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| Pulp Fiber Modification with NaOH-urea-thiourea Solution and Its Effects on the Property of Filter Paper |
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| DOI：10.11980/j.issn.0254-508X.2016.07.003 |
| Key Words:pulp fiber solution ultrasound modification filter paper |
| Fund Project:国家级大学生创新训练项目 (201510225021)；黑龙江省留学归国人员科学基金( LC2013C11)。 |
| Author Name | Affiliation | | 赵志明 | 东北林业大学材料科学与工程学院,黑龙江哈尔滨,150040 | | 程 飞 | 东北林业大学材料科学与工程学院,黑龙江哈尔滨,150040 | | 吴海杨 | 东北林业大学材料科学与工程学院,黑龙江哈尔滨,150040 | | 胡佳艺 | 东北林业大学材料科学与工程学院,黑龙江哈尔滨,150040 | | 刘文波* | 东北林业大学材料科学与工程学院,黑龙江哈尔滨,150040 |
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| Abstract:Pulp fibers were modified in aqueous NaOH-urea-thiourea solution and treated with ultrasonic to prepare high-permeability filter paper. Effects of the agent concentration, ultrasound power and time of ultrasound treatment were studied. Comparing the morphological change of the fibers in modification and the main parameters of the filter papers (permeability, pore size, bulk, and zero-span tensile strength) prepared with treated and untreated fibers to evaluate the effect of modification. The results showed that the ultrasound treatment process was most favorable at 600 W for 15 min and the agent concentration was 30%, obviously swelling and fibrillation of the fibers, took place under the conditions. The permeability increased from 157.57 L/(m2·s) to 1041.16 L/(m2·s),average pore size increased from 35.171 μm to 47.498 μm, maximum pore size increased from 39.178 μm to 49.712 μm, the bulk increased from 3.16 cm3/g to 5.22 cm3/g for the paper prepared with untreated and treated fibers respectively. |
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