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Low shrinkage performance of epoxy plate

The performance of epoxy board is high temperature, insulation, mechanical strength and so on. But are you clear about its low shrinkage performance? I think a lot of friends will shake their heads gently and say, “I don’t know.” In fact, that is the purpose of writing this article today.

epoxy FR4 sheet

Low shrinkage performance of epoxy plate. Why on earth does epoxy board have good low shrinkage performance?

This has a great relationship with its molecular reaction. In general, the reaction between epoxy resin and all the curing agents is carried out by direct addition or the ring opening polymerization of the cyclooxygenate in the resin molecules, and almost no volatile substance is released during the whole reaction process. More importantly, compared with unsaturated polyester resin and phenolic resin. It shows a lower shrinkage during curing. After repeated data, its shrinkage resin is less than 2%.

Let’s take a look at the advantage of low shrinkage of epoxy panels.

(1) the appearance of the sheet is smooth, and there will be no bad conditions such as bubbles and delamination.

(2) longer service life. The appearance performance of the sheet is good. Naturally, the service life of the board is icing on the cake.

The above is a description of the low shrinkage performance of epoxy board. If you have something unclear or want to buy it? You are welcome to call for consultation.

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