Ngabe i-polyracrylamide ikhiqizwa kanjani futhi yiziphi izinqubo zobuchwepheshe be-polymerization?
January 03, 2024
Ukukhiqizwa kwePolayirrylamide (Pam) kususelwa kusisombululo esinamanzi se-acrylamide njengento eluhlaza, ngaphansi kwesenzo somqalisi, ukusabela kwe-polymerization kwenziwa, nangemva kokuphothulwa kwe-polyryrylamide gel block ekhiqizwa yi- Ngemuva kokuthi ukusabela sekuqediwe, i-polyacrylamide pellet iyasikwa, igayiwe, yomisiwe futhi ichotshozwa ukukhiqiza imikhiqizo ye-polyrylamide. Inqubo eyisisekelo ukusabela kwe-polymerization, kanye nokucutshungulwa okulandelayo, ukunakwa kufanele kukhokhwe ekupholiseni okwenziwe ngomshini, ukuwohloka okushisayo kanye nokuxhumeka kwesiphambano, ukuze kuqinisekiswe isisindo se-polyculalamide. I-Acrylangaide + Amanzi (I-Initiator / Polymerization) I-Polyryrylamide Gel block ukugcotshwa kokomisa imikhiqizo ye-polyrylamide Ngakho-ke yini ubuchwepheshe be-polymeride polymerization? I-Polymerizamide Technology Technology yokuqala ye-disk polymerization kanye nenqubo ye-polymerization polymerization isiqediwe, futhi manje manje i-conical kettle polymerization inqubo. Ngokuthuthukiswa kobuchwepheshe, isisindo samangqamuzana e-polylacide moleculalamide singalawulwa, sincibilike kalula emanzini kanye nama-monomers asele ngaphansi kwamanzi, ukuze ikhwalithi yomkhiqizo ifana, la maphuzu ajwayelekile, la maphuzu ajwayelekile asephenduke izidingo zemakethe ze ukuphishekela inhloso, kepha futhi ube yisiqondisi sentuthuko ye
ubuchwepheshe bokukhiqiza ama-polyyacrylamide.
Embonini, imvamisa ngokuya ngezici ezahlukahlukene nezidingo ze-aqued Solution Polymerization indlela, ukubuyiselwa kabusha kwe-polymerization, ukubuyiselwa kabusha kwesigaba se-polymerization, indlela yokumiswa kabusha yesigaba se-polymerization ukuthola izinhlobo ezahlukene zemikhiqizo. I-POLMERYIzation ye-1.aQuaCeached I-polymerization ye-homogeneous aquoud edidelization ukukhiqizwa kwe-pam ehamba phambili komlando omude kunawo wonke we-inorganic kanye ne-oxidation-ukunciphisa uhlelo lokuqalisa noma umsunguli we-azo oxcuble-selluble azo, akudingeki ukuthi usebenzise kabusha izixazululo, umkhiqizo ungasetshenziswa ngqo . Ngenxa yamanzi njenge-solvent, uhlelo lunokungcola okumbalwa, kanye nokudluliselwa kwe-chain kuhlala ku-monomer kuya emanzi amnyama kakhulu, ngakho-ke, le ndlela ibonakala ngokumsulwa okuhle kanye nesisindo esihle samangqamuzana. Indlela ye-polymerization yesigaba Indlela ye-polymerization-yesigaba se-polymerization yokulungiselela i-polymacrylamide ingahlukaniswa ibe yi-polymerization eguqulwa kabusha yesigaba se-emulserion, i-polymerization ebuyiselwe emuva, indlela yokumiswa kwe-polymerization, indlela ye-polymerization, indlela ye-polymerization 4. . Ngabe isisombululo esinamanzi se-monomer ngosizo lwamanzi-in-oyela (W / O) emulsifier ahlakazeka kumafutha aqhubekayo e-oyela, ngemuva kokuqalwa kwe-polymerization, umkhiqizo ophumelelayo uyizinhlayiya ezingaphansi kwe-polymer ezichithwe emanzini (100 nm ~ 1000 nm) ekusakazweni kwe-colloidal kawoyela, okungukuthi, i-W / O-Type Latex. . Kubikwa i-polymerization. Okuthiwa yi-microemulsion kuvame ukubhekisa ku-isotropic, ecacile futhi esobala, usayizi we-8nm ~ 80nm thermodymically colloidal, ngezindlela ezahlukahlukene zokwenziwa kwamanzi i-polymer micro-emulsion, ngezinhlayiyana zomfaniswano, ukuqina okuhle nezinye izici.
(3) Indlela yokumiswa kabusha ye-polymerization indlela
Isixazululo esinamanzi e-acrylamisi ekhona phambi kwabasezingeni lokuhlakazeka, bangahlakazwa esimweni semithombo yezindaba ze-organic yokumiswa kwe-polymerization, umkhiqizo wezinhlayiyana zomkhiqizo ngokuvamile ku-1.000-500um. Ngenkathi umkhiqizo usayizi wezinhlayiyana ngobubanzi be-0.1NM ~ 1.0NM, okwaziwa ngokuthi yi-Columnar Polymerization. Ekumisweni kwe-polymerization, ikhambi elinamanzi e-acrylamide e-span-60, i-inorganic acid, ama-acidia acidia noma amanye ama-cellulose acetate kanye nezinye izitebele zokuhambisa akhona ngophethiloli, i-xylene, i-perchlorethylene ukwakha ukumiswa okuzinzile, kubangelwa yi-poly-polymerization. (4) Indlela Ye-Pelipitation Polymerization Le acrylamide polymerization yenziwa ku-organic solvents noma izixazululo ezixubile zamanzi ne-organic. Le mithombo yabezindaba i-solvents ye-monomer nama-non-solvents we-polymer polylacrylamide. Ngakho-ke, ukuqala kwengxube ye-polymerization reaction inhlanganisela, futhi kwinqubo yokusabela kwe-polymerization, uPam we-Flecculonizant wake wakhiqizwa ekuvumeni kwezulu, ukuze uhlelo lokuphendula lubonakale lubili. Ngakho-ke, i-polymerization yenziwa ngohlelo olungelona iqiniso, olwaziwa ngokuthi yi-polymerization. 3.Solid State polymerization indlela (eyaziwa nangokuthi indlela yemisebe) I-ACRIDE (AM) ingaqalwa yindlela yemisebe ye-radiation yokuphendula okuqinile kwe-polymerization. Amakristalu e-Acrylamide 0-60 ° C nge-γ-ray irradiation, bese ususa umthombo wemisebe, ongabanjiswa ngamazinga okushisa aphezulu; Ekukhanyiseni kwe-ultraviolet nakho kungaba yi-polymerized. Ukusabela kwe-polymerization kwenzeka ebusweni bamakristalu, ngakho-ke ubukhulu bawo buba yinto elawulwayo, futhi izinga le-polymerization liphansi kunase-γ-ray irradiation, ngakho-ke ama-polymers ahlushwa kakhulu futhi anesisindo esiphansi se-molecular. Ngaphezu kwalokho, lapho izinga lokushisa likhuphuka, i-polymer ingahle iguqulwe, futhi le ndlela ngokwayo inzima kakhulu ukuqeda ukushisa, futhi ukusatshalaliswa kwesisindo kwamangqamuzana kwemikhiqizo etholakele kubanzi kakhulu, ngakho-ke akuzange kwenziwe ngezimboni ezinkulu ukukhiqiza, kepha kuphela esigabeni selebhu yocwaningo.
