I-Solubity kanye ne-Viscosity ye-HEC Cellulose ekuhlotsheni okususelwa emanzini

Obstract:

Eminyakeni yamuva nje, izimbobo ezisuselwa emanzini zithole ukunakwa okubanzi ngenxa yobungani babo bezemvelo kanye nokuqukethwe okuphansi kwe-organixer compact compact (VOC). I-HydroxyEthylcellulose (HEC) iyi-polymer esetshenziswe amanzi esetshenziswa kabanzi kulezi zinhlaka, esebenza njengomkhulu wokukhulisa ukubonana nokulawula i-Rhelogy.

Yethula:

1.1 ingemuva:

Izigqoko ezisuselwa emanzini ziye zaba yindlela enobungane yemvelo egqoke izigqoko ezisuselwa kwi-solvent zendabuko, ukuxazulula izinkinga ezihlobene nokuphuma kwezinto eziguqukayo kanye nomthelela wezemvelo. I-HydroxyYethylcellulose (HEC) iyinhlangano etholwa yi-cellulose esiyisithako esiyisihluthulelo ekwakheni izigqoko ezisuselwa emanzini futhi zinikeze ukulawulwa kwe-Rheelogy kanye nokuqina.

Izinjongo eziyi-1,2:

Lo mbhalo uhlose ukucacisa izici ze-solubity ka-HEC ezitsheni ezisuselwa emanzini futhi ufunde ithonya lezinto ezahlukahlukene ekubonisweni kwalo. Ukuqonda lezi zici kubalulekile ukwenza kahle ukwakhiwa kwama-coating kanye nokuthola ukusebenza okufunayo.

I-HydroxYethylcellulose (HEC):

2.1 Ukwakheka nokusebenza:

I-HEC ingukutholwa kwe-cellulose etholwe ukusabela kokusheshisa kweselula ne-ethylene oxide. Ukwethulwa kwamaqembu ama-hydroxyethyl ku-cellulose backmbone kunomthelela kumanzi ayo e-solubility futhi kwenze kube yi-polymer ebalulekile ezinhlelweni ezenzelwe amanzi. Isakhiwo se-molefanelar kanye nezakhiwo ze-HEC zizoxoxwa ngokuningiliziwe.

I-Solubity kaHec emanzini:

3.1 Izici ezithinta i-soubity:

I-solubity ye-HEC emanzini ithinteka yizici eziningana, kufaka phakathi izinga lokushisa, ph, kanye nokuhlushwa. Lezi zinto kanye nomthelela wazo kuHec Solubity kuzoxoxwa ngazo, kuhlinzekwe ukuqonda ngezimo ezithanda ukuqondiswa kwe-HEC.

3.2 Umkhawulo we-Solubity:

Ukuqonda imikhawulo engenhla nephansi ye-solubility ye-hec emanzini kubalulekile ekuqaliseni izigqoko ngokusebenza kahle. Lesi sigaba sizokwelulwa osebeni lokuhlushwa lapho i-hec ibonisa ubumbano oluphezulu nemiphumela edlula le mikhawulo.

Ngcono ukubonwa nge-HEC:

4.1 Indima ye-HEC ekuboneni:

I-HEC isetshenziswa njenge-nyowener ezitsheni ezisuselwa emanzini ukusiza ukukhulisa i-viscosity futhi kuthuthukise ukusebenza kwe-bhedo. Lezi zinqubo ezenziwa ngu-Hec zifinyelela ngazo ukulawulwa kwe-viscosity, zigcizelela ukusebenzisana kwazo ngama-molecule wamanzi nezinye izithako ekwakheni.

4.2 Umphumela wokuhluka kwefomula ku-viscosity:

Okuguquguqukayo okuhlukahlukene kokuqamba, okubandakanya ukugxilisa i-HEC, izinga lokushisa, kanye nezinga le-shear, kungathinta kakhulu ukubonwa kwezingubo zokumboza amanzi. Lesi sigaba sizohlaziya umthelela walezi zinto eziguqukayo ekuboneni kwe-HEC-equkethe izimbotshana ukuhlinzeka ngokuqonda okusebenzayo kwamakhambi.

Izicelo namathemba esizayo:

5.1 Izicelo zezimboni:

I-HEC isetshenziswa kabanzi kwizicelo ezahlukahlukene zezimboni ezinjengopende, izinamathiseli kanye nama-sealants. Lesi sigaba sizoqokomisa iminikelo ethile ye-HEC ukumboza amanzi ezinhlamvu zamanzi kulezi zinhlelo zokusebenza futhi uxoxe ngezinzuzo zawo ngaphezulu kwabanye abakhulu.

5.2 Izinkombandlela Zokucwaninga Ezizayo:

Njengoba ukufunwa kwezimbozo ezizinzile futhi eziphakeme kakhulu kuyaqhubeka ukukhula, izinkomba zokucwaninga zesikhathi esizayo emkhakheni wokwakheka okusekwe ku-HEC zizohlolwa. Lokhu kungafaka izinto ezintsha ekuguqulweni kwe-HEC, amasu ekwakheka kwenoveli, nezindlela ezithuthukile zokubonisa.

Ekuphetheni:

Ukufingqa okutholakele okuyinhloko, lesi sigaba sizogqamisa ukubaluleka kokusebenzisa i-soubity kanye nokulawulwa kwe-viscosity ekugqokeni kwamanzi asebenzisa i-HEC. Lo mbhalo uzophetha ngemiphumela esebenzayo yamakhemikhali nezincomo zokuqhubeka nocwaningo ukuthuthukisa ukuqonda kwe-HEC ezinhlelweni zamanzi.