The Spanish Adhesion and Adhesives Group and the Materials Service Behaviour Group of the Carlos III University of Madrid have published a document of great value for the sector. The summary publication of the Congress contains 23 interesting articles, together with their corresponding experimental procedures and their conclusions. Following we summarize and outline articles 13-23, since we consider them of great value for the sector to which they refer, and an interesting look at the advances, the present and the future of adhesive solutions.
To consult the rest of the articles, together with an enlarged extension of the 19th Adhesion and Additives Congress, consult https://bit.ly/2wYQTGV
13 – Graphene silanization: improvement of dispersion and its effectiveness as a reinforcing agent
A graphene silanization process has been developed and evaluated through a silane agent: 3-methacryloxypropyl trimethylisilane (MPS) with the aim of improving the dispersion of graphene in acrylic matrix adhesives. The results show a successful silanization of graphene that leads to a substantial improvement of its dispersion within the acrylic matrix.
14- Effect of the curing temperature on the mechanical behaviour of an epoxy adhesive against temperature
It is intended to study how the mechanical properties of the adhesive are affected by the test temperature, after curing at different temperatures, as well as its relationship with its Tg.
15- Viscosity control technology for dual-component epoxy systems
Viscosity is a key factor for the optimal results of applications of adhesives and sealants based on rheological additives. Not only is it important to thicken the material, but it must also be easy to apply and use. This study proposes different tests to analyze the behaviour of the components of epoxy systems and proposes, among others, the use of rheological enhancers and the new VCT technology to obtain benefits throughout the supply chain.
16- Optimization of the manufacturing process for the design of composite steel multi-materials
It addresses different aspects of the optimization of the manufacturing process of thermostable compounds – steel components, depending on the speed of the process, the strength of the joints and the performance against corrosion.
17- Manufacture and testing of a new CFRP node bonded by adhesives for use in bus structures
The current bus structures have great problems of fatigue due to their rigidity, often resulting in unwanted breakages. This work is part of a project that seeks to give greater structure elasticity by using a new CFRP node bonded to the steel structure by means of polyurethane adhesives.
18- Predominance of surface adhesion versus consolidation in the conservation of bone and fossil biomaterials
This study demonstrates the benefits of surface adhesion methods versus consolidation treatments in cases of healing and restorative treatments, such as cleaning, adhesion or consolidation processes in bone and fossil biomaterials.
19- Effect of APPT treatment on the durability of biocompounds reinforced with unidirectional woven linen
The growing interest in natural fibres due to their mechanical properties and biodegradable uses, among others, leads us to analyze the effect of treatment with atmospheric plasma torch (APPT) on the adhesion between the different matrices and the linen fabric in aging conditions.
20- The effect of Temperature and Relative Humidity on adhesive joints in the photographic mounting system
Adhesives are widely used in artistic photography and photographic laboratories, just like silicone. This study analyzes the best combinations of materials to avoid problems of stability or recovery of images in the photography sector.
21 – Reinforcement of fragile ornamental materials: adhesion with thermoplastic matrix composites
The main objective of this work is to provide an economic solution, easy to implement and effective to increase the resistance to impact of ornamental materials that have low tenacity. More specifically, thermoplastic matrix composites with fibreglass are used to reinforce marble.
22- Simplification of the test programme of adhesive joints by factorial design
This essay shows a simplification of the testing programme of adhesive joints from eight protocols. It concludes that incomplete factorial design is a very powerful tool for the analysis of adhesive joints by analyzing the interactions between the different variables of the joint.
It is observed, in the case of flexible adhesives, that the most important parameter is the thickness of the adhesive, but there is also a significant influence between the length and the width of the adhesive bond. A more detailed analysis of the tests confirms that the maximum resistance is obtained when these parameters are equal.
23- The role of adhesives in additive manufacturing
In the present article a review of the different additive manufacturing techniques is presented and the general bases of these techniques are mentioned, showing the importance of adhesives and the adherence phenomena in the process of construction of parts. The steps of processing the pot for the different technologies are mentioned. The role of adhesives in post-processing steps can be critical for the proper functioning of the printed part.
If you are interested in receiving the complete publication, courtesy of the Spanish Adhesion and Adhesives Group and the Materials Service Behaviour Group of the Carlos III University of Madrid, you can request the document by email from marketing@concentrol.com
