树叶-PVDF材料的制备及其吸油性能

姜志仟; 李璇; 高倍; 贾宗承; 赵研

doi:10.13205/j.hjgc.202412023

树叶-PVDF材料的制备及其吸油性能

doi: 10.13205/j.hjgc.202412023

姜志仟¹,
李璇²,
高倍²,
贾宗承¹,
赵研^1, ,

1. 东北大学资源与土木工程学院, 沈阳 110000;
2. 辽宁省生态环境保护科技中心, 沈阳 110000

基金项目:

辽宁省科学技术基金"城市污水处理厂新污染物"第四级"处理技术研发及工程示范"(2022JH2/101300112)

详细信息

作者简介:
姜志仟(2000-),女,硕士,主要研究方向为固体废物资源化利用。240997518@qq.com

通讯作者:
赵研(1983-),男,副教授,主要研究方向为生态环境污染防治。andyzy1983@sina.com

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- 文章访问数: 41
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出版历程
- 收稿日期: 2023-10-13
- 网络出版日期: 2025-01-18

PREPARATION OF A LEAF-PVDF MATERIAL AND INVESTIGATION OF ITS OIL-ABSORBING PROPERTY

1. School of Resources and Civil Engineering, Northeastern University, Shenyang 110000, China;
2. Department of Environment of Liaoning Province, Shenyang 110000, China

摘要

摘要: 目前物理吸附法是治理海洋石油污染的重要技术手段。作为研究热点的生物质吸附材料中的生物质泡沫因具有高孔隙率和丰富三维结构,有着广阔应用前景。但一些生物质泡沫的制备方法复杂,制备过程需要使用有毒有机溶剂。故采用简单、绿色的牺牲模板法,使用真空干燥箱在180 ℃下使得PVDF粉末熔化将NaCl颗粒和树叶粉包裹,再水洗去除NaCl模板,形成多孔结构,成功制备了树叶-PVDF多孔海绵材料。该材料在空气中的水接触角为121°,对各种密度<0.9 g/cm³的油或有机溶剂的饱和吸收容量在350%~540%。该材料还具有良好的机械性能,在15次压缩后仍能保持88%的原始高度。在室温下通过挤压回收水面浮油时,0.35 g材料可以在10 min内回收4.28 g油,回收后水面变澄清,没有明显的泵油残留。
- PVDF /
- 生物质 /
- 绿色工艺 /
- 3D多孔材料 /
- 吸油
Abstract: At present, physical adsorption is an important technical means for marine oil pollution. Biomass adsorbent materials in the research hotspot of biomass foam have a broad application prospect because of their high porosity and rich 3-dimensional structure, but some biomass foams are complicated to prepare and the preparation process requires toxic organic solvents. In this study, a simple and green sacrificial template method was used. The leaf-PVDF porous sponge material was prepared by letting the PVDF powder melt at 180 ℃ to encapsulate the NaCl particles and leaf powder, and then washing to remove the NaCl template to form a porous structure. The water contact angle of the material in the air is 121°, and the saturated absorption capacity of various oils or organic solvents with a density of less than 0.9 g/cm³ is 350%~540%. The material also has good mechanical properties, maintaining 88% of its original height after 15 compression cycles. When the oil slick on the water surface is recovered by extrusion at room temperature, 4.28 g of pump oil can be recovered within 10 min from 0.35 grams of material, and the water surface becomes clear after recovery, and there is no obvious pump oil residue.
- PVDF /
- biomass /
- green process /
- 3D porous material /
- oil absorption

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参考文献(25)

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