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Preparation and Properties of Polyvinyl Alcohol/Attapulgite Composites

HU Sheng1,2,3, CAI Jing2, ZHOU Hongyan1,2, TIAN Dating1,2, ZHANG Shenghui1,2   

  1. 1. Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei University for Nationalities,
    Enshi 445000, China; 2. School of Chemical and Environment Engineering, Hubei University for Nationalities,
    Enshi 445000, China; 3. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,
    Wuhan University of Technology, Wuhan 430070, China
  • Online:2015-09-15 Published:2015-09-11

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Abstract:

Attapulgite (AT) was dispersed into polyvinyl alcohol (PVA) matrix to obtain PVA/AT composites through
blending method with different compositions, which were investigated with different amounts of AT and glutaraldehyde
(relative to the mass of PVA). The composites were characterized by Fourier transform infrared spectroscopy (FT-IR),
scanning electron microscopy (SEM) and universal matertial testing machine. The mechanical properties of the PVA/AT
composites were optimized. The tensile strength and elongation at break of the composite prepared by adding 1.6% AT
and 4% glutaraldehyde were 22.97 MPa and 199.17%, respectively. The results indicated that the FT-IR characteristic
peaks of PVA/AT composites appeared when introducing AT, and the mechanical performance of blend films was
improved due to the strong interaction between PVA and AT. The thermostability of PVA/AT composites was better
than that of the PVA film.

Key words: polyvinyl alcohol, attapulgite, composites

CLC Number: