nkhani

Polyethylenimine (PEI)ndi polima wosungunuka m'madzi. Kuchuluka kwa madzi m'zinthu zamalonda nthawi zambiri kumakhala 20% mpaka 50%. PEI imapangidwa ndi polima kuchokera ku ethylene imide monomer. Ndi polima ya cationic yomwe nthawi zambiri imawoneka ngati madzi opanda mtundu kapena achikasu kapena olimba okhala ndi kulemera kwa mamolekyulu osiyanasiyana komanso mitundu yosiyanasiyana ya kapangidwe kake.

Kodi ndi chiyanipolyethyleneiminentchito?

1. Gulu la amino lomwe limamatira kwambiri, lomwe limayamwa kwambiri, limatha kuchitapo kanthu ndi gulu la hydroxyl kuti lipange chomangira cha hydrogen, gulu la amine limatha kuchitapo kanthu ndi gulu la carboxyl kuti lipange chomangira cha ionic, gulu la amine limathanso kuchitapo kanthu ndi gulu la carbon acyl kuti lipange chomangira cha covalent. Nthawi yomweyo, chifukwa cha kapangidwe kake ka polar (amine) ndi gulu la hydrophobic (vinyl), limatha kuphatikizidwa ndi zinthu zosiyanasiyana. Ndi mphamvu zomangira izi, lingagwiritsidwe ntchito kwambiri m'magawo otsekera, inki, utoto, chomangira ndi zina zotero.

2. Polyvinyl imide yokhala ndi cationic yambiri imapezeka m'madzi, yomwe imatha kusokoneza ndikuyamwa zinthu zonse za anionic. Imachepetsanso ma ayoni achitsulo cholemera. Ndi mphamvu zake zapamwamba za cationic, ingagwiritsidwe ntchito popanga mapepala, kukonza madzi, kupaka ma plating solution, dispersant ndi zina.

3. Polyethylenimine yogwira ntchito kwambiri chifukwa cha ma amine oyambira ndi achiwiri omwe amagwira ntchito kwambiri, kotero imatha kuchitapo kanthu mosavuta ndi epoxy, ma acid, ma isocyanate compounds ndi mpweya wa asidi. Pogwiritsa ntchito izi, ingagwiritsidwe ntchito ngati epoxy reactant, aldehyde adsorbent komanso ngati chokonzera utoto.

Kodi polyethylenemine imagwiritsidwa ntchito chiyani?

Polyethylenemine (PEI)ndi polima yogwiritsidwa ntchito mosiyanasiyana yokhala ndi ntchito zosiyanasiyana, kuphatikizapo koma osati zokhazo:

1. Kukonza madzi ndi makampani opanga mapepala. Monga chothandizira kunyowa, chimagwiritsidwa ntchito popanga mapepala osanyowa (monga pepala losefera, pepala lofufuta inki, pepala la chimbudzi, ndi zina zotero), zomwe zingathandize kuti pepala likhale lonyowa komanso kuchepetsa kuwonongeka kwa mapepala, komanso kufulumizitsa kusefa madzi a zamkati ndikupanga ulusi wofewa kukhala wosavuta kusuntha.

2. Chopangira utoto. Chili ndi mphamvu yolimba yomangirira utoto wa asidi ndipo chingagwiritsidwe ntchito ngati chopangira utoto wa asidi popaka utoto wa pepala.

3. Kusintha ndi kupaka utoto wa ulusi. Zothandizira kukonza ulusi, monga chitetezo cha thupi, magolovesi oletsa kudula, chingwe, ndi zina zotero.

4. Zipangizo zamagetsi. Pankhani ya zamagetsi, filimu ya polyethylene imide ingagwiritsidwe ntchito ngati gawo lodzipatula, loteteza kutentha ndi gawo lophimba zigawo zamagetsi, ndi zina zotero, yokhala ndi mphamvu yabwino yoteteza kutentha komanso yolimba kwambiri.

5. Kupaka chakudya. Monga chida chopaka chakudya, chili ndi ubwino woti sichimanyowa, sichimatentha kwambiri, sichimawononga mpweya, sichimakoma, sichimatentha kwambiri, ndi zina zotero, ndipo chimagwiritsidwa ntchito kwambiri popaka nyama, nkhuku, zipatso, ndiwo zamasamba, khofi ndi zinthu zina.

6. Zipangizo zachipatala. Polyvinylimine ingagwiritsidwe ntchito mu zipangizo zachipatala, zida zoyezera matenda, ma CD azachipatala, ndi zina zotero, monga zokongoletsa zachipatala ndi mafilimu owonekera azachipatala.

7. Chomatira. Monga chomatira chogwira ntchito bwino, chimagwiritsidwa ntchito popanga ndege, zida zamagetsi, zida zamagalimoto ndi zina zotero.

8. Zotsukira madzi ndi zotsukira madzi. Zimagwiritsidwa ntchito kwambiri popanga mapepala potsukira madzi, njira yotsukira madzi ndi zina. Chonyamulira majini. Polyvinylimide ndi vector yopanda mavairasi yoperekera majini, makamaka yoyenera kufalitsa ma plasmid angapo pamodzi.

Kuphatikiza apo,polyethylenimineIlinso ndi makhalidwe monga kumatira kwambiri, kulowetsedwa kwambiri, cation yayikulu, reactivity yayikulu, ndi zina zotero, ndipo imagwiritsidwanso ntchito kwambiri m'magawo a utoto, inki, zomatira, chithandizo cha ulusi, chithandizo cha zinyalala ndi zina zotero.

Kawirikawiri, polyvinyllimide ndi polima yosinthasintha yokhala ndi ntchito zosiyanasiyana, ndipo makhalidwe ake amatha kusinthidwa ndikukonzedwa bwino mwa kusintha kulemera kwa mamolekyulu, kapangidwe kake, ndi magwiridwe antchito ake.