- UV glue, also known as shadowless glue or UV curable glue, is a type of adhesive that can be quickly cured by exposure to ultraviolet light. It has the characteristics of fast curing, high strength, good transparency, and no solvent pollution, and is widely used in multiple industries such as glass, electronics, optics, automobiles, and jewelry. The curing principle is that ultraviolet light excites the photoinitiator in the adhesive, generating free radicals or cations to initiate monomer polymerization reactions, thereby achieving a rapid transition from liquid to solid state.
- Product Details
Characteristics of UV glue
Fast curing: It can cure quickly within seconds to a few seconds, greatly improving production efficiency.
High strength and reliability: High adhesive strength, good weather resistance and chemical stability after curing.
Excellent optical performance: The adhesive solution is colorless and transparent, with high light transmittance after curing, often referred to as "shadowless adhesive".
Environmental protection: It usually does not contain solvents and belongs to environmentally friendly adhesives.
Widely applicable: can bond various materials such as plastic, glass, metal, etc., and can also be used as coatings, inks, etc.
The curing principle of UV glue
Absorption of ultraviolet light: The photoinitiator in UV glue absorbs ultraviolet light.
Generating active groups: Photoinitiators generate active free radicals or cations.
Triggering polymerization reaction: The active functional group triggers the polymerization, crosslinking, and branching chemical reactions of the monomer.
Rapid curing: The adhesive transforms from a liquid state to a solid state in a short period of time.
Precautions for use
Transparency requirement: The curing of UV glue requires ultraviolet light to penetrate the material being bonded, so at least one side of the material must be transparent.
Avoid light exposure: During storage and operation, avoid exposure to sunlight or artificial light sources.
Surface treatment: Before use, clean the oil stains and impurities on the surface to be bonded to ensure the bonding effect.