Please wait a minute...
浙江大学学报(工学版)
J4  2009, Vol. 43 Issue (09): 1709-1713    DOI: 10.3785/j.issn.1008-973X.2009.
    
Adhesion mechanism of steel and epoxy adhesive modified by nano-Al2O3
Zhai Lan-Lan, LING Guo-Beng, LI Jian
(Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China)
Download:   PDF(561KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

The adhesion mechanism of steel and epoxy adhesive modified by nano-Al2O3 was investigated by pull-off adhesion strength, surface energy parameter measurement and X-ray photoelectron spectroscopy (XPS) analysis of epoxy adhesive. The surface energy parameter results indicated that the polarity of epoxy adhesive was increased with the addition of nano-Al2O3 in epoxy adhesive. The XPS results showed that polar carboxyl group was formed in epoxy adhesive film with the addition of 2% nano-Al2O3. Moreover, the amount of the polar carboxyl group per contact area decreased with 8% nano-Al2O3 added in epoxy adhesive while there was no new carboxyl group with 1% nano-Al2O3 in epoxy adhesive, which were consistent with the variation of adhesion strength of epoxy adhesive. The adhesion strength increase of steel and epoxy adhesive modified by nano-Al2O3 mainly resulted from the new carboxyl group formed by the interaction between nano-Al2O3 and epoxy adhesive．

CLC:  TQ 050.4  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

Zhai Lan-Lan, LING Guo-Beng, LI Jian. Adhesion mechanism of steel and epoxy adhesive modified by nano-Al2O3. J4, 2009, 43(09): 1709-1713.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2009.     OR     http://www.zjujournals.com/eng/Y2009/V43/I09/1709


纳米Al2O3改性环氧胶黏剂和钢铁附着机理的研究

通过拉拔法测定纳米Al2O3改性环氧胶黏剂和钢铁之间的附着强度,并结合环氧胶的表面能参数测定以及X射线光电子能谱(XPS)分析,对纳米Al2O3提高环氧胶和钢铁附着力的机理进行研究.表面能测定结果表明,添加纳米Al2O3使环氧胶的极性增加；XPS能谱分析结果表明,当纳米Al2O3质量分数达到2%时,环氧胶中形成新的羧基极性基团；进一步研究发现,当纳米Al2O3质量分数为1%时未形成新的羧基基团,当纳米Al2O3质量分数为8%时单位接触面积上新的羧基基团的数目较2%时少,这与附着强度的变化规律是一致的.因此,纳米Al2O3改性的环氧胶黏剂与钢铁的附着强度的增强是由于Al2O3与环氧胶的相互作用形成了新的羧基极性基团．

[1] STURIALE A, VZQUEZ A, CISILINO A, et al. Enhancement of the adhesive joint strength of the epoxy:amine system via the addition of a resole-type phenolic resin [J]. International Journal of Adhesion and Adhesives, 2007, 27(2):156-164.
[2] JI Wei-gang, HU Ji-ming, LIU Liang, et al. Improving the corrosion performance of epoxy coatings by chemical modification with silane monomers [J].Surface and Coatings Technology, 2007, 201(8): 4789-4795.
[3] YANG Guo, FU Shao-yun, YANG Jiao-ping. Preparation and mechanical properties of modified epoxy resins with flexible diamines[J].Polymer, 2007, 48(1): 302-310.
[4] KINLOCH A J, LEE J H, TAYLOR A C. Toughening structural adhesives via nano-and micro-phase inclusions [J]. Journal of Adhesion, 2003, 79 (8/9): 867-873.
[5] KIM J K, HIM H S, LEE D G. Investigation of optimal surface treatments for carbon/epoxy composite adhesive joints [J]. Journal of Adhesion Science and Technology, 2003, 17(3): 329-352.
[6] NAGANUMA T, KAGAWA Y. Effect of particle size on the optically transparent nanometer-order glass particle-dispersed epoxy matrix composites [J]. Composites Science and Technology, 2002, 62 (9): 1187-1189.
[7] ZHAI L L, LING G P. The influence of nano-Al2O3 additive on the adhesion between epoxy resin and steel substrate [J]. Heat Treatment and Surface Engineering, 2004, 25(5): 1263-1266.
[8] GILBERT N E, HAYES S B, SEFERIS C J. Nano-alumina modified epoxy based film adhesives [J]. Polymer Engineering and Science, 2003, 43(5): 1096-1104.
[9] ZHAI L L, LING G P, LI J, et al. The effect of nanoparticles on the adhesion of epoxy adhesive [J]. Materials Letters, 2006, 60(25-26): 3031-3033.
[10] KINLOCH A J. Adhesion and adhesives science and technology [M]. London: Chapman and Hall, 1987: 29.
[11] MCCAFFERTY E. Acid-base effects in polymer adhesion at metal surfaces [J]. Journal of Adhesion Science and Technology, 2002, 16(3): 239-255.
[12] LI L, HE Z H, WANG W W, et al. Synthesis of amino-functionalized epoxy acrylate film by magnetic-filtered plasma stream [J]. Progress in Organic Coatings, 2006, 56(2-3):126-130.
[13] YU Z Y, MIELCZARSKI E, MIELCZARSKI J A, et al. Stabilization mechanism of TiO2 on flexible fluorocarbon films as a functional photocatalyst [J]. Journal of Molecular Catalysis A: Chemical, 2006, 260(1-2): 227-234.
[14] BENZARTI K, PERRUCHOT C, CHEHIMI M M. Surface energetics of cementitious materials and their wettability by an epoxy adhesive [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2006, 286(1-3): 78-91.
[15] JORDAN J L, SANDA P N, MORAR J F, et al. Synchrotron-radiation excited carbon 1s photoemission study of Cr/organic polymer interfaces [J]. Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films， 1986, 4(3): 1046-1048.
[16] ZHANG Y, WANG W J, FENG Q L, et al. A novel method to immobilize collagen on polypropylene film as substrate for hepatocyte culture [J]. Materials Science and Engineering C, 2006, 26(4): 657-663.
[17] LI J Q, HUANG Y D, XU Z W, et al. High-energy radiation technique treat on the surface of carbon fiber [J]. Materials Chemistry and Physics, 2005, 94(2-3): 315-321.
[18] NOESKE M, DEGENHARDT J, STRUDTHOFF S, et al. Plasma jet treatment of five polymers at atmospheric pressure: surface modifications and the relevance for adhesion [J]. International Journal of Adhesion and Adhesives, 2004, 24 (2): 171-177.
No related articles found!