1. Igama lomkhiqizo:
01. Igama lekhemikhali: i-hydroxypropyl methylcellulose
02. Igama eligcwele ngesiNgisi: Hydroxypropyl Methyl Cellulose
03. Isifinyezo sesiNgisi: HPMC
2. Izakhiwo zomzimba namakhemikhali:
01. Ukubukeka: impushana emhlophe noma emhlophe.
02. Usayizi wezinhlayiya; izinga lokuphasa lika-100 mesh likhulu kuno-98.5%; izinga lokuphasa lika-80 mesh likhulu kuno-100%.
03. Izinga lokushisa le-Carbonization: 280℃300℃
04. Ukuminyana okubonakalayo: 0.25～0.70/cm3 (imvamisa cishe ku-0.5g/cm3), amandla adonsela phansi athile 1.26-1.31.
05. Izinga lokushisa lokushintsha umbala: 190～200℃
06. Ukushuba kobuso: Isixazululo esinamanzi esingu-2% ngu-42～56dyn/cm.
07. Incibilika emanzini nakwezinye izincibilikisi, njenge-ethanol/amanzi, i-propanol/amanzi, i-trichloroethane, njll. ngezilinganiso ezifanele.
Izixazululo ezinamanzi zisebenza phezulu. Ukucaca okuphezulu, ukusebenza okuzinzile, izinga lokushisa lejeli lemikhiqizo enezincazelo ezahlukene
Okuhlukile, ukuncibilika kuyashintsha nge-viscosity, i-viscosity ephansi, ukuncibilika okukhulu, ukusebenza kwezicaciso ezahlukene ze-hydroxypropyl methylcellulose (HPMC) kunomehluko othile, ukuchithwa kwe-hydroxypropyl methylcellulose (HPMC) emanzini akuthintwa umphumela wevelu ye-PH. .
08. Ngokuncipha kokuqukethwe kwe-methoxyl, iphuzu lejeli liyakhula, ukuncibilika kwamanzi kuncipha, nomsebenzi ongaphezulu we-hydroxypropyl methylcellulose (HPMC) nawo uyancipha.
09. I-Hydroxypropyl methylcellulose (HPMC) nayo inekhono lokujiya, ukumelana nosawoti, impushana yomlotha ephansi, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, indawo enhle kakhulu yokwenza ifilimu, kanye nohlu olubanzi lokumelana nama-enzyme, izici zokuhlakazeka ezifana nobulili nokunamathela.
Ezintathu, izici ze-hydroxypropyl methylcellulose (HPMC):
Umkhiqizo uhlanganisa izakhiwo eziningi ezibonakalayo namakhemikhali ukuze ube umkhiqizo oyingqayizivele onokusetshenziswa okuningi, futhi izici ezihlukahlukene zimi kanje:
(1) Ukugcinwa kwamanzi: Ingabamba amanzi ezindaweni ezinezimbotshana njengamabhodi osimende odongeni nezitini.
(2) Ukwakhiwa kwefilimu: Ingenza ifilimu esobala, eqinile futhi ethambile enokumelana okuhle kakhulu nowoyela.
(3) Ukunyibilika kwe-Organic: Umkhiqizo uncibilika kwezinye izinyibilikisi zemvelo, njenge-ethanol/amanzi, i-propanol/amanzi, i-dichloroethane, kanye nesistimu yezincibilikisi ezakhiwe ngezincibilikizi ezimbili eziphilayo.
(4) I-Thermal Gelation: Lapho isixazululo esinamanzi somkhiqizo sishiswa, sizokwakha ijeli, futhi ijeli elakhiwe liyoba isisombululo futhi ngemva kokupholisa.
(5) Umsebenzi ongaphezulu: Nikeza umsebenzi ongaphezulu kusixazululo sokufeza i-emulsification edingekayo kanye ne-colloid evikelayo, kanye nokuqiniswa kwesigaba.
(6) Ukumiswa: Kungavimbela ukuna kwezinhlayiya eziqinile, ngaleyo ndlela kuvimbele ukwakheka kwenhlabathi.
(7) I-colloid evikelayo: ingavimbela amaconsi nezinhlayiya ukuthi zihlangane noma zihlangane.
(8) Ukunamathela: Isetshenziswa njengento enamathelayo yokwenza umbala, imikhiqizo kagwayi, nemikhiqizo yephepha, isebenza kahle kakhulu.
(9) Ukunyibilika kwamanzi: Umkhiqizo ungancibilika emanzini ngamanani ahlukene, futhi ukugxila kwawo okuphezulu kukhawulelwe kuphela yi-viscosity.
(10) Ukungangeni kwe-ionic okungeyona i-ionic: Umkhiqizo i-ether ye-cellulose engeyona i-ionic, engahlangani nosawoti wensimbi noma amanye ama-ion ukuze kwakhe izimvula ezingancibiliki.
(11) Ukuzinza kwesisekelo se-Acid: kulungele ukusetshenziswa ngaphakathi kwebanga elingu-PH3.0-11.0.
(12) Ayinambitheki futhi ayinaphunga, ayithinteki ekusetshenzisweni kwe-metabolism; esetshenziswa njengezithasiselo zokudla nezidakamizwa, ngeke zigaywe nge-metabolized ekudleni futhi ngeke zinikeze ama-calories.
4. Indlela yokuhlakaza i-Hydroxypropyl methylcellulose (HPMC):
Uma imikhiqizo ye-hydroxypropyl methylcellulose (HPMC) yengezwa ngokuqondile emanzini, izobumbana bese incibilika, kodwa lokhu kuncibilika kuhamba kancane kakhulu futhi kunzima. Kunezindlela ezintathu zokuhlakaza 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) singahlakazwa ngokulinganayo emanzini ashisayo, bese kuthi lapho sesipholisiwe, izindlela ezintathu ezijwayelekile zichazwe ngokuthi kuyalandela:
1). Faka inani elidingekayo lamanzi ashisayo esitsheni bese ushisa kuze kufike ku-70°C. Kancane kancane yengeza i-hydroxypropyl methylcellulose (HPMC) ngaphansi kokunyakaziswa kancane, i-hydroxypropyl methylcellulose (HPMC) iqala ukuntanta phezu kwamanzi, bese kancane kancane yakhe i-slurry, ipholise i-slurry ngaphansi kokunyakaziswa.
2). Shisisa i-1/3 noma 2/3 (inani elidingekayo) lamanzi esitsheni bese usishisa ku-70°C. Ngokwendlela yoku-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukuze ulungise udaka lwamanzi ashisayo Bese wengeza inani elisele lamanzi abandayo noma amanzi eqhwa esitsheni, bese wengeza i-hydroxypropyl methylcellulose (HPMC) yamanzi ashisayo eshiwo ngenhla eshiwo ngenhla. amanzi abandayo, ugoqoze, bese upholisa ingxube.
3). Faka i-1/3 noma 2/3 yenani elidingekayo lamanzi esitsheni bese usishisa ku-70°C. Ngokwendlela ye-1), hlakaza i-hydroxypropyl methylcellulose (HPMC) ukuze ulungiselele udaka lwamanzi ashisayo; Inani elisele lamanzi abandayo noma e-ice libe selifakwa emanzini ashisayo e-slurry futhi ingxube iyapholiswa ngemva kokugubha.
2. Indlela yokuxuba impushana: izinhlayiya ze-hydroxypropyl methylcellulose (HPMC) kanye nenani elilinganayo noma elikhulu lezinye izithako eziyimpuphu zihlakazwa ngokugcwele ngokuxuba okomile, bese zihlakazwa emanzini, bese i-hydroxypropyl methylcellulose Base cellulose (HPMC) ingancibilika ngaphandle kokuhlanganiswa. . 3. Indlela yokumanzisa i-organic solvent: i-pre-disperse noma i-hydroxypropyl methylcellulose emanzi (HPMC) enezinyibilikisi zemvelo ezifana ne-ethanol, i-ethylene glycol noma uwoyela, bese uyincibilikisa emanzini. Ngalesi sikhathi, i-hydroxypropyl methylcellulose (HPMC) ingancibilika kahle.
5. Ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose (HPMC):
IHydroxypropyl methylcellulose (HPMC) ingasetshenziswa njenge-thickener, dispersant, emulsifier kanye ne-ejenti yokwakha ifilimu. Imikhiqizo yayo yezinga lezimboni ingasetshenziswa kumakhemikhali ansuku zonke, i-electronics, ama-synthetic resin, ukwakhiwa kanye nezingubo.
1. Ukumiswa kwe-polymerization:
Ekukhiqizeni ama-resin okwenziwa njenge-polyvinyl chloride (PVC), i-polyvinylidene chloride namanye ama-copolymers, i-polymerization yokumiswa isetshenziswa kakhulu futhi iyadingeka ukuze kuzinziswe ukumiswa kwama-hydrophobic monomers emanzini. Njenge-polymer encibilikayo emanzini, imikhiqizo ye-hydroxypropyl methylcellulose (HPMC) inomsebenzi omuhle kakhulu wangaphezulu futhi isebenza njenge-ejenti yokuvikela ye-colloidal, engavimbela ngokuphumelelayo ukuhlanganiswa kwezinhlayiya ze-polymer. Ngaphezu kwalokho, nakuba i-hydroxypropylmethylcellulose (HPMC) iyi-polymer encibilika emanzini, iphinde inyibilike kancane kuma-monomers e-hydrophobic futhi ikhulise i-porosity yama-monomers okukhiqizwa kuwo izinhlayiya ze-polymeric, ukuze Inikeze ama-polymers anekhono elihle kakhulu lokususa ama-monomer asele. futhi uthuthukise ukumuncwa kwama-plasticizers.
2. Ekwenziweni kwezinto zokwakha, i-hydroxypropyl methylcellulose (HPMC) ingasetshenziselwa:
1). I-adhesive ne-caulking agent ye-gypsum-based adhesive tape;
2). Ukuhlanganiswa kwezitini ezisekelwe kusimende, amathayili nezisekelo;
3). I-stucco esekelwe ku-plasterboard;
4). I-plaster yesakhiwo esekwe kusimende;
5). Kufomula yopende kanye nesikhiphi sepende.
Isikhathi sokuthumela: May-24-2023