Ingabe i-silicone ingeyemikhiqizo yepulasitiki?
Ijeli ye-silica i-colloidal material eyenziwe nge-silicate, eyakhiwe ikakhulukazi i-silica, amanzi kanye nama-silicone monomers.Ijeli ye-silica inezici zokunwebeka okuphezulu, ukucaca okuphezulu, ukuzinza okuphezulu nokumelana nokushisa okuphezulu, ngakho-ke isetshenziswa kabanzi emikhakheni ehlukahlukene.Nakuba ijeli ye-silica ifana nepulasitiki kwezinye izakhiwo, ayiyona eyemikhiqizo yepulasitiki ngokombono wesakhiwo samakhemikhali kanye nenqubo yokulungiselela.
Okokuqala, kukhona umehluko osobala ekwakhekeni kwamakhemikhali e-silicone nepulasitiki.Amapulastiki ngokuvamile akhiwa amakhompiyutha aphezulu amangqamuzana, akhiqiza ama-molecule amaketanga amade ngokusebenzisa i-polymerization, yakhe isakhiwo esifanayo esiqhubekayo.Ijeli ye-silica yakhiwe ngokuyinhloko ngamabhondi e-silico-oksijeni, enza isakhiwo senethiwekhi.Isakhiwo esikhethekile sesibopho se-silico-oksijeni senza ijeli ye-silica ibe nezici zezinto eziqinile ze-colloidal, kanti amapulasitiki ngokuvamile ayizinto ezithambile ze-colloidal.
Okwesibili, kukhona nomehluko osobala phakathi kwejeli ye-silica nepulasitiki enqubweni yokulungiselela.Ukulungiswa kwamapulasitiki ngokuvamile kwenziwa ngokuncibilika okushisayo, ukukhishwa, ukubunjwa komjovo kanye nezinye izindlela zokucubungula ukwenza imikhiqizo yobumo nobukhulu obuhlukene.Ukulungiswa kwejeli ye-silica kwenziwa ikakhulukazi ngokusabela kwejeli ye-hydrated colloid, edinga ukulawula izimo zokusabela, isilinganiso kanye nenani le-pH namanye amapharamitha, bese ngokumisa nokubala nezinye izinyathelo, ukuze yakhe i-silico-. inethiwekhi yebhondi ye-oxygen, futhi ekugcineni yalungiswa yaba imikhiqizo ye-silicone.
Ngaphezu kwalokho, kukhona umehluko phakathi kwe-silicone nepulasitiki emvelweni nasekusetshenzisweni.Izici ezivamile zamapulasitiki ziyi-insulation enhle, amandla emishini kanye nokuzinza kwamakhemikhali, njll, ezisetshenziswa kakhulu ekuphileni kwansuku zonke, ukukhiqizwa kwezimboni kanye namasimu kagesi.Ijeli ye-silica inokuqina okuhle kokushisa, ukumelana nokugqoka kanye nokungabi namakhemikhali amakhemikhali futhi isetshenziswa kakhulu ekudleni, ezokwelapha, kwezobuchwepheshe kanye nezindiza kanye neminye imikhakha.Izicelo ezivamile zemikhiqizo ye-silicone zihlanganisa umlomo webhodlela le-silicone, amasongo e-silicone kanye nezimpawu ze-silicone.
Kafushane, nakuba ijeli ye-silica ifana nepulasitiki kwezinye izakhiwo, kunomehluko osobala phakathi kwejeli ye-silica nepulasitiki ngokwesakhiwo samakhemikhali, inqubo yokulungiselela kanye nezinkambu zokufaka isicelo.Ijeli ye-silica iyisici esiyingqayizivele se-colloidal esinezici zayo eziyingqayizivele kanye nenani lesicelo.Ngakho-ke, i-silicone ayiyona ingxenye yemikhiqizo yepulasitiki.
Isikhathi sokuthumela: Nov-07-2023