A kind of environment-friendly release agent for aerated bricks and preparation method thereof

A technology of release agent and aerated bricks, which is applied in lubricating compositions and the petroleum industry, 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: 2022-06-17
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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  • A kind of environment-friendly release agent for aerated bricks and preparation method thereof
  • A kind of environment-friendly release agent for aerated bricks and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A mold release agent for air-entrained bricks, which is composed of the following components by mass percentage: 35% of 150N type environment-friendly base oil, which is composed of dodecyl alcohol polyoxyethylene (9) ether and sorbitan monohydrate in a mass ratio of 1:1. The composite emulsifier is composed of 2% oleic acid ester, 1.5% hydroxyethyl cellulose, 1.5% ethyl parahydroxybenzoate, and the rest is water.

[0028] The preparation method is:

[0029] Step 1, under normal temperature and pressure, firstly mechanically stir the 150N type environmentally friendly base oil and the composite emulsifier, the speed is 1000r / min, and the time is 10min, then add water and continue to stir, the speed is 1000r / min, and the time is 50min, to form an emulsion;

[0030] Step 2, when the emulsion becomes milky white, add 1.5% of hydroxyethyl cellulose and 1.5% of ethyl p-hydroxybenzoate, continue stirring, the rotation speed is 1000r / min, and the time is 1h to form a stable e...

Embodiment 2

[0035] A mold release agent for air-entraining bricks, which is composed of the following components by mass percentage: 45% of 250N type environment-friendly base oil, composed of glycerol monostearate and polyoxyethylene (20) sorbitan in a mass ratio of 1:2 The compound emulsifier composed of alcohol monooleate is 3%, the acrylate polymer is 1%, the oleate is 2%, and the rest is water.

[0036] The preparation method is:

[0037] Step 1, under normal temperature and pressure, firstly mechanically stir the 250N type environmentally friendly base oil and the composite emulsifier, the speed is 300r / min, and the time is 15min, and then water is added to continue stirring, the speed is 300r / min, and the time is 45min, to form an emulsion;

[0038] Step 2, when the emulsion becomes milky white, add 1% of acrylate polymer and 2% of oleate and continue to stir, the rotation speed is 300r / min, and the time is 1.5h to form a stable emulsion discharge. It is determined that the releas...

Embodiment 3

[0042]A mold release agent for air-entrained bricks, which is composed of the following components by mass percentage: 50% of 500N type environment-friendly base oil, composed of polyoxyethylene laurate (9) ester and dodecylamine polyoxyethylene with a mass ratio of 1:1:1 The composite emulsifier composed of ethylene (10) ether and alkanolamide 6501 is 1.5%, the water-soluble starch is 1.5%, the dodecenylsuccinic acid is 2%, and the balance is water.

[0043] The preparation method is:

[0044] Step 1, under normal temperature and pressure, firstly mechanically stir the 500N type environmentally friendly base oil and the composite emulsifier, the speed is 700r / min, and the time is 20min, then add water and continue to stir, the speed is 700r / min, and the time is 50min, to form an emulsion;

[0045] Step 2, when the emulsion becomes milky white, add water-soluble starch 1.5% and dodecenylsuccinic acid 2% and continue to stir, the rotation speed is 700r / min, and the time is 2h ...

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Abstract

The invention discloses an environmentally friendly release agent for aerated bricks and a preparation method thereof, and relates to the technical field of new building materials. The mass percentages of the components in the release agent are as follows: 25% to 50% of environmentally friendly base oil, 5‰ to 4% of composite emulsifier, 1‰ to 2% of tackifying polymer, 1% to 2% of functional additives, The remaining amount is water; the preparation method includes the following steps: a) fully stir the environment-friendly base oil and the compound emulsifier first, and then add a certain amount of water b) add the viscosifying polymer to continue stirring for 1 ~ After 2 hours, a stable milky white emulsion discharge was formed. On the one hand, the invention solves the pollution problem caused by using waste engine oil in the traditional release agent, on the other hand, it can make the brickwork form a uniform and smooth surface, saving material cost.

Description

technical field [0001] The invention relates to the technical field of novel building materials, in particular to an environment-friendly mold release agent for air-entrained bricks and a preparation method thereof. Background technique [0002] Air-entrained concrete blocks have light weight, high strength, fire resistance and heat preservation and good processing performance. Compared with traditional building materials, it can greatly reduce the self-weight of the building. In the load-bearing structure, the material cross-sectional area can be reduced to improve the stability and flexibility of the building. 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, adds emulsifier, stirs with water and emulsifies evenly, and then rolls or sprays it onto the surface of the formwork. Since waste oil contains waste acids...

Claims

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Application Information

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Patent Type & Authority Patents(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 杨志杨瑞卿陈力军李绩桑颖慧郑力菲阎旭苏史毅清贾迎泽
Owner 山西省建筑科学研究院集团有限公司
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