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Starch solution and preparation thereof

A starch and solution technology, applied in the preparation of the starch solution, in the field of starch solution, to achieve the effect of using less equipment, proper retention and long storage period

Inactive Publication Date: 2009-08-12
吴昊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In addition, according to the applicant's research, there is currently no relevant technical solution in China that organically combines the two denaturation methods of physical and chemical methods to perform secondary processing on the modified starch, thereby improving its comprehensive performance.

Method used

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  • Starch solution and preparation thereof
  • Starch solution and preparation thereof
  • Starch solution and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Add 450 grams of water to 200 grams of modified starch to dissolve, add 40 grams of polyvinyl alcohol, and heat to 90 ° C, stir well (continuous stirring for 3 minutes), finally, add 55 grams of p-toluenesulfonic acid aqueous solution , 60 grams of formaldehyde, and stir evenly (continuous stirring 3min), modified starch adopts oxidized starch, the weight percent concentration of p-toluenesulfonic acid aqueous solution is 15%, and the weight percent concentration of formaldehyde is 37%, can make this solution.

Embodiment 2

[0057] Add 500 grams of water to 250 grams of modified starch to dissolve, add 45 grams of polyvinyl alcohol, and heat to 90 ° C, stir well (continuous stirring for 3 minutes), finally, add 60 grams of p-toluenesulfonic acid aqueous solution , 80 grams of formaldehyde, and stir evenly (continuous stirring 3min), modified starch adopts oxidized starch, the weight percent concentration of p-toluenesulfonic acid aqueous solution is 15%, and the weight percent concentration of formaldehyde is 37%, can make this solution.

Embodiment 3

[0059] Add 550 grams of ethanol to 300 grams of modified starch to dissolve, add 50 grams of polyvinyl alcohol, and heat to 90 ° C, stir well (continuous stirring for 3 minutes), and finally, add 75 grams of p-toluenesulfonic acid aqueous solution , 100 grams of formaldehyde, and stir evenly (continuous stirring 3min), modified starch adopts oxidized starch, the weight percent concentration of p-toluenesulfonic acid aqueous solution is 15%, and the weight percent concentration of formaldehyde is 37%, can make this solution.

[0060] see figure 1 , the upper and lower lines are the Raman spectrum analysis results of the existing modified starch solution and the solution described in Example 3 of the present invention. From figure 1 It can be seen that the positions of the characteristic peaks of the existing modified starch solution and this solution are basically the same, which shows that the characteristic groups of the two solutions are basically the same, and the differen...

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Abstract

The invention relates to a starch solution and a preparation method thereof. The solution contains 200-300 parts of modified starch by weight, 40-50 parts of polyvinyl alcohol by weight, 450-550 parts of a solvent by weight, and the solvent is water or ethanol; the solution improved also contains 55-75 parts of paratoluenesulfonic acid and 60-100 parts of formaldehyde by weight, the paratoluenesulfonic acid has the percentage concentration of 15% by weight and formaldehyde has the percentage concentration of 37% by weight. The preparation method comprises traditional mixing, heating and stirring methods. The solution has economic formula, persistent functions and better all round properties (such as long storage period, no odor after use, proper viscosity, proper retention and strong adhesive force, and being capable of improving stiffness and bursting strength of paper products, effectively lowering aperture and maintaining good air permeability of paper products, which can play an obvious function of improving properties and service life of paper products), and wide use; and the preparation method of the solution is realized by simple process and less equipment.

Description

technical field [0001] The present invention relates to a kind of solution, more specifically, the present invention relates to a kind of starch solution, meanwhile, the present invention also relates to a kind of preparation method of said starch solution. technical background [0002] At present, starch is the most popular and the largest amount of non-fibrous organic matter in the paper industry. It is widely used in many aspects of paper and paperboard production and processing, such as wet end (reinforcement, retention, drainage), interlayer spraying, surface sizing, coating adhesives, corrugated board bonding and other processing operations. bonding. Among them, the amount of starch used for surface sizing is the largest, accounting for about two-thirds of the total amount of starch used in papermaking. [0003] The molecular formula of starch is (C 6 h 10 o 5 )n, is a high polymer formed by polycondensation of α-glucose. Due to the polymer structure of starch, r...

Claims

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Application Information

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IPC IPC(8): C08L3/04C08J3/03C08J3/09
Inventor 邹宜哲吴昊郭长友
Owner 吴昊
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