Adhesive and preparation method thereof

Abstract

The invention provides an adhesive and a preparation method thereof. The preparation method comprises the following steps: 1, selecting sticky rice and broken rice produced in regions with long sunshine duration and mixing to obtain a mixture A; 2, fully soaking the mixture A by using clear water; 3, flushing the soaked mixture A in a filter screen frame; 4, putting the flushed mixture A on a slurry grinder, adding water, and grinding, thus obtaining ground slurry; 5, adding sodium benzoate into the slurry, mixing with non-iron aluminium sulfate and native tapioca starch, and uniformly blending and stirring; 6, filtering by using a fine filter screen; 7, sucking the filtered slurry or pouring the slurry into a reaction kettle, adding water, and carrying out high-temperature gelatinization; and 8, adding a fungicide and urea. According to the invention, sticky rice is prepared into a natural adhesive by soaking, grinding and gelatinization, so that the multifarious process of starch denaturalization is avoided and the cost of resources is lowered; and products are good in initial adhesivity, large in bonding strength, rapid in decomposition speed and good in flowability; therefore, the adhesive is extremely applicable to the construction and adhering action of products above.

Description

technical field [0001] The invention relates to an adhesive, in particular to an adhesive and a preparation method thereof. Background technique [0002] At present, the wallpaper wet glue used in the Chinese market uses denatured wheat, potato, cassava, corn, and waxy corn starch as the main raw materials for gelatinization production, but the denatured starch requires a lot of process costs such as water and electricity, and wastes resources. . [0003] Analysis of the infeasibility of using glutinous rice modified starch as an adhesive: due to the high protein content of glutinous rice, there is a lot of foam, and starch separation is difficult to achieve. Starch has small particle size, chemical modification, low reaction rate, and very high cost, so it is not suitable for the production of adhesives. [0004] This shows that the glutinous rice modified starch is technically difficult to realize, and it is too wasteful and costly to realize, so it is not suitable for p...

AI Technical Summary

Problems solved by technology

[0002] At present, the wallpaper wet glue used in the Chinese market uses denatured wheat, potato, cassava, corn, and waxy corn starch as the main raw materials for gelatinization production, but the denatured starch requires a lot of process costs such as water and electricity, and wastes resources.

[0003] Infeasibility analysis of glutinous rice modified starch as an adhesive: due to the high protein content of glutinous rice, there is a lot of foam, and starch separation is difficult to achieve

Starch has small particle size, chemical modification, low reaction yield, and very high cost, so it is not suitable for the production of adhesives

[0004] This shows that glutinous rice modified starch is technically difficult to realize, and secondly, it is too wasteful and costly to realize, so it is not suitable for product industrialization.

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