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
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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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