IHydroxypropyl Methylcellulose | HPMC |9004-65-3
Inkcazo yeMveliso:
| Iintlobo | 60JS | 65JS | 75JS |
| Umxholo we-Methoxy(%) | 28-30 | 27-30 | 19-24 |
| Umxholo weHydroxypropyl(%) | 7-12 | 4-7.5 | 4-12 |
| Ubushushu begel(℃) | 58-64 | 62-68 | 70-90 |
| Amanzi(%) | ≤5 | ||
| Uthuthu(Wt%) | ≤5 | ||
| PH ixabiso | 4-8 | ||
| Viscosity(2%, 20℃, mpa.s) | I-5-200000, inokuchazwa ngokweemfuno zabathengi | ||
| Udidi | Inkcazo | Ububanzi |
| I-viscosity ephantsi kakhulu (mpa.s) | 5 | 3-7 |
| 10 | 8-12 | |
| 15 | 13-18 | |
| I-viscosity ephantsi (mpa.s) | 25 | 20-30 |
| 50 | 40-60 | |
| 100 | 80-120 | |
| I-viscosity ephezulu (mpa.s) | 4000 | 3500-5600 |
| 12000 | 10000-14000 | |
| I-viscosity ephezulu kakhulu (mpa.s) | 20000 | 18000-22000 |
| 40000 | 35000-55000 | |
| 75000 | 70000-85000 | |
| 100000 | 90000-120000 | |
| 150000 | 130000-180000 | |
| 200000 | 180000-230000 | |
| 250000 | ＞230000 |
Ingcaciso yeMveliso:
IHydroxypropyl Methylcellulose (HPMC) yimpuphu emhlophe engenavumba, engeyotyhefu. Emva kokuchithwa ngokupheleleyo emanzini, kuya kwenza isisombululo se-viscous esicacileyo. I-ether ye-cellulose engeyiyo i-ionic eyenziwe kwizinto ze-polymer zendalo ngokusebenzisa uchungechunge lwe-chemical processing. Ineempawu zokuqina, ukunamathela, ukusabalalisa, ukunyuswa, ukubunjwa kwefilimu, ukumiswa, i-adsorption, i-gelation, umsebenzi ophezulu, ukugcinwa komswakama kunye nokukhuselwa kwe-colloids.
Isicelo:
Ukunyibilika kwamanzi kunye nekhono lokuqina: inokunyibilika emanzini abandayo, kwaye yenze isisombululo se-viscous esicacileyo.
Ukuchithwa kwi-solvents ye-organic: Ngenxa yokuba iqulethe inani elithile lamaqela e-hydrophobic methoxy, le mveliso inokunyibilika kwezinye izinyibilikisi eziphilayo.
Uzinzo lwexabiso le-PH: I-viscosity yesisombululo se-aqueous ye-HPMC izinzile kuluhlu lwexabiso le-PH 3.0-11.0.
Umsebenzi womphezulu: Isisombululo samanzi se-HPMC sinomsebenzi womphezulu. Ine-emulsifying effect, ikhusela isakhono se-colloid kunye nokuzinza kwesihlobo.
I-Thermal Gelation: Xa ishushu ngaphezu kobushushu obuthile, isisombululo se-aqueous se-HPMC sinokuba ne-opaque, sivelise imvula, kwaye silahlekelwe yi-viscosity. Nangona kunjalo, yatshintsha ngokuthe chu ukuya kwimeko yesisombululo emva kokupholisa.
Umxholo ophantsi womlotha: I-HPMC ayinayo i-ionic, inokuhlanjwa ngamanzi ashushu ngexesha lenkqubo yokulungiselela kwaye ihlanjululwe ngokufanelekileyo, ngoko umxholo wayo womlotha uphantsi kakhulu.
Ukumelana neTyuwa: Ekubeni le mveliso i-electrolyte engeyiyo i-ionic kunye ne-non-polymeric, izinzile kwizisombululo ezimanzi zetyuwa zetsimbi okanye i-electrolytes ye-organic.
Isiphumo sokugcina amanzi: Ngenxa yokuba i-HPMC iyi-hydrophilic kwaye isisombululo sayo samanzi sibonakala kakhulu. Ingongezwa kumdaka, i-gypsum, ipeyinti, njl njl ukugcina ukugcinwa kwamanzi aphezulu kwimveliso.
Ukumelana nokungunda: Inokumelana kakuhle nokungunda, kwaye inozinzo oluhle lwe-viscosity ngexesha lokugcinwa kwexesha elide.
Ukuthambisa: Ukongeza i-HPMC kunokunciphisa i-friction coefficient kunye nokuphucula ukuthambisa kweemveliso ze-ceramic ezikhutshiweyo kunye neemveliso zesamente.
Ipropathi yokwenza ifilimu: Inokuvelisa iiflakes ezinamandla, eziguquguqukayo, ezicacileyo kunye neoli elungileyo kunye nokumelana ne-ester.
Kwizinto zokwakha, i-HPMC cellulose ingasetyenziswa njenge-arhente yokugcina amanzi kunye ne-retarder kwi-slurry yesamente ukwenza i-mortar impompoke.
Njenge-adhesive, ukusetyenziswa kwe-HPMC kwi-plasters, i-gypsum, i-putty powder okanye ezinye izinto zokwakha kunokuphucula ukusasazeka kwazo kunye nokwandisa ixesha labo lokusebenza.
Ukugcinwa kwayo kwamanzi kunokuthintela intlama ekuqhekekeni ngokukhawuleza emva kokugquma, kwaye kunokonyusa amandla okugquma emva kokuqina.
Ngaphandle koko, imichiza ye-HPMC inokusetyenziswa njengesixhasi sokubambelela kwithayile, ibhastile, kunye nokuhombisa iplastiki kushishino lokwakha.
Ukongeza, i-HPMC powder isetyenziswa njenge-thickener, i-stabilizer, i-emulsifier, i-excipient, kunye ne-ejenti yokugcina amanzi kwimveliso yolunye ushishino, njenge-petrochemicals, i-coatings, izinto zokwakha, izisusa zepeyinti, iikhemikhali zezolimo, i-inki, ukuprintwa kwe-textile kunye nokudaya, iiseramics, ukwenza iphepha, izinto zokuthambisa, njl.
Iphakheji: 25 kgs / ibhegi okanye njengoko ucela.
Ugcino: Gcina kwindawo engenamoya, eyomileyo.
Imigangatho eyenziweyo: iMigangatho yeHlabathi.
