Epoxy resin curing agent and preparation method thereof

Abstract

The invention belongs to the technical field of auxiliary agent synthesis, and particularly relates to an epoxy resin curing agent and a preparation method thereof, the epoxy resin curing agent comprises the following components by weight: 20 parts of phosphonitrilic chloride trimer, 5 parts of tetrahydrofuran, 2 parts of sodium phenolate, 5 parts of deionized water, 2 parts of aminophenol, 3 parts of sodium hydride, and 10 parts of ethyl maltol. By means of the improved production process, a mechanical stirring mode in the prior art is abandoned, edible capsules wrapped by cotton are used, and compressed carbon dioxide gas and ethyl maltol are injected into the edible capsules. The edible capsules melt when encountering water, so that the compressed carbon dioxide gas can be released, sothat stirring power is generated and sediment is prevented from being broken; the filtering and cleaning process is simplified, and the production efficiency is improved. Dissolution and release of ethyl maltol are accelerated, and the smell of the product is improved. The epoxy curing agent prepared by the new process is fragrant in smell, the production efficiency is improved, the production cost is reduced, precipitate cleaning is facilitated, and the actual production value of the epoxy curing agent is improved.

Description

technical field [0001] The invention belongs to the technical field of auxiliary agent synthesis, in particular to an epoxy resin curing agent and a manufacturing method thereof. Background technique [0002] Epoxy resin curing agent is an additive that chemically reacts with epoxy resin to form a network-like three-dimensional polymer, envelops the composite material in the network, and makes the linear resin into a tough solid body, including many The first type, epoxy floor is mostly used for the underground garage floor, the price is cheap and practical. Metal food packaging containers often need to be coated with a layer of epoxy coating on the inner wall of the tank to ensure the quality of the contents during the storage period, and at the same time prevent the corrosion that occurs when the metal and food are in contact. At the same time, it is used as a food can The internal coating also needs better adhesion performance to meet a certain stamping deformation abili...

AI Technical Summary

Problems solved by technology

[0004] 1. Epoxy curing agent is used in machinery, electronics and even food cans. However, the epoxy curing agent prepared by this scheme is made of chemicals and has an unpleasant smell. It is easy to cause greater irritation to the nose during use. to damage;

[0005] 2. Pure mechanical stirring is used in the production process of this process, which can easily cause the precipitated precipitate to be broken into finer particles, which is not conducive to subsequent filtration, increases the difficulty of filtration, and reduces production costs. At the same time, too fine precipitate is not conducive to cleaning;

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