Putojimą slopinantys alyvų priedai

Putojimą slopinantys alyvoms priedai

Rūšis

Pagrindas

Panaudojimas, savybės

 

 

 

Molyduval

Additive AS PA

 

 

 

 

 

AF / Poliakrilatas

 

 

Antiputojimo agentai.

Pramoninėms cirkuliacinėms industrinėms guolių, reduktorių, hidraulinių sistemų, neskiedžiamoms metalo pjovimo skirtas antiputojimo priedas, papildant darbinę sistemą 0,05% - 0,3%.

VG 40 klampumo. Gelsvas.

 

 

 

Molyduval

Additive AS SF LM

 

 

 

AF / PAO

 

Maistiniams tepalams skirti AF priedai.

Maistinėms alyvoms skirtas antiputojimo priedas. Tinka tiek parafininėms, tiek pilnai sintetinėms PAO maistinėms reduktorinėms, hidraulinėms ir guolių alyvoms.

USDA H1 maistinė kategorija.

 

 

 

Molyduval

Additive AS SI

 

 

 

AF / Silikonas (PMS)

 

Silikoniniai priedai.

Silikoninės alyvos pagrindo antiputojimo priedas su suderintu ppm.

Įvedimo kiekis : 0,01% - 0,2%.

Skaidrus.

 

 

Molyduval

Additive AS WSF

 

 

AF / PAG

 

 

Specialiai poliglikolių alyvoms skirtas antiputojimo priedas.

Ypač sliekiniams reduktoriams su PG tipo sintetine poliglikolių reduktorine alyva.

 

Putojimą slopinantys agentai "defoamers"

A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably.

In industrial processes, foams pose serious problems. They cause defects on surface coatings. They prevent the efficient filling of containers. A variety of chemical formulas are available to prevent formation of foams.

Alyvos pagrindo : Oil based defoamers

Oil based defoamers have an oil carrier. The oil might be mineral oil, vegetable oil, white oil or any other oil that is insoluble in the foaming medium, except silicone oil. An oil based defoamer also contains a wax and/or hydrophobic silica to boost the performance. Typical waxes are ethylene bis stearamide (EBS), paraffin waxes, ester waxes and fatty alcohol waxes. These products might also have surfactants to improve emulsification and spreading in the foaming medium.

These are heavy duty defoamers and are normally best at knocking down surface foam.

Siikono pagrindo : Silicone based defoamers

Silicone-based defoamers are polymers with silicon backbones. These might be delivered as an oil or a water based emulsion. The silicone compound consists of an hydrophobic silica dispersed in a silicone oil. Emulsifiers are added to ensure that the silicone spreads fast and well in the foaming medium. The silicone compound might also contain silicone glycols and other modified silicone fluids.

These are also heavy duty defoamers and are good at both knocking down surface foam and releasing entrained air.

Polydimethylsiloxane is a widely used antifoaming agent.

Silicone based defoamers are also suitable in non-aqueous foaming systems like crude oil and oil refining. For very demanding applications fluorosilicones may be suitable.