Polyanionic cellulose (PAC) ikemikari yakagadziridzwa kubva kune cellulose, inova inongoitika polima inowanikwa musero madziro emiti.Cellulose inoumbwa nekudzokorora mayuniti eglucose akabatanidzwa pamwechete ne beta-1,4-glycosidic bonds, achigadzira cheni refu.Icho chimwe chezvakanyanya kuwanda organic komisheni paPasi uye inoshanda sechikamu chechimiro muzvirimwa.Polyanionic cellulose inogadzirwa kubva ku cellulose kuburikidza nenhevedzano yemakemikari maitiro anounza mapoka eanionic kumusana we cellulose.Aya mapoka eanionic anopa PAC zvivakwa zvayo zvakasiyana uye inoita kuti ive yakakosha mumaindasitiri akasiyana siyana.
1.Chemical Structure uye Synthesis:
Polyanionic cellulose inogadzirwa ne etherification kana esterification ye cellulose.Munguva ye etherification, hydroxyl mapoka (-OH) pamaketani e cellulose anotsiviwa nemapoka ether, kazhinji carboxymethyl (-CH2COOH) kana carboxyethyl (-CH2CH2COOH) mapoka.Izvi zvinounza mhosva dzisina kunaka kumusana we cellulose, zvichiita kuti inyungudika nemvura uye iine mhosva isina kunaka zvachose.Iyo dhigirii yekutsiva (DS), iyo inoreva avhareji yenhamba yeakatsiviwa hydroxyl mapoka paglucose unit, inogona kudzorwa kugadzirisa zvimiro zvePAC kune chaiwo maapplication.
2.Properties:
Kunyungudika kweMvura: Chimwe chezvinhu zvakakosha zvePAC kunyungudika kwayo kwemvura, kunobva mukuunzwa kwemapoka eanionic.Kunyungudika uku kunoita kuti PAC ive nyore kubata uye kusanganisa mumasisitimu ane mvura.
Rheological Control: PAC inozivikanwa nekugona kwayo kugadzirisa rheological zvimiro zvemvura.Inogona kuita seyakakora mumiriri, inosimudzira viscosity uye inodzora kuyerera kwemvura.Ichi chivakwa chinonyanya kukosha mumaindasitiri akadai sekuchera oiri, uko PAC inoshandiswa mukuchera madhaka kuchengetedza wellbore kugadzikana uye kudzora kurasikirwa kwemvura.
Kudzora Kudzora: PAC inogona zvakare kushanda sefiltration control agent, ichibatsira kudzivirira kurasikirwa kwezvakaoma panguva yekusefa.Ichi chivakwa chinobatsira mumaindasitiri akadai semigodhi uye kurapwa kwemvura yetsvina.
pH Kugadzikana: PAC inoratidza kugadzikana pamusoro pehupamhi pH renji, iyo inobatsira mukusiyana kwayo mukushandisa kwakasiyana.
Kugarisana: PAC inoenderana nehuwandu hwemamwe makemikari uye ekuwedzera anowanzo shandiswa mumaindasitiri maitiro.
3.Applications:
Indasitiri yeOiri neGasi: PAC inoshandiswa zvakanyanya muindasitiri yemafuta negasi, kunyanya mumvura yekuchera (madhaka).Inoshanda seviscosifier, fluid kurasikirwa control agent, uye shale inhibitor, inobatsira kukwirisa mashandiro ekuchera uye kuchengetedza zvakanaka kutendeseka.
Kuvaka: Muindasitiri yekuvaka, PAC inoshandiswa mukusimbisa zvikumbiro zvekusimudzira rheological zvimiro zvesimende slurries.Inovandudza kupomba, inoderedza kurasikirwa kwemvura, uye inosimudzira simende bond simba.
Pharmaceuticals: PAC inowana maapplication mumishonga yekugadzira sechinhu chinosungirira mukugadzira piritsi uye sechinamato chinogadziridza mukuumbwa kwemvura.
Chikafu uye Chinwiwa: Muindasitiri yezvekudya nezvinwiwa, PAC inoshandiswa seyakagadzikana, yakakora, uye emulsifier muzvigadzirwa zvakasiyana siyana, zvinosanganisira sosi, madhirezi, uye zvigadzirwa zvemukaka.
Personal Care Zvigadzirwa: PAC inosanganisirwa muzvigadzirwa zvekuchengeta zvemunhu zvakaita seshamposi, maconditioners, uye lotions yekukora uye kudzikamisa zvivakwa.
Kurapa Kwemvura: PAC inoshandiswa mukugadzirisa mvura seyamuro uye coagulant rubatsiro rwekubvisa zvakamiswa zvakasimbiswa uye organic zvinhu kubva mumvura.
4.Kufunga nezvezvakatipoteredza:
Nepo PAC ichipa akawanda mabhenefiti mumaindasitiri ekushandisa, kugadzirwa kwayo uye mashandisiro anogona kusimudza kunetseka kwezvakatipoteredza.Iko kugadziridzwa kwekemikari ye cellulose kugadzira PAC kunowanzo sanganisira kushandiswa kwemareagents uye maitiro anowedzera simba.Pamusoro pezvo, kuraswa kwezvigadzirwa zvine PAC kunogona kubatsira mukusvibisa kwezvakatipoteredza kana maitiro ekutonga tsvina akasateverwa.Naizvozvo, kuedza kuri kuenderera mberi kwekugadzira nzira dzakasimba dzekubatanidza kwePAC uye kusimudzira kudzokorodza kana kuomeswa kwezvinhu zvePAC-based zvigadzirwa.
Iko kudiwa kwe polyanionic cellulose inotarisirwa kuramba ichikura mumaindasitiri akasiyana siyana nekuda kwekuita zvinhu zvakasiyana-siyana uye kuwanda kwekushandisa.Kuedza kutsvagisa kwakanangana nekuwedzera kusimudzira mashandiro uye kusimba kwePAC, kuongorora nzira dzinoverengeka dzekubatanidza, uye kugadzira eco-hushamwari dzimwe nzira.Pamusoro pezvo, kune kufarira kuri kuwedzera mukushandiswa kwePAC mundima dziri kusimukira dzakadai sebiomedicine uye simba rinogoneka.Pakazere, polyanionic cellulose inoramba iri yakakosha uye yakakosha polymer mune zvemazuva ano maindasitiri maitiro, ine kuenderera mberi kwakanangana nekuwedzera kushandiswa kwayo uku ichideredza tsoka yayo yezvakatipoteredza.
polyanionic cellulose (PAC) ikemikari yakagadziridzwa kubva kune cellulose ine yakasarudzika zvimiro inoita kuti ive yakakosha mumhando dzakasiyana dzekushandisa mumaindasitiri.Kubva pakuvandudza zvimiro zvemvura mukuchera oiri kusvika pakuvandudza mashandiro emishonga yekugadzira mishonga, PAC inoita basa rakakosha muzvikamu zvakawanda.Nekudaro, sekunge chero chigadzirwa chemakemikari, zvakakosha kuti titarise mhedzisiro yezvakatipoteredza yePAC kugadzirwa uye mashandisiro uye kushanda kune inoenderera mhinduro.Kunyangwe zvipingamupinyi, kuenderera mberi kutsvagisa uye hunyanzvi kunoramba kuchiwedzera kugona uye mashandisiro e polyanionic cellulose, kuve nechokwadi kukosha kwayo mumaindasitiri akasiyana kwemakore anotevera.
Nguva yekutumira: Mar-28-2024