Ultrahigh viscosity cured adhesive powder and preparation method thereof

A cooked rubber powder and viscosity technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of high cost, poor cold water solubility, uneven reaction, etc., and achieve low cost effect

Inactive Publication Date: 2012-04-11
GUANGZHOU GLORYSTAR CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dry method does not require filtration and washing, but the reaction is uneven, the degree of substitution is low, the solubility in cold water is poor, and the viscosity is low.
Wet production consumes a lot of organic solvents, has a lot of three wastes, causes great environmental pollution, high cost, cumbersome process, and long routes

Method used

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  • Ultrahigh viscosity cured adhesive powder and preparation method thereof
  • Ultrahigh viscosity cured adhesive powder and preparation method thereof
  • Ultrahigh viscosity cured adhesive powder and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Produce super high viscosity cooked rubber powder of the present invention according to the following scheme:

[0028] 1. Etherification, cross-linked starch

[0029] Add 300 kg of potato starch into a 1500 liter jacketed kneader that can be heated and cooled, start the kneader, and heat the kneader, add a mixture of 80 kg of etherification agent and 110 kg of absolute ethanol, and add a modifier at the same time 280ml of I and 4kg of modifier II were stirred and reacted at 45°C for 40 minutes to obtain etherified and cross-linked starch.

[0030] 2. Gelatinization, etherification, activation reaction

[0031] First, dissolve 69 kg of catalyst in 105 kg of pure water, cool it to within 35°C, and slowly add it dropwise to the etherified cross-linked starch. Start the kneader and add dropwise while stirring to react. The time for dropping the catalyst is 60 Minutes, the temperature is controlled between 55 ~ 68 ° C; after the catalyst is dropped, immediately add 80 kg o...

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Abstract

The invention discloses ultrahigh viscosity cured adhesive powder and a preparation method thereof. Starch and a cross-linking agent etherifying agent is subjected to cross-linking etherifying activation reaction to obtain a composite modified cured adhesive powder with viscosity of 25,000 mPa.s. The cured adhesive powder prepared by the invention has the advantages of high viscosity, excellent performance, high adhesive strength, wide product application range, simple preparation process, low cost, energy conservation and suitability for industrial production.

Description

technical field [0001] The invention relates to the field of starch modification technology and adhesives for building materials, in particular to cooked rubber powder and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, people pay more and more attention to the decoration quality and grade of living houses, and put forward new requirements for the performance and environmental protection of building materials, which has also become the focus of people's attention. Some building decoration accessories whose performance cannot be guaranteed (mainly due to insufficient viscosity) and do not meet environmental protection requirements must be improved to meet people's requirements for the environment and quality. Putty made of 107 glue, shuangfei powder, talcum powder, lime, etc. is generally used in traditional wall decoration as auxiliary materials. Although this auxiliary material can play a certain role...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/08C09J11/06C09J11/08
Inventor 何生身胡新嵩
Owner GUANGZHOU GLORYSTAR CHEM
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