Nguwuphi umahluko phakathi kwe-HPMC kunye ne-hec?

I-HPMC

1. Umahluko kwimo yemichiza
I-HPMC kunye ne-HEC zizo zombini iiseli ze-enit ziqhubekeka kwi-sellulose yendalo (njengekotoni okanye i-cotton okanye i-pulp), kodwa zahlukile kwiindawo ezinabantu.

I-HPMC (Hydroxypropyl Methylcelceltulose) Inqanaba lokufakwa endaweni ye-methyl kunye namaqela e-hydroxypropy amisela iipropathi ze-HPMC.
I-Hec (i-Hydroxyyl seluplose): Hec sisisele i-gather eyenziwe ngokutshintsha inxenye yamaqela e-hydroxyl kunye ne-hydroxytethy amaqela (-Ch₂ch.com.
Lo mahluko kwimo yemichiza ichaphazela ngokuthe ngqo ukulima kwabo, uVeksisity, kunye nezinye iipropathi zomzimba.

I-2. Ukungasebenzi kunye neemeko zokuchitha
I-HPMC: i-HPMC inomhlaba obalaseleyo wamanzi kwaye inokuchithwa kumanzi abandayo ukwenza isisombululo se-viscous esibonakalayo. Ingancitshiswa kwizinyibiliki ezifana ne-ethanol, i-acetone, njl njl. Into ebalulekileyo ye-HPMC kukuba iyanyibilika emanzini abandayo, ngelixa ixesha lokufudumeza isisombululo (ijika ibe yijele xa ivuthiwe). Le ndawo ibaluleke kakhulu kwimihlaba enjengokwakha kunye neengubo.

Hec: hec nayo inyibilikisa emanzini abandayo, kodwa ngokungafaniyo i-HPMC, i-HEC ayingquli emanzini ashushu. Ke ngoko, i-hec inokusetyenziswa ngaphezulu kwenqanaba lobushushu. I-HEC inonyamezelo olomeleleyo lwetyuwa kunye neepropathi ezinkulu kwaye ilungele ukusetyenziswa kwizisombululo eziqulathe ii-electroneytes.

I-3. I-Vilosity kunye neePropathi zeRheOologries
Uhlobo lwe-HPMC kunye ne-HEC iyahluka ngokulinganayo kwemolekyuli, kwaye zombini zineziphumo ezilungileyo zokugxila ezahlukeneyo:

I-HPMC: i-HPMC ibonisa i-pseudoplasticistic (okt, iipropathi ze-Shear-Dricting) kwisisombululo. Uhlobo lwe-HPMC Solutions luyanda xa i-Shear inyuka, ibenza balungele ukusetyenziswa ngokulula kwe-HPMC, kwaye ijeli iya kwenza ubushushu obuthile.

I-hec: Izisombululo zeheks zinezinto eziphakamileyo ze-viscofity kunye neepropathi ezingcono kumazinga asezantsi asezantsi, ebonisa iipropathi ze-Newnaian Shearial Sheat (okt uxinzelelo lwe-Shear luhambelana nenqanaba le-Shear). Ukongeza, izisombululo ze-hec zineenguqu ezincinci zotshintsho kwiindawo ezinazo iityiwa kunye nee-elektroniki, kwaye zichasane netyuwa elungileyo. Zisetyenziswa ngokubanzi kumasimi afuna ukumelana netyuwa, njengokukhutshwa kweoyile kunye nonyango lodaka.

I-4. Umahluko kwimimandla yesicelo
Nangona zombini i-HPMC kunye ne-HEC inokusetyenziswa njengezintshulube, imikhosi yefilimu, imizila yefilimu, njl. Njl.

Izicelo ze-HPMC:
Ishishini lokwakha: I-HPMC isetyenziswa njengearhente yokuthambisa kunye nearhente yokugcina amanzi kwicandelo lezinto zokwakha ezifana nodaka lwesamente, iimveliso ze-gypsim, kunye ne-ceramic theramives. Iphucula ukusebenza kodaka, iyamelana ne-igit, kwaye yandisa ixesha elivulekileyo lodaka.
Amabala kamachiza kunye nokutya: Kumayeza, i-HPMC ihlala isetyenziswa njengezinto zokuzihlaziya kwiitafile kunye nezinto zesakhelo kumalungiselelo anzileyo okukhutshelwa. Kwishishini lokutya, i-HPMC isetyenziswa njengesongezo sokutya, ikakhulu njenge-emulsifier, i-thicker, kunye nokuzinzisa.
Umzi-mveliso weekhemikhali zemihla ngemihla: I-HPMC isetyenziswa njenge-emulsion stabilizer, i-tickener, kunye nokwenza isithako sokukhusela ifilimu kwi-cosmetics kunye neemveliso zononophelo lomntu.

Izicelo zehek:
Ukukhutshwa kweoyile: Kuba i-HEC inonyamezelo olunamandla kwiityuwa, kufanelekile ukuba isetyenziswe njenge-arhente yokuthambisa ngokuqhutywa kwee-fluids kunye nokuqhekeza imigangatho ephezulu yodaka.
Umzi mveliso oqengqelekayo: I-HEC isetyenziswa njenge-thi cokener kunye nokuzinza kwimveliso esekwe emanzini. Ingaphucula ukuSebenza nokuSebenza kokuSebenza kokukhathaza nokuthintela ukungcungcutheka ukusuka ekutsaleni.
I-papermang kunye nemveliso ye-imeyile: I-HEC inokusetyenziselwa ukwenza ubungakanani bomphezulu kwipapermandus kunye nokuthambisa kunyango kumzi-mveliso wendwangu ukuya kuthi ga kwimveliso, ukuzinza kunye nokulungelelanisa iipropathi ze-roheeologries.

5. Uzinzo lwendalo kunye ne-biomatise
I-HPMC: i-HPMC isetyenziswa rhoqo kwimimandla yamayeza kunye nokutya ngenxa ye-bimoMPini yayo elungileyo kunye ne-biodegradiance. Iipropathi zayo zokuthengisa i-thermal zikwanika izibonelelo ezizodwa kubushushu obuthile bamaqondo obushushu obuthathaka. Ngaphaya koko, i-HPMC ngu-Noinic, ongafakwanga yi-electrolyxes, kwaye inozinzo oluhle kwiinguqu.

Hec: hec nayo ine-bimoMPines elungileyo kunye nokungasebenzi, kodwa ibonakalisa uzinzo olukhulu kwimithombo yetyuwa ephezulu. Ke ngoko, i-hec iluhlobo olungcono apho ukunganyangeki kwetyuwa kunye nokuxhathisa kwe-electrolyte kuyadingeka, njengokuhlolwa kweoyile, ubunjineli bobuchwephesha, njl.

I-6. Iindleko kunye nokuBonelwa
Kuba zombini i-HPMC kunye ne-HEC zivela kwi-seluplose yendalo, ukuhanjiswa kwezinto eziluhlaza zizinzile, kodwa ngenxa yeenkqubo ezahlukeneyo zemveliso, iindleko zemveliso ze-HPMC zihlala ziphezulu kune-hec. Oku kwenza ukuba i-hec isetyenziswe ngokubanzi kwizicelo ezithile ezinobuthathaka kakhulu, ezinjengezinto zokwakha, iikhemikhali ze-oyile, njl.

I-HPMC kunye ne-hec zezibini ezibalulekileyo zesellulose. Nangona zihlukile kwisakhiwo sekhemikhali, bobabini banemisebenzi enjengokuthamba, ukuzinza, ukugcinwa kwamanzi kunye nokwenza ifilimu. Ngokumalunga nokhetho oluthile lwesicelo, i-HPMC ifumana indawo ebalulekileyo ekwakhiweni, amalungiselelo ngamayeza amayeza kunye namashishini okutya ngenxa yepropathi yakhe yokuthengisa; Ngelixa i-hec idlala indima ebalulekileyo kumzi-mveliso wePetroleum ngenxa yokunyamezelana kwetyuwa kunye nobushushu obubanzi. Iluncedo ngakumbi kwimigodi kunye nekhwele elisekwe emanzini. Ngokwezicelo ezahlukeneyo zesicelo, ukukhetha izibonelelo ezifanelekileyo zeselselose kunokuphucula ukusebenza kwemveliso kunye nezibonelelo zoqoqosho.