How to choose the right hot pressing inlay resin? And listen to Ke Mai's editor explain:

     After the material can be heated and pressurized for preparation, the next step is to choose which hot pressing inlay resin to use. The decisive factors for selection are still the characteristics of the material and the purpose of the experiment.

     We will summarize how to choose the correct hot pressing inlay resin for commonly used materials and common experimental purposes as follows:

     1. For ordinary materials and conventional experimental purposes, saving sample preparation costs can be considered as the top factor.

Choose QMAXIS phenolic resin PhenoPowder. This is a thermosetting phenolic resin filled with wood powder. You can choose black or red phenolic resin based on the color of the sample. Curing temperature: 176 ℃, pressure: 290bar, edge protection: good, transparency: opaque, hardness: about 88 Shore.

    2. Materials with high hardness require the edges of the sample to remain intact, and even require corrosion resistance during sample preparation in the later stage.

So, we should choose epoxy resin EpoPowder G with better wear resistance, such as QMAXIS. This is a thermosetting epoxy resin filled with glass. G is the initial letter of Granular, which means that the resin is granular, loose, and does not stir up powder when filled. Curing temperature: 176 ℃, pressure: 290bar, edge protection: excellent, transparency: opaque, hardness: about 94 Shore.

     3. In addition to the requirements of Article 2, if the material is of complex geometric shape or has interfaces such as coatings or coatings.

So, QMAXIS (Kemai) powder epoxy resin EpoPowder F should be chosen. It is also a thermosetting epoxy resin filled with glass. F is the initial letter of Fine, and the inclination angle should be smaller and slower during loading to minimize splashing. The parameters are the same as above, and the prepared inlay block should be more refined. The next step is to select this resin for high-temperature treatment or corrosion liquid immersion tests.

    4. If the hardness of the material is not high and the sample is expected to have good visibility during grinding and polishing.

The TransPowder for QMAXIS should be selected. This is thermoplastic acrylic resin. Curing temperature: 200 ℃, pressure: 345bar, edge protection: good, transparency: transparent, hardness: about 80 Shore.

Precious metals, jewelry, and samples that need to be taken out again after observation can also be selected using acrylic resin TransPowder, which can be heated and taken out.

     5. Materials with higher hardness require corrosion resistance during later preparation, and the next step is to test the hardness of the samples.

Please select the QMAXIS (pulse capable) versatile MelaPowder. This is a mineral filled thermosetting melamine resin. Curing temperature: 176 ℃, pressure: 290bar, edge protection: excellent, transparency: opaque, hardness: about 95 Shore. The white surface performs perfectly in hardness comparison testing.

     When preparing samples for SEM and TEM analysis, if copper is not the analysis object.

The copper conductive filler CopperPowder from QMAXIS should be chosen. This is a phenolic resin with copper and minerals added. Very appropriate.

    If the sample is also prepared for SEM and TEM analysis, if carbon is not the analysis object.

Then choose the carbon conductive filler GraphPowder from QMAXIS. The main material is still phenolic resin, with the addition of graphite and minerals, which conduct electricity.

     Next issue preview: QMAXIS (Kemai) metallographic specimen inlay technology exchange - tips for preparing metallographic specimens by hot pressing inlay. Stay tuned!