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首页> 外文期刊>Journal of Applied Polymer Science >Poly(vinyl alcohol)/CaCO3-diacid nanocomposite: Investigation of physical and wetting properties and application in heavy metal adsorption
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Poly(vinyl alcohol)/CaCO3-diacid nanocomposite: Investigation of physical and wetting properties and application in heavy metal adsorption

机译：聚（乙烯醇）/ CaCO 3-二氨基纳米复合材料：对重金属吸附的物理和润湿性能及应用研究

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摘要

Poly(vinyl alcohol) (PVA) nanocomposite and modified CaCO3 nanoparticles (NPs) were fabricated by ultrasound agitation method with particle content altering from 3, 5, and 8 wt %. The CaCO3 surface was successfully treated by 10 wt % of bioactive dicarboxylic acid (DA). The influences of loading modified NPs on the thermal, mechanical, adsorption, contact angle, and physical properties of the poly(vinyl alcohol) nanocomposite films were thoroughly studied. The results showed that incorporation of modified CaCO3 into the PVA matrix had better performance than the pure PVA. Meanwhile, tensile strength, Young's modulus, and thermal stability are enhanced from 33.36 MPa, 1.26 GPs, and 242.918C (neat PVA) to 81.7 MPa, 4.81 GPa, and 312.95 degrees C (PVA/CaCO3-DA NC 5 wt %), respectively. Also, the adsorption capacity of the PVA/CaCO3-DA NCs 5 and 8 wt % revealed that the NC films could act as an appropriate absorbent for the removal of Cd(II) ions with maximum adsorption capacity of about 20.70 and 25.19 mgg(-1) for Cd(II), respectively. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45414.
机译：通过超声搅拌法制造聚（乙烯醇）（PVA）纳米复合材料和改性的CaCO 3纳米颗粒（NPS），其颗粒含量从3,5和8wt％改变。通过10wt％的生物活性二羧酸成功处理CaCO 3表面。彻底研究了加载改性NP对聚（乙烯醇）纳米复合膜的热，机械，吸附，接触角和物理性质的影响。结果表明，将改性的CaCO 3掺入PVA基质具有比纯PVA更好的性能。同时，从33.36MPa，1.26GPS和242.918C（整洁PVA）至81.7MPa，4.81GPa和312.95摄氏度（PVA / Caco3-DA NC 5 Wt％），增强了拉伸强度，杨氏模量和热稳定性，增强了31.36MPa，1.26MPa，4.81MPa，分别。此外，PVA / CaCO3-DA NCS 5和8wt％的吸附能力显示，Nc膜可以作为除去CD（II）离子的适当吸收剂，最大吸附能力为约20.70和25.19mg（ - 1）分别用于CD（II）。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,45414。

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