Alkyl modified organosiloxane
As mentioned earlier, polyether modified polysiloxanes have some shortcomings; Alkyl modified polysiloxanes have precisely these advantages.
This series of polysiloxane products also belong to the comb structure. The molecular weight of this type of product is relatively small, around 10000, and n+m is about 30-50. The main purpose of modifying with alkyl is to improve thermal stability, compatibility, and unstable foaming, and even to have defoaming functions. However, as the modified alkyl chain increases, its ability to reduce surface tension also decreases
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Kenya Advantages of water-based mineral oil in water-based paint systems:
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Organosilicon type UV curing defoamer can reduce tension on the surface of coatings, have excellent defoaming and foam inhibiting capabilities, and have little effect on the gloss of the coating film under different environmental factors. However, when not used properly, they can cause poor recoating performance, uneven surface such as film shrinkage, and polyether type defoamers have high compatibility requirements and weak defoaming capabilities.
The water-based mineral oil UV curing defoamerhas a fast defoaming speed and a foam inhibiting effect of up to several hours, which is also well matched with the foam system. It can be carried out in harsh environments such as high temperatures and strong alkalis, with good results. After use, there will be no phenomena such as oil bleaching and demulsification
