I-HPMC, igama elipheleleyo yi-Hydroxypropyl Methylcellulose, i-ether ye-cellulose engekho i-ionic esetyenziswa ngokubanzi kulwakhiwo, amayeza, ukutya, iikhemikhali zemihla ngemihla kunye nezinye iindawo.
1. Ukuhlelwa nge-viscosity
I-viscosity ye-HPMC yenye yezinto zayo ezibalulekileyo zomzimba, kwaye i-HPMC ene-viscosities eyahlukeneyo inomahluko omkhulu kwisicelo. Uluhlu lwe-viscosity luvela kwi-viscosity ephantsi (amashumi e-cps) ukuya kwi-viscosity ephezulu (amashumi amawaka e-cps).
I-HPMC ye-viscosity ephantsi: Ngokuqhelekileyo isetyenziswa kwizicelo ezifuna ukuchithwa ngokukhawuleza okanye ukugeleza, okufana nokunqunyanyiswa kwamayeza olwelo, izitshizi, njl.
Medium viscosity HPMC: isetyenziswa ngokubanzi kwiikhemikhali mihla, ezifana ishampu, ijeli yeshawa, njalo njalo, ukubonelela ngefuthe eliphakathi ukujiya kunye neempawu ezintle rheological.
I-viscosity ephezulu ye-HPMC: isetyenziswa kakhulu kwizinto zokwakha, ezifana nodaka olomileyo, i-ceramic tile adhesive, i-putty yangaphakathi kunye nengaphandle eludongeni, njl.
2. Ukuhlelwa ngokwenqanaba lokutshintshwa
Iqondo lokutshintshwa kwe-HPMC libhekiselele kwinani le-hydroxypropyl kunye ne-methyl substituent kwi-molecule yayo, edla ngokuchazwa njenge-MS (i-hydroxypropyl degree of substitution) kunye ne-DS (i-methyl substitution).
Iqondo eliphantsi lokutshintshwa kwe-HPMC: inyibilika ngokukhawuleza kwaye isetyenziswa ikakhulu kwizicelo ezifuna ukupheliswa okukhawulezileyo, okufana nokwalekwa kwethebhulethi yonyango kunye neziselo ezikhawulezileyo.
Iqondo eliphezulu lokutshintshwa kwe-HPMC: Ine-viscosity ephezulu kunye nokugcinwa kwamanzi okungcono, kwaye ifanelekile kwiimveliso ezifuna i-viscosity ephezulu kunye nokugcinwa kwamanzi aphezulu, njengezinto zokwakha kunye nezithambiso ezisebenzayo zokuthambisa.
3. Ukuhlelwa ngokweendawo zesicelo
Usetyenziso oluthile lwe-HPMC kwiinkalo ezahlukeneyo zohluka kakhulu, kwaye zinokwahlulwa ngokwezintlu zilandelayo ngokwemihlaba yesicelo:
izinto zokwakha
Indima ephambili ye-HPMC kwicandelo lokwakha kukuphucula ukusebenza kolwakhiwo kunye nokuqina kwezinto, kubandakanya:
Udaka olomileyo: I-HPMC ibonelela ngokugcinwa kakuhle kwamanzi, ukuthambisa kunye nokusebenza, ukuphucula ukusebenza kakuhle kolwakhiwo kunye nomgangatho wemveliso ogqityiweyo.
I-adhesive ye-tile: Ukwandisa amandla okubambisana kunye neempawu ezichasene ne-slip ukuqinisekisa ukuzinza kunye nokuqina kwe-tile paving.
Ipeyinti kunye ne-putty: Ukuphucula i-rheology kunye nokugcinwa kwamanzi kwipeyinti kunye ne-putty ukukhusela ukuqhekeka kunye nokulahlekelwa ngumgubo.
iyeza
Kwintsimi yamachiza, i-HPMC isetyenziswa ikakhulu njengabancedisi bamayeza, kubandakanywa:
Itheyibhile yokugubungela: Njengesixhobo sokugubungela ithebhulethi, ibonelela ngobungqina bokufuma, i-solubilization kunye nemisebenzi eqhubekayo yokukhupha ukuphucula ukuzinza kunye nokubonakala kweyeza.
I-Gel: isetyenziselwa ukulungisa iigels zamachiza, ukubonelela ngokubambelela kakuhle kunye nokuhambelana kwe-biocompatibility.
ukutya
I-HPMC isetyenziswa ikakhulu njenge-thickener, emulsifier kunye ne-stabilizer kushishino lokutya, kubandakanya:
Iimveliso ze-Noodle: Ukwandisa ukuqina kunye nokuqina kwentlama, ukuphucula ukunambitha kunye nokuthungwa.
Iimveliso zobisi: Njenge-emulsifier kunye ne-stabilizer, ikhusela i-stratification kunye nemvula yeemveliso zobisi kunye nokuphucula ukuzinza kwemveliso.
Imichiza yemihla ngemihla
Kwimichiza yemihla ngemihla, i-HPMC isetyenziswa ngokubanzi njengezityebi kunye nezinzisi, kubandakanya:
I-Shampoo kunye nejel yokuhlamba: Ukubonelela nge-viscosity ephakathi kunye ne-rheology ukuphucula amava okusetyenziswa kwemveliso.
Iimveliso zokhathalelo lwesikhumba: Njenge-thickener kunye ne-moisturizer, yongeza umphumo wokuthambisa kunye namava okusetyenziswa kwemveliso.
4. Ezinye iinjongo ezikhethekileyo
I-HPMC ingasetyenziswa kwezinye iindawo ezikhethekileyo, ezifana nemigodi ye-oyile, ishishini le-ceramic, ishishini lephepha, njl.
Imveliso ye-Oilfield: isetyenziselwa ukugrumba ulwelo kunye ne-fracturing fluids ukubonelela ngokugqwesa okugqwesileyo kunye neempawu zokunciphisa ilahleko yolwelo.
Umzi-mveliso weCeramic: isetyenziswa njengesibophelelo kunye ne-arhente yokuxhoma ukuphucula uzinzo kunye nolwelo oluludaka lweceramic.
Umzi-mveliso wokwenza amaphepha: esetyenziselwa ukunyangwa komphezulu wephepha ukwandisa amandla alo kunye nokumelana namanzi.
Njengento ephuma kwizinto ezininzi zeselulosi, i-HPMC ineempawu ezibalaseleyo zomzimba kunye neekhemikhali kunye nethemba losetyenziso olubanzi. Iindidi ezahlukeneyo ze-HPMC zineempawu zazo ngokwemigaqo ye-viscosity, iqondo lokuthatha indawo kunye nokusetyenziswa. Ukukhetha uhlobo olufanelekileyo lwe-HPMC ngokweemfuno ezithile zesicelo kunokuphucula kakhulu ukusebenza kwemveliso kunye nomgangatho. Ngokuqhubela phambili kwesayensi kunye nobuchwepheshe kunye nokwandiswa kweenkalo zezicelo, ukusetyenziswa kwe-HPMC kuya kuba banzi kunye nobunzulu.
Ixesha lokuposa: Jul-31-2024