Easmer amine-based additives drive the performance upgrade of adhesives and sealants.
Release time:
2021-11-12
Easmer's latest amine-based additives can effectively enhance the adhesion and durability of adhesives and sealants, providing more reliable bonding and sealing solutions for various industries such as automotive, electronics, and construction.
The main characteristics of cationic photoinitiators include photoactivation, proton acid generation, and initiation of cationic polymerization. Cationic photoinitiators absorb photons under UV or visible light, exciting the molecules to a higher energy state, followed by a series of decomposition reactions that ultimately produce proton acids (Brønsted acids or Lewis acids). These acids act as active species for cationic polymerization, capable of initiating the polymerization of epoxides, vinyl ethers, lactones, aldehydes, and cyclic ethers.
Applications of cationic photoinitiators
Cationic photoinitiators are widely used in various fields, including but not limited to:
Epoxy resins: Used in the manufacture of electronic components, coatings, and adhesives.
Vinyl ether resins: Used in the manufacture of plastics and composites.
Lactones, aldehydes, cyclic ethers: Used in the manufacture of high-performance materials and specialty chemicals.
Classification of cationic photoinitiators
Based on chemical composition, cationic photoinitiators can be classified into the following categories:
Iodonium salts: Have high photosensitivity and stability.
Sulfonium salts: Suitable for various substrates with good solubility and reactivity.
Boron salts: Suitable for specific polymerization reactions with high catalytic efficiency.
These classifications allow cationic photoinitiators to adapt to different application needs and exhibit excellent performance under specific conditions.
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2025-12-22
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