Freeze-thaw resistant starch glue and preparation method thereof

A starch glue, freeze-thaw-resistant technology, applied in the directions of starch adhesives, starch-derived adhesives, adhesive types, etc. Strong binding force and good construction effect

Inactive Publication Date: 2014-03-05
HANGZHOU MIKABO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the environmentally friendly adhesives for wallpaper are liquid starch glue or glutinous rice glue, but if the liquid starch glue freezes during transportation and s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The weight ratio of each component of freeze-thaw resistant starch glue is: 500 parts of deionized water, 40 parts of hydroxypropyl tapioca starch, 30 parts of late indica rice flour, 30 parts of glutinous rice flour, 6 parts of alum, 2, 4, 5, 0.3 parts of 6-tetrachloro-1,3-phthalonitrile, 0.3 parts of methylisothiazolinone, and 0.8 parts of sodium benzoate.

[0022] Preparation method: Add 450 parts of deionized water into the reaction kettle, start the stirrer, control the stirring speed at about 60 rpm, mix 40 parts of hydroxypropyl tapioca starch, 30 parts of late indica rice flour, 30 parts of glutinous rice flour and 6 parts of alum in sequence Put it into the reaction kettle to form starch slurry; put steam into the jacket of the reaction kettle to raise the temperature of the system to 85-90°C, and when the temperature reaches the specified temperature, keep it at this temperature for 30 minutes to fully gelatinize the starch slurry . Pass cooling water in...

Embodiment 2

[0025] The weight ratio of each component of the freeze-thaw resistant starch glue is: 500 parts of deionized water, 30 parts of hydroxypropyl tapioca starch, 30 parts of hydroxypropyl waxy corn starch, 15 parts of late indica rice flour, 15 parts of glutinous rice flour, alum 8 parts, 0.5 parts of 2,4,5,6-tetrachloro-1,3-phthalonitrile, 1.2 parts of sodium benzoate.

[0026] Preparation method: Add 450 parts of deionized water into the reaction kettle, start the agitator, control the stirring speed at about 60 rpm, mix 30 parts of hydroxypropyl tapioca starch, 30 parts of hydroxypropyl waxy corn starch, 15 parts of late indica rice flour, Add 15 parts of glutinous rice flour and 8 parts of alum to the reaction kettle in turn to form a starch slurry; put steam into the jacket of the reaction kettle to raise the temperature of the system to 85-90°C, and when the temperature reaches the specified temperature, keep it at this temperature for reaction 30 minutes to fully gelat...

Embodiment 3

[0029] The weight ratio of each component of the freeze-thaw resistant starch glue is: 500 parts of deionized water, 50 parts of hydroxypropyl waxy corn starch, 25 parts of late indica rice flour, 25 parts of glutinous rice flour, 0.6 part of borax, methylisothiazoline 0.5 part of ketone, 0.8 part of potassium sorbate.

[0030] Preparation method: Add 450 parts of deionized water into the reaction kettle, start the agitator, control the stirring speed at about 60 rpm, mix 50 parts of hydroxypropyl waxy corn starch, 25 parts of late indica rice flour, 25 parts of glutinous rice flour and 0.6 part of borax Add it to the reaction kettle in turn to form starch slurry; put steam into the jacket of the reaction kettle to raise the temperature of the system to 85-90°C, and when the temperature reaches the specified temperature, keep it at this temperature for 30 minutes to make the starch slurry fully paste change. Pass cooling water into the jacket of the reaction kettle to coo...

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Abstract

The invention belongs to the field of binder for wallpaper. The freeze-thaw resistant starch glue is composed of the following components by weight: 500 parts of deionized water, 40-90 parts of hydroxypropyl modified starch, 5-30 parts of late indica rice flour, 5-30 parts of glutinous rice flour, 0.5-10 parts of a complexing agent, 0.5-4 parts of a bactericide and 0.5-5 parts of a preservative. The starch glue is prepared through the steps of starch paste preparation, gelatinization complexation of the starch slurry, cooling, addition of bactericide and preservative, mixing, discharging and packaging. Through three times of freeze-thaw test with refrigeration cycle at -20 DEG C, the freeze-thaw resistant starch glue provided by the invention has viscosity and peel strength retention rate both greater than 85%. The freeze-thaw resistant starch glue solves the problem of refrigeration failure of starch glue in transportation and storage process in winter.

Description

technical field [0001] The invention belongs to the field of adhesives for wallpaper, and in particular relates to a freeze-thaw-resistant starch glue and a preparation method thereof. Background technique [0002] At present, most of the environmentally friendly adhesives for wallpaper are liquid starch glue or glutinous rice glue, but if the liquid starch glue freezes during transportation and storage in winter, the starch in the adhesive will separate from the water after thawing, and the adhesive will lose viscosity. Most starch glues currently on the market are not freeze-thaw resistant. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a starch glue for wallpaper with strong cohesive force, environmental protection and good freeze-thaw resistance and a preparation method thereof. [0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: [0005...

Claims

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Application Information

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IPC IPC(8): C09J103/08C09J103/02C09J11/04C09J11/06
Inventor 邱顺建
Owner HANGZHOU MIKABO NEW MATERIAL TECH CO LTD
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