No Panon so Panaggawa na Defoaming Agent

Say panag-bula ed saray coating film so nayarin pansengegan na saray depekto ed tapew singa saray fisheyes, craters, o pinholes. Pian agla itan naulit, saray formulator so manguusar na saray additive ya antifoam tan defoamer – balet say panagpili tan panag-ebalwa ed saraya so mankaukolan na aralem ya kakabatan nipaakar ed mekanismo na panag-gagalaw da ed nanduruman sistema na coating.

Say epektibon defoamer et nepeg ya natunaw ed medium ya manbubula, maples ya onloob ed saray lamella na bula, tan maples ya onkalat ed interface na gas-likido.

Polydimethylsiloxane (PDMS)

Say PDMS et sakey ya makatipid tan biocompatible a materyal ya dakel so usar to ed microfluidics. Nayarin ikabit ed saray polymer, salming, tan metal a parte pian makaporma na saray akalugan a gamit; usaren bilang electroosmotic pumping membrane tan anggan manggawa na pattern panamegley na photoresist pian makaporma na saray microfluidic channel.

Pian nasolusyonan iya, say PDMS et nayarin i-oxidize panamegley na oxygen plasma, ya mangilulukas na saray hydroxyl group ed tapew to ya man-react ed saray singaw na silyl chloride pian makaporma na terminal group ya pan-reactan na saray defoaming agent. Bilang resulta, saray defoaming agent ya nireact ed sayan tapew et mas daiset so panag-bula tan inhibisyon da nen say saray tradisyonal ya silicone defoaming additive, tan ontan met, ag-ira makasamal, mainomay ya ikalat, tan thermally stable no ikumpara ed saray kapara dan silicone.

Saray Silicone ya Larak

Say mekanismo na panag-ekal na bula na saray silicone oil et manasasalat ed pandumaan na specific gravity na aqueous humor tan silicone oil, no iner say mas atagey ya specific gravity na aqueous humor so manpapa-leksab ed satan diad loob na saray vitreous cavity, legan a say mas abeba ya specific gravity na silicone oil so manpapa-lutaw ed satan, ya mangagawa na tinawag ya buoyancy forces ya mangipapangato ed satan.

Saray medical-grade a silicone oil et epektibon defoaming agent lapud mas maga-an ira nen say danum tan babalewen da so surface tension pian nabetakan iray bula na bula. Niarum ni, aliwa iran makasamal tan mainomay iran natunaw ed saray aqueous solution.

Saray silicone-based antifoaming agents et mankaukolan na atagey a konsentrasyon na silicones ya nayarin makasamal tan makaderal ed bunigas na too, legan a saray larak a nanlapud tanaman singa say jojoba oil et walay kaparehon abilidad ya man-antifoam balet mas abeba so epekto to; niarum ni, lapud abeba so laman dan danum, mas mairap so panagkalat da nen say iilaloan.

Mga larak a mineral

Saray mineral oil et kolorless tan andi-angob a laok na saray atagtagey ya alkane ya nanlapud mineral a nanlapuan, ya nagagawa bilang byproduct manlapud proseso na krudo pian magmaliw ya saray produkto na petrolyo. Diad awaran, kabat da met bilang amputi o paraffin oil lapud ag-eksakton ngaran da ya mangipapanengneng ya mabetbet ya ag-kaukolan o ag-labay ya naamtaan na saray komersyante so eksakton komposisyon na balang mineral oil ya ilalako o uusaren bilang produkto (Unonan inusar so “mineral oil” nen 1771 unong ed Merriam-Webster!).

Say mineral oil et nayarin lalon puruen para ed saray gamit ed industriya pian ekalen iray aditibo ya posiblin makaderal ed panagkonsumo na too, ya mangagawa na pinuron mineral lubricant ya angkop para ed saray produkto na kakanen tan parmasyutiko ya nayarin mikasalat ed kakanen, kaiba la so antokaman ya posiblin isyu na aksidentin pakikasalat ed kakanen.

Saray food grade mineral oil et kaslakan ya andi-lasa tan andi-angob ya lana ya natutunaw ed danum ya mangiiter na sankaabigan ya proteksyon kontra ed kalawang, kanian ligtas iraya no direktan makasagid ed baog. Niarum ni, ontutulong iraya ya ag-onkulang so danum ed laman diad panamegley na pan-aksyon da bilang proteksyon ya manlilimita ed paka-ekal na danum manlapud baog.

Defoamer ya natunaw ed danum

Say water-soluble a defoamer et mangiiter na sankaabigan a kalidad na panag-ekal na bula tan nayarin gawaen panamegley na panag-laok na sakey a polyether modified organic silicon compound ed saray lower alcohols, surfactants, tan silica. No ikumpara ed saray tradisyonal a mineral oil, sayan defoamer et mangiiter na bintaha na predispersion tan mas daiset so enerhiya ya kaukolan pian naisalak ed saray coating system.

Say defoaming agent et onggagana diad ag-panlulo to ed nampapabula a medium tan diad panamegley na ag-pankapit na saray molekula ed tapew na pelikula, kanian napapaliisan to ya ag naipawil na saray surfactant a walaan na foam stabilization so elastisidad na pelikula diad panamegley na Marangoni effects, tan sirin et napapaliisan to so pampabula. Niarum ni, say defoamer et onggagana diad panamegley na panag-udyok to ed panag-agus na likido a pelikula manlapud saray bula na bula, pian onbetak iraya.