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Environment-friendly release agent for aerated bricks and preparation method thereof

A technology of release agent and aerated bricks, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of great harm to the human body and the environment, long preparation cycle, complicated process, etc., and achieve no material residue, good demoulding effect, Surface clean and tidy effect

Active Publication Date: 2020-05-29
山西省建筑科学研究院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the prior art that the use of waste engine oil or waste diesel oil is harmful to the human body and the environment, and the use of vegetable oil to replace part of waste engine oil or waste diesel oil is toxic and carcinogenic, and at the same time, the preparation cycle is long, the process is complicated and the cost is high. The present invention provides A preparation method of an environmentally friendly release agent for aerated bricks, which improves the operating environment and improves the release effect

Method used

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  • Environment-friendly release agent for aerated bricks and preparation method thereof
  • Environment-friendly release agent for aerated bricks and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An aerated brick release agent, which consists of the following components in mass percentage: 35% of 150N type environmental protection base oil, lauryl alcohol polyoxyethylene (9) ether and sorbitan mono Composite emulsifier composed of oleic acid ester 2%, hydroxyethyl cellulose 1.5%, ethyl p-hydroxybenzoate 1.5%, and the balance is water.

[0028] The preparation method is:

[0029] Step 1. Under normal temperature and pressure, mechanically stir the 150N environmentally friendly base oil and the compound emulsifier at a speed of 1000r / min for 10 minutes, then add water and continue stirring at a speed of 1000r / min for 50 minutes. form an emulsion;

[0030] Step 2, when the emulsion turns milky white, add 1.5% hydroxyethyl cellulose and 1.5% ethyl p-hydroxybenzoate and continue to stir at a speed of 1000r / min for 1 hour to form a stable emulsion and discharge it. After testing, demould The viscosity of the emulsion at 25°C is 430mPa·S.

[0031] Centrifuge the air...

Embodiment 2

[0035] A release agent for air-entrained bricks, consisting of the following components by mass percentage: 45% of 250N type environmental protection base oil, glycerol monostearate and polyoxyethylene (20) sorrel with a mass ratio of 1:2 The compound emulsifier composed of alcohol monooleate is 3%, acrylate polymer 1%, oleate 2%, and the rest is water.

[0036] The preparation method is:

[0037] Step 1. Under normal temperature and pressure, first mechanically stir the 250N type environmental protection base oil and the compound emulsifier at a speed of 300r / min for 15 minutes, then add water and continue stirring at a speed of 300r / min for 45 minutes. form an emulsion;

[0038] Step 2, when the emulsion becomes milky white, add 1% of acrylate polymer and 2% of oleic acid ester to continue stirring, the rotation speed is 300r / min, and the time is 1.5h, forming a stable emulsion and discharging. After measurement, the release agent emulsion is 25 The viscosity at °C is 510m...

Embodiment 3

[0042]An air-entraining brick release agent, consisting of the following components in mass percentage: 50% of 500N type environmental protection base oil, polyoxyethylene laurate (9) ester and dodecylamine polyoxygen in a mass ratio of 1:1:1 Compound emulsifier composed of vinyl (10) ether and alkanolamide 6501 is 1.5%, water-soluble starch is 1.5%, dodecenylsuccinic acid is 2%, and the balance is water.

[0043] The preparation method is:

[0044] Step 1. Under normal temperature and pressure, mechanically stir the 500N type environmentally friendly base oil and the compound emulsifier at a speed of 700r / min for 20 minutes, then add water and continue stirring at a speed of 700r / min for 50 minutes. form an emulsion;

[0045] Step 2, when the emulsion becomes milky white, add 1.5% of water-soluble starch and 2% of dodecenylsuccinic acid and continue to stir at a speed of 700r / min for 2 hours to form a stable emulsion and discharge it. After testing, the release agent The vi...

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Abstract

The invention discloses an environment-friendly release agent for aerated bricks and a preparation method of the environment-friendly release agent, and relates to the technical field of novel building materials. The release agent comprises the following components in percentage by mass: 25-50% of environment-friendly base oil, 0.5-4% of a compound emulsifier, 0.1-2% of a tackifying polymer, 1-2%of a functional additive and the balance of water. The preparation method comprises the following steps: (a) fully stirring the environment-friendly base oil and the compound emulsifier, and then adding a certain amount of water; and (b) adding the tackifying polymer when the emulsion becomes milk white, continuing to stir for 1-2 hours to form a stable milk white emulsion, and discharging the emulsion. On one hand, the pollution problem caused by waste engine oil adopted by a traditional release agent is solved, and on the other hand, a uniform and smooth surface can be formed for brickwork,and the material cost is saved.

Description

technical field [0001] The invention relates to the technical field of new building materials, in particular to an environmentally friendly release agent for aerated bricks and a preparation method thereof. Background technique [0002] Air-entrained concrete blocks are light, high-strength, fire-resistant and heat-resistant, and have good processing properties. Compared with traditional building materials, they can greatly reduce the weight of buildings. In load-bearing structures, the cross-sectional area of ​​materials can be reduced to improve the stability and flexibility of buildings. It is an ideal new building material to improve the thermal insulation effect of the wall. [0003] At present, the release agent of air-entrained concrete blocks mainly uses waste engine oil or waste diesel oil, which is added with emulsifier and water to stir and emulsify evenly, and then roll or spray on the surface of the formwork. Because waste engine oil contains waste acids, heavy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10N40/36C10N30/02
CPCC10M173/00C10M2209/104C10M2209/108C10M2209/12C10M2207/289C10M2207/284C10M2209/084C10M2207/281C10M2209/109C10M2217/06C10M2215/08C10M2207/127C10M2229/041C10M2219/044C10M2217/045C10M2201/103C10M2219/104
Inventor 陈力军杨瑞卿杨志李绩桑颖慧郑力菲闫旭苏史毅清贾迎泽
Owner 山西省建筑科学研究院集团有限公司
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