I-Hydroxyethyl cellulose

I-Hydroxyethyl cellulose (HEC) iyisithako esimhlophe noma esiphuzi esikhanyayo, esingenaphunga, esingenabo ubuthi esinama-fibrous noma esiwuphuphu esilungiselelwe ngokushiswa kwe-alkaline cellulose kanye ne-ethylene oxide (noma i-chlorohydrin). Ama-nonionic soluble cellulose ethers. Ngenxa yokuthi i-HEC inezakhiwo ezinhle zokujiya, ukumisa, ukuhlakaza, ukuhlanganisa, ukubopha, ukwakha ifilimu, ukuvikela umswakama kanye nokunikeza ama-colloid avikelayo, isetshenziswe kabanzi ekuhloleni uwoyela, ukumboza, ukwakha, imithi kanye nokudla, izindwangu, ukwenza amaphepha kanye nama-polymer. I-Polymerization kanye neminye imikhakha. I-Hydroxyethyl cellulose ayizinzile ekushiseni okuvamile kanye nengcindezi, igwema umswakama, ukushisa, kanye nokushisa okuphezulu, futhi inokuncibilika kosawoti okuhle kakhulu kwama-dielectric. Isixazululo sayo samanzi sivunyelwe ukuqukatha amazinga aphezulu kasawoti futhi sizinzile.

Imiyalelo
Joyina ngqo ekukhiqizweni

1. Faka amanzi ahlanzekile ebhakedeni elikhulu elinomshini wokuxuba oshefa kakhulu.

2. Qala ukuxuba njalo ngesivinini esiphansi bese uhlikihla kancane kancane i-hydroxyethyl cellulose ibe yisisombululo ngokulinganayo.

3. Qhubeka uvuselela kuze kube yilapho zonke izinhlayiya zimanzi.

4. Bese ufaka izinto ezilwa ne-antifungal, izithasiselo ze-alkaline ezifana nombala, izinsiza zokuhlakaza, amanzi e-ammonia.

5. Hlanganisa kuze kube yilapho yonke i-hydroxyethyl cellulose incibilika ngokuphelele (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokufaka ezinye izingxenye kufomula, bese ugaya kuze kube umkhiqizo oqediwe.

Ifakwe utshwala be-mama

Le ndlela iwukuqala ngokulungiselela utshwala obungumama obunomthamo ophezulu, bese ulufaka kupende we-latex. Inzuzo yale ndlela ukuthi inokuguquguquka okukhulu futhi ingafakwa ngqo kupende oqediwe, kodwa kufanele igcinwe kahle. Izinyathelo zifana nezinyathelo 1-4 endleleni 1, ngaphandle kokuthi ukuxuba okuphezulu akudingeki ukuze kuncibilike ngokuphelele kube yisisombululo esiqinile.

Sebenzisa ukuqaphela
Njengoba i-hydroxyethyl cellulose ephathwe phezulu iyi-powder noma i-cellulose eqinile, kulula ukuyiphatha nokuyincibilikisa emanzini uma nje kuphawulwe izinto ezilandelayo.

1. Ngaphambi nangemva kokufaka i-hydroxyethyl cellulose, kumele ivuselelwe njalo kuze kube yilapho ikhambi selicacile futhi licacile ngokuphelele.

2. Kumele ihlungwe kancane kancane emgqonyeni wokuxuba. Ungafaki ngqo i-hydroxyethyl cellulose eyenziwe yaba yizigaxa noma amabhola emgqonyeni wokuxuba ngobuningi obukhulu noma ngokuqondile.

3. Izinga lokushisa lamanzi kanye nenani le-pH lamanzi kunobudlelwano obubalulekile nokuncibilika kwe-hydroxyethyl cellulose, ngakho-ke kufanele kunakwe ngokukhethekile.

4. Ungalokothi ufake ezinye izinto ze-alkaline engxubeni ngaphambi kokuba i-hydroxyethyl cellulose powder ifudumale ngamanzi. Ukuphakamisa inani le-PH ngemva kokufudumala kuyasiza ekuncibilikeni.

5. Uma kungenzeka, engeza i-antifungal agent ngokushesha okukhulu.

6. Uma usebenzisa i-hydroxyethyl cellulose ene-viscosity ephezulu, ukugcwala kotshwala obungumama akufanele kube ngaphezu kuka-2.5-3%, ngaphandle kwalokho utshwala obungumama kunzima ukusebenza. I-hydroxyethyl cellulose eselashwe ngemva kokwelashwa ngokuvamile akulula ukwenza amaqhubu noma ama-sphere, futhi ngeke yakhe ama-colloid ayindilinga angancibiliki ngemva kokufaka amanzi.