Loluphi uhlobo lwe-thickener olusetyenziswa kwipeyinti?

I-thickener esetyenziswa kwipeyinti idla ngokuba yinto eyonyusa ubungqindilili okanye ubuninzi bepeyinti ngaphandle kokuchaphazela ezinye iimpawu zayo ezifana nombala okanye ixesha lokomisa. Enye yezona ntlobo zixhaphakileyo ze-thickener esetyenziswa kwipeyinti yi-rheology modifier. Ezi modifiers zisebenza ngokutshintsha indlela ipeyinti ehamba ngayo, ziyenze ibe nkulu kwaye izinzile.

Kukho iintlobo ezahlukeneyo ze-rheology modifiers ezisetyenziswa kwi-paint formulations, nganye ineempawu zayo kunye neenzuzo zayo ezikhethekileyo. Ezinye ze-rheology modifiers ezisetyenziswa kakhulu ziquka:

Izinto ezisuka kwiCellulose:
I-Hydroxyethyl cellulose (HEC)
I-Hydroxypropyl cellulose (HPC)
I-Methyl cellulose (MC)
I-Ethyl hydroxyethyl cellulose (EHEC)
Izinto zokuThintsa eziNxulumeneyo:
I-urethane e-ethoxylated eguqulwe nge-hydrophobically (HEUR)
I-emulsion ye-alkali-soluble eguqulwe ngamanzi (HASE)
I-hydroxyethyl cellulose eguqulwe ngamanzi (HMHEC)
Izinto eziphuma kwiPolyacrylic Acid:
ICarbomer
Ii-copolymers ze-acrylic acid
Udongwe lweBentonite:
Udongwe lweBentonite luyinto yendalo etyebisayo ephuma kuthuthu lwentaba-mlilo. Lusebenza ngokwenza uthungelwano lweesuntswana ezibamba iimolekyuli zamanzi, ngaloo ndlela luyenza ibe lukhuni ipeyinti.
Ijeli yeSilica:
Ijeli yeSilica sisithambisi sokwenziwa esisebenza ngokufunxa nokubamba ulwelo ngaphakathi kwesakhiwo saso esineembobo, ngaloo ndlela siyenza ibe nkulu ipeyinti.
Izinto zokuThintsa iPolyurethane:
Izithambisi zePolyurethane ziipolymers ezenziwe ngokwenziwa ezinokulungiswa ukuze zibonelele ngeempawu ezithile ze-rheological kwipeyinti.
I-Xanthan Gum:
I-Xanthan gum sisithambisi sendalo esiphuma ekuvuthweni kweeswekile. Yenza ukuqina okufana nejeli xa ixutywe namanzi, nto leyo eyenza ifaneleke ukujiya kwepeyinti.
Ezi rheology modifiers zihlala zongezwa kwifomyula yepeyinti ngexesha lenkqubo yokwenziwa ngobuninzi obuchanekileyo ukuze kufezekiswe i-viscosity kunye neempawu zokuhamba ezifunekayo. Ukukhethwa kwe-thickener kuxhomekeke kwizinto ezahlukeneyo ezifana nohlobo lwepeyinti (umz., esekelwe emanzini okanye i-solvent), i-viscosity oyifunayo, indlela yokufaka, kunye nokuqwalaselwa kwendalo.

Ukongeza ekwenzeni ipeyinti ibe nkulu, izixhobo zokulungisa i-rheology zikwadlala indima ebalulekileyo ekuthinteleni ukugoba, ukuphucula ukuxubha, ukuphucula ukulingana, kunye nokulawula ukuchitheka ngexesha lokufaka. Ukukhetha isixhobo sokwandisa ipeyinti kubalulekile ekumiseleni ukusebenza kwayo yonke kunye neempawu zokusetyenziswa kwepeyinti.