High-concentration non-ionic cellulose ether suspension dispersion liquid and preparation method thereof

Abstract

The invention relates to a high-concentration non-ionic cellulose ether suspension dispersion liquid and a preparation method thereof. The dispersion liquid contains non-ionic cellulose ether and a high-alkalinity water solution, wherein the non-ionic cellulose ether is dispersed in the high-alkalinity water solution in a suspending mode instead of a dissolution mode. Compared with the prior art, a terminal product is produced by directly using the cellulose ether. When the mixing amount of the cellulose ether is required to be increased, the water consumption is not required to be passively and simultaneously increased. In addition, when a liquid compound additive is produced by using the cellulose ether, the water demand of the compound additive can be remarkably decreased, and the transportation cost of the compound additive is reduced. The prepared dispersion liquid is moderate in viscosity, has good liquidity, can be pumped, can also uniformly disperse a cellulose ether solution and is dispersed after long-time stable storage, and the thickening and water retention performance of the liquid is also same as the property of direct dissolution in water.

Description

technical field [0001] The invention relates to the technical field of cellulose ether suspension dispersion liquid, in particular to a high-concentration nonionic cellulose ether suspension dispersion liquid, and also relates to a preparation method of a high-concentration nonionic cellulose ether suspension dispersion liquid. Background technique [0002] Cellulose ethers, especially water-soluble non-ionic cellulose ethers, such as MC, HEC, HEMC, HPC, HPMC, etc., have a wide range of applications as thickening and water-retaining additives in food, medicine, chemical, petroleum, building materials and other industries. It is compared to "industrial monosodium glutamate". Cellulose ether can be used alone or compounded with other functional materials to become a composite additive with multiple properties. [0003] The initial form of cellulose ether products is powder, but its thickening and water-retaining performance in the end product needs to be in the form of an aqu...

AI Technical Summary

Problems solved by technology

[0010] ①. In the process of directly using cellulose ether solution to produce end products, when the concentration of the solution is low (0% to 1.5%), if the amount of cellulose ether (solute) is increased, the amount of water (medium) will be increased at the same time. ), which easily leads to the problem of excessive water (medium) mixing;

As a result, the production efficiency is low and the energy consumption is high;

[0012] ③. In the production process of some composite additives that require the use of cellulose ether solution, due to the limitation of the viscosity of the cellulose ether solution, it is difficult to increase the content of cellulose ether in the composite additive

When it is necessary to transport the composite additive to the end user's factory, most of the transported medium (water or other dispersion medium) is actually used, resulting in a serious waste of transportation capacity, resulting in an increase in the use cost of the composite additive The problem