The performance of optical adhesive will directly affect the display effect and usability of the touch screen, so the selection of optical adhesive is very important when fully adhering. On the market, various optical adhesive materials have different properties and have their own advantages and disadvantages during use. Customers need to choose according to the bonding equipment and technology used in their respective products, product size and shape, materials used for bonding, surface condition, and performance. Therefore, it is particularly important to distinguish the advantages and disadvantages of optical adhesive properties, match them with the bonded products, and achieve excellent performance.

Judging the pros and cons

The performance of optical adhesives can usually be evaluated from the following aspects:

1. The appearance of optical adhesive materials: whether they are colorless and transparent, whether there are foreign objects, whether there is material color difference, etc;

2. Adhesive performance: Whether the adhesive performance of the product's bonding surface is good;

3. Matching of fitting process: Select the appropriate optical adhesive according to the equipment and process;

4. Weathering resistance and yellowing resistance advantages and disadvantages: Compare the changes in adhesive strength, transmittance, and yellowing index of optical adhesive products before and after aging;

5. Repairable performance: whether the overflow is easy to clean and the difficulty of rework;

6. Storage stability of products: Pay attention to storage conditions and shelf life;

7. Environmental performance requirements: Low VOC and low toxicity products are preferred.