Composite of Shortcut Grass and Poly(vinyl alcohol): Preparation and Performance

Abstract:

The environmentally friendly composite of poly (vinyl alcohol) (PVA) and shortcut grass were prepared by hot-pressing method. First, dry grass was cut into 1.5 cm long segments. Then, shortcut grass was mixed with PVA by using water as medium. The mixed uniformly raw materials were hot-pressed at different temperatures for different times. The effects of raw material ratio, hot-pressing temperature and hot-pressing temperature on composites performance were studied. Results showed that composites tensile strength increases with the increase of PVA content. Tensile strength reaches 3.59 MPa at 50% of PVA content. The tensile fracture stretch increases with PVA content and reaches 25.28% when PVA content is 50%. The tensile strength first increases and then decreases with the increase of hot-pressing temperature and hot-pressing temperature. The hardness of composite is uneven. Hardness at 20% of PVA content is lower slightly than that at other PVA contents.

• Periodical: Advanced Materials Research (Volumes 881-883)
• Pages: 1179-1182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.881-883.1179
• Online since: January 2014
• Authors: Chuan Bao Wu*, Yu Jun Zhou
• Keywords: Composite, Environmentally Friendly Product, Hot Pressing, Strength

References

[1] L. Wang, J. Littlewood and R.J. Murphy: Renew. Sust. Energ. Rev. Vol. 28 (2013), p.715.

[2] X.J. Zhang, T.S. Zhaob, N. Harac, Y.Z. Jinc, C.Y. Zeng, Y. u Yoneyama and N. Tsubaki: Fuel Vol. 116(2014), p.34.

[3] L. Zhang and Y.C. Hu: Mater Design Vol. 55(2014), p.19.

[4] J.J. Liu, C.J. Jia and C.X. He: AASRI Procedia Vol. 3(2012), p.89.