I-Hydroxyethyl cellulose

I-Hydroxyethyl cellulose (HEC) sisiqina esimhlophe okanye esikhanyayo esityheli, esingenavumba, esingenatyhefu okanye esinomgubo esilungiselelwe ngokuthambisa i-alkaline cellulose kunye ne-ethylene oxide (okanye i-chlorohydrin). Ii-ether ze-cellulose ezinyibilikayo ezingezizo i-ionic. Ngenxa yokuba i-HEC ineempawu ezilungileyo zokutyeba, ukumisa, ukusasaza, ukuhlanganisa, ukwenza ifilimu, ukukhusela umswakama kunye nokubonelela ngee-colloids ezikhuselayo, isetyenziswa kakhulu ekuhloleni ioyile, ukugquma, ukwakha, amayeza nokutya, amalaphu, ukwenza iphepha kunye nee-polymers. Ukudibanisa nezinye iindawo. I-Hydroxyethyl cellulose ayizinzanga kubushushu obuqhelekileyo kunye noxinzelelo, ithintela ukufuma, ubushushu, kunye nobushushu obuphezulu, kwaye inokunyibilika kwetyuwa okuhle kakhulu kwii-dielectrics. Isisombululo sayo samanzi sivunyelwe ukuba siqulathe amazinga aphezulu eetyuwa kwaye sizinzile.

Imiyalelo
Joyina ngokuthe ngqo kwimveliso

1. Yongeza amanzi acocekileyo kwibhakethi enkulu exhotyiswe nge-blender ekwaziyo ukucheba kakhulu.

2. Qala ngokuzivuselela rhoqo ngesantya esiphantsi uze ucofe kancinci i-hydroxyethyl cellulose kwisisombululo ngokulinganayo.

3. Qhubeka uvuselela ude zonke iinxalenye zimanziswe.

4. Emva koko yongeza izinto ezibulala iintsholongwane, izongezo ze-alkaline ezifana neepigment, izixhobo zokusasaza, amanzi e-ammonia.

5. Xuba de yonke i-hydroxyethyl cellulose ichitheke ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokongeza ezinye izinto kwifomyula, uze uyigaye ide igqitywe imveliso.

Ixhotyiswe ngotywala be-mama

Le ndlela kukulungiselela kuqala utywala obungumama obunomlinganiselo ophezulu, uze ubongeze kwipeyinti yelatex. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti egqityiweyo, kodwa kufuneka igcinwe kakuhle. Amanyathelo afana namanyathelo 1-4 kwindlela 1, ngaphandle kokuba ukuxubha okuphezulu akufuneki ukuze kunyibilike ngokupheleleyo kwisisombululo esiqinileyo.

Sebenzisa isilumkiso
Ekubeni i-hydroxyethyl cellulose ecociweyo phezu kwayo ingumgubo okanye i-cellulose solid, kulula ukuyiphatha nokuyinyibilikisa emanzini logama nje kuqatshelwe ezi zinto zilandelayo.

1. Ngaphambi nasemva kokufaka i-hydroxyethyl cellulose, kufuneka ixutywe rhoqo de isisombululo sibe sobala ngokupheleleyo kwaye sicace gca.

2. Kufuneka ihluzwe kancinci kwibhareli yokuxuba. Musa ukufaka ngqo i-hydroxyethyl cellulose eyenziwe yaba ziingceba okanye iibhola kwibhareli yokuxuba ngobuninzi okanye ngokuthe ngqo.

3. Ubushushu bamanzi kunye nexabiso le-pH yamanzi zinobudlelwane obubalulekileyo nokunyibilika kwe-hydroxyethyl cellulose, ngoko ke kufuneka kunikwe ingqalelo ekhethekileyo kuyo.

4. Ungaze wongeze ezinye izinto ze-alkaline kumxube ngaphambi kokuba umgubo we-hydroxyethyl cellulose ufudumale ngamanzi. Ukunyusa ixabiso le-PH emva kokufudumala kuyanceda ekunyibilikeni.

5. Kangangoko kunokwenzeka, yongeza i-antifungal agent kwangoko.

6. Xa usebenzisa i-hydroxyethyl cellulose ene-viscosity ephezulu, uxinzelelo lotywala oluvela kumama alufanele lube ngaphezulu kwe-2.5-3%, kungenjalo utywala oluvela kumama kunzima ukulusebenzisa. I-hydroxyethyl cellulose emva kokunyangwa ngokubanzi akulula ukuyenza amaqhuma okanye iisphere, kwaye ayiyi kwenza ii-colloids ezingqukuva ezinganyibilikiyo emva kokongeza amanzi.