Yini ukusetshenziswa okuyinhloko kwe-hydroxypropyllylyll methylcellulose?

I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ukumboza, ama-desin okwenziwa, ama-ceramics, umuthi, ukudla, izindwangu, amazweli, ugwayi kanye nezinye izimboni. I-HPMC ingahlukaniswa iba ibanga lezimboni, ibanga lokudla kanye nebanga lemithi ngokuya ngesicelo.

I-2hydroxypypropylllylyly ihlukaniswe izinhlobo eziningana, futhi yini umehluko ekusetshenzisweni kwazo?

I-HPMC ingahlukaniswa ngohlobo olusheshayo (igama legama legama lomkhiqizo "s") nohlobo olushisayo. Imikhiqizo yohlobo olusheshayo isabalala ngokushesha emanzini abandayo futhi inyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala ngoba i-HPMC ihlakazeka kuphela emanzini ngaphandle kokuchithwa kwangempela. Mayelana (okuvuselelayo) imizuzu emi-2, i-viscosity yoketshezi inyuka kancane kancane, yakha i-colloid emhlophe ekhanyayo. Imikhiqizo eshisayo ehlekisayo, lapho ihlangabezana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho amazinga okushisa ehla emazingeni okushisa athile (ngokushisa kwe-gel yomkhiqizo), i-viscosity izovela kancane ize ifike lapho kwakha i-colloid esobala ye-viscous.

Iziphi izindlela zokuqothula ze-3 hydroxypropyll methylcellulose?

1) Onke amamodeli angangezwa kulokho okwenziwe ngendlela eyomile yokuxuba;
2) Uma kudingeka ukuthi ingezwe ngqo kwisisombululo esijwayelekile samanzi samanzi okushisa, kungcono ukusebenzisa uhlobo lokuhlakazeka kwamanzi okubandayo, futhi kuvame ukuthatha imizuzu eyi-10-90 ukuqina ngemuva kokungeza (ukuvuse futhi uvuse)
3) Imodeli ejwayelekile ivuselelwa futhi ihlakazeke ngamanzi ashisayo kuqala, khona-ke ingachithwa ngemuva kokungeza amanzi abandayo ukuvusa nokupholisa;
4) Uma i-agglomeration kanye nokugoqa kwenzeka ngesikhathi sokuchithwa, kungenxa yokuthi ukushukumisa kunganele noma imodeli ejwayelekile ingezwe ngqo emanzini abandayo. Ngalesi sikhathi, kufanele kuvuswe ngokushesha. le khasi
5) Uma ama-bubble akhiqizwa ngesikhathi sokuchithwa, angashiywa ukuze ame amahora angama-2-16 (isikhathi esithile sinqunywa ngokuguquguquka kwesisombululo) noma asuswe yi-vacuamung, asuswe, noma inani elifanele le-ejenti le-defoauming lingangezwa. le khasi

4 Ungahlulela kanjani ikhwalithi ye-hydroxypropyllylylylyll methylcellulose kalula nangokuqondile?

1) Ubumsulwa, yize ubumsulwa bungeke bunqume ukuthi ngabe i-HPMC kulula ukuyisebenzisa, futhi uma kufakwa ama-anchents amhlophe kwinqubo yokukhiqiza, kuzothinta ikhwalithi yawo, kepha iningi lemikhiqizo emihle limhlophe.
2) Ubuciko: Ubumsulwa be-HPMC ngokuvamile bunama-mesh angama-80 ne-100 mesh, ama-mesh ayi-120 aphansi, ahle kakhulu.
3) Ukuhamba okukhanyayo: Ngemuva kokuthi i-HPMC ibekwe emanzini ukwakha i-colloid esobala, bheka ukudluliselwa kwayo okukhanyayo. Lapho kukhudlwana okukhanyayo okukhanyayo, okungcono, okubonisa ukuthi kunezihlakala ezingaphansi kwalo, futhi ukudluliselwa kwama-reactors mpo ngokuvamile kulungile. , I-Reactor evundlile imbi kakhulu, kepha akusho ukuthi ikhwalithi ye-reactoror mpo ingcono kunaleyo yokuphendula okuvundlile, futhi kunezici eziningi zokuthola ikhwalithi yomkhiqizo.
4) Ubungako Obuthile: Kukhudlwana amandla adonsela phansi athile, okusindayo kube ngcono. Ukuphakama kwamandla adonsela phansi okuthile, okuphezulu okuqukethwe kwe-hydroxypropyl kuMkhiqizo. Okuqukethwe okuphezulu kwe-hydroxypropyl, okungcono ukugcinwa kwamanzi.

5 Liyini inani le-hydroxypropyll methylcellulose ku-putty powder?

Inani le-HPMC elisetshenziswe ezinceku ezisebenzayo lithintwa yisimo sezulu, izinga lokushisa, ikhwalithi ye-Ash calcium yasendaweni, ifomula ye-putty powder nekhwalithi edingwa amakhasimende. Kunokwehluka ezindaweni ezahlukahlukene, ngokuvamile ukukhuluma, kuphakathi kuka-4-5 kg.

Yini i-viscosity efanelekile ye-6 hydroxypropyllyrlose methylcellulose?

Ngokuvamile, i-100,000 putty powder yanele, futhi imfuneko edonswayo iphakeme, futhi idinga u-150,000 ukuze kube lula ukuyisebenzisa. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcinwa kwamanzi, kulandelwa ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (7-8), kungenzeka futhi. Vele, ukukhuphuka okuphezulu, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscosity yeqa i-100,000, i-viscosity ayinamthelela ekugcinweni kwamanzi. omkhulu.

7 Yiziphi izinkomba eziphambili zobuchwepheshe ze-hydroxypropyll methylcellulose?

Okuqukethwe kwe-hydroxypropyl
Okuqukethwe kwe-methyl
ukuhlakanipha
Umlotha
Ukulahleka kokuwomile

8 Yiziphi izinto eziphambili ezingavuthiwe ze-hydroxypropyllyrlose methylcellulose?

Izinto zokusetshenziswa eziphambili ze-HPMC: ukotini ocwengile, i-methyl chloride, i-propelene oxide, ezinye izinto eziluhlaza, i-caustic soda, i-acic solia, i-acid toluene.

9 Yimuphi umsebenzi oyinhloko wokusetshenziswa kwe-hydroxypropyllylylyly methylcellulose ku-putty powder, futhi kwenzeka ngamakhemikhali?

Phakathi kwe-putty powder, idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi nokwakha. Ukuqina, i-cellulose ingakhula ukumisa, gcina umfaniswano wesisombululo unyuke phezulu naphansi, futhi umelane nokugcwala. Ukugcinwa kwamanzi: yenza i-putty powder eyomile kancane, futhi isize i-ash calcium ukuze usabele ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokuthambisa, okungenza i-Putty Powder ibe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kepha idlala indima ebalulekile.

I-Hydroxypropylll methylcellulose iyi-ether engeyona eye-cellulose, ngakho-ke yini okungeyona eye-ionic?

Ngokwemigomo ka-Lamberman, izinto ezi-inert azihlanganyeli ekuphendukeni kwamakhemikhali.

I-CMC (i-carboxymethyl celtuleose) iyi-cellulose ye-cationes, ngakho-ke izophenduka ibe yi-bean curd lapho ihlangana ne-ash calcium.

11 Yini lokushisa le-gel le-hydroxypropyllllylyll methylcellulose ahlobene nalo?

Izinga lokushisa le-gel le-HPMC lihlobene nokuqukethwe kwalo methoxy, okuqukethwe kwe-methoxy, okuphezulu kwe-gel lokushisa.

12 Ingabe kukhona ubudlelwano phakathi kwethonsi le-putty powder ne-hydroxypropylll methylcellulose?

Kunobudlelwano! ! ! Kungumgcini wamanzi ompofu we-HPMC, ezodala ukulahleka kwempuphu.

13 Uyini umehluko phakathi kwamanzi abandayo asheshayo nezinhlobo ezishisayo ze-hydroxypropylyll methylcellulose kwinqubo yokukhiqiza?

Uhlobo lwamanzi olubandayo olusheshayo lwe-HPMC luphathwa yi-glyxical, futhi luhlakazeka ngokushesha emanzini abandayo, kepha alinciphise ngempela. Kuncibilika kuphela lapho i-viscosity inyuka. Izinhlobo ezishisayo zeMelt aziphathwa yi-glyxal. Uma inani le-Gyoxal likhulu, ukuhanjiswa kuzoshesha, kepha ukubonwa kuzokhuphuka kancane, futhi uma inani lincane, okuphambene nalo kuzoba iqiniso.

14 Yini iphunga le-hydroxypropylllylyll methylcellulose?

I-HPMC ekhiqizwa yi-solvent indlela isebenzisa i-toluene ne-isopropanol njenge-solvents. Uma ukugeza kungakuhle kakhulu, kuzoba nephunga elisalelayo. (Ukuvuselelwa kokungathathi hlangothi kuyinqubo ebalulekile yephunga)

Ukusetshenziswa okuhlukile okungu-15, kanjani ukukhetha i-hydroxcellulose efanelekile?

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Udaka olwejwayelekile olususelwa kuso usimende: kudinga ukugcinwa kwamanzi okuphezulu, ukumelana kwamazinga okushisa aphezulu, nokuvunywa ngokushesha (
Ukusetshenziswa kwe-glue yokwakha: imikhiqizo esheshayo enokubonakala okuphezulu.
UGenty Portar: Ukugcinwa kwamanzi okuphezulu, ukubonakala okuphakathi nendawo okuphansi, ukwanda okusheshayo okusheshayo

Ithini i-alias ye-16 hydroxypropyllyllose methylcellulose?

Kubizwa ngokuthi yi-HPMC noma i-MHPC Alias ​​Hypromellose, i-CelLose Hydroxypypropyll methyl ether.
17 Ukusetshenziswa kwe-hydroxypropyll methylcellulose ku-putty powder, yisiphi isizathu somoya wama-bubble womoya ku-putty powder?

Ku-putty powder, i-HPMC idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi nokwakha. Izizathu zama-bubble yilezi:

(1) Kungezwa amanzi amaningi.
(2) Lapho ungqimba olungaphansi alomile, bhala enye ungqimba ngaphezulu, futhi kulula ukugcwala.

18 Uyini umehluko phakathi kwe-hydroxypropyllylym methylcellulose kanye mc:

I-MC iyi-mettyl cellulose, eyenziwe nge-cellulose ether ngokola ukotini ocwengekile nge-alkali, usebenzisa i-methane chloride njenge-ejenti yokusheshisa, futhi ibhekana nochungechunge lokuphendula. Ngokuvamile, izinga lokufaka esikhundleni ngu-1.6-2.0, kanye ne-solubality liyahlukahluka ngamazinga ahlukene wokufaka esikhundleni. Okuhlukile, kungokwangeyena e-ether engeyona eye-cellulose.

. Ngokuvamile, uma inani lokungeza likhulu, ubuciko buncane, futhi i-viscoty inkulu, inani lokugcina lamanzi liphezulu. Phakathi kwazo, inani lokungeza linomthelela omkhulu kumanani okugcinwa kwamanzi womuntu. I-viscosity ayifani ngokulingana namazinga okugcina amanzi. Izinga lokuchithwa ikakhulukazi lincike ebusweni bezinhlayiya zeselula. Degree of ukuguqulwa kanye nobumsulwa bezinhlayiyana. Phakathi kwalezi zithambekela ezingenhla kwe-cellulose, i-methyl cellulose ne-hydroxyprosell methyl cellulose zinamazinga aphezulu okugcina amanzi.
(2) I-methylcellulose incanela emanzini abandayo, futhi kuzoba nzima ukuncibilika emanzini ashisayo. Isixazululo saso samanzi sizinzile kakhulu ebangeni le-PH = 3-12. Inokuhambisana okuhle nesitashi, njll. Futhi ama-surfactants amaningi. Lapho izinga lokushisa lapho izinga lokushisa le-gelation lifinyelelwa, kuzokwenzeka.
(3) Izinguquko zokushisa zizothinta kakhulu isilinganiso sokugcinwa kwamanzi se-methyl cellulose. Ngokuvamile, izinga lokushisa eliphakeme, elibi kakhulu inani lokugcina amanzi. Uma izinga lokushisa lodaka lidlula ama-degree angama-40, ukugcinwa kwamanzi kwe-methyl cellulose kuzoncishiswa kakhulu, okuzothinta kakhulu ukwakhiwa kodaka.
(4) I-methyl cellulose inomthelela omkhulu ekwakhiweni nasekunamathiselwe kodaka. Adhesion lapha kubhekiswa emandleni anamathela azwakala phakathi kwethuluzi lesisebenzi soMfakisicelo kanye ne-Wallstrate yodonga, okungukuthi, ukumelana nokugula kodaka ngodaka. Ukunamathelayo kuphakeme, ukumelana nokukhula kodaka kukhulu, futhi amandla afunwa yizisebenzi ezisezinhlelweni zokusebenzisa nawo inkulu, futhi ukwakhiwa kodaka kumpofu.