Environment-friendly pollution-free industrial modified starch adhesive and manufacture process thereof

Abstract

The invention provides an environment-friendly pollution-free industrial modified starch adhesive. The modified starch adhesive is prepared from the following components based on 100 percent of total amount: 20-50% of modified starch, 5-20% of monosaccharide, 0.1-2% of potassium sorbate, 0.1-10% of guar gum and the balance of pure water. The novel environment-friendly adhesive is completely prepared from pollution-free and edible components, so that user safety and environmental friendliness can be ensured; and the guar gum is macromolecular natural hydrophilic colloid, belongs to natural galactomannan, is one of quality improvers, and is a natural thickening agent. The modified starch adhesive is free-flowing powder having an appearance from white to light yellow, can be dissolved in cold water or hot water, and can form a gelatinous substance after encountering water, so that the effect of quickly thickening is achieved; the guar gum is a known natural polymer which is most effective and has best water solubility; a high-viscosity solution can be formed under low density; and non-newtonian rheological characteristics are represented. The performance of the adhesive is greatly improved.

Description

technical field [0001] The invention relates to the technical field of powder coatings, in particular to an environmentally friendly, green and pollution-free industrial modified starch adhesive and a manufacturing process thereof. Background technique [0002] Industrial glue is an application classification of adhesives. It is used in the industry to connect the surfaces of homogeneous or heterogeneous objects with adhesives. It has the characteristics of continuous stress distribution, light weight, or sealing, and low temperature in most processes. Generally speaking: Industrial glue has many characteristics such as high strength, wide range of applicable temperature, wide range of viscosity options, low price, and easy production. [0003] Starch adhesive has the advantages of abundant raw material sources, low price, and degradability, and can be widely used in corrugated cardboard packaging boxes, fiberboard, construction and other fields. However, the disadvantages ...

AI Technical Summary

Problems solved by technology

Under the action of hydrophilicity and hydrogen bonds of starch molecular chains, starch adhesives have high viscosity and poor water resistance.

In recent years, the research on improving the water resistance of starch by chemical cross-linking has been reported. However, most of the starch adhesives currently on the market use a large amount of organic chemical raw materials, which are highly polluting and pungent, and do not meet the requirements of environmental protection at all. , this problem needs to be solved urgently