Soybean glue and preparation method thereof

Abstract

The invention relates to an adhesive and the field of preparation of the adhesive, and in particular relates to a soybean glue and a preparation method thereof. The soybean is prepared from the following raw materials in parts by mass: 100 parts of water, 15-400 parts of soybean derivative, 3-8 parts of alkaline, 0.5-3 parts of silicate, 0.2-5 parts of modifying agent, 0.3-2.5 parts of curing agent, 0.1-4 parts of acid, 0.1-20 parts of water-based acrylic resin, 0.1-1.5 parts of insect-resist agent and 1-10 parts of filler. The soybean glue prepared in the invention has high adhesive strength and low formaldehyde emission and further has mould-proof, corrosion-proof, mothproof and waterproof functions.

Description

technical field [0001] The invention relates to the field of viscose and its preparation, in particular to soybean gum and its manufacturing method. Background technique [0002] As the international community pays more and more attention to the hazards of volatile formaldehyde, phenol and other harmful gases in "trialdehyde glue" to human health, coupled with the increasing shortage of petroleum resources, the production cost of formaldehyde adhesives is rising steadily, making wood The processing adhesive industry has begun to consider the use of abundant and renewable biomass resources to research and develop new, natural, non-toxic adhesives. Soybean is widely planted all over the world, and it is one of the important crops to obtain soybean oil and vegetable protein. It has a good development prospect to replace petroleum resources with soybean protein to produce adhesives. However, traditional soybean protein glue has disadvantages such as poor water resistance, low b...

AI Technical Summary

Problems solved by technology

However, traditional soybean protein glue has disadvantages such as poor water resistance, low bonding strength, poor anti-corrosion performance, low anti-microbial degradation ability, easy to mildew, and short storage period, which seriously restrict its popularization and use.

As stated in the Chinese invention patent with the application number 101724376A (2010-06-09), it mainly uses the method of degrading soybean protein with strong alkaline substances to make adhesives, but in order to improve the bonding strength, glyoxal and pentyl Although formaldehyde is not added to dialdehyde and other aldehydes, glyoxal and glutaraldehyde have the same properties as formaldehyde and are toxic substances that will cause harm to human health.

Another example is the Chinese invention patent with the publication number of 102516933A (2012-06-27), which uses layered silicate to enhance the bonding strength and water resistance of soybean adhesives, but it is easy to mildew and has a short storage time, and the prepared Plates are susceptible to erosion by termites, silverfish, etc.

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