Glue production process

Abstract

The invention disclsoes a glue production process. The glue production process comprises the following steps: S1: synthesizing: after liquefying solid-state formaldehyde, mixing the liquefied solid-state formaldehyde with an organic solvent; dropwise adding a mixture composed of ethyl cyanoacetate and pyridine; keeping heat, and adding phosphoric acid into the materials, and uniformly stirring; standing and layering; S2: dehydrating: performing reflux condensation dehydrating on the materials through adding an organic solvent into the materials from the top of a container; after dehydrating, raising the temperature, and drawing the materials in vacuum to obtain crude glue; adding a mixture of dioctyl phthalate, disulfur pentoxide and hydroquinone into the crude glue; meanwhile, adding p-toluene sulfonic acid into the container; S3: cracking: heating the inner part of the container and raising the temperature; stirring, vacuumizing and starting external cooling circulating water of the container; increasing the temperature in the container to separate out secondary glue; S4: refining: adding phosphorus pentoxide and hydroquinone into the secondary glue; distilling and refining the secondary glue under a vacuum condition, and purifying and separating out refined glue. According to the glue production process, the production quality of the glue can be effectively enhanced, the rate of finished products can also be remarkably improved, and the production cost of the glue is reduced.

Description

technical field [0001] The invention relates to the field of chemical production, and more specifically relates to a glue production process. Background technique [0002] Glue can be called adhesive, adhesive, bonding agent or glue again, and it refers to the same kind or two or more homogeneous or heterogeneous parts (or materials) that can be connected together. A class of substances, organic or inorganic, natural or synthetic, of sufficient strength. The glue has the characteristics of continuous stress distribution, light weight, and good sealing effect. It is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications, and complex components. The research and development of glue has developed rapidly in modern times, and its application industry is extremely wide, which has greatly promoted the development of science and technology and the improvement of people's daily life. [0003] In view of the increase in the w...

AI Technical Summary

Problems solved by technology

Through the above method, although the composite glue that meets the basic needs can be prepared, due to the limitations in the process design of the above method, the prepared glue has serious whitening phenomenon, strong pungent smell, and relatively poor product quality; in addition, through the above method When the glue is prepared by the process method, about 700 kilograms of finished products can be obtained from 1000 kilograms of raw materials, and the yield of finished products is relatively low, which greatly increases the production cost

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