Preparation method of nano cellulose in high length-to-diameter ratio
A nanocellulose, high aspect ratio technology, applied in the use of microorganism/enzyme cellulose treatment, fiber raw material treatment, pulp beating method, etc., can solve the problem of nanocellulose particle size distribution wide, nanocellulose operation complex, consumption Time and other problems, to achieve the effect of green preparation method, solve the problem of nanocellulose agglomeration, and reduce energy consumption
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[0013] The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.
[0014] One, embodiment one.
[0015] The preparation method of the high aspect ratio nanocellulose is as follows: Weigh 1000g of softwood pulp, add water until the pulp concentration is 2%, and pass through 150ppm of compound biological enzyme (made by endoglucan under the condition of 25°C and pH 6.5 Carbohydrase, exoglucanase and β-glucosidase (combined at a ratio of 10:5:1) were treated for 12 hours, and the treated slurry was diluted with water to a concentration of 1.5w%, and then used a Wall-E beater Beat until the degree of beating is 65°SR, add 0.1w‰polyethylene oxide to the obtained slurry, stir evenly, and then carry out circulation treatment in the colloid mill, reduce the gap between the grinding discs once every two cycles, and grind twice to obtain Nanocellulose with an aspect ratio of 500-...
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