Tus neeg ua npuas dej tiam thib peb yog cov tshuaj ua npuas dej silicone raws li polydimethylsiloxane (PDMS, dimethyl silicone roj). Tam sim no, kev tshawb fawb thiab kev siv cov neeg ua npuas dej tiam no feem ntau yog tsom mus rau hauv Suav teb. PDMS yog tsim los ntawm cov saw hlau oxygen silicon thiab lwm cov pab pawg organic, thiab tsis tuaj yeem teeb tsa nruj rau ntawm cov zaj duab xis ua npuas dej, yog li cov npuas yuav tawg. Cov viscosity qis PDMS muaj cov khoom ua npuas dej zoo thiab cov viscosity siab PDMS muaj cov khoom ua npuas dej zoo.
Qhov zoo ntawm cov silicone defoamer
Nws muaj cov tshuaj lom neeg zoo thiab nyuaj rau cuam tshuam nrog lwm yam tshuaj. Nws tuaj yeem siv rau hauv cov kua qaub, alkali thiab ntsev.
Kev ua haujlwm zoo ntawm lub cev, siv tau rau hauv kev lag luam zaub mov thiab tshuaj, thiab tsis muaj kuab paug rau ib puag ncig.
Nws muaj kev ruaj khov zoo thermal thiab tsawg volatility, thiab tuaj yeem siv rau hauv ntau qhov kub thiab txias.
Qhov viscosity qis thiab kis tau sai ntawm qhov sib tshuam roj-kua.
Qhov nro ntawm qhov chaw qis li 1.5-20 Mn / M (76 Mn / m rau dej).
Nws tsis yooj yim kom yaj los ntawm surfactant hauv lub kaw lus foaming.
Tsawg koob tshuaj, tsawg viscosity thiab tsawg flammability.
Qhov tsis zoo ntawm cov silicone defoamer
1. Nws nyuaj rau disperse hauv dej system.
2. Vim tias nws yaj tau hauv roj, qhov ua rau cov roj tsis ua npuas.
3. Tsis kam kub siab.
4. Tsis kam ua rau muaj zog alkalinity.
Tus nqi siab:PDMS yog cov dej hauv roj (O/W) emulsion ua los ntawm silicone roj, emulsifier, thickener, thiab lwm yam, uas yog emulsified los ntawm dej. Qhov kev nruj ntawm qhov chaw txo qis sai thiab muaj zog tiv thaiv foaming thiab tiv thaiv foaming. Nws yog faib ua peb hom: silicone roj, silicone roj + hloov kho polyether thiab polyether hloov kho silicone roj.
Nws yog tus cwj pwm los ntawm:Kev nruj ntawm qhov chaw qis, kev ua haujlwm ntawm qhov chaw siab thiab lub zog ua npuas ncauj muaj zog.
Tsawg dua koob tshuaj:Nws tuaj yeem tiv thaiv thiab rhuav cov npuas rau feem ntau cov khoom siv npuas.Nws muaj kev ruaj khov thermal zoo thiab siv tau rau hauv ntau qhov kub thiab txias.Nws yog sib koom nrog polyether thiab muaj cov nyhuv synergistic.Nws yog dav siv rau kev tshem tawm cov npuas dej hauv cov tshuaj ntxuav tes, kev ua ntawv, pulp, kev ua qab zib, electroplating, tshuaj chiv, cov khoom ntxiv, kev kho dej khib nyiab thiab lwm yam txheej txheem tsim khoom. Hauv kev lag luam roj av, nws yog dav siv rau kev tshem tawm cov roj av kom nrawm dua kev sib cais roj-roj; Nws kuj tseem siv los tswj lossis tshem tawm cov npuas dej hauv cov khoom siv xws li ethylene glycol ziab, aromatic hydrocarbon extraction, asphalt processing thiab lubricating roj dewaxing. Hauv kev lag luam textile, nws yog siv rau kev tshem tawm cov npuas dej hauv kev zas xim, scouring, sizing thiab lwm yam txheej txheem; Nws yog siv rau hauv cov txheej txheem tshuaj emulsion thiab defoaming hauv kev lag luam; Nws yog siv rau kev tshem tawm cov npuas dej hauv ntau yam kev sib xyaw, fermentation thiab distillation hauv kev lag luam zaub mov.
Lub sijhawm tshaj tawm: Tsib Hlis-05-2022