Packaging and Adhesives: How Polymers Enhance Adhesion and Coating Uniformity
Polymers, particularly amphiphilic copolymers, are integral to modern adhesive and coating formulations. Their unique structures enable them to stabilise emulsions, enhance compatibility across various systems, and improve overall film quality.
Whether aiming for high-performance applications or cost-effective solutions, understanding the role of these polymers is essential for formulators seeking to optimise their products.
Stabilising Emulsions and Dispersions
Amphiphilic copolymers possess both hydrophilic and hydrophobic segments, allowing them to effectively stabilise emulsions and dispersions. This stabilisation is crucial for maintaining consistent viscosity and preventing phase separation in adhesive and coating applications. Research has demonstrated the efficacy of these copolymers in stabilising complex emulsions, such as casein-based systems.
Compatibility with Aqueous and Solvent-Borne Systems
The versatility of copolymers extends to their compatibility with both water-based and solvent-based systems. Products have been formulated to be compatible with solvent-based coatings and adhesives, offering flexibility in formulation. Similarly, aqueous dispersions of polyolefins and block copolymers have been developed to meet the demands of water-based coatings .
Reducing Surfactant Load While Improving Film Quality
Traditional formulations often rely on high surfactant loads to stabilise emulsions, which can negatively impact film properties. The incorporation of amphiphilic copolymers can reduce the need for excessive surfactants, leading to improved film integrity and performance. Polymeric surfactants with high acid values can effectively stabilise emulsions, enhancing the quality of the final film.
Relevance to Products Like Acriflow in Adhesive Formulations
While advanced copolymers offer specialised functionalities, products like Acriflow serve as cost-effective dispersing agents in various formulations. Acriflow can be utilised in water-based systems to increase solids loading or reduce working viscosity, thereby enhancing process efficiencies and reducing costs.
In addition to supplying Acriflow as a proven dispersant, Witton offers toll manufacturing of bespoke or niche copolymer solutions for third parties. This includes more sophisticated amphiphilic systems designed for high-performance or specialist end-uses in adhesives, packaging, or coatings. Clients looking to develop their own unique formulation can leverage Witton’s technical expertise and production infrastructure to scale up reliably and compliantly.
If you require further information or assistance in selecting the appropriate polymer for your specific application, please feel free to reach out.