What are the characteristics of epoxy resin compared with polyketone resin

Phenolic resin refers to the use of phenols (phenol). There are no small molecule by-products in the curing reaction of epoxy resin. If there are other active groups on the side chain, these groups will also react under appropriate conditions. Polycondensation reaction has small molecule by-products. The curing reaction is also dominated by polycondensation. The active groups at both ends are mainly used in application. Of course, carboxyl groups will produce small molecule volatiles such as water. Brother, electrical properties Well, polyester resin is mainly obtained by polycondensation of dibasic acid and dibasic alcohol. It can also be cured by ultraviolet light. There is no small molecule by-product and the curing shrinkage is small. Your proposition is too big, such as epoxy group, so it shows high chemical activity.

Epoxy resin refers to the resin containing epoxy group in the molecular structure. I suggest you find a book to have a good look. In terms of molecular structure, it is called the resin obtained by polycondensation of polyester resin and o-cresol) with aldehydes (formaldehyde). It has good bonding effect. It mainly forms cross-linking and curing by double bond ring opening reaction, because the molecular structure contains mostly ester bonds and hydroxyl groups. Vinyl resin refers to the resin with - C = c-vinyl structure in the molecular structure. Contains phenolic hydroxyl groups. Its side chain can be connected with different groups through chemical reaction, which is very unstable and can be further polycondensated.

1. Used in polyamide ink system, it can improve pigment dispersion, increase gloss, adhesion, leveling and quick drying, and can replace the equivalent polyamide resin. It is recommended to add 10% - 15% in the whole system.

2. Used in polyurethane ink system, it can improve gloss, adhesion and cooking resistance, and can replace the equivalent PU resin. It is recommended to add 10% - 15% in the whole system.

3. Used in nitrocellulose ink system, it can improve gloss, adhesion, flexibility, pigment wettability, etc., and can replace the equivalent NC resin. It is recommended to add 15% - 55% in the whole system.

4. Used in chlorinated polypropylene ink system, it can improve pigment dispersion, increase composite strength, etc., and replace the equivalent chlorinated PP resin. It is recommended to add 15% - 20% in the whole system.