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Preparation method of enzyme cross-linked mixed protein hydrolysate cement foaming agent

A technology of cement foaming agent and hydrolyzed protein, which is applied in the field of foaming agent, can solve the problems of low technological content, environmental protection and safety hazards in use, low research and development capabilities, etc., and achieve good foaming ratio and foam stability, Good application security, excellent performance effects

Inactive Publication Date: 2016-11-09
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the domestic cement foaming agent market is immature, the product technology content is low, and the research and development ability is relatively low
Plant-based foaming agents, synthetic foaming agents and animal protein-based foaming agents are all used, and most of the products are still at the low end. At the same time, there are still certain hidden dangers in environmental protection and use safety.

Method used

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  • Preparation method of enzyme cross-linked mixed protein hydrolysate cement foaming agent
  • Preparation method of enzyme cross-linked mixed protein hydrolysate cement foaming agent

Examples

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preparation example Construction

[0022] A preparation method of enzyme crosslinking mixed hydrolyzed protein cement foaming agent, the steps are as follows:

[0023] (1) Preparation of the first protein solution raw material: put the ground and dried animal hoof horns into a container, add water, then add sodium bisulfite, mix and soak overnight; place the mixed solution in a 50-60°C Put it in a water bath for 2-3 hours, then raise the temperature of the water bath to 100°C, add calcium hydroxide, and continue hydrolysis at 100°C for 10-12 hours to obtain a hydrolyzed solution, filter the obtained hydrolyzed solution, and adjust the pH to 7-8 spare;

[0024] (2) Preparation of the second protein solution raw material: take degreased and washed animal hair and put it into a container, first add water, then add sodium bisulfite, mix and soak overnight; put the mixed solution in a 50-60°C Put it in a water bath for 1-2 hours, then raise the temperature of the water bath to 100°C, add calcium hydroxide, and cont...

Embodiment 1

[0035] An enzyme crosslinking mixed hydrolyzed protein cement foaming agent comprises the following steps:

[0036] 1) First prepare the first hydrolyzed protein raw material: put 50 g of ground and dried animal hoof keratin into a container, add 1000 mL of water, then add 10 g of sodium bisulfite, and soak overnight. The mixed solution was left in a water bath at 60°C for 2 hours. Then the temperature of the water bath was rapidly raised to 100°C, and Ca(OH) 2 25g, continued hydrolysis at this temperature for 10 hours, filtered the prepared hydrolyzed solution, and adjusted the pH to 7 for later use.

[0037] 2) Preparation of the second hydrolyzed protein raw material: put 50 g of degreased and washed animal hair (human hair, waste cow wool) into a container, add 1000 mL of water, then add 2 g of sodium bisulfite, and soak overnight. The mixed solution was left in a water bath at 60°C for 1 hour. Then the temperature of the water bath was rapidly raised to 100°C, and Ca(...

Embodiment 2

[0046] An enzyme crosslinking mixed hydrolyzed protein cement foaming agent comprises the following steps:

[0047] 1) First prepare the first hydrolyzed protein raw material: put 50 g of ground and dried animal hoof keratin into a container, add 1000 mL of water, then add 7 g of sodium bisulfite, and soak overnight. The mixed solution was left in a water bath at 60°C for 2.5 hours. Then the temperature of the water bath was rapidly raised to 100°C, and Ca(OH) 2 22g, the hydrolysis was continued at this temperature for 11 hours, the prepared hydrolyzed solution was filtered, and the pH was adjusted to 7.5 for later use.

[0048] 2) Preparation of the second hydrolyzed protein raw material: put 50 g of degreased and washed animal hair (human hair, waste cow wool) into a container, add 1000 mL of water, then add 5 g of sodium bisulfite, and soak overnight. The mixed solution was left in a water bath at 60°C for 2 hours. Then the temperature of the water bath was rapidly rais...

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Abstract

The invention belongs to the field of foaming agents, relates to a protein-based cement foaming agent and concretely relates to a preparation method of an enzyme cross-linked mixed protein hydrolysate cement foaming agent. The preparation method comprises preparing a first protein solution raw material, a second protein solution raw material and a third protein solution raw material, mixing the protein solution raw materials according to a mass ratio of the first protein solution, the second protein solution to the third protein solution of 2-10: 5: 1-2, concentrating the mixed solution to a required concentration so that a mixed concentrated protein solution is obtained, adding a transglutaminase into the mixed concentrated protein solution, carrying out uniform stirring, carrying out a reaction crosslinking process for 1.5-2.5h, carrying out enzyme inactivation so that an initial mother liquor of the enzyme cross-linked mixed protein hydrolysate cement foaming agent is obtained and preparing the enzyme cross-linked mixed protein hydrolysate cement foaming agent. In foaming agent preparation, a harmful chemical reagent is avoided and natural polymers are used as raw materials so that the product is safe and nontoxic and has good use safety.

Description

technical field [0001] The invention belongs to the field of foaming agents, and relates to a protein-based cement foaming agent, in particular to a preparation method of an enzyme crosslinking mixed hydrolyzed protein cement foaming agent. Background technique [0002] In recent years, foam concrete has been more and more widely used in the fields of building materials and environmental protection construction because of its good thermal insulation performance, ideal engineering strength, controllable waterproof ability and light weight. At the same time, it is inseparable from high-quality cement foaming agent to prepare high-quality foam concrete that combines various requirements. At present, the domestic cement foaming agent market is immature, the product technology content is low, and the research and development ability is relatively low. Plant-based foaming agents, synthetic foaming agents and animal protein-based foaming agents are all used, and most of the produc...

Claims

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Application Information

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IPC IPC(8): C04B24/14C04B24/38C12P21/00C04B103/42
CPCC04B24/14C04B40/0039C04B2103/42C12P21/00C04B24/16C04B24/2623C04B24/383C04B24/02C04B22/085
Inventor 苏小舟栗蕾
Owner ZHONGYUAN ENGINEERING COLLEGE
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