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 and caulking agent ye-gypsum-based adhesive tape;
2).Ukuhlanganiswa kwezitini ezisekelwe kusimende, amathayili nezisekelo;
3).I-stucco esekwe nge-plasterboard;
4).I-plaster yesakhiwo esekwe ngosimende;
5).Kufomula yopende kanye nesikhiphi sepende.
Isikhathi sokuthumela: May-24-2023