Preparation of Super-hydrophobic Polyurethane Porous Materials <italic style="font-style: italic">via</italic> Hexane Induction Method for Oil/Water Separation

QIU Dan; ZHENG Jing-ying; XU Jun-nan; YUE Wen-ming; FANG Qing; LUO Zi-zhen; WANG Ling-hui

doi:10.14028/j.cnki.1003-3726.2023.10.010

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Preparation of Super-hydrophobic Polyurethane Porous Materials via Hexane Induction Method for Oil/Water Separation

更新时间：2023-09-19

- Preparation of Super-hydrophobic Polyurethane Porous Materials via Hexane Induction Method for Oil/Water Separation
- Polymer Bulletin Vol. 36, Issue 10, Pages: 1337-1346(2023)
- 作者机构：
  
  宁波工程学院材料与化学工程学院，宁波　315211
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2023.10.010
  CLC：
- Published：20 October 2023，
  
  Received：19 December 2022，
  
  Revised：28 February 2023，
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QIU Dan, ZHENG Jing-ying, XU Jun-nan, YUE Wen-ming, FANG Qing, LUO Zi-zhen, WANG Ling-hui. Preparation of Super-hydrophobic Polyurethane Porous Materials via Hexane Induction Method for Oil/Water Separation. [J]. Polymer Bulletin 36(10):1337-1346(2023)
DOI：

QIU Dan, ZHENG Jing-ying, XU Jun-nan, YUE Wen-ming, FANG Qing, LUO Zi-zhen, WANG Ling-hui. Preparation of Super-hydrophobic Polyurethane Porous Materials via Hexane Induction Method for Oil/Water Separation. [J]. Polymer Bulletin 36(10):1337-1346(2023) DOI： 10.14028/j.cnki.1003-3726.2023.10.010.

摘要

以聚氨酯(PU)为原料，正己烷为偏析剂，通过热致相分离法(TIPS)制备出了油水分离用超疏水多孔材料。通过X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、热重分析(TGA)和氮气吸脱附分析对材料的表面组成、孔结构和热稳定性进行了表征，结果表明正己烷的加入对孔结构和热稳定性影响不大，但可以诱导PU链中的苯环在表面富集，使得水接触角达到149°。该多孔材料对大豆油、甲苯、四氯化碳、乙醇、丙酮、汽油、硅油和环己烷都具有很好的吸附性能，饱和吸附量最大可达自身重量的11.33 倍。改进的吸附速率实验表明正己烷诱导法制备的PU 多孔材料对大豆油的吸附速率可达到0.199 g·g

-1

·min

-1

，远大于普通PU 多孔材料。将该方法制备的管状PU 多孔材料用于水包油乳液的处理，可以实现乳液的快速破乳和分离，且能快速再生使用，在油水乳液的处理中具有重要的应用前景。

Abstract

Super-hydrophobic polyurethane porous materials (PU-Hex) were prepared

via

thermally induced phase separation (TIPS) using PU as raw material and n-hexane as segregation reagent. The surface composition and pore structure of the materials were characterized by X-ray photoelectron spectroscopy (XPS)

scanning electron microscopy (SEM)

thermogravimetric analysis (TGA) and nigrogen adsorption and desorption analysis. The results showed that the benzene rings of PU chain were enriched on the surface

while the pore structure and thermal stability remained unchanged. The surface water contact angle reached as high as 149°. PUHex was capable of absorbing various oils solvents from oil/water mixtures selectively

and the saturated absorption performance reached 11.33 times of its own weight. The adsorption rate of soybean oil by PU-Hex porous materials was 0.199 g·g

-1

·min

-1

larger than that of original PU porous materials. The afterward fabricated tubular PU-Hex porous materials could demulsificate emulsion rapidly

and clean water was separated from the emulsion. Moreover

the separation performance of the tubules restored quickly and easily

rendering them desirable candidates for oil-water emulsion treatment.

关键词

聚氨酯多孔材料正己烷诱导热致相分离油水分离

Keywords

Polyurethane porous materialn-HexaneInductionThermally induced phase separationOil/Water separation

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Preparation of Super-hydrophobic Polyurethane Porous Materials via Hexane Induction Method for Oil/Water Separation

DOI：10.14028/j.cnki.1003-3726.2023.10.010

摘要

Abstract

关键词

Keywords

references