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Preparation method of leather meal cement foaming agent

A technology of cement foaming agent and leather scraps, which is applied in the field of preparation of protein-based cement foaming agent, can solve the problems of high production cost of surfactants, cure the symptoms but not the root cause, and achieve the advantages of low price, lower production cost and control cost. Effect

Active Publication Date: 2015-06-24
烟台杰来泽皮革制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the current research status of foaming agents, researchers mainly improve a single performance of foaming agents through the compounding of inorganic salts and surfactants, thus treating the symptoms but not the root cause, and the production cost of the surfactants used is high

Method used

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  • Preparation method of leather meal cement foaming agent

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Experimental program
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Effect test

Embodiment 1

[0023] (1) Add the following raw materials in a 250ml three-necked bottle: 40g water, 4g leather shavings (dry weight), 0.3g sodium hydroxide and 0.3g madecassoside, and react under stirring at 80°C 7h, suction filtration under reduced pressure, and centrifugation to obtain the stock solution of the hydrolyzate;

[0024] (2) Adjust the pH of the above-mentioned hydrolyzate stock solution to 6.5, then add 35g of water, and mix evenly to obtain the animal protein cement foaming agent base solution;

[0025] (3), add 0.5g of gum arabic powder, 0.3g of sodium lauryl sulfate, 0.3g of sodium lauryl alcohol ether sulfate and 1 to the animal protein cement foaming agent base liquid obtained in step (2), 0.6 g of 8-dihydroxy-3-carboxyanthraquinone was uniformly mixed at room temperature for 60 minutes to obtain a foaming agent for leather shavings cement.

Embodiment 2

[0027] (1) Add the following raw materials in a 250ml three-necked bottle: 50g water, 6g leather shavings (dry weight), 1g calcium hydroxide and 4.1g madecassoside, react at 100°C for 9h , suction filtration under reduced pressure, and centrifugation to obtain a hydrolyzate stock solution;

[0028] (2) Adjust the pH of the stock solution of the hydrolyzate to 7.5, then add 50 g of sulfuric acid solution with a mass fraction of 40%, and mix evenly to obtain the animal protein cement foaming agent base liquid;

[0029] (3), add 2.0g of triethanolamine, 1.0g of sodium dodecylbenzenesulfonate, 1.0g of sodium dodecyl polyoxyethyl ether sulfate and 1 to the animal protein cement foaming agent base liquid obtained in step (2), 2.1 g of 8-dihydroxy-3-carboxyanthraquinone was mixed and stirred at room temperature for 60 minutes to obtain a foaming agent for leather shavings cement.

Embodiment 3

[0031] (1) Add the following raw materials in a 250ml three-necked bottle: 45g of water, 5g of leather shavings (dry weight), 0.65g of potassium hydroxide and 2.2g of madecassoside, and react under stirring at 90°C 8h, suction filtration under reduced pressure, and centrifugation to obtain the stock solution of the hydrolyzate;

[0032] (2) Adjust the pH of the stock solution of the hydrolyzate to 7, then add 42.5 g of sodium hydroxide with a concentration of 30%, and mix evenly to obtain the base liquid of animal protein cement foaming agent;

[0033] (3) Add 1.25 g of gelatin, 0.65 g of sodium lauryl sulfate, 0.65 g of sodium lauryl polyoxyethylene ether sulfate and 1,8- 1.4 g of dihydroxy-3-carboxyanthraquinone was mixed and stirred at room temperature for 60 minutes to obtain a foaming agent for leather shavings cement.

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Abstract

The invention relates to a preparation method of a leather meal cement foaming agent. The preparation method comprises the following steps: adding water, leather meal and alkali and hydrolyzing at 80-100 DEG C for 7-9 hours; carrying out centrifugal filtration; adding a proper amount of solvent S to the obtained hydrolysate, and keeping the pH neutral, and preparing an animal protein-based cement foaming agent base liquid under the condition; and adding different kinds of foam-stabilizing components and enhancing components to the base liquid, mixing evenly and preparing the animal protein-based cement foaming agent. The obtained foaming agent is high in foaming capacity, fine and uniform in foam, high in stability, low in price, and available in raw material; the tanning solid waste resource utilization way is expanded; if the foaming agent is popularized and applied, the problem of solid waste recycling of the tanning industry can be relatively well solved.

Description

technical field [0001] The invention relates to a preparation method of a protein-based cement foaming agent, in particular to a preparation method of a leather scrap cement foaming agent. Background technique [0002] Cement foaming agent is developed according to the characteristics and technical requirements of cement. In addition to its ability to generate large foam, it also needs to pay special attention to the stability and fineness of foam, as well as the adaptability of foam and cement and other cementitious materials. Since the incorporation of cement foaming agent can make the cement lightweight, heat preservation and heat insulation, and compensate the shrinkage and prestress of the tensioned steel bars, and fully fill the cement gap, it is suitable for non-load-bearing walls, roof insulation layers and other buildings. Industry, as well as thermal insulation of chemical heat pipes and other fields have a wide range of applications. [0003] The main techn...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B38/02
Inventor 王全杰张萌萌贾文欢王晓龙刁屾李运段宝荣魏星星张文斌栾俊
Owner 烟台杰来泽皮革制品有限公司
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