izindaba

I-Polyethylenimine(PEI)iyi-polymer encibilika emanzini. Ukugxila emanzini emikhiqizo yokuhweba kuvame ukuba ngu-20% kuya ku-50%. I-PEI yenziwe i-polymerized kusuka ku-ethylene imide monomer. I-polymer ye-cationic evame ukubonakala njengoketshezi olungenambala ukuya kokuphuzi noma oluqinile olunezinhlobonhlobo zesisindo samangqamuzana nokuhlukahluka kwesakhiwo.

Yinii-polyethyleneimineumsebenzi?

1. Ukunamathela okuphezulu, iqembu le-amino elimunca kakhulu lingasabela neqembu le-hydroxyl ukuze lenze isibopho se-hydrogen, iqembu le-amine lingasabela neqembu le-carboxyl ukuze lenze isibopho se-ionic, iqembu le-amine lingasabela neqembu le-carbon acyl ukwakha isibopho esivumelanayo. Ngesikhathi esifanayo, ngenxa yeqembu layo le-polar (i-amine) ne-hydrophobic group (vinyl) isakhiwo, lingahlanganiswa nezinto ezahlukene. Ngala mandla ahlanganisayo aphelele, angasetshenziswa kabanzi emikhakheni yokuvala, uyinki, upende, i-binder nokunye.

2. I-High-cationic polyvinyl imide ikhona ngendlela ye-polycation emanzini, enganciphisa futhi ikhangise zonke izinto ze-anionic. Iphinde ihlahle ama-ion ensimbi. Ngezakhiwo zayo eziphakeme ze-cationic, ingasetshenziswa ekwenzeni iphepha, ukwelashwa kwamanzi, isisombululo se-plating, i-dispersant nezinye izinkambu.

3. I-polyethylenimine esebenza kakhulu ngenxa ye-amine eyinhloko nesesibili esebenzayo, ngakho-ke ingasabela kalula nge-epoxy, ama-acids, ama-isocyanate compounds namagesi e-asidi. Ukusebenzisa lesi sakhiwo, singasetshenziswa njenge-epoxy reactant, i-aldehyde adsorbent kanye ne-ejenti yokulungisa umbala.

I-polyethylenimine isetshenziselwa ini?

I-Polyethylenimine (PEI)iyinhlanganisela ye-polymer enemisebenzi eminingi ehlukahlukene esetshenziswayo, kufaka phakathi kodwa engagcini nje:

1. Ukwelashwa kwamanzi kanye nemboni yephepha. Njenge-ejenti yamandla emanzi, isetshenziswa ephepheni lokumunca elingu-mumme (njengephepha lokuhlunga, iphepha lokusula uyinki, iphepha lasendlini yangasese, njll.), elingathuthukisa amandla ephepha elimanzi futhi linciphise ukulimala kokucutshungulwa kwephepha, ngenkathi lisheshisa ukucwengwa kwamanzi kwe-pulp nokwenza imicu emihle ihambe kalula.

2. I-ejenti yokulungisa umbala. Inamandla aqinile okubopha odayi be-asidi futhi ingasetshenziswa njenge-ejenti yokulungisa lapho amadayi e-asidi edaya iphepha.

3. Ukuguqulwa kwe-fiber kanye nezinsiza zokudaya. Ukwelashwa kwe-fiber, okufana nezikhali zomzimba, amagilavu ​​aphikisana nokusika, intambo, njll.

4. Izinto zikagesi. Emkhakheni we-elekthronikhi, ifilimu ye-polyethylene imide ingasetshenziswa njengesendlalelo esihlukanisayo, izinto ezivimbelayo kanye nesembozo sezingxenye ze-elekthronikhi, njll., ngokusebenza okuhle kokufakelwa kanye nokumelana nokushisa okuphezulu.

5. Ukupakishwa kokudla. Njengempahla yokupakisha ukudla, inezinzuzo zobufakazi bomswakama, ukumelana negesi okuhle, okungezona ubuthi, okunganambitheki, ukumelana nokushisa okuphezulu, njll., futhi isetshenziswa kabanzi ekufakweni kwenyama, izinkukhu, izithelo, imifino, ikhofi kanye eminye imikhiqizo.

6. Izinto zokwelapha. I-Polyvinylimine ingasetshenziswa kumishini yezokwelapha, amathuluzi okuxilonga, ukupakishwa kwezokwelapha, njll., njengezingubo zezokwelapha namafilimu abonisa obala ngezokwelapha.

7. Ingcina. Njenge-adhesive ephezulu yokusebenza, isetshenziselwa ukwakhiwa kwe-aerospace, izingxenye ze-electronic, izingxenye zezimoto nokunye.

8. Ama-agent okuhlanza amanzi kanye nama-dispersants. Isetshenziswa kabanzi ekwelapheni amanzi e-papermaking, isixazululo se-electroplating, i-dispersant neminye imikhakha. Umthwali wofuzo. I-Polyvinylimide iyivektha engeyona igciwane yokulethwa kwezakhi zofuzo, elungele ukudluliswa ngokubambisana kwama-plasmid amaningi.

Ngaphezu kwalokho,i-polyethyleniminefuthi inezici zokunamathela okuphezulu, i-adsorption ephezulu, i-cation ephezulu, ukusebenza kabusha okuphezulu, njll., futhi ibuye isetshenziswe kabanzi emkhakheni wepende, uyinki, i-adhesive, ukwelashwa kwe-fiber, ukuthuthwa kwendle nokunye.

Ngokuvamile, i-polyvinylimide iyi-polymer eguquguqukayo enezinhlobonhlobo zezinhlelo zokusebenza, futhi izakhiwo zayo zingashintshwa futhi zenziwe ngcono ngokushintsha isisindo samangqamuzana, ukwakheka nokusebenza.