News Details
Waterborne epoxy resin special paint crosslinking agent
2017-8-31 23:01:18
Waterborne epoxy resin special paint crosslinking agent
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
With the popularity of environment-friendly products, powder coatings, waterborne epoxy resin special crosslinking agent, and single-component adhesive crosslinking agent have a promising future.
In the direction of the development of the special crosslinking agent for waterborne epoxy resin, the industry experts also put forward the specific modification technology matching with it.
Waterborne epoxy resin is special crosslinking agent modification technology such as: fat amine modified, the modified epoxy resin incense amine especially m-phenylene diamine, between benzene dimethylamine modification, acid modification and liquid, the dicyandiamide modified and imidazole modification and liquid and liquid, etc.
The development direction of epoxy resin. In fact, innovation and development of epoxy resin is to make full use of the active epoxy group on the resin grafted, in order to realize the resins, such as interpenetrating network, such as chemical copolymerization method, especially the toughening method and the liquid crystal nanoparticles toughening method is the research hotspot in recent years.
As the raw material end of low carbon and green environmental protection coating, it should have the initiative in resin innovation. There are many ideas that can be borrowed, or whether immature ideas can lead to "exceptional" innovation.
Regarding the limits of VOC content, it is mentioned that the use of solvents that are not in VOC can be used, such as "modified acetone" to replace benzene diluents, which need to avoid the shortcoming of volatility too fast.
Solid bisphenol F type epoxy resin for anticorrosive coatings and powder coatings, with small viscosity, good impregnation and excellent corrosion resistance; Liquid bisphenol F - type epoxy resin for solvent-free coatings and adhesives.
The lipid ring group epoxy resin used for the resistance to uv resistance, due to the structural characteristics of the lipid ring, endows the surface resistance and leakage resistance of the coating, and helps the film's color and durability. Preparation of excellent finish coat, uv crosslinking green paint; Brominated epoxy resin used as flame retardant coatings.
Chinese name: Diethyl toluene diamine(DETDA)Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
High purity o-cresol phenolic epoxy resin for electric coating. Such as optical instrument coatings, display tube explosion protection coatings and top floor coating epoxy resin colorless, transparent, flexible and should be wear resistant and easy to crosslinking, this would require the new system compatible with the epoxy resin coatings.
At present, the production of pure epoxy coatings in foreign countries is declining, accounting for only 2.6%, while epoxy/polyester powder coating has risen to about 50%. In addition, a lot of use of epoxy/acrylic powder coatings.
Coating industry towards low-carbon green paint; Unique functional coatings; High quality special coating development. Accordingly, epoxy resin/crosslinking agent should also be innovated in the direction of low carbon green, functional, specialized and refined. Thoroughly banish the traditional industrial chain from the top of the thinking, according to the downstream coating application market demand innovation. Only in this way, in the face of the long economic weakness, can play the active battle, only have the survival path.
Epoxy resin and epoxy resin adhesive is non-toxic, but due to the solvent is added in the preparation process and other toxic substances, so many "toxic" epoxy resin, domestic epoxy resin industry is through the modification and avoid to add water, keep the epoxy resin "toxic" true colors. Epoxy is commonly used in conjunction with additives to gain application value.
Additives can be selected for different purposes, and there are several types of additives: (1) crosslinking agents; (2) modifier; (3) packing; (4) diluent; (5) other. The crosslinking agent is an indispensable addition, whether it is adhesive, coating or pouring material, it should be added to the crosslinking agent, or the epoxy resin cannot be cross-linked. Due to different performance requirements, different requirements for epoxy resin and crosslinking agents, modifiers, fillers, diluents and other additives are also required.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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