Preparation method of binding agent

Abstract

The invention discloses a binding agent which is characterized by comprising the following components in percentage by weight: 0%-22.7% of kaolin, 0.5%-3% of PVA (polyvinyl alcohol), 2%-11% of high-viscosity composite rubber powder, 0.3%-0.7% of hydrochloric acid or oxalic acid, 0.1%-0.6% of formaldehyde, 0.4%-0.7% of ammonia water, 0.3%-0.4% of boric acid, 0.05%-0.15% of boric acid, 0.02%-0.05% water-based defoaming agent, 0.1%-0.3% of preservative and the balance of water. The binding agent disclosed by the invention has the advantages of favorable flowability and favorable viscosity, and can be dried quickly.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof. Background technique [0002] Adhesives are one of the most important auxiliary materials and are widely used in packaging operations. Adhesives are sticky substances that join two separate materials together by virtue of their adhesive properties. During the Spring Festival, every household and business has the custom of pasting Spring Festival couplets. Usually, people either use paste or tape to stick Spring Festival couplets on the wall. The traditional paste manufacturing process uses flour or starch and water at 60-80°C to make a paste, which is mostly used for bonding paper, cloth or objects. In production, alum, glycerin, liquid carbolic acid, etc. will be added to obtain a thick body. [0003] In actual application, the purpose of adding alum is to promote the precipitation of starch better. However, alum should be used cautiously when mounting new calligraphy and painti...

AI Technical Summary

Problems solved by technology

[0003] In actual application, the purpose of adding alum is to promote the precipitation of starch better. However, alum should be used cautiously when mounting new calligraphy and painting and unmounting or repairing old calligraphy and painting. If too much alum is used, the mounted piece will be alumized. , which increases the brittleness and hardness of the mounted piece, and also makes it difficult to unmount in the future, which is extremely unfavorable for the long-term handing down of calligraphy and painting.

After the paste is prepared, its fluidity is poor. When using it, it needs to be equipped with a brush to scrape the paste out, and then use a brush to apply it to the required place. In addition, the viscosity is poor and it is easy to fall off under strong wind; and a large amount of flour or starch is used. , causing waste

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