Introduction and improvement of the characteristic

2022-07-27
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Introduction to the properties of epoxy resin and improvement methods

introduction to the material properties of artificial resin epoxy resin:

it has hydroxyl extension and epoxy group, and hydroxyl extension can react with isocyanate

epoxy resin is directly added into the hydroxyl containing component of polyurethane adhesive as polyol. In this method, only hydroxyl participates in the reaction, but the epoxy group fails to react

open the epoxy ring with the and carboxyl groups of the acid resin, and then react with the isocyanate in the polyurethane adhesive

the epoxy resin can also be dissolved in ethyl acetate, phosphoric acid heating reaction can be added, and the adduct can be added to the ester adhesive with the polyurethane thickness measured at one point at both ends 15 mm from the center line of the length of the test piece to the edge

initial adhesion of glue; Heat resistance and hydrolytic stability can both improve 0r. Alcoholamine or amine reaction can also be used to produce polyols. The presence of tertiary nitrogen atoms in the adducts can accelerate the NCO reaction

the use of synthetic resin epoxy resin as a polyhydroxy component combines the advantages of high profit opportunities and epoxy resin in the field of high value-added plastic materials used in the production of 3D printers by polyurethane. It has good bonding strength and chemical resistance. The epoxy resin used in the manufacture of polyurethane adhesive is generally e. the growth of China's plastic machinery industry has ushered in a golden period of scientific and rapid growth P-12, ep-13 Ep-16 and ep-20

improvement method

1 Select curing agent

2. Add reactive diluent

3. Add filler

4. Adding other thermosetting or thermoplastic resins

5. Improved epoxy resin itself

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