1. Igama lemveliso:
01. Igama leKhemikhali: i-hydroxypropyl methylcellulose
02. Igama elipheleleyo ngesiNgesi: Hydroxypropyl Methyl Cellulose
03. Isishunqulelo sesiNgesi: HPMC
2. Iimpawu zomzimba kunye neekhemikhali:
01. Ukubonakala: umgubo omhlophe okanye omhlophe.
02. Ubungakanani besuntswana; ireyithi yokupasa ye-100 mesh inkulu kuno-98.5%; ireyithi yokupasa ye-80 mesh inkulu kune-100%.
03. Ubushushu beCarbonization: 280～300℃
04. Ubuninzi obubonakalayo: 0.25～0.70 / cm3 (ngokuqhelekileyo malunga ne-0.5g / cm3), ubunzima obuthile 1.26-1.31.
05. Ubushushu bokutshintsha umbala: 190～200℃
06. Uxinzelelo lomphezulu: isisombululo se-2% samanzi ngu-42～56dyn / cm.
07. Inyibilika emanzini kunye nezinye izinyibilikisi, ezifana ne-ethanol/amanzi, ipropanol/amanzi, i-trichloroethane, njl. ngokomlinganiselo ofanelekileyo.
Izisombululo ezinamanzi zisebenza kumphezulu. Ukucaca okuphezulu, ukusebenza okuzinzileyo, ubushushu be-gel yeemveliso ezineenkcazo ezahlukeneyo
Ukwahluka, utshintsho lwe-solubility kunye ne-viscosity, i-viscosity ephantsi, i-solubility enkulu, ukusebenza kweenkcazo ezahlukeneyo ze-hydroxypropyl methylcellulose (HPMC) inomahluko othile, ukuchithwa kwe-hydroxypropyl methylcellulose (HPMC) emanzini akuchaphazeli umphumo wexabiso le-PH. .
08. Ngokuncipha komxholo we-methoxyl, i-gel point iyanda, i-solubility yamanzi iyancipha, kwaye umsebenzi we-surface we-hydroxypropyl methylcellulose (HPMC) nawo uyancipha.
09. I-Hydroxypropyl methylcellulose (HPMC) nayo inamandla okuqina, ukuxhathisa ityuwa, i-powder ash ephantsi, ukuzinza kwe-PH, ukugcinwa kwamanzi, ukuzinza kwe-dimensional, ipropati egqwesileyo yokwenza ifilimu, kunye noluhlu olubanzi lokuchasana kwe-enzyme, iimpawu zokusabalalisa ezifana nesondo kunye nokunamathela.
Ezintathu, iimpawu ze-hydroxypropyl methylcellulose (HPMC):
Imveliso idibanisa iipropathi ezininzi zomzimba kunye neekhemikhali ukuze zibe yimveliso ekhethekileyo enokusetyenziswa ngeendlela ezininzi, kwaye iipropathi ezahlukeneyo zimi ngolu hlobo lulandelayo:
(1) Ukugcinwa kwamanzi: Iyakwazi ukubamba amanzi kwindawo enemingxuma efana neebhodi zesamente zodonga kunye nezitena.
(2) Ukwenziwa kwefilimu: Inokwenza ifilimu ecacileyo, eqinile kunye nethambileyo enokumelana neoli.
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(4) I-Thermal Gelation: Xa isisombululo samanzi semveliso sishushu, siya kwenza i-gel, kwaye i-gel eyenziwe iya kuba sisisombululo kwakhona emva kokupholisa.
(5) Umsebenzi womphezulu: Ukubonelela ngomsebenzi ongaphezulu kwisisombululo sokufezekisa i-emulsification efunekayo kunye ne-colloid yokukhusela, kunye nokuzinza kwesigaba.
(6) Ukumiswa: Inokuthintela imvula yeengqungquthela eziqinileyo, ngaloo ndlela inqanda ukubunjwa kwe-sediment.
(7) I-colloid ekhuselayo: inokuthintela amaconsi kunye namaqhekeza ukuba adibanise okanye adibanise.
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(9) Ukunyibilika kwamanzi: Imveliso inokunyibilika emanzini ngamanani ahlukeneyo, kwaye ukuxinwa kwayo okuphezulu kunqunyelwe kuphela yi-viscosity.
(10) I-inertness engeyiyo i-ionic: Imveliso i-ether ye-cellulose e-non-ionic, engadibanisi neetyuwa zetsimbi okanye ezinye ii-ion ukuze zenze i-insoluble precipitates.
(11) Ukuzinza kwe-Acid-base: ilungele ukusetyenziswa ngaphakathi koluhlu lwe-PH3.0-11.0.
(12) Ayinancasa kwaye ayinavumba, ayichatshazelwa yimetabolism; zisetyenziswe njengezongezo zokutya kunye neziyobisi, aziyi kuchithwa ekutyeni kwaye aziyi kubonelela ngeekhalori.
4. I-Hydroxypropyl methylcellulose (HPMC) indlela yokuchithwa:
Xa iimveliso ze-hydroxypropyl methylcellulose (HPMC) zongezwa ngokuthe ngqo emanzini, ziya kubumbana kwaye zinyibilike, kodwa oku kupheliswa kucotha kakhulu kwaye kunzima. Kukho iindlela ezintathu ezicetyisiweyo zokuphelisa ngezantsi, kwaye abasebenzisi banokukhetha eyona ndlela ifanelekileyo ngokusetyenziswa kwabo:
1. Indlela yamanzi ashushu: Ekubeni i-hydroxypropyl methylcellulose (HPMC) ayinyibiliki emanzini ashushu, isigaba sokuqala se-hydroxypropyl methylcellulose (HPMC) sinokusasazwa ngokulinganayo kumanzi ashushu, kwaye emva kokuba ipholile, ezintathu zendlela eqhelekileyo ichazwa njenge. ilandelayo:
1). Beka umlinganiselo ofunekayo wamanzi ashushu kwisikhongozeli kwaye ufudumale ukuya kuma-70°C. Ngokuthe ngcembe yongeza i-hydroxypropyl methylcellulose (HPMC) phantsi kokuvuselela okucothayo, i-hydroxypropyl methylcellulose (HPMC) iqalisa ukudada phezu kwamanzi, kwaye ngokuthe ngcembe yenze i-slurry, ipholise i-slurry phantsi kokuvuselela.
2). Fudumeza i 1/3 okanye 2/3 (umlinganiselo ofunekayo) wamanzi kwisikhongozeli kwaye uyifudumeze ukuya kuma 70°C. Ngokwendlela ye-1), ukusasaza i-hydroxypropyl methylcellulose (HPMC) ukulungiselela udaka lwamanzi ashushu Emva koko yongeza inani eliseleyo lamanzi abandayo okanye amanzi omkhenkce kwisikhongozeli, emva koko wongeze i-hydroxypropyl methylcellulose (HPMC) i-slurry yamanzi ashushu ekhankanywe ngasentla. amanzi abandayo, kwaye uxube, kwaye emva koko upholise umxube.
3). Yongeza i-1/3 okanye i-2/3 yomlinganiselo ofunekayo wamanzi kwisikhongozeli kwaye uyifudumeze ukuya kuma-70°C. Ngokwendlela ye-1), ukusabalalisa i-hydroxypropyl methylcellulose (HPMC) ukulungiselela i-slurry yamanzi ashushu; Umlinganiselo oseleyo wamanzi abandayo okanye e-ice wongezwa kwi-slurry yamanzi ashushu kwaye umxube upholile emva kokuvuselela.
2. Indlela yokuxuba i-powder: i-hydroxypropyl methylcellulose (HPMC) i-powder particles kunye nenani elilinganayo okanye elikhulu lezinye izithako ze-powdery zichithwa ngokupheleleyo ngokuxuba okomileyo, kwaye emva koko zichithwa emanzini, ngoko i-hydroxypropyl methylcellulose Base cellulose (HPMC) inokuchithwa ngaphandle kwe-agglomeration. . 3. Indlela yokumanzisa i-solvent ye-Organic: i-pre-disperse okanye imanzi i-hydroxypropyl methylcellulose (HPMC) kunye ne-solvents ye-organic efana ne-ethanol, i-ethylene glycol okanye i-oyile, uze uyichithe emanzini. Ngeli xesha, i-hydroxypropyl methylcellulose (HPMC) inokunyibilika kakuhle.
5. Ukusetyenziswa okuphambili kwe-hydroxypropyl methylcellulose (HPMC):
I-Hydroxypropyl methylcellulose (HPMC) ingasetyenziswa njenge-thickener, dispersant, emulsifier kunye ne-agent-forming agent. Iimveliso zayo zodidi lwemizi-mveliso zingasetyenziswa kwimichiza yemihla ngemihla, i-elektroniki, iireyini zokwenziwa, ukwakhiwa kunye neengubo.
1. Ukumiswa kwepolymerization:
Ekuveliseni i-resin zokwenziwa ezifana ne-polyvinyl chloride (PVC), i-polyvinylidene chloride kunye nezinye i-copolymers, i-polymerization yokumiswa isetyenziswa ngokuqhelekileyo kwaye iyimfuneko ukuzinzisa ukumiswa kwe-hydrophobic monomers emanzini. Njenge-polymer e-soluble yamanzi, iimveliso ze-hydroxypropyl methylcellulose (HPMC) zinomsebenzi ogqwesileyo womhlaba kwaye zisebenza njenge-agent ekhuselayo ye-colloidal, enokuthintela ngokufanelekileyo ukuhlanganiswa kweepolymer particles. Ngaphaya koko, nangona i-hydroxypropylmethylcellulose (HPMC) iyipolymer enyibilikayo emanzini, ikwanokunyibilika kancinane kwiimonomers ze-hydrophobic kwaye yonyusa i-porosity ye-monomers apho amasuntswana e-polymeric aveliswa khona, ukuze ikwazi Ukubonelela ngeepolymers ngesakhono esihle sokususa ii-monomers ezishiyekileyo. kunye nokwandisa ukufunxwa kweeplasticizers.
2. Ekuqulunqweni kwezinto zokwakha, i-hydroxypropyl methylcellulose (HPMC) ingasetyenziselwa:
1). I-adhesive kunye ne-caulking agent ye-gypsum-based adhesive tape;
2). Ukudityaniswa kwezitena ezisekelwe kwisamente, iithayile kunye neziseko;
3). istucco esekwe kwiplasterboard;
4). Udaka olusekelwe kwisamente;
5). Kwifomula yepeyinti kunye nepeyinti yokususa.
Ixesha lokuposa: May-24-2023