Mineral oil defoaming agent for waterborne coating and preparation method of mineral oil defoaming agent
A water-based paint, mineral oil technology, applied in separation methods, chemical instruments and methods, foam dispersion/prevention, etc., can solve the problem that the performance of defoamer needs to be improved, and achieve the effect of strong versatility
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Embodiment 1
[0019] A mineral oil defoamer for water-based coatings, wherein: in terms of weight percentage, comprising:
[0020] Modified organic polyether 10%;
[0021] White oil 12%;
[0022] Paraffin 15%;
[0023] Octyl alcohol 26%;
[0024] Sulfonated castor oil 31%;
[0025] Emulsifier 5%;
[0026] Catalyst 0.1%;
[0027] Fungicide 0.1%;
[0028] Dispersant 0.8%.
[0029] The present invention also provides the preparation method of the mineral oil defoamer for water-based paints described in embodiment 1, wherein: the above-mentioned raw materials are mixed and stirred for 30 minutes to prepare the mineral oil defoamer for water-based paints.
Embodiment 2
[0031] A mineral oil defoamer for water-based coatings, wherein: in terms of weight percentage, comprising:
[0032] Modified organic polyether 10%;
[0033] White oil 12%;
[0034] Paraffin wax 13%;
[0035] Octyl alcohol 27%;
[0036] Sulfonated castor oil 32%;
[0037] Emulsifier 5%;
[0038] Catalyst 0.2%;
[0039] Fungicide 0.2%;
[0040] Dispersant 0.6%.
[0041] The present invention also provides a method for preparing the mineral oil defoamer for water-based paints described in embodiment 2, wherein: the above-mentioned raw materials are mixed and stirred for 60 minutes to prepare the mineral oil defoamer for water-based paints.
[0042] The mineral oil defoamer for water-based paint of the present invention is a composite product of organic polyether ester, mineral oil and alcohol, refined through a special process. It has the properties of self-emulsification, easy dispersion, strong versatility, good defoaming, and lasting foam suppression. It will not produce surface defects or...
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