Yiziphi izinkinga ezivamile ze-hydroxypropyllylylyll methylcellulose?

1. Yiluphi uhlelo lokusebenza oluphambili lwe-hydroxypropyllll methylcellulose (HPMC)?

I-Hydroxypropyllyrylyly isetshenziswa kabanzi ezintweni zokwakha, izimbobo, ama-desin zokwenziwa, ubumba - ubumba, umuthi, ugwayi kanye nezinye izimboni. I-Hydroxypropyllylylylyl ingahlukaniswa ebangeni lokwakha, ibanga lokudla kanye nebanga lemithi ngokuya ngesicelo salo. Njengamanje, iningi lemikhiqizo yasekhaya ibangeni lokwakha. Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe ama-90% asetshenziselwa i-putty powder, futhi konke kusetshenziselwa udaka ngosimende neglue.

2. Kunezinhlobo eziningana ze-hydroxypropyll methylcellulose (HPMC), futhi yini umehluko ekusebenziseni kwazo?

I-HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo lokuqothula. Imikhiqizo yohlobo olusheshayo isabalalisa ngokushesha lapho ihlangana namanzi abandayo futhi inyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala ngoba i-HPMC ihlakazeka kuphela emanzini ngaphandle kokuchithwa kwangempela. Ngemuva kwemizuzu engaba mi-2, i-viscosity yoketshezi inyuka kancane kancane, yakha i-colloid esobala ye-volcous. Imikhiqizo eshisayo ehlekisayo, lapho ihlangana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho amazinga okushisa ehla emazingeni okushisa athile, i-viscosity izovela kancane kancane ize ibe yi-colloid esobala ye-viscous. Uhlobo olushisayo olushisayo lungasetshenziswa kuphela ku-putty powder nodaka. Ku-glue kefu upende, kuzoba khona into ehlelekile futhi ngeke isetshenziswe. Uhlobo olusheshayo lunebanga elibanzi lezicelo. Ingasetshenziswa ku-putty powder kanye nodaka, kanye ne-glue key upende, ngaphandle kokuphikisana.

3. Iziphi izindlela zokuchithwa kwe-hydroxypropyllyllose methylcellulose (HPMC)?

Indlela eshisayo yokuchithwa kwamanzi Izindlela ezimbili ezijwayelekile zichazwa ngale ndlela elandelayo:

1) Faka inani elidingekayo lamanzi ashisayo esitsheni bese usishisa cishe ku-70 ° C. I-hydroxypropyll methylcellose yangezwa kancane kancane ngaphansi kokuvuselelwa kancane, ekuqaleni i-HPMC yantanta ebusweni bamanzi, bese kancane kancane yakha kancane kancane, eyayipholile ngaphansi komoya.

2) Faka u-1/3 noma 2/3 wenani elidingekayo lamanzi esitsheni, bese usishisa ku-70 ° C, ngokwendlela ye-1), usabalabele i-HPMC ukulungiselela ama-slurry ashisayo; Bese ufaka inani elisele lamanzi abandayo kumanzi ashisayo ashisayo, ingxube ipholile ngemuva kokuvusa.

Indlela yokuxuba ye-powder: hlanganisa i-hpmc powder ngenani elikhulu lezinye izinto eziyimpungushe, bese ufaka amanzi ukuze uncibilike, ngoba i-HPMC encane kuphela ngaphandle kwe-powder encane ekhoneni, izoncibilika ngokushesha lapho kuhlangana khona namanzi. - Abakhiqizi be-powder kanye nabakhiqizi badaka basebenzisa le ndlela. [I-Hydroxypropyl Methylcellulose (HPMC) isetshenziswa njenge-ejenti yokugcina amanzi ku-putty powder wodumba.]

4. Ungahlulela kanjani ikhwalithi ye-hydroxypropyllykylm methylcellulose (HPMC) kalula futhi ngokuqondile?

. Kodwa-ke, iningi lemikhiqizo emihle limhlophe.

. Ubuciko obuhle, obukhuluma ngokuvamile, obungcono.

. Lapho kuphakama, okungcono, okubonisa ukuthi kukhona ukungasebenzi okuncane kuyo. Imvume yokuphendula okuqondile ngokuvamile ilungile, futhi lokho kuphendula okuvundlile kubi kakhulu, kepha akusho ukuthi ikhwalithi yokuphendula mpo ingcono kunaleyo yokuphendula okuvundlile, kanye nekhwalithi yomkhiqizo kunqunywa ngezinto eziningi.

(4) Ukudonsela phansi okuthile: Kukhudlwana amandla adonsela phansi athile, okusindayo kube ngcono. Ukucaciswa kukhulu, ngokuvamile ngoba okuqukethwe kweHydroxypropyl Group kuyo kuphezulu, futhi okuqukethwe kweHydroxypropyl Group kuphezulu, ukugcinwa kwamanzi kungcono.

I-5. Ithini inani le-hydroxypropyll methylcellulose (HPMC) ku-putty powder?

Inani le-HPMC elisetshenziswa ezinhlelweni ezingokoqobo liyahlukahluka ngokuya ngesimo sezulu, izinga lokushisa, ikhwalithi ye-Ash calcium yasendaweni, ifomula ye-putty powder kanye "nekhwalithi edingwa amakhasimende". Ngokuvamile, phakathi kuka-4 kg no-5 kg. Isibonelo: Iningi le-putty powder eBeijing lingu-5 kg; Iningi le-putty powder eGuizhou lingu-5 kg ​​ehlobo kanye ne-4,5 kg ebusika; Inani le-putty powder eYunnan lincane, ngokuvamile ama-3 kg kuya ku-4 kg, njll.

6. Yini i-viscosity efanele ye-hydroxypropyllyllose methylcellulose (HPMC)?

I-PuTTY SUCK ngokuvamile yanele i-yuan eyi-100,000, futhi izidingo zodaka ziphakeme, kanti ezingama-150,000 yuan ziyadingeka ukuze zisetshenziswe kalula. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcinwa kwamanzi, kulandelwa ukuqina. Ku-putty powder, inqobo nje uma ukugcinwa kwamanzi kuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Vele, ukukhuphuka okuphezulu, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscoty idlula i-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Akusekho.

7. Yiziphi izinkomba eziphambili zobuchwepheshe ze-hydroxypropyllyllose methylcellulose (HPMC)?

Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, iningi labasebenzisi likhathazekile ngalezi zinkomba ezimbili. Labo abanokuqukethwe okuphezulu kwe-hydroxypropyl ngokuvamile banokugcinwa okungcono kwamanzi. Lowo onokuqonda okuphezulu unokugcinwa kwamanzi okungcono, ngokulinganayo (hhayi ngokuphelele), futhi lowo onamandla aphezulu asetshenziswa kangcono ngodaka kasimende.

8. Yiziphi izinto eziphambili ezingavuthiwe ze-hydroxypropyllyllose methylcellulose (HPMC)?

Izinto zokusetshenziswa eziphambili ze-hydroxypropylllyrlose (HPMC): I-methyl chloride, i-methyl chloride, i-propylene oxide, nezinye izinto eziluhlaza, i-acid soda, i-acid, i-acid, i-acip.

9. Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-Putty Powder, futhi kwenzeka ngamakhemikhali?

Ku-putty powder, i-HPMC idlala izindima ezintathu zokuqina, ukugcinwa kwamanzi nokwakha. Ukuqina 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. Ukungeza amanzi ku-putty powder bese ukuwabeka odongeni ukusabela kwamakhemikhali, ngoba kwakhiwa izinto ezintsha. Uma ususa i-putty powder odongeni osodongeni, gqoka lube yimpuphu, futhi uyisebenzise futhi, ngeke isebenze ngoba yenziwe izinto ezintsha (calcium carbonate). Izingxenye eziphambili ze-Ash Calcium Powder yilezi: Ingxube ye-CA (oh) 2, cao + h2o = 2

10. I-HPMC iyi-ether engeyona eye-cellulose, ngakho-ke yini okungeyona eye-ionic?

Ngokwemigomo ka-Lamben, okungewona ama-ion yizinto ezingasho lutho emanzini. I-Ionization isho inqubo lapho i-electrolyte ihlukaniswe khona ngama-ion ashadiwe angahamba ngokukhululeka kwi-solvent ethile (njengamanzi, utshwala). Isibonelo, i-sodium chloride (i-NACL), usawoti esiwudlayo nsuku zonke, anciphise emanzini kanye nama-ionizes ukukhiqiza ngokukhululekile ama-sodium ion (NA +) akhokhiswa kahle nama-chloride ions (cl) akhokhiswa kabi. Lokho kusho ukuthi, lapho i-HPMC ibekwa emanzini, ngeke ihlukanise ama-ions amakhokho, kepha ikhona ngesimo sama-molecule.