Ukuthuthukiswa kwe-Rheological Thickener
Ukuthuthukiswa kwe-rheological thickeners kube yingqopha-mlando ebalulekile emlandweni wesayensi yezinto zokwakha kanye nobunjiniyela. I-Rheological thickeners izinto ezingakhulisa i-viscosity kanye/noma zilawule izakhiwo zokugeleza koketshezi, ukumiswa, nama-emulsion.
I-thickener yokuqala ye-rheological yatholakala ngengozi ngekhulu le-19, lapho ingxube yamanzi nofulawa iyekwa ime isikhathi esithile, okuholela entweni ewugqinsi, efana nejeli. Le ngxube kamuva yatholakala iwukulengiswa okulula kwezinhlayiya zikafulawa emanzini, okwakungase kusetshenziswe njengesithako ekusetshenzisweni okuhlukahlukene.
Ekuqaleni kwekhulu lama-20, kwatholakala ukuthi ezinye izinto zinamandla okujiya, njengesitashi, izinsini nobumba. Lezi zinto zazisetshenziswa njengama-thickeners e-rheological ezinhlobonhlobo zezicelo, kusukela ekudleni nezimonyo kuya kupende kanye noketshezi lokumba.
Kodwa-ke, lezi zingqimba zemvelo zinemikhawulo, njengokusebenza okuguquguqukayo, ukuzwela ezimweni zokucubungula, kanye nokungcoliswa okungenzeka kwe-microbiological. Lokhu kwaholela ekuthuthukisweni kokuqina kokwenziwa kwe-rheological, njengama-cellulose ethers, ama-polymers e-acrylic, nama-polyurethanes.
Ama-cellulose ethers, afana ne-sodium carboxymethyl cellulose (CMC), i-methyl cellulose (MC), kanye ne-hydroxypropyl cellulose (HPC), asephenduke enye yezinto ezisetshenziswa kakhulu ze-rheological thickeners ekusetshenzisweni okuhlukahlukene, ngenxa yezakhiwo zabo eziyingqayizivele, njengokuncibilika kwamanzi, Ukuzinza kwe-pH, ukuzwela kwamandla e-ionic, nekhono lokwenza ifilimu.
Ukuthuthukiswa kwezingqimba ze-rheological zokwenziwa kuye kwavumela ukwakhiwa kwemikhiqizo ngokusebenza okungaguquki, ukuqina okuthuthukisiwe, nokusebenza okuthuthukisiwe. Ngesidingo esikhulayo sezinto ezisebenza kahle kakhulu, ukuthuthukiswa kwezingqimba ezintsha ze-rheological kulindeleke ukuthi kuqhubeke, kuqhutshwa intuthuko kwezesayensi yezinto zokwakha, ikhemistri, kanye nobunjiniyela.
Isikhathi sokuthumela: Mar-21-2023