High Barrier Properties Vinyl Acrylic Lacquers

High Barrier Properties Vinyl Acrylic Lacquers Vinyl Acrylic resins account for 27% of the volumetric size of the Paint and Coating Industry in the World Market. In technical textile sectors where competition is accelerating with steady technological development and continuous cost increases, vinyl acrylic lacquers with diverse surface properties—including high UV resistance, high alcohol resistance, easy-to-clean characteristics, barrier properties, PVC compatibility, and ease of application—are required. The use of tarpaulins and billboards outdoors has established the need for high and durable barrier properties. Plasticizers used to reduce costs often lower performance as a negative effect. Generally, as the molecular weight of polymers increases, the complexity and intermolecular attraction force in the structure increase, and accordingly the mechanical and thermal properties of the polymeric structure, particularly its processability, electrical, optical and chemical properties change significantly. As molecular weight increases, the polymeric structure—especially its tensile stress, impact resistance, melting and softening temperatures, and thermal resistance—first increases rapidly, then remains unchanged and constant. Conversely, the melt viscosity of the polymeric structure first increases slowly and then rapidly. In other words, while the mechanical properties of high molecular weight polymer structures improve, their processability becomes more difficult. In commercial polymeric products that are both processable and have sufficient mechanical properties, molecular weights between 10⁴ and 10⁶ Da are desired. For synthetic polymers, products with molecular weights of up to 10 million daltons can be prepared. The molecular weights of natural polymers and biopolymers are well above these values. The reasons for using vinyl acrylic polymers are as follows: • Ability to form a proper film layer, • Hydrolysis resistance, • No yellowing, • Good adhesion properties, • Elasticity values, • High chemical resistance, • High UV resistance. Acrylic binders can be categorized in 3 different structures: • Styrene Acrylic – S/AC: The film is very hard and brittle. It cannot be used alone. It is used only as a copolymer. It is more resistant to scratching, rubbing and water. Its scratch resistance is good. It offers a slippery glossy film. • Vinyl Acrylic – V/AC: It is solvent-resistant. It forms a film on the surface. Its hiding power is good. It is not resistant to cold. • Acrylic Acrylic – A/AC: It forms an elastic and transparent film. It is resistant to light and oxidation. Its films are more adhesive, and its abrasion resistance is good. It has no yellowing tendency. As chain length and esterification increase, the softness and adhesiveness of the film increases. Despite this, its resistance to cold and moisture also increases. Innovative parameters of products developed by Interplast Chemicals R&D Center are as follows: • High strength, • High heat and temperature resistance, • Flexibility, • High migration properties, • Product drying rate compatible with the application system, • Matte or glossy finish in accordance with customer requirements, • High water resistance, • Solid content and viscosity values in compliance with the customer's working system. The most important technical property in meeting these parameters is ensuring that the molecular weights of the vinyl acrylics used and the Glass Transition temperature parameters are designed in accordance with rheology. Among products offered by Interplast Chemicals for this industry, solvent-based vinyl acrylic resins provide technical added value through their ability to work at high speed and excellent adhesion and spreading properties. Our products offered under the brand name LACANEX: Lale Şen Çetin R&D Center Manager İnterplast Kimya