Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Mar 4;15(5):1929.
doi: 10.3390/ma15051929.

The Effect of Surface Substrate Treatments on the Bonding Strength of Aluminium Inserts with Glass-Reinforced Poly(phenylene) Sulphide

Ashish Matta  1 , Tomas Sedlacek  1   2 , Marketa Kadleckova  2   3 , Anezka Lengalova  2   4
Affiliations

The Effect of Surface Substrate Treatments on the Bonding Strength of Aluminium Inserts with Glass-Reinforced Poly(phenylene) Sulphide

Ashish Matta et al. Materials (Basel). .

Abstract

Materials composed of a polymer matrix reinforced with carbon/glass fibres providing lightweight and superior mechanical properties are widely used as structural components for automotive and aerospace applications. However, such parts need to be joined with various metal alloys to obtain better mechanical performance in many structural elements. Many studies have reported enhancements in polymer-metal bonding using adhesives, adhesive/rivet combined joints, and different surface treatments. This study investigated the influences of various surface treatments on the adhesion between glass-reinforced poly(phenylene) sulphide (PPS) and aluminium alloy during the injection over-moulding process. Adhesion strength was evaluated via the shear test. Correlations for the shear strength of the polymer-metal with different metal-substrate treatments were studied. Since the strongest bonding was attained in the treatment with the highest roughness, this value, as it determines the level of micromechanical interlocking of connected materials, seems to be a critical factor affecting the adhesion strength. Three-dimensional (3D) topographic images characterized with a 3D optical microscope indicated that there was a meaningful influence exerted by the interface topologies of the aluminium substrates used for the over-moulding process. The results further indicated that increases in a substrate's surface energy in connection with atmospheric plasma treatments negatively influence the final level of the bonding mechanism.

Keywords: PPS–aluminium bi-component; polymer–metal bonding; surface modification.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Scheme for the atmospheric pressure plasma system by Diener Electronic [15].
Figure 2
Figure 2
Shear test specimen: (a) real picture—top view; (b) side-view sketch.
Figure 3
Figure 3
Scanning electron microscopy (SEM) images of the surfaces of the (a) untreated, (b) chemical 1, (c) chemical 2, (d) plasma, (e) sandblasting, and (f) sandblasting + plasma inserts.
Figure 4
Figure 4
Bonding strength vs. surface roughness.
Figure 5
Figure 5
Three-dimensional (3D) images of Al substrate surfaces obtained with a 3D optical microscope.
Figure 6
Figure 6
Bonding strength vs. contact angle.
Figure 7
Figure 7
Surface energy vs. bonding strength.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Li X., Liu F., Gong N., Yang C., Wang B. Surface Topography Induced High Injection Joining Strength of Polymer-Metal Composite and Fracture Mechanism. Compos. Struct. 2018;184:545–553. doi: 10.1016/j.compstruct.2017.10.020. - DOI
    1. Martinsen K., Hu S.J., Carlson B.E. Joining of Dissimilar Materials. CIRP Ann. Manuf. Technol. 2015;64:679–699. doi: 10.1016/j.cirp.2015.05.006. - DOI
    1. Mandolfino C., Lertora E., Gambaro C. Key Engineering Materials. Volume 554–557. Trans Tech Publications Ltd.; Bach, Switzerland: 2013. Effect of Surface Pretreatment on the Performance of Adhesive-Bonded Joints; pp. 996–1006.
    1. Xu Z., Li N. Effects of Surface Microstructure and Molding Parameters on Injection Bonding Strength of Polyphenylenesulphide-Aluminum Alloy. Mater. Express. 2020;10:640–647. doi: 10.1166/mex.2020.1688. - DOI
    1. Iqbal H.M.S., Bhowmik S., Poulis J.A., Benedictus R. Effect of Plasma Treatment and Electron Beam Radiations on the Strength of Nanofilled Adhesive-Bonded Joints. Polym. Eng. Sci. 2010;50:1505–1511. doi: 10.1002/pen.21628. - DOI

LinkOut - more resources