Isizukulwana sesithathu i-defoamer yi-silicone defoamer esekelwe kwi-polydimethylsiloxane (PDMS, i-dimethyl silicone ioli).Okwangoku, uphando kunye nokusetyenziswa kwesi sizukulwana se-defoamers sigxininiswe e-China.I-PDMS yenziwe nge-silicon oxygen chain kunye namanye amaqela e-organic, kwaye ayikwazi ukulungiswa ngokuqinileyo kwifilimu yolwelo lwe-foam, ukwenzela ukuba amaqamza agqabhuke.I-PDMS ye-viscosity ephantsi inepropathi efanelekileyo yokukhupha ugwebu kunye ne-viscosity ephezulu ye-PDMS inepropathi efanelekileyo yokukhupha ugwebu.
Izinto eziluncedo ze-silicone defoamer
Ine-inertia elungileyo yeekhemikhali kwaye kunzima ukusabela ngezinye izinto.Ingasetyenziselwa kwisisombululo se-asidi, i-alkali kunye netyuwa.
I-inertia efanelekileyo ye-physiological, ingasetyenziselwa kumashishini okutya kunye namayeza, kwaye ayinakungcoliseka kwendalo.
Inozinzo oluhle lwe-thermal kunye nokuguquguquka okuphantsi, kwaye ingasetyenziselwa kuluhlu olubanzi lobushushu.
I-viscosity iphantsi kwaye isasazeka ngokukhawuleza kwi-interface ye-gas-liquid.
Uxinzelelo lomphezulu luphantsi njenge-1.5-20 Mn / M (76 Mn / m yamanzi).
Akulula ukunyibilikiswa yi-surfactant kwinkqubo yogwebu.
Idosi ephantsi, i-viscosity ephantsi kunye nokutsha okuphantsi.
Ukungalungi kwe-silicone defoamer
1. Kunzima ukusabalalisa kwinkqubo yamanzi.
2. Ngenxa yokuba i-soluble kwioli, i-defoaming effect kwinkqubo yeoli iyancitshiswa.
3. Ukumelana nobushushu obuphantsi.
4. Ukuchasana okungalunganga kwi-alkalinity enamandla.
Iindleko eziphezulu:I-PDMS ngamanzi e-oyile (O / W) i-emulsion eyenziwe ngegrisi ye-silicone, i-emulsifier, i-thickener, njl., e-emulsified ngamanzi.Uxinzelelo lomphezulu luyancipha ngokukhawuleza kwaye lunempembelelo eyomeleleyo yokuchasa ugwebu kunye neziphumo zokuchasa ugwebu.Yahlulahlulwe ngokufanelekileyo ngokweendlela ezintathu: ioli ye-silicone, ioli ye-silicone + i-polyether elungisiweyo kunye ne-polyether eguqulwe ioli ye-silicone.
Ibonakaliswa ngu:Ukuxinezeleka okuphantsi komhlaba, umsebenzi ophezulu womphezulu kunye negunya elinamandla lokukhupha amagwebu.
Idosi encinci:Inokuthintela kwaye yaphule amaqamza kumajelo eendaba amaninzi.Inozinzo oluhle lwe-thermal kwaye lunokusetyenziswa kuluhlu olubanzi lobushushu.Yabelana nge-polyether kwaye ine-synergistic effect.Isetyenziswa ngokubanzi ukuthoba amagwebu kwisicoci, ukwenza iphepha, ipulp, ukwenza iswekile, i-electroplating, isichumisi sekhemikhali, izongezo, ukucocwa kwamanzi amdaka kunye nezinye iinkqubo zokuvelisa.Kwishishini le-petroleum, lisetyenziswa ngokubanzi kwi-desulfurization yegesi yendalo ukukhawulezisa ukwahlula kwe-oyile-gesi;Ikwasetyenziselwa ukulawula okanye ukucinezela amaqamza kwizixhobo ezinje nge-ethylene glycol drying, i-aromatics hydrocarbon extraction, ukusetyenzwa kwe-asphalt kunye nokuthambisa i-oyile yokuthambisa.Kushishino lwamalaphu, isetyenziselwa ukuthoba amagwebu ekudayeni, ukukhuhla, ukulinganisa kunye nezinye iinkqubo;Isetyenziswe kwinkqubo ye-emulsion yeekhemikhali kunye ne-defoaming kumashishini;Isetyenziselwa ukukhupha amagwebu kwiinkqubo ezahlukeneyo zokuxilisa, ukuvutshelwa kunye ne-distillation kwishishini lokutya.
Ixesha lokuposa: May-05-2022