Introduction

Moisture-curable hot-melt adhesive (HM-PUR) acrylic resin BM66 is a specialized chemical compound with unique properties that make it suitable for various adhesive applications. Its Cas No is 25608-33-7. This resin combines the advantages of acrylic resin and moisture-curable technology, offering a versatile solution for bonding and sealing needs.

Chemical Composition and Structure

Acrylic resin BM66 is an acrylic-based polymer specifically designed for HM-PUR applications. It possesses a specific chemical structure that allows it to react with moisture or active hydrogen compounds in the air or on the surface of adherends, forming a partially cross-linked structure. This cross-linking enhances the adhesive strength and durability of the bond.

Moisture-Curable Characteristics

A key feature of BM66 is its moisture-curable property. When exposed to moisture, the resin undergoes a chemical reaction that leads to the formation of a cross-linked network. This reaction is facilitated by the presence of specific functional groups within the resin's molecular structure. The cross-linking process enhances the resin's adhesive properties, making it more resistant to environmental factors such as heat, water, and solvents.

Application and Performance

BM66 is widely used in HM-PUR applications due to its excellent adhesive properties and durability. It offers fast fixation and strong initial adhesion, making it suitable for bonding a variety of materials including metals, plastics, woods, and textiles. Additionally, it exhibits good temperature resistance, withstanding temperatures ranging from -50 to 120°C. The resin also demonstrates excellent water and solvent resistance, ensuring that the bonds remain strong and durable even in harsh environments.

Safety and Handling

Like any chemical product, acrylic resin BM66 requires proper handling and storage to ensure safety. It should be stored in a cool, dry place away from heat and flammable materials. When handling the resin, personal protective equipment such as gloves, goggles, and respiratory protection should be worn to prevent skin and eye irritation or inhalation of harmful vapors. In case of contact with skin or eyes, immediate medical attention should be sought.

In conclusion, moisture-curable hot-melt adhesive (HM-PUR) acrylic resin BM66 is a versatile and high-performance adhesive material. Its unique chemical composition and moisture-curable properties make it suitable for a wide range of bonding and sealing applications, offering strong adhesion, durability, and resistance to environmental factors. Proper handling and storage practices are essential to ensure the safety and effectiveness of this product.