| 杨保宏,田国栋,田超超,聂双喜,段超.基于电纺预处理溶解浆的纤维素复合膜制备与应用[J].中国造纸学报,2022,37(4):84-91 |
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| 基于电纺预处理溶解浆的纤维素复合膜制备与应用 |
| Preparation and Application of Cellulose Composite Membrane based on Electrospinning-pretreated Dissolving Pulp |
| 投稿时间：2022-08-30 |
| DOI：10.11981/j.issn.1000-6842.2022.04.84 |
| 中文关键词: 纤维素 MOF 静电纺丝 油水分离 抗菌材料 |
| Key Words:cellulose MOF electrospinning oil-water separation antibacterial material |
| 基金项目:国家自然科学基金项目（22178206，31700510）；广西清洁化制浆造纸与污染控制重点实验室项目（2021KF16）。 |
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| 中文摘要: |
| 以溶解浆为原料，三氟乙酸（TFA）和二氯乙烷（DCE）为溶解体系，通过预添加聚环氧乙烯（PEO）增稠剂和Cu（Ac）2前驱体制得纺丝液，并利用静电纺丝预处理技术，成功制得负载有机金属框架物（MOF，即HKUST-1）的电纺纤维素复合膜（HKUST-1@CF），探讨了溶解浆种类、TFA/DCE体积比、PEO和Cu（Ac）2添加量等对HKUST-1@CF结构与性能的影响。结果表明，当选用阔叶木溶解浆为原料、TFA/DCE体积比为6∶4、纤维素/PEO/Cu（Ac）2质量比为10∶2∶3时，纤维素纺丝性能最佳；预添加PEO与Cu（Ac）2有助于MOF负载（最高负载量达16.1%），且HKUST-1@CF膜表现出优异的油水分离性（分离效率98%）及良好的抑菌性能（抑菌圈3.1 mm），其在膜分离及环境治理方面具有潜在应用价值。 |
| Abstract: |
| A novel cellulose composite membrane， HKUST-1@CF loaded with metal-organic frame （MOF， i.e.， HKUST-1）， was prepared by electrospinning pretreatment using dissolving pulp as raw material and trifluoroacetic acid （TFA）/dichloroethane （DCE） as dissolving system. Polyethylene oxide （PEO） and copper acetate （Cu（Ac）2） were pre-added into the dissolving system as thickener and precursor， respectively， to fabricate spinning dope system. The effects of dissolving pulp type， TFA/DCE volume ratio， and PEO and Cu（Ac）2 dosages on the structure and properties of HKUST-1@CF were comprehensively investigated. The results showed that when hardwood dissolving pulp was used as raw material， the volume ratio of TFA/DCE was 6∶4 and the mass ratio of cellulose/PEO/Cu（Ac）2 was 10∶2∶3， cellulose had the best spinning performance. The pre-addition of PEO and Cu（Ac）2 contributed to the HKUST-1 load， up to 16.1%. The as-prepared composite membrane showed excellent oil-water separation with separation efficiency of 98% and good bacterial inhibition performance with inhibition circle of 3.1 mm， showing potential application value in membrane separation and environmental governance. |
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