Iintlobo, umahluko kunye nokusetyenziswa HPMC

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.