1. Igama lomkhiqizo:
01. Igama lamakhemikhali: i-hydroxypropyl methylcellulose
02. Igama eligcwele ngesiNgisi: Hydroxypropyl Methyl Cellulose
03. Isifinyezo sesiNgisi: HPMC
2. Izakhiwo zomzimba nezamakhemikhali:
01. Ukubukeka: impuphu emhlophe noma engemhlophe nhlobo.
02. Usayizi wezinhlayiya; izinga lokudlula le-mesh eyi-100 likhulu kuno-98.5%; izinga lokudlula le-mesh engama-80 likhulu kuno-100%.
03. Izinga lokushisa le-carbonization: 280～300℃
04. Ubuningi obubonakalayo: 0.25～0.70/cm3 (ngokuvamile cishe u-0.5g/cm3), amandla adonsela phansi athile 1.26-1.31.
05. Izinga lokushisa lokushintsha umbala: 190～200℃
06. Ukucindezeleka kobuso: Isixazululo samanzi esingu-2% singu-42 ～56dyn/cm.
07. Incibilika emanzini nakwezinye izinyibilikisi, njenge-ethanol/amanzi, i-propanol/amanzi, i-trichloroethane, njll. ngezilinganiso ezifanele.
Izixazululo zamanzi zisebenza ngaphezulu. Ukucaca okuphezulu, ukusebenza okuzinzile, izinga lokushisa lejeli lemikhiqizo enezincazelo ezahlukene
Uma kuhlukile, ukuncibilika kuyashintsha nge-viscosity, lapho i-viscosity iphansi, lapho ukuncibilika kukhulu, ukusebenza kwezincazelo ezahlukene ze-hydroxypropyl methylcellulose (HPMC) kunomehluko othile, ukuncibilika kwe-hydroxypropyl methylcellulose (HPMC) emanzini akuthinteki umphumela we-PH.
08. Ngokuncipha kokuqukethwe kwe-methoxyl, iphuzu lejeli liyakhula, ukuncibilika kwamanzi kuyancipha, kanti nomsebenzi wobuso be-hydroxypropyl methylcellulose (HPMC) nawo uyancipha.
09. I-Hydroxypropyl methylcellulose (HPMC) nayo inekhono lokujiya, ukumelana nosawoti, impuphu yomlotha ephansi, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kobukhulu, isici esihle kakhulu sokwenza ifilimu, kanye nobubanzi bokumelana nama-enzyme, izici zokuhlakazeka njengobulili kanye nokunamathela.
Izimpawu ezintathu ze-hydroxypropyl methylcellulose (HPMC):
Umkhiqizo uhlanganisa izakhiwo eziningi zomzimba nezamakhemikhali ukuze ube umkhiqizo oyingqayizivele onezisetshenziswa eziningi, futhi izakhiwo ezahlukahlukene yilezi ezilandelayo:
(1) Ukugcinwa kwamanzi: Kungabamba amanzi ezindaweni ezinezimbobo ezifana namabhodi esimende odongeni kanye nezitini.
(2) Ukwakheka kwefilimu: Ingakha ifilimu esobala, eqinile futhi ethambile enokumelana okuhle kakhulu namafutha.
(3) Ukuncibilika kwezinto eziphilayo: Umkhiqizo uyancibilika kwezinye izinto eziphilayo, njenge-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, kanye nohlelo lwe-solvent olwakhiwe yizinto ezimbili eziphilayo.
(4) Ukufakwa kwe-thermal gelation: Uma isixazululo samanzi somkhiqizo sishiswa, sizokwakha ijeli, bese ijeli elakhiwe lizoba yisisombululo futhi ngemva kokupholisa.
(5) Umsebenzi womphezulu: Nikeza umsebenzi womphezulu esixazululweni ukuze kufezwe i-emulsification edingekayo kanye ne-colloid evikelayo, kanye nokuzinzisa isigaba.
(6) Ukumiswa: Kungavimbela ukuna kwezinhlayiya eziqinile, ngaleyo ndlela kuvimbele ukwakheka kwenhlabathi.
(7) I-colloid evikelayo: ingavimbela amaconsi nezinhlayiya ukuthi zingahlangani noma zijiye.
(8) Ukunamathela: Isetshenziswa njenge-glue yemibala, imikhiqizo kagwayi, kanye nemikhiqizo yephepha, isebenza kahle kakhulu.
(9) Ukuncibilika kwamanzi: Umkhiqizo ungancibilika emanzini ngobuningi obuhlukene, futhi ukuhlushwa kwawo okuphezulu kunqunyelwe kuphela yi-viscosity.
(10) Ukungangeni kwe-ionic: Lo mkhiqizo uyi-non-ionic cellulose ether, engahlangani nosawoti wensimbi noma amanye ama-ion ukuze kwakheke ama-precipitate angancibiliki.
(11) Ukuqina kwesisekelo se-asidi: kufanelekile ukusetshenziswa ngaphakathi kwebanga le-PH3.0-11.0.
(12) Azinambitheki futhi azinaphunga, azithintwa yi-metabolism; zisetshenziswa njengezithasiselo zokudla nezidakamizwa, ngeke zigaywe ekudleni futhi ngeke zinikeze amakhalori.
4. Indlela yokuncibilikisa i-Hydroxypropyl methylcellulose (HPMC):
Uma imikhiqizo ye-hydroxypropyl methylcellulose (HPMC) ingezwa ngqo emanzini, izojiya bese incibilika, kodwa lokhu kuncibilika kuhamba kancane futhi kunzima. Kunezindlela ezintathu zokuncibilika eziphakanyisiwe ngezansi, futhi abasebenzisi bangakhetha indlela elula kakhulu ngokuya ngokusetshenziswa kwabo:
1. Indlela yamanzi ashisayo: Njengoba i-hydroxypropyl methylcellulose (HPMC) ingancibiliki emanzini ashisayo, isigaba sokuqala se-hydroxypropyl methylcellulose (HPMC) singasakazwa ngokulinganayo emanzini ashisayo, bese kuthi lapho sesipholile, kube khona ezintathu Indlela ejwayelekile ichazwa kanje:
1). Faka inani elidingekayo lamanzi ashisayo esitsheni bese ulishisa cishe ku-70°C. Faka kancane kancane i-hydroxypropyl methylcellulose (HPMC) uma uvuselela kancane, i-hydroxypropyl methylcellulose (HPMC) iqala ukuntanta phezu kwamanzi, bese kancane kancane yakha i-slurry, upholise i-slurry uma uvuselela.
2). Shisa i-1/3 noma i-2/3 (inani elidingekayo) lamanzi esitsheni bese ulifudumeza ku-70°C. Ngokwendlela yoku-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukuze ulungiselele i-slurry yamanzi ashisayo. Bese wengeza inani elisele lamanzi abandayo noma amanzi eqhwa esitsheni, bese wengeza i-slurry yamanzi ashisayo e-hydroxypropyl methylcellulose (HPMC) eshiwo ngenhla emanzini abandayo, bese uvuselela, bese upholisa ingxube.
3). Faka i-1/3 noma i-2/3 yenani lamanzi elidingekayo esitsheni bese ulishisa ku-70°C. Ngokwendlela yoku-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukuze ulungiselele i-slurry yamanzi ashisayo; Inani elisele lamanzi abandayo noma eqhwa libe selifakwa ku-slurry yamanzi ashisayo bese ingxube ipholiswa ngemva kokuyixuba.
2. Indlela yokuxuba i-powder: izinhlayiya ze-powder ze-hydroxypropyl methylcellulose (HPMC) kanye nenani elilinganayo noma elikhulu lezinye izithako eziyimpuphu zihlakazwa ngokuphelele ngokuxuba okomile, bese zincibilikiswa emanzini, bese i-hydroxypropyl methylcellulose Base cellulose (HPMC) ingancibilikiswa ngaphandle kokuhlanganiswa. 3. Indlela yokumanzisa i-organic solvent: i-pre-disperse noma i-wet hydroxypropyl methylcellulose (HPMC) enezincibilikisi eziphilayo ezifana ne-ethanol, i-ethylene glycol noma uwoyela, bese iyincibilikisa emanzini. Ngalesi sikhathi, i-hydroxypropyl methylcellulose (HPMC) nayo ingancibilikiswa kahle.
5. Ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose (HPMC):
I-Hydroxypropyl methylcellulose (HPMC) ingasetshenziswa njengesithambisi, isihlakazi, i-emulsifier kanye ne-ejenti yokwakha ifilimu. Imikhiqizo yayo yezinga lezimboni ingasetshenziswa kumakhemikhali ansuku zonke, kuma-elekthronikhi, kuma-resin okwenziwa, ekwakheni kanye nasezimbozweni.
1. Ukumiswa kwe-polymerization:
Ekukhiqizweni kwama-resin okwenziwa njenge-polyvinyl chloride (PVC), i-polyvinylidene chloride namanye ama-copolymer, i-suspension polymerization isetshenziswa kakhulu futhi iyadingeka ukuze kuzinziswe ukumiswa kwama-monomer angenawo amanzi emanzini. Njenge-polymer encibilika emanzini, imikhiqizo ye-hydroxypropyl methylcellulose (HPMC) inomsebenzi omuhle kakhulu wobuso futhi isebenza njenge-ejenti yokuvikela i-colloidal, engavimbela ngempumelelo ukuhlanganiswa kwezinhlayiya ze-polymer. Ngaphezu kwalokho, yize i-hydroxypropylmethylcellulose (HPMC) iyi-polymer encibilika emanzini, iphinde incibilike kancane kuma-monomer angenawo amanzi futhi ikhulisa ukuqina kwama-monomer lapho kukhiqizwa khona izinhlayiya ze-polymeric, ukuze ikwazi Inikeza ama-polymer ikhono elihle kakhulu lokususa ama-monomer asele futhi ithuthukise ukumuncwa kwama-plasticizer.
2. Ekwakhiweni kwezinto zokwakha, i-hydroxypropyl methylcellulose (HPMC) ingasetshenziswa ku:
1). I-Adhesive kanye ne-caulking agent ye-adhesive tape esekelwe ku-gypsum;
2). Ukuhlanganiswa kwezitini, amathayili kanye nezisekelo ezisekelwe kusimende;
3). I-stucco esekelwe kwi-plasterboard;
4). Iplasta yesakhiwo esekelwe kusimende;
5). Efomini yokususa upende nopende.
Isikhathi sokuthunyelwe: Meyi-24-2023