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A kind of high-performance industrial rubber powder and preparation method thereof

A high-performance, industrial technology, used in starch-derived adhesives, polymer adhesive additives, non-polymer adhesive additives, etc. Product promotion and application issues, to achieve the effect of performance improvement, easy operation and stability

Active Publication Date: 2017-05-17
GUANGZHOU GLORYSTAR CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although general-purpose industrial rubber powder with modified starch as the main base material has obvious advantages in many aspects such as environmental protection, cheapness, renewability and human friendliness, the industrial rubber powder currently produced and used in China, such as Cooked rubber powder generally has problems such as short storage period, unstable product performance, easily digested water, mildew, and low viscosity. These problems have existed in this field and industry for more than ten years, and have not been well received. A good solution will seriously affect the promotion and application of products, and affect the technological progress and development of the industry

Method used

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  • A kind of high-performance industrial rubber powder and preparation method thereof
  • A kind of high-performance industrial rubber powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A novel high-performance industrial rubber powder is prepared according to the following steps:

[0027] A. Mix 100kg of cornstarch with 7.5kg of catalytic aid (anhydrous sodium sulfate and sodium hypochlorite in a weight ratio of 1:2), add 120kg of water to adjust and form a starch milk solution with a mass concentration of about 45%, and add 15% of the mass concentration Sodium hydroxide solution 20kg, gelatinize and alkalinize the starch milk, and keep it for 30 minutes;

[0028] B, starch paste after activation is mixed with 17.5kg ethanol solution to form a uniform mixture, and under the situation of keeping stirring, add 32.5kg of etherification agent (3-chloro-2-hydroxypropyl trimethyl ammonium chloride and Chloroacetic acid is composed of 1:180 by weight), and the temperature is controlled at 30-35°C for 30 minutes;

[0029] C. Add 22.5kg of esterification agent (triethyl phosphate) dropwise to the reaction system, keep the temperature at 50-60° C., add the tim...

Embodiment 2

[0032] A novel high-performance industrial rubber powder is prepared according to the following steps:

[0033] A. Mix 100kg of potato starch with 5kg of catalytic aid (anhydrous sodium sulfate and sodium hypochlorite in a weight ratio of 1:3), add 110kg of water to adjust and form a starch milk solution with a mass concentration of about 47%, and add hydrogen with a mass concentration of 15% Sodium oxide solution 25kg, starch milk gelatinization and alkalization, and keep for 30 minutes;

[0034] B. The starch paste after activation is mixed with 17.5kg ethanol solution to form a uniform mixture. While keeping stirring, add 29kg of etherification agent (3-chloro-2-hydroxypropyltrimethylammonium chloride and chlorine Acetic acid is composed of 1:200 by weight), and the temperature is controlled at 30-35° C. for 30 minutes;

[0035] C. Add 25.5 kg of esterifying agent (being triethyl phosphate) dropwise to the reaction system, keep the temperature at 50-60° C., and add the tim...

Embodiment 3

[0038] A novel high-performance industrial rubber powder is prepared according to the following steps:

[0039] A. Mix 100kg of tapioca starch with 5kg of catalytic aid (anhydrous sodium sulfate and sodium hypochlorite in a weight ratio of 1:3), add 110kg of water to adjust and form a starch milk solution with a mass concentration of about 47%, and add hydrogen with a mass concentration of 15% Sodium oxide solution 25kg, starch milk gelatinization and alkalization, and keep for 30 minutes;

[0040] B. The starch paste after activation is mixed with 17.5kg ethanol solution to form a uniform mixture. While keeping stirring, add 29kg of etherification agent (3-chloro-2-hydroxypropyltrimethylammonium chloride and chlorine Acetic acid is composed of 1:200 by weight), and the temperature is controlled at 30-35° C. for 30 minutes;

[0041] C. Add 25.5kg of esterifying agent (composed of triethyl phosphate and ethyl acetate in a weight ratio of 1:0.05) dropwise to the reaction system...

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Abstract

The invention provides novel high-performance industrial glue powder and a preparation method thereof. Main raw materials of the industrial glue powder comprise the following components in parts by weight: 100 parts of starch, 5-10 parts of catalytic additives, 15-25 parts of a pasting agent, 25-35 parts of an etherifying agent, 20-30 parts of an esterifying agent, 1-5 parts of a stabilizer, 100-150 parts of water and 15-25 parts of ethanol, wherein the stabilizer is a mixture of sodium carboxymethylcellulose and copper sulfate. The novel high-performance industrial glue powder provided by the invention has the characteristics and advantages of instant capability, no caking, high whiteness, high viscosity, high bonding strength, good stability, mildew resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a novel high-performance general-purpose industrial rubber powder and a preparation method thereof. Background technique [0002] The architectural trend in the world today is developing towards a green and environmentally friendly direction. With the continuous improvement of people's living standards, the use of architectural coatings to decorate the interior walls of buildings has become more and more widespread. In my country, the most widely used putty glue is mainly 107 construction glue, but because it contains a large amount of free formaldehyde which is harmful to human body, the Ministry of Construction has banned the use of it on the interior walls of residential buildings and public buildings. [0003] Although general-purpose industrial rubber powder with modified starch as the main base material has obvious advantages in many aspects such as e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/04C09J11/08C09J11/04C08B31/16
Inventor 肖杰屈哲辉魏宁波何宗业曾美婵
Owner GUANGZHOU GLORYSTAR CHEM
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