Epoxy resin anti-corrosion materials are mainly composed of epoxy resin materials. The main characteristics of epoxy resin are high bonding strength, low shrinkage, high product brittleness and high price. Now, Suzhou Boreida, a brominated epoxy resin manufacturer, will tell you about the composition of epoxy resin.
First, epoxy resin, a general term for polymers containing epoxy groups, is mainly suitable for medium with low corrosivity. It has outstanding alkali resistance and can also resist the corrosion of ordinary acids (except hydrofluoric acid). The demand for epoxy resin in the foreign anti-corrosion market has been greatly reduced. The main reason is that the unsaturated polyester resin in terms of corrosion resistant resin has developed rapidly with many varieties. The domestic market started late because of the unsaturated polyester resin, Therefore, epoxy resin is still one of the main resin varieties in the anti-corrosion field. The main characteristics of epoxy resin are high bonding strength, low shrinkage, high product brittleness and high price. The service temperature of resin cured at room temperature is not more than 80 ℃.
The second is the curing agent of epoxy resin, including amine, anhydride, resin compounds, etc. Amine compounds are more commonly used, which can also be divided into fatty amine, aromatic amine and modified amine. Because ethylenediamine, m-phenylenediamine, phenylenedimethylamine, polyamide, diethylenetriamide and other compounds are toxic and odorous, they are gradually replaced by non-toxic and low toxic new curing agents (such as T31.590, C20, etc.), This kind of curing agent can also cure wet base course and even underwater, so it has increasingly attracted people's attention and praise.
The third is diluent. Inactive diluents such as ethanol, acetone, benzene, toluene, xylene, etc. are usually used for diluting epoxy resin. The two kinds of inactive diluents can be mixed. Sometimes active 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 porosity and cracking;
The fourth is plasticizer and toughener. After curing, pure epoxy resin is brittle, with poor impact toughness, bending strength and heat resistance. Plasticizers and tougheners are commonly used to increase the plasticity, toughness, bending strength and impact toughness of the resin;
The fifth is filler. Powder, fine aggregate, coarse aggregate and glass flake are collectively referred to as filler. Adding appropriate filler can reduce the cost of products and improve their performance. The amount of filler in glue solution is generally 20~40% (weight) of the amount of resin. More filler can be added when preparing putty, which is generally 2~4 times of the amount of resin. The commonly used powders are quartz powder, porcelain powder, graphite powder, diabase powder, talc powder Mica powder, etc.
The above is the brominated epoxy resin manufacturer - Suzhou Boreida. Suzhou Boreida Polymer Materials Co., Ltd. has its own development laboratory. The brominated epoxy resin flame retardant series products developed by the company have been put into mass production and become the choice of imported substitute products in the domestic market and exported to Southeast Asia. We look forward to your call for consultation and negotiation.
