How to screen fine white water-based aluminum silver paste?

Categories:Industry news
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Time of issue:2022-01-07 17:37
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(Summary description)For water-based aluminum silver paste, its appearance effect can be roughly divided into several categories: imitation electroplating effect, fine white effect and flashing effect, and their different effects correspond to different industry needs. Today we mainly talk about how to filter the water-based aluminum silver paste with fine white effect?

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How to screen fine white water-based aluminum silver paste?

Categories:Industry news
Author:
Origin:
Time of issue:2022-01-07 17:37
Views:

Information

For water-based aluminum silver paste, its appearance effect can be roughly divided into several categories: imitation electroplating effect, fine white effect and flashing effect, and their different effects correspond to different industry needs. Today we mainly talk about how to filter the water-based aluminum silver paste with fine white effect?

First of all, from its literal meaning, we can see that its characteristics are thin and white. Fine mainly means that the particle size of the water-based aluminum silver paste is relatively small, and the corresponding covering power will be better; white is because the particle size of the aluminum powder is relatively small, the metal texture is not very strong, but it can show the characteristics of white and bright. Therefore, if you need fine white water-based aluminum-silver paste, you generally need to screen from the water-based aluminum-silver paste with small particle size.

There are several issues that need special attention in the process of screening fine white water type aluminum silver paste:

1. Dispersibility of water-based aluminum silver paste

Because many customers want to directly add the water-based aluminum-silver paste to the base material in order to ensure the performance of the base material, skip the pre-dispersion step of the water-based aluminum-silver paste. At this time, the dispersibility of the water-based aluminum-silver paste The requirements are relatively high, and the quality of the dispersion will also affect the quality of the silver platoon, so this one must attract everyone's attention.

Second, the stability of water-based aluminum silver paste

Since it is difficult to make fine white water-based aluminum silver paste, it is necessary to carry out stable thermal storage testing in the selection process to ensure that the storage period of the product can meet its own requirements. The detection method is also relatively simple. The prepared water-based silver powder paint is sampled and placed in a 50° constant temperature oven for thermal storage test. Generally, there is no obvious flatulence, gelation and other adverse phenomena in the comparison standard sample for about 7-14 days, and the corresponding normal temperature storage time can reach 6-12 months.

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