What are the advantages and disadvantages of uv adhesive uv adhesive buying tips

UV adhesive is one of the adhesives, is in a special formula of resin to add photoinitiator (or photosensitizer), after some relatively cumbersome and complex process after the production of a kind of adhesive. uv adhesive in handicrafts, glass products, electronic and electrical industry, optical field, digital optical disk manufacturing industry, medical supplies and so on all aspects are applied. It is a very versatile adhesive. Since the use of such a wide range, then we should have a good understanding of this thing, such as understanding some of the advantages and disadvantages as well as purchase skills, these are very necessary.

What are the advantages and disadvantages of uv adhesives

UV adhesive advantages: 1. UV adhesive does not contain VOC volatiles, no pollution to the air. uv adhesive formula components in all environmental regulations to stop or constraints of very little, and solvent-free, flammability is very low. In line with safe storage and transportation regulations 2.UV adhesive curing speed is extremely fast, using different power UV curing equipment can be in a few seconds to a few minutes to fully cured, greatly improving the production efficiency of manufacturing companies. Very suitable for automated assembly line production, UV adhesive curing can be immediately after the bonding performance testing, product packaging and transfer shipments, saving the enterprise finished and semi-finished products occupy space. UV curing process using equipment generally low power, saving valuable energy. The use of UV curing adhesive energy consumption and heat curing adhesive compared to save energy ninety percent, and UV curing equipment structure is not complex, small footprint to save space in the workplace. 3. UV adhesive for a variety of environmental conditions and requirements can be flexibly applied, curing time and waiting time can be adjusted according to the needs of the curing degree of UV adhesive can be adjusted arbitrarily, and can be repeated multiple times Curing multiple times. To bring convenience to production management, UV curing lamps can be easily installed in the existing production line according to the actual changes in the situation, does not require large adjustments and changes, with ordinary adhesives can not be compared to the flexibility.

Disadvantages of UV adhesive: 1. UV adhesive raw material costs are generally higher, due to the composition of the low-cost solvents and fillers inside, so the UV adhesive than the general manufacturing cost of ordinary adhesives, the corresponding sales price is also high. 2. UV penetration of a portion of plastics or semi-transparent materials is not strong, the depth of the curing depth is limited to curing the object's geometry is subject to a certain degree of constraints, the part of UV radiation is not easily accessible. UV irradiation is not easy to one-time completion of the part of the opaque part is not easy to cure. 3. Ordinary UV adhesive can only bond some light-transparent materials, bonding opaque materials need to be integrated with other curing methods, such as cationic curing, UV heating double curing, UV moisture double curing, UV anaerobic double curing, etc..

UV adhesive purchase skills

The nature of the adhesive material

(1) metal: metal surface oxide film after surface treatment, easy to glue; due to the adhesive bonding metal two-phase coefficient of linear expansion is too large a difference, the adhesive layer is prone to internal stress; in addition to the metal adhesive parts of the role of the water is prone to produce galvanic corrosion.

(2) rubber: the greater the polarity of rubber, the better the adhesive effect. Nitrile chloroprene rubber polarity, bonding strength; natural rubber, silicone rubber and isobutyl rubber polarity is small, weak adhesive force. In addition, the surface of the rubber is often mold release agent or other free additives, hindering the effect of adhesive bonding, must be paired with WINBOND770 surfactant as a primer, to enhance the adhesive force.

(3) wood: a porous material, easy to absorb moisture, causing dimensional changes, which may result in stress concentration, and therefore must choose WINBOND fast curing series of glue. In addition, the polished material is better than the rough surface of the wood gluing performance.

(4) Plastic: Polar plastic with good gluing performance.

The above tips are adapted to all adhesives. We can buy according to the above explanation for reference, after determining the advantages and disadvantages of the product, and then according to their own needs to choose, choose in accordance with certain buying skills, I believe that in the end, we can pick the person's own satisfaction with the uv adhesive.