VW Applied Sciences, Volume: 2, Issue: 1, 74-86
Received: April 04, 2020
Accepted: April 07, 2020
Published online: April 10, 2020
Muhammad Dawood Bukhari1, Ghulam Abbas Gohar1, Awais Akhtar2, Sana Ullah2, Muhammad Akram1, Jawad Abid1, Hassan Raza2*
1Department of Mechanical Engineering, COMSATS University Islamabad, Sahiwal Campus, Pakistan
2Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong
*Corresponding Authors Email: hassan.raza@connect.polyu.hk, Tel: +85255190485
Abstract: Adhesive bonding is getting more attention for research and considered as most promising and well-known technique for joining the two materials which may be similar or dissimilar naturally polymers, metals, etc., and to be utilized in light weight structures for reduced stress distribution. Adhesion bonding consisting on intrinsic bonding force which plays vital role to make the joint withstand more strength. To fabricate an effective griped joint between the components, good adhesion strength is compulsory attainment factor for long life of structures. Recently, along with metallic materials polymers and their composites are also trending in multiple industries. All materials always have forces of attraction between their atoms/molecules which extremely crucial role to ensure stronger bond strength and often dependent on roughness of surface of material which are taking part to fabricate the joint. Consequently, surface roughness and surface morphology are most important parameters to decide the joint strength and life of bonded joints of polymeric composites. In this review article, mechanical interlocking mechanism, surface roughness effects on wettability, surface energy estimation and various bonding theories including adsorption theory, diffusion theory, boundary layer theory and chemical theory are discussed briefly to emphasize the various technological & industrial developments
