1. Yini ukusetshenziswa okuyinhloko kwe-hydroxypropyll methylcellulose?
I-HPMC isetshenziswa kabanzi ezintweni zokwakha, izimbobo, ama-desin zokwenziwa, ubumba - ubumba, umuthi, ukudla, izimbotshana, ugwayi kanye nezinye izimboni. I-HPMC ingahlukaniswa iba ibanga lezimboni, ibanga lokudla kanye nebanga lezemithi ngokuya ngokusetshenziswa kwalo.
2. Kunezinhlobo eziningi ze-hydroxypropylyll methylcellulose. Uyini umehluko phakathi kwabo?
I-HPMC ingahlukaniswa ngohlobo olusheshayo (i-Brand Suffix "S") nohlobo olushisayo. Imikhiqizo yohlobo olusheshayo isabalala ngokushesha emanzini abandayo futhi inyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala ngoba i-HPMC ihlakazeka emanzini kuphela futhi ayinaso sisombululo sangempela. Ngemuva kwa- (kuvuse) imizuzu emi-2, i-viscosity yoketshezi inyuka kancane futhi kwakhiwa i-colloid esobala ye-viscous. Imikhiqizo eshisayo eshisayo, emanzini abandayo, ingasabalalisa ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho amazinga okushisa ehla emazingeni okushisa athile (ngokuya ngokushisa kwe-gel komkhiqizo), i-viscosity evele kancane kuze kube yilapho kudalwa i-colloid esobala ne-viscous.
3. Iziphi izindlela ze-hydroxypropyll methylcellulose izindlela?
1. Wonke amamodeli angangezwa kulokho okuhlanganiswe ngokuxuba okulomile;
2. Kudinga ukungezelelwa ngqo kwikhambi elijwayelekile lokushisa lamanzi. Kungcono ukusebenzisa uhlobo lokuhlakazwa kwamanzi abandayo. Ngemuva kwalokho, imvamisa ifinyelela ukuqina kungakapheli imizuzu eyi-10-90 (ivuse, ivuse, ivuse)
3. Ngamamodeli ajwayelekile, uvuse futhi usakaze ngamanzi ashisayo kuqala, engeza amanzi abandayo ukuncibilikisa ngemuva kokuvusa nokupholisa.
I-4. Uma ukuhlangana noma ukugoqa kwenzeka ngesikhathi sokuchithwa, kungenxa yokuthi ukushukumisa kunganele noma imodeli ejwayelekile ingezwe ngqo emanzini abandayo. Ngalesi sikhathi, vusa ngokushesha.
5 ingezwe.
4. Ungahlulela kanjani ikhwalithi ye-hydroxypropyllylylylykl methylcellulose kalula nangokuqondile?
1. Ubumsulwa. Yize ubumsulwa bungahluleli ukuthi i-HPMC ilungile noma cha, futhi ukwengeza ama-whitening ajenti ngesikhathi sokukhiqiza kuzothinta ikhwalithi yayo, imikhiqizo emihle kakhulu inombala omuhle.
2
3. Ukuhamba okukhanyayo: I-HPMC yakha i-colloid esobala emanzini. Bheka ukudluliselwa kokukhanya. Lapho likhulisa ukudluliselwa kokukhanya, okungcono kakhulu okuphelele, okusho ukuthi kunezinto ezingaphansi kwemali ezingaphansi kwayo. I-reactoror mpo ngokuvamile ilungile, futhi i-expontal reactor izokhipha abanye. Kepha akunakushiwo ukuthi ikhwalithi yokukhiqiza yama-kettles mpo ingcono kunaleyo yamakhethini avundlile. Kunezinto eziningi ezinquma ikhwalithi yomkhiqizo.
4. Amandla adonsela phansi athile: Lapho amandla adonsela phansi athile, okusindayo kube ngcono. Lapho likhudlwana amandla adonsela phansi, okuphezulu kwe-hydroxypropyl. Ngokuvamile, okuphezulu kwe-hydroxypropyl, okungcono ukugcinwa kwamanzi.
I-5. Ngabe i-hydroxypropylll methylcellose isetshenziswa malini ku-putty powder?
Inani le-HPMC elisetshenzisiwe kuzinhlelo zokusebenza zangempela liyahlukahluka kuye ngezindawo, livame ukukhuluma, liphakathi kwe-4-5 kg, ngokuya ngekhwalithi ye-calcium ash, ifomula ye-Puterty ye-Puter.
6. Yini i-viscosity ye-hydroxypropyll methylcellulose?
I-putty powder ngokuvamile ibiza i-RMB 100,000, ngenkathi udaka elinezidingo eziphakeme. Kubiza i-RMB 150,000 ukuba kube lula ukuyisebenzisa. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcina amanzi, alandelwe ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (7-8), kungenzeka futhi. Vele, kukhula okukhulu kakhulu, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscosity ingaphezulu kuka-100,000, i-viscosity inomthelela omncane ekugcinweni kwamanzi.
7. Yiziphi izinkomba eziphambili zobuchwepheshe ze-hydroxypropllllyllose methylcellulose?
Okuqukethwe kwe-hydroxypropyl
Okuqukethwe kwe-methyl
ukuhlakanipha
Umlotha
Ukwehla kwesisindo esomile
8. Yiziphi izinto eziphambili ezingavuthiwe ze-hydroxypropylllyllose methylcellulose?
Izinto zokusetshenziswa eziphambili ze-HPMC: ukotini ocwengiwe, i-methyl chloride, i-propelene oxide, ezinye izinto eziluhlaza, i-caustic soda, ne-acid toluene.
9. Isicelo kanye nomsebenzi omkhulu we-hydroxypropyllllylyll methylcellulose ku-putty powder, kuyikhemikhali?
Ku-putty powder, idlala imisebenzi emithathu emikhulu: ukuqina, ukugcinwa kwamanzi nokwakha. Ukuqina kungakhuza iselula futhi kudlale indima yokusongela, ukugcina umfaniswano wesixazululo phezulu naphansi futhi kuvinjelwe ukugcwala. Ukugcinwa kwamanzi: yenza i-putty powder eyomile kancane kancane futhi isize i-grey calcium ukusabela ngaphansi kwesenzo samanzi. Ukusebenza: I-cellulose inomphumela wokuthambisa, okwenza i-putty powder ibe nokusebenza okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali futhi idlala indima esekelayo kuphela.
10. I-Hydroxypropyll Methylcellulose iyi-ether engeyona eye-cellulose, ngakho-ke luyini uhlobo lwe-ionic?
Ngokuvamile, izinto ezi-inert azizibandakanyi ekuphendukeni kwamakhemikhali.
I-CMC (i-carboxymethylcellulose) iyi-cellulose ye-cationic futhi izophenduka ibe ngama-tofu dregs lapho ivezwa umlotha we-calcium.
11. Yini okushisa kwe-gel ye-hydroxypropylllylylylyll methylcellulose ahlobene nalo?
Ukushisa kwe-gel kwe-HPMC kuhlobene nokuqukethwe kwayo methoxy. Okuqukethwe kwe-methoxyl, okuphezulu kwe-gel lokushisa.
12. Ngabe kukhona ubudlelwano phakathi kwe-putty powder ne-hydroxypropylll methylcellulose?
Lokhu kubalulekile! I-HPMC inokugcinwa kwamanzi okumpofu futhi izodala i-Poift.
13. Uyini umehluko kwinqubo yokukhiqiza phakathi kwesixazululo samanzi abandayo nesixazululo samanzi ashisayo we-hydroxypropylylylylyllose?
Uhlobo lwe-HPMC olubandayo lwamanzi olushayelwa amanzi luyahlakazwa ngokushesha emanzini abandayo ngemuva kokwelashwa komhlaba nge-glyxal, kepha empeleni ayincibiliki. I-viscosity iyakhuphuka, okungukuthi, iyancibilika. Uhlobo olushisayo lungabonakali lungaphethwe yi-glyxal. I-GYLOXAL inkulu ngosayizi futhi ihlakazeka ngokushesha, kepha ine-viscosity ehamba kancane nevolumu elincane, futhi okuphambene nalokho.
14. Yini iphunga le-hydroxypropyllyllose methylcellulose?
I-HPMC ekhiqizwa indlela ye-solvent yenziwa nge-toluene notshwala be-isopropyl njengama-solvents. Uma kungagezwa kahle, kuzoba nephunga elisele. (Ukungathathi hlangothi nokuphinda usebenzise kabusha kuyinqubo ebalulekile yephunga)
15. Ungayikhetha Kanjani i-hydroxcellulose efanelekile ye-methylcellulose yokusetshenziswa okuhlukile?
I-PuTTY Powder: Izidingo eziphakeme zokugcinwa kwamanzi kanye nokwakha okuhle kokwakha (uhlobo olunconyiwe: 7010n)
Udaka olwejwayelekile osuselwa kuso usimende
Isicelo Sokunamathela Kwezokwakha: Umkhiqizo osheshayo, ukubonakala okuphezulu. (Umkhiqizo Onconyiwe: I-HPK200ms)
UGression we-Gypsum: Ukugcinwa kwamanzi okuphezulu, ukubonakala okuphakathi nendawo okuphansi, ukuhlakanipha okusheshayo (ibanga elinconyiwe: hpkk600m)
16. Yiliphi elinye igama le-hydroxypropylll methylcellulose?
I-HPMC noma i-MHPC yaziwa nangokuthi i-hydroxypropyll methylcellulose kanye hydroxypropyl methylcellulose ether.
17. Ukusebenza kwe-hydroxypropyllylym methylcellulose ku-putty powder. Yini ebangela uPutty Powder to Foam?
I-HPMC idlala izindima ezintathu ezinkulu ku-putty powder: ukuqina, ukugcinwa kwamanzi nokwakha. Izizathu zama-bubble yilezi:
1. Faka amanzi amaningi.
2. Uma ezansi asomile, ukuklwebelana ngenye isendlalelo ngaphezulu kuzodala ama-blists kalula.
18. Uyini umehluko phakathi kwe-hydroxypropylllylyll methylcellulose ne-MC:
I-MC, i-methyl cellulose, yenziwa kusuka kukotini ecwengekile ngemuva kokwelashwa kwe-alkali, usebenzisa i-methane chloride njenge-ejenti yokuthethelela, kanye nochungechunge lokuphendula ukukhiqiza i-cellulose ether. I-General degree yokufaka esikhundleni ngu-1.6-2.0, kanye ne-solubility yamazinga ahlukene wokufaka esikhundleni futhi ahlukile. Kuyi-ether ye-celtuleose engeyona eye-ionic.
. Ngokuvamile, inani lokungeza likhulu, ubuciko buncane, i-viscosity iphakeme, kanti izinga lokugcina amanzi liphezulu. Inani lokungezelelwa linethonya elikhulu kumazinga okugcina amanzi, futhi i-viscosity ayihlangene nenani lokugcinwa kwamanzi. Izinga lokuchithwa ikakhulukazi lincike ngezinga lokuguqulwa komhlaba nobude bezinhlayiyana zezinhlayiyana ze-cellulose. Phakathi kwalezi zinto eziphakeme ngenhla kwe-cellulose, i-methylcellose kanye ne-hydroxypropylmerylcellosis zinamazinga aphezulu okugcina amanzi.
(2) I-methyl celtulese ingachithwa emanzini abandayo, kepha izobhekana nobunzima ekunciphiseni emanzini ashisayo. Isixazululo sayo esinamanzi sizinzile kakhulu ebangeni le-PH = 3-12, futhi sinokuhambisana okuhle nesitashi kanye nokungasebenzi okuningi. Lapho izinga lokushisa lifinyelela ijeli lapho izinga lokushisa le-gelation likhuphuka, kuzokwenzeka.
(3) Izinguquko zokushisa zizothinta kakhulu isilinganiso sokugcinwa kwamanzi se-methylcellulose. Ngokuvamile, izinga lokushisa eliphakeme, elibi kakhulu inani lokugcina amanzi. Uma izinga lokushisa lodaka lidlula ama-degree angama-40, ukugcinwa kwamanzi kwe-methylcellose kuzokonakala kakhulu, kuthinte kabi ukwakhiwa kodaka.
(4) I-Methylcellose inomthelela omkhulu ekwakhiweni nasekunamathiselwe kodaka. Ukunamathelisa lapha kubhekisela ekuhlolweni okuzwakala phakathi kwethuluzi lesicelo soMsebenzi kanye nezinto zodonga, okungukuthi, ukumelana nokugula kodaka ngodaka. Ukunamatheks kuphakeme, ukumelana kwama-shuar wodaka kuphakeme, futhi amandla afunwa yizisebenzi ngesikhathi aphezulu, ngakho-ke ukusebenza kodaka kumpofu.
Isikhathi Seposi: Jan-31-2024