I-EHEC kunye ne-MEHEC

I-EHEC (i-ethyl hydroxyethyl cellulose) kunye ne-MEHEC (i-methyl ethyl hydroxyethyl cellulose) ziindidi ezimbini ezibalulekileyo ze-cellulose ethers ezisetyenziswa ngokuqhelekileyo kumashishini ahlukeneyo, kubandakanywa imboni yepeyinti kunye neengubo. Masingene nzulu kwinto nganye:

1. I-EHEC (Ethyl Hydroxyethyl Cellulose):
   • Ubume beMichiza: I-EHEC ithathwa kwi-cellulose ngokuzisa zombini amaqela e-ethyl kunye ne-hydroxyethyl kwi-cellulose backbone.
   • Iipropati kunye neMisebenzi:
     • I-EHEC iyanyibilika emanzini kwaye yenza izisombululo ezicacileyo, ezibonakalayo.
     • Isebenza njenge-thickener kunye ne-rheology modifier kwiipende ezisekelwe emanzini kunye neengubo, ukulawula i-viscosity kunye nokuphucula iimpawu zesicelo.
     • I-EHEC inika i-pseudoplastic okanye i-shear-thinning behavior to paint formulations, oku kuthetha ukuba i-viscosity iyancipha ngokunyuka kwesantya sokucheba, iququzelele ukusetyenziswa okulula kunye nokuxubha okugudileyo.
   • Usetyenziso:
     • I-EHEC isetyenziswa ngokubanzi kwiipeyinti zangaphakathi nangaphandle, ii-primers, kunye neengubo zokufezekisa ukuhambelana okufunekayo, ukuhamba, kunye neempawu zokulinganisa.
     • Isebenza ngokukodwa ekuqulunqweni apho i-viscosity ephezulu kumazinga aphantsi e-chear iyadingeka ukuxhathisa i-sag kunye nokuphuculwa kokwakhiwa kwefilimu.
2. I-MEHEC (iMethyl Ethyl Hydroxyethyl Cellulose):
   • Isakhiwo seMichiza: I-MEHEC i-ether ye-cellulose eguqulwayo ene-methyl, ethyl, kunye ne-hydroxyethyl substituents kwi-cellulose backbone.
   • Iipropati kunye neMisebenzi:
     • I-MEHEC ibonisa ukunyibilika okufanayo kunye neempawu ze-rheological kwi-EHEC kodwa kunye nolunye umahluko ekusebenzeni.
     • Ibonelela ngezakhono eziphuculweyo zokugcina amanzi xa kuthelekiswa ne-EHEC, iyenza ilungele ukwakheka apho ixesha elivulekileyo elongeziweyo okanye uphuhliso lombala oluphuculweyo lufunwayo.
     • I-MEHEC ibonelela ngokuphucuka kokuqina kokuqina kunye nokuzinza kuluhlu olubanzi lwe-pH kunye neemeko zobushushu.
   • Usetyenziso:
     • I-MEHEC ifumana isicelo kwiipeyinti ezisekelwe emanzini, iingubo, kunye nezinto zokwakha apho ukugcinwa kwamanzi okuphuculweyo, ukuqina, kunye nokulawulwa kwe-rheological kuyadingeka.
     • Ihlala isetyenziselwa ukwakhiwa kweepeyinti zokuhombisa, iingubo zokwaleka, kunye nokugqitywa okukhethekileyo apho ixesha lokusebenza elongezelelweyo kunye neempawu eziphuculweyo zokuhamba zibalulekile.

Zombini i-EHEC kunye ne-MEHEC zi-ethers ze-cellulose eziguquguqukayo ezinikezela ukuguquguquka kwe-formulators ekufezekiseni iimpawu zokusebenza ezifunwayo kwiipeyinti ezisekelwe emanzini kunye neengubo. Ukuhambelana kwazo kunye nezinye izongezo, ukulula ukufakwa kwimiqulu, kunye nokukwazi ukuphucula iimpawu eziphambili ezifana nokulawulwa kwe-viscosity, ukugcinwa kwamanzi, kunye neempawu zesicelo kubenza ukuba babe ngamacandelo abalulekileyo ekuqulunqweni kweengubo zokuhlobisa eziphezulu.