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人工晶体学报 ›› 2017, Vol. 46 ›› Issue (1): 134-138.

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二硫化钼纳米片修饰聚氨酯海绵及吸油性能研究

常梦洁;刘俊   

  1. 西安科技大学材料科学与工程学院,西安,710054
  • 出版日期:2017-01-15 发布日期:2021-01-20
  • 基金资助:
    国家自然科学基金(21403165,21501140);陕西省自然科学基础研究计划项目(2015JQ2047,2016JQ2002);陕西省教育厅项目(15JK1453)

Preparation and Oil Absorption Properties of MoS2-modified PU Sponge

CHANG Meng-jie;LIU Jun   

  • Online:2017-01-15 Published:2021-01-20

摘要: 以二硫化钼( MoS2)粉末为原料,采用超声辅助液相剥离法制备了MoS2纳米片,通过MoS2纳米片和聚二甲基硅氧烷( PDMS)依次修饰聚氨酯( PU)海绵,制备了疏水亲油性质的PU-MoS2吸油材料,并测试了其接触角和吸油性能。结果表明,所制备的PU-MoS2海绵有着优良的疏水亲油性能和较强的吸油能力。对不同的有机液体,PU-MoS2海绵分别能够吸取自身重量12~86倍的有机溶剂。尺寸较小MoS2纳米片修饰制备的PU-MoS2海绵具有较高的吸油能力。此外,PU-MoS2海绵在重复使用20次后仍能保持强的吸油能力,表明其可循环利用,具有良好的应用前景。

关键词: 二硫化钼纳米片;液相剥离;聚氨酯海绵;疏水亲油;油水分离

Abstract: MoS2 nanosheets were prepared from MoS2 powders through ultrasonic liquid exfoliation method. Hydrophobic polyurethane ( PU ) sponges for oil absorption were fabricated by subsequent modification with MoS2 nanosheets and polydimethylsiloxane ( PDMS ) . The contact angle and oil absorbent properties of the obtained sponges were measured. The results indicate that PU-MoS2 sponge shows good hydrophobicity and oil absorption capacity. PU-MoS2 sponge has absorbent capacities of 12-86 times of their own weight for different organic solvent. The PU-MoS2 sponge obtained by coating with smaller size MoS2 nanosheets has relatively higher absorption capacity. Moreover, the absorption capacity of the PU-MoS2 sponge did not deteriorate after it was reused for 20 times, so the PU-MoS2 sponge has excellent recyclability for future application.

Key words: MoS2 nanosheets were prepared from MoS2 powders through ultrasonic liquid exfoliation method. Hydrophobic polyurethane ( PU ) sponges for oil absorption were fabricated by subsequent modification with MoS2 nanosheets and polydimethylsiloxane ( PDMS ) . The contact angle and oil absorbent properties of the obtained sponges were measured. The results indicate that PU-MoS2 sponge shows good hydrophobicity and oil absorption capacity. PU-MoS2 sponge has absorbent capacities of 12-86 times of their own weight for different organic solvent. The PU-MoS2 sponge obtained by coating with smaller size MoS2 nanosheets has relatively higher absorption capacity. Moreover, the absorption capacity of the PU-MoS2 sponge did not deteriorate after it was reused for 20 times, so the PU-MoS2 sponge has excellent recyclability for future application.

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