Waterproof sizing starch preparation process

A technology for preparing and sizing starch, which is applied in the field of starch, can solve the problems of complex preparation process and poor hydrophobicity of modified starch, and achieve the effects of improving physical strength, improving paper surface smoothness, and reducing the number of broken ends

Active Publication Date: 2017-06-30
晋州市大成变性淀粉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor hydrophobicity and complicated preparation process of modified starch in the prior art, the present inventi

Method used

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  • Waterproof sizing starch preparation process
  • Waterproof sizing starch preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A, add 900kg cornstarch and 3kg aluminum sulfate in reactor, control reactor temperature 30 ℃;

[0034] B, under 30r / min stirring condition, add acrylamide aqueous solution (formed by mixing 3kg acrylamide and 10kg water) and the ammonium persulfate aqueous solution (the consumption of ammonium persulfate is 2kg) that concentration is 15% in the reactor, stir React for 10 minutes;

[0035] C, add 1kg ammonium stearate and 1kg ferrous sulfate in reactor, react 20min;

[0036] D, add 0.1kg boric acid in reactor, react 5min, preferably, boric acid is opened with warm water earlier;

[0037] E. Rapid cooling, the temperature drops below 40°C and the material is discharged to obtain waterproof sizing starch.

Embodiment 2

[0039] A, add 930kg tapioca starch and 4kg aluminum sulfate in reactor, control reactor temperature 35 ℃;

[0040] B, under 40r / min stirring condition, add acrylamide aqueous solution (formed by mixing 5kg acrylamide and 10kg water) and the ammonium persulfate aqueous solution (the consumption of ammonium persulfate is 4kg) that concentration is 20% in the reactor, stir React for 12 minutes;

[0041] C, add 2kg ammonium stearate and 2kg ferrous sulfate in reactor, react 25min;

[0042] D, add 0.3kg boric acid in reactor, react 7min, preferably, boric acid is opened with warm water earlier;

[0043] E. Rapid cooling, the temperature drops below 35°C and the material is discharged to obtain waterproof sizing starch.

Embodiment 3

[0045] A, add 950 cornstarch and 5kg aluminum sulfate in reactor, control reactor temperature 40 ℃;

[0046] B, under 40r / min stirring condition, add acrylamide aqueous solution (formed by mixing 8kg acrylamide and 20kg water) and the ammonium persulfate aqueous solution (the consumption of ammonium persulfate is 6kg) that concentration is 23% in the reactor, stir Reaction 13min;

[0047] C, add 3kg ammonium stearate and 1.5kg ferrous sulfate in reactor, react 27min;

[0048] D, add 0.6kg boric acid in reactor, react 9min, preferably, boric acid melts with warm water earlier;

[0049] E. Quickly cool down, the temperature drops below 32°C, and the material is discharged to obtain waterproof sizing starch.

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Abstract

The invention discloses a waterproof sizing starch preparation process, and belongs to the technical field of starch. According to the process, starch serves as raw materials and modified. The preparation process includes the steps: A, adding starch and aluminum sulfate into a reaction kettle, and controlling the temperature of the reaction kettle to be 30 DEG C-50 DEG C; B, adding acryl amide aqueous solution and ammonium persulfate aqueous solution into the reaction kettle under stirring conditions, and performing reaction for 10-15min in a stirring manner; C, adding ammonium stearate and ferrite into the reaction kettle, and performing reaction for 20-30min; D, adding boric acid into the reaction kettle to react; E, cooling and discharging to obtain the waterproof sizing starch. The preparation process is simple, mild and stable and simple to operate, and the prepared waterproof sizing starch is good in hydrophobicity and high in whiteness.

Description

technical field [0001] The invention belongs to the technical field of starch and relates to a waterproof sizing starch, in particular to a preparation process of the waterproof sizing starch. The preparation process of the invention is simple and easy to operate, the whole production process is mild and stable, and the prepared waterproof sizing starch has good hydrophobicity, good fluidity and high starch whiteness. The preparation process of the invention has the advantages of simple operation, reasonable process, low cost and the like. Background technique [0002] As a natural polymer compound, starch has the advantages of wide sources, low cost, non-toxic, harmless, biodegradable and recyclable. It is a natural, green and environmentally friendly material, widely used in food, daily chemical products, paper making, textiles and medicine and other fields. Because different types of starch granules have different sizes and shapes, and most starch granules are large in ...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/56C08B31/18D21H21/16D21H19/14
CPCC08B31/18C08F251/00D21H19/14D21H21/16C08F220/56
Inventor 石英民
Owner 晋州市大成变性淀粉有限公司
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