A kind of epoxy resin curing agent and separator for its manufacture

Abstract

The invention relates to the technical field of additive manufacturing, in particular to an epoxy resin curing agent and a separator for its manufacture, including matrix synthesis, resin prepolymerization, modification reaction and water-dissolving treatment; wherein the separator includes a distillation tank, a vacuum pump and a controller; the tank body of the distillation tank is spindle-shaped, and the inside of the distillation tank is provided with a condensation grid; because the solvent in the distillation process is discharged through condensation in the condensation tube, a large amount of volatilization in the distillation tank is limited The distillation rate of the neutral gaseous solvent prolongs the time consumed by the distillation process and affects the quality of the subsequent water-based epoxy resin curing agent; , to avoid the interference of the solvent volatilization state in the distillation process, improve the distillation rate of the solvent, and at the same time, the spindle-shaped distillation tank increases the contact area with the heating net, thereby improving the application effect of the epoxy resin curing agent.

Description

technical field [0001] The invention relates to the technical field of auxiliary agent manufacturing, in particular to an epoxy resin curing agent and a separator for manufacturing the same. Background technique [0002] Epoxy resin curing agent is an additive that chemically reacts with epoxy resin to form a network-shaped three-dimensional polymer, encapsulates the composite material in the network body, and turns the linear resin into a tough solid body; epoxy resin Resins are widely used in various fields because of their excellent adhesion, electrical insulation, thermal stability and mechanical properties. With the improvement of people's environmental awareness, epoxy coatings using water as a solvent and dispersant have gradually attracted attention. , Water-based epoxy resin has the advantages of low VOC content, non-flammable, safe and non-toxic, and good workability; for the introduction of water-based epoxy resin curing agent, please refer to: Wang Sixue, etc., R...

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Problems solved by technology

[0004] There are also some technical solutions about epoxy resin curing agent and its manufacturing method in the prior art. For example, a Chinese patent with application number 2020100491992 discloses an epoxy resin curing agent and its manufacturing method, including the following weights Parts of components: 20 parts of hexachlorocyclotriphosphazene, 5 parts of tetrahydrofuran, 2 parts of sodium phenoxide, 5 parts of deionized water, 2 parts of aminophenol, 3 parts of sodium hydride, 10 parts of ethyl maltol; improved production process , abandon the form of mechanical stirring in the prior art, use cotton-wrapped edible capsules, inject compressed carbon dioxide gas and ethyl maltol into the edible capsules, use the characteristics of edible capsules to melt in water to release compressed carbon dioxide gas, generate stirring power, and avoid The precipitate is broken, which simplifies the filtration and cleaning process and improves the production efficiency; accelerates the dissolution and release of ethyl maltol, and improves the product odor; the epoxy curing agent under the new process of this technical solution not only smells fragrant, but also improves production efficiency , which reduces the production cost, facilitates precipitation cleaning, and improves its actual production value; but the problem of toxic pollution of epoxy resin curing agent in use is not solved in this technical solution, and it is used in the manufacture of environmentally friendly water-based solvent epoxy resin curing agent In the process, the step of replacing the chemical solvent component with water is difficult to fully distill and replace, which reduces the application effect of the epoxy resin curing agent

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