Successful adhesive bonding requires precise control of the physical and chemical properties of a vanishingly small volume of material: the first few molecular layers that surround the interface. This in turn requires developing a sensitivity to the factors that affect this region as well as imposing effective process control protocols. This seminar will review the requirements for high-performance surface treatment processes, strategies for developing these processes for new material systems, and protocols for control of these processes after implementation in manufacturing.
– Basic principles of adhesive bonding for joining composite structures
– Common composite surface preparation methods, their advantages and disadvantages
– Development of surface treatment processes: how to evaluate and optimize performance
– Deployment of adhesive bonding processes in manufacturing: how to ensure control to achieve consistent bond performance
Cleanliness in product finishing is critical for several reasons. For example, particulates generated in casting and machining processes must be effectively removed to prevent premature wear of sliding and rotating parts. Because of this, one of the final steps in component manufacture is the cleaning process. Washer systems can be quite effective at removal of particulate contaminants. However, performance of bonding, coating, and finishing operations are not dependent on particulate removal efficiency, but rather on the chemical cleanliness of the surface. These processes depend on being able to establish a strong and stable interface with the part surface, which requires establishing and controlling surface cleanliness on a molecular level. This trend toward high-performance adhesive bonding and coating is forcing a reevaluation of the performance of parts washers.
• The meaning of surface cleanliness which goes beyond particulates.
• Quantifying parts washers
• How to measure surface cleanliness
• Establishing strong interfaces that are ready for successful adhesion
The success of bonding and printing to thermoplastics depends on effective control of a remarkably thin zone on the surface of a polymer. Seemingly subtle changes in processing or composition can result in dramatic changes in the surface properties that control adhesion and product quality. This webinar discusses the fundamentals of adhesion and relates this to surface engineering of thermoplastics via techniques such as flame, corona, and plasma treatment. The effects of surface active additives are presented along with techniques for detecting their presence and understanding their effects on adhesion. Practical strategies for process development and process control are presented in a way that provides participants with useful tools for improving product quality and consistency
- The nature of thermoplastics and why understanding and controlling the surface is important for bonding.
- The fundamentals of adhesion on polymers and how to optimize flame, corona, and plasma treatments.
- Detecting contaminants on the surface that could be detrimental to adhesion.
- Useful strategies for process development and process control to improve product quality and consistency.
This webinar delves into the challenges manufacturers face when establishing a bond. The success of printing, painting, sealing, or coating relies on the ability to control the bond surface. BTG Labs’ Surface Analyst uses contact angle measurements to provide insight into the cleanliness level of a surface. This shows the manufacturer how prepared a surface is for bonding.
The Webinar Answers these 4 Questions about Optimizing the Bonding Process:
- Why it’s important to know the condition (contact angle) of incoming material, whether it’s from a supplier or out of a parts washer.
- Why it’s necessary to know how your material responds to processing, i.e. plasma, etc.? Is the in-place processing treatment actually cleaning your product’s surface like it should?
- How long does the processing treatment last until it is no longer effective?
- What is the appropriate contact angle to guarantee performance
This interactive tutorial provides a comprehensive look at common industry practices, including typical surface preparation methods for composites and an overview of the basic scientific principles involved in measuring surface energy and how it relates to material performance in manufacturing and repair. This presentation will focus on universal methods and techniques used to measure and achieve durable and consistent surface preparation in manufacturing across all industries. Ensuring surface condition and consistency is a vital component for guaranteeing success in sealing, coating, bonding, painting, printing or cleaning.
- Common surface preparation methods and techniques for composite substrates.
- What is surface energy and why is it important to maintain and understand it in manufacturing.
- How to measure surface energy in a manufacturing or repair environment.
- Using surface energy measurements to modify surface energy, determine process optimization, and perform quality assurance.
The interactions between a bond surface and an adhesive that determine the strength and reliability of a bonded structure occur in a zone that is perhaps 1 nanometer thick. This interactive tutorial provides a comprehensive look at the characteristics of a bond surface that determine bond performance, how to establish these characteristics through surface preparation, and how to quantify them for quality assurance. We will review common industry practices, including typical surface preparation methods for composites and an overview of the basic scientific principles involved in measuring surface composition and surface energy and how these relate to material performance in manufacturing and repair.