UV adhesive thickness and uniformity measurement

In the actual use of UV adhesive, it is very important to test the performance of the glue. Because UV adhesive in the process of dispensing and gluing, there may be uneven thickness, end glue and dripping glue, which will lead to the glue in the process of laminating bubbles and overflow phenomenon, and in the process of UV curing bubbles or not fully cured. In screen bonding applications, these problems can lead to more serious consequences, such as glare, yellowing and other display problems.

Therefore, in order to ensure the uniformity and consistency of UV adhesive dispensing coating, it is necessary to use optical measurement system to monitor the thickness and consistency of the coating.

But in the process of testing, due to the high transparency of UV glue, so in the use of optical measurement needs to solve the problem of reflection. And the amount of UV glue needs to be accurately controlled, the use of micron or even submicron level measurement technology to ensure the accuracy of measurement data.

Regarding the specific testing steps, AVENTK, as a UV adhesive manufacturer, has also sorted out the basic testing steps for you. If you are interested, read on!

Steps of measurement

The steps to measure the colloid thickness and uniformity of UV adhesives are as follows:

1. Fix the fixed point glue sample to FocalStation measuring platform and carry out mechanical origin return;

2. Set scanning parameters in the FS software, start scanning, and wait until the task is complete.

3. Data pretreatment, including leveling, optical noise reduction, etc.;

4. View analysis and report: through 3D view, you can view the complete 3D morphology of UV glue colloids.

5. The cross section tool can be used to obtain the cross section and longitudinal section of the colloid sample respectively. The cross section is used to analyze the thickness of the colloid, and the longitudinal section is used to analyze the uniformity and consistency of the colloid.

Ask AVENTK for questions about UV adhesives

Over the years, AVENTK has been committed to providing customers with high quality, fast adhesive curing solutions that meet the requirements of strict environmental protection and industrial automation.

Our products include UV-curable glue, low-temperature thermosetting glue, hot melt glue, catalyst curing glue and UVLED curing equipment for camera modules, security products, PCBA coating, loudspeakers, electronic assembly, medical, optical fiber devices, printing, inkjet and other industries.

AVENTK works hand in hand with customers to provide customized solutions, which are carefully discussed, designed and repeatedly verified with each customer to ensure that the final product not only meets the performance requirements of the specific application, but also integrates into the customer's process flow to solve the problem in a simple and efficient way.