One is epoxy resin, which is a general term for polymer […]
The second is the curing agent of epoxy resin. There are several types of amines, acid anhydrides, and resin compounds. Among them, amine compounds are the most commonly used. They can be divided into aliphatic amines, aromatic amines and modified amines.
The third is the diluent. The epoxy resin is usually diluted with inactive diluents such as ethanol, acetone, benzene, toluene, xylene, etc. According to the Tianjin epoxy board manufacturer, the two inactive diluents can be mixed, sometimes for Reactive diluents such as propylene oxide butyl ether, propylene oxide phenyl ether, polyglycidyl ether, etc. are also used to reduce the shrinkage of cured products, reduce pores and cracks.
Fourth, plasticizers and tougheners. Simple epoxy resin is more brittle after curing, and has poor impact toughness, bending strength and heat resistance. Plasticizers and tougheners are commonly used to increase plasticity and improve toughness of the resin. , Improve bending strength and impact toughness.
The fifth is filler. Powder, fine aggregate, coarse aggregate, and glass flakes are collectively referred to as filler. Adding appropriate fillers can reduce the cost of the product and improve its performance. The amount of filler in the glue is generally the amount of resin 20-40% (weight) of the putty, the amount can be more when preparing the putty, generally 2 to 4 times the amount of the resin, the commonly used powders are quartz powder, porcelain powder, in addition to graphite powder, diabase Powder, talcum powder, mica powder, etc.