There are many types of adhesives, and they are all used to bond different materials. Of course, different adhesives have different methods of use, only choose the right method, your adhesive can better play a role in bonding, at the same time, we have to pay attention to some of the problems when using. So today, I want to introduce you to the use of shadowless adhesive and some notes. Before this, I first briefly introduce you to the specific what shadowless glue.
Shadowless adhesive, also known as UV adhesive, photosensitive adhesive, ultraviolet light curing adhesive, shadowless adhesive is a must through ultraviolet light irradiation in order to cure a class of adhesive, it can be used as a bonding agent, but also as paints, coatings, inks and other adhesive use. UV is the abbreviation of the English Ultraviolet?Rays, that is, ultraviolet light. Ultraviolet (UV) is invisible to the naked eye, is a section of electromagnetic radiation other than visible light, wavelengths in the range of 110 ~ 400nm. Shadowless adhesive curing principle is UV?curing material in the photoinitiator (or photosensitizer) in the ultraviolet irradiation of ultraviolet light absorption of ultraviolet light to produce reactive radicals or cations, triggering the monomer polymerization, cross-linking chemical reaction, so that the adhesive in a few seconds from the liquid state into a solid state.
Shadowless adhesive use:
The first step, surface treatment: according to the specific material treatment, the surface is dry and clean, no weak boundary layer;
The second step, coating shadowless adhesive: continuous coating of shadowless adhesive, do not dispersion;
The third step, the light positioning: a short period of time, low radiation, gently pushed by hand;
The third step, light positioning: short period of time, low radiation, gently pushed by hand;
The fourth step, the shadowless adhesive: continuous coating shadowless adhesive, don't disperse;
The fourth step, remove the overflow of shadowless adhesive: knife scraping, soft cloth, paper towel gently wipe off the overflow, can be dipped in acetone alcohol;
The fifth step, the shadowless adhesive is fully cured: a long time of high radiation until fully cured, pay attention to the temperature should not be too high;
The sixth step: cleaning: a soft cloth/paper towel dipped in acetone alcohol gently wiped test.
Notes on the use of shadowless adhesive:
1, the surface of the object to be glued to be clean, there can be no oil and debris.
2, the glue drops on the surface of the object, and then close tight so that the glue is evenly filled with adhesive surface, in the sun or away from the blue UV lamp 5cm under the irradiation.
3, shadowless adhesive want to get dry curing effect, must be in oxygen-free conditions, with high intensity in the wavelength of 365nm blue ultraviolet radiation curing.
4, different materials require different curing time,? Such as aluminum metal relative to stainless steel adhesive glass time is longer, because different materials can accelerate or delay the curing time. Because different materials can accelerate or delay the curing time required.
5, this product is a stimulus, must be avoided direct contact, such as accidentally touching the skin or eyes, please be sure to wash with water or soapy water, do not use solvents to clean.
Benefits Edit Environment/Safety
●? No VOC volatiles, no pollution to ambient air;
●? Adhesive components are less restricted or banned in environmental regulations;
●? No solvent, low flammability
Economy
●? Fast curing speed, a few seconds to tens of seconds to complete the curing, conducive to automated production lines, improve labor productivity
●? After curing, it is ready for inspection and transportation, saving space
●? Room temperature curing saves energy, for example, the energy required to produce 1g of light-curing pressure sensitive adhesive is only 1% of the corresponding water-based adhesive and 4% of the solvent-based adhesive. It can be used for materials that are not suitable for high-temperature curing, and the energy consumed for UV curing can save up to 90% of energy consumption compared with heat-curing resins ●? Simple curing equipment, only need lamps or conveyor belts, saving space
●? One-component system, no mixing required, easy to use
Compatibility
●? Can be used with temperature, solvent and moisture sensitive materials
●? Controlled curing, adjustable waiting time and adjustable degree of cure
●? Repeatable sizing for multiple cures
●? The UV lamps can be easily installed in existing production lines without major modifications
Application Areas
Craft Glass
●? Glass products, glass furniture, electronic scale bonding
●? Crystal jewelry craft products, fixed inlay
●? Transparent plastic craftwork bonding, PMMA/PS
Electrical and electronic appliances
●? Coating and sealing of terminal blocks/relays/capacitors and microswitches
●? Printed circuit board (PCB) pasting of surface components
●? Bonding of integrated circuit blocks on printed circuit boards ●? Fixing of coil wire terminals and bonding of components
●? Wire bonding to interfaces or boards
Optical field
●? Optical fiber bonding, optical fiber coating and protection, and repairing connections
Digital optical discs
●?CD/CD-R/CD-RW manufacturing, mainly used for reflective and protective film coating
●?DVD substrate bonding, and UV curable adhesives are used for sealing covers for DVD packaging
Medical products
●?Subcutaneous needles and syringes
●?Medical products
●?Medical products
●?Medical products
●? Bonding of hypodermic needles to syringes, IV tubing, use of urinary catheters and medical filters
●? Respiratory systems, butterfly devices and masks, intravenous catheterization devices, oxygenators, water reservoirs, electronic diagnostic devices and other medical equipment.