Umhla wokuPoswa:17,JAN,2022

Siliconedefoameryi emulsion emhlophe emhlophe. Isetyenzisiwe kwiinkalo ezahlukeneyo zemizi-mveliso ukusukela ngeminyaka yoo-1960, kodwa uphuhliso olukhawulezileyo olukhulu nolubanzi lwaqala ngeminyaka yoo-1980. Njenge-organosilicondefoamer, imimandla yokusetyenziswa kwayo ibanzi kakhulu, itsala ingqalelo ngakumbi nangakumbi kuzo zonke iinkalo zobomi. Kwimichiza, iphepha, ukutya, ukutya, i-textile, amayeza kunye namanye amacandelo amashishini, i-siliconedefoamersisongezo esiyimfuneko kwinkqubo yemveliso. Ayinakususa amagwebu kuphela kumphezulu wenkqubo yolwelo kwinkqubo yokuvelisa, ngaloo ndlela iphucula ukuhluzwa, ukwahlula, ukufakwa kwegesi, kunye neziphumo zokucoca ulwelo, ukutsalwa, ukuntywila, ukuntywila, ukuphelelwa ngamanzi emzimbeni, ukomiswa kunye nezinye iinkqubo zobuchwepheshe ziqinisekisa ukuba umthamo wezinto ezahlukeneyo zokugcina kunye nezikhongozeli zokusetyenzwa.

Izinto ezilungileyo zei-silicone defoamers:
1. Uluhlu olubanzi lwezicelo: ngenxa yesakhiwo esikhethekileyo sekhemikhali yeoli ye-silicone, ayihambelani namanzi okanye izinto eziqukethe amaqela e-polar, okanye i-hydrocarbons okanye izinto eziphilayo eziqukethe amaqela e-hydrocarbon. Ngenxa yokunganyibiliki kweoli ye-silicone kwizinto ezahlukeneyo, inoluhlu olubanzi lwezicelo. Ingasetyenziselwa ukukhupha amagwebu kwiinkqubo zamanzi kunye nakwiinkqubo ze-oyile.
2. Ukuxinezeleka okuphantsi komhlaba: Umthamo we-oyile ye-silicone ngokuqhelekileyo yi-20-21 dyne / cm, encinci kunaleyo yamanzi (i-72 dyne / cm) kunye nolwelo olunamagwebu ngokubanzi, kwaye lusebenza kakuhle ukukhupha amagwebu.
3. Ukuzinza okuhle kwe-thermal: Ukuthatha i-simethicone esetyenziswa ngokuqhelekileyo njengomzekelo, inokumelana ne-150 ° C ixesha elide kunye ne-300 ° C ixesha elifutshane, kwaye ibhondi yayo ye-Si-O ayiyi kubola. Oku kuqinisekisa ukuba ii-silicone defoameringasetyenziswa kuluhlu olubanzi lobushushu.
4. Ukuzinza kweekhemikhali ezilungileyo: Ekubeni ibhondi ye-Si-O iqinile, ukuzinza kweekhemikhali zeoli ye-silicone kuphezulu kakhulu, kwaye kunzima ukusabela ngeekhemikhali kunye nezinye izinto. Ngoko ke, ukuba uqulunqo lufanelekile,i-silicone defoamerszivumelekile ukuba zisetyenziswe kwiinkqubo eziqulethe i-asidi, i-alkali, kunye neetyuwa.
5. I-inert ye-Physiologically: Ioli ye-Silicone ibonakaliswe ukuba ayinayo ityhefu kubantu nakwizilwanyana, kwaye i-dose ye-half-lethal dose inkulu kune-34 g / kg. Ngoko ke,i-silicone defoamers(kunye ne-emulsifiers efanelekileyo engeyiyo ityhefu, njl.njl.) inokusetyenziswa ngokukhuselekileyo kumashishini okutya, ezonyango, amayeza kunye ne-cosmetic.
6. Amandla amakhulu okukhupha amagwebu:I-Silicone defoamerayikwazi nje ukuphula ngokufanelekileyo i-foam eyenziwe, kodwa inokuthintela kakhulu i-foam kunye nokukhusela ukubunjwa kwe-foam. Ukusetyenziswa kwayo kuncinci kakhulu, okoko nje ukongeza inxalenye enye kwisigidi (1ppm) sobunzima bendawo ekhupha ugwebu, inokuvelisa isiphumo sokubola. Uluhlu lwayo oluqhelekileyo olusetyenziswayo luyi-1 ukuya kwi-100 ppm. Akunjalo kuphela ixabiso eliphantsi, kodwa kwakhona ayingcolisi into edibeneyo.

Ukungalungi kwei-silicone defoamers:
a. I-Polysiloxane inzima ukusabalalisa: I-Polysiloxane inzima ukuchithwa emanzini, ethintela ukusabalalisa kwayo kwinkqubo yamanzi. I-arhente yokusasaza kufuneka yongezwe. Ukuba i-ejenti yokusabalalisa yongezwa, i-emulsion iya kuzinza kwaye umphumo we-defoaming uya kutshintsha. Ihlwempu, kuyimfuneko ukusebenzisa i-emulsifier encinci ukwenza i-defoaming effect ilungile kwaye i-emulsion izinzileyo.
b. I-Silicone i-oil-soluble, enciphisa umphumo wayo wokuhlambalaza kwinkqubo yeoli.
c. Ukumelana nokushisa kwexesha elide kunye nokunganyangeki kwe-alkali.