，300134 | | 胡振兴 | 天津商业大学包装工程系，天津，300134 | | 孙 楠 | 天津商业大学包装工程系，天津，300134 | | 白苗丽 | 天津商业大学包装工程系，天津，300134 | | 彭 琳 | 天津商业大学包装工程系，天津，300134 |
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| Abstract: |
| Commercial bamboo dissolving pulp with degree polymerization（DP） of 1228 was used as raw material, dissolving behavior in 7%NaOH/12%urea solvent system at lower temperature of bamboo dissolving pulp pretreated by different concentration（1%~12%）of NaOH solution was studied by polar microscopy analysis, UV-Vis spectrum analysis, dynamic light scattering （DLS） and TEM analysis of cellulose solution, and determination of dissolving proportion. The results showed that bamboo dissolved pulp pretreated by 9%NaOH had the best dissolving behavior in 7%NaOH/12%urea aqueous solution, indicating proper concentration of alkali solution pretreatment could improve the reaction activity of cellulose and accessibility of 7%NaOH/12%urea aqueous solution to cellulose of bamboo dissolving pulp． |
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