Acta Phys. -Chim. Sin. ›› 2004, Vol. 20 ›› Issue (08): 882-886.doi: 10.3866/PKU.WHXB20040820

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Interphase Analysis of Adhesion Bonded Aluminum Sheet/polypropylene and Maleic Anhydride Grafted Polypropylene by XPS

Chen Ming-An;Zhang Xin-Ming;Xie Xuan   

  1. College of Materials Science and Engineering, Central South University, Changsha 410083
  • Received:2003-12-30 Revised:2004-03-30 Published:2004-08-15
  • Contact: Chen Ming-An E-mail:ma-chen@vip.163.com

Abstract: Interphases at the adhesion bonded interfaces between aluminum sheet and polypropylene(PP)/and PP blended with maleic anhydride grafted polypropylene(PP-g-MAH) were studied by X-ray photoelectron spectroscopy (XPS), and a mechanism of coordination bonding at the interfaces was proposed. Compared to PP, for PP with addition of PP-g-MAH the spectra of Al 2p and O 1s at the surface of aluminum sheet shift to higher binding energy obviously, which indicates that chemical interaction between PP-g-MAH and surface of the aluminum sheet occurs, and as a result Al-O-C bond is formed. There is no chemical interaction between PP and surface of the aluminum sheet. The obvious improvement of the adhesion strength between aluminum sheet and PP with PP-g-MAH could be attributed to the formation of Al-O-C bonds.

Key words: Aluminum sheet/polypropylene laminated composite, Maleic anhydride grafted polypropylene (PP-g-MAH), Interphase, Coordinative bond, X-ray photoelectron spectroscopy(XPS)