Umehluko phakathi kwebanga le-HPMC yokwakha kanye nebanga lokunakekelwa komuntu siqu kwe-HPMC

I-Hydroxypropyl Methylcellulose (HPMC) iyinhlangano eguquguqukayo enezinhlobonhlobo zezicelo ezimbonini ezahlukahlukene kufaka phakathi ukwakhiwa, ukudla nokunakekelwa komuntu siqu. Emkhakheni wezokwakha, i-HPMC ivame ukusetshenziswa njengesikhulu, i-binder kanye ne-emulsifier emikhiqizweni esekwe kuthusi. Embonini yezokunakekelwa komuntu siqu, i-HPMC isetshenziswa njengesithako sezimonyo eziningi ngenxa yezakhiwo zayo ezinhle kakhulu zefilimu nokwakha ama-gelling.

Kodwa-ke, akuyona yonke imikhiqizo ye-HPMC eyenziwe ilingana. Ngokuya ngenqubo yokukhiqiza kanye namazinga ekhwalithi, i-HPMC ingahlukaniswa ngamabanga ahlukene: Ibanga lokwakha kanye nebanga lokunakekelwa komuntu. Kulesi sihloko, sizoxoxa ngomehluko phakathi kwalawa mabanga amabili e-HPMC.

1. Inqubo yokukhiqiza:

Inqubo yokukhiqiza yokwakha kanye nebanga lokunakekelwa komuntu siqu i-HPMC iqala ngokukhishwa kwe-cellulose kusuka ku-solip pulp noma okotini. Lapho i-cellulose ikhishwe, iyaqhubeka futhi ukukhiqiza i-HPMC. Kodwa-ke, umehluko phakathi kwalawa mabanga amabili ulele ngezinga lokuhlanzwa kanye nokusetshenziswa kwezithasiselo.

Ibanga le-HPMC yokwakheka livame ukukhiqizwa kusetshenziswa izinqubo zokukhiqiza ezilula nezingabizi ezibandakanya ukuhlanzwa okuncane. Lolu hlobo lwe-HPMC lusetshenziswa ikakhulukazi emikhiqizweni yokwakha lapho izidingo zokuhlanza ziphakeme.

Ngakolunye uhlangothi, ukunakekelwa kwebanga le-HPMC, ngakolunye uhlangothi, kuthola inqubo eqinile yokuhlanza ukuqinisekisa ubumsulwa obuphezulu. I-HPMC yokunakekelwa komuntu siqu ye-HPMC ihlolwe ngokujwayelekile ngezinsimbi ezisindayo, ama-microorganisms, nokunye ukungcola ukuze ahlangabezane nezidingo eziqinile zokuphepha kanye nezidingo zekhwalithi yomkhakha wezokunakekelwa komuntu siqu.

2. Ukuhlanzeka kanye nezindinganiso zekhwalithi:

Ibanga le-HPMC yokwakha i-HPMC linokuhlanzeka okuphansi kanye namazinga ekhwalithi kune-HPMC yokunakekelwa komuntu siqu ye-HPMC. I-Construction-grade HPMC imvamisa isetshenziswa emikhiqizweni lapho ubumsulwa bubaluleke kakhulu, njengemikhiqizo esekwe ku-cleent, imikhiqizo ye-gypsum, kanye nezinamathela. Le mikhiqizo ayilungele ukusetshenziswa ngabantu, ngakho-ke amazinga aphansi okuhlanza aphansi ayamukeleka.

Ngakolunye uhlangothi, ukunakekelwa kwebanga le-HPMC, kuncike ekuhlanzeni okuqinile kanye namazinga ekhwalithi. Imikhiqizo yokunakekelwa komuntu siqu, efana nama-shampoos, ama-lotion kanye nokhilimu, zenzelwe ukusetshenziselwa isikhumba noma ezimweni ezithile futhi, kwezinye izikhathi, zithathwe ngumzimba. Ngakho-ke, ubumsulwa bezithako ezisetshenziswe kule mikhiqizo bubaluleke kakhulu ukuvikela noma imiphi imiphumela emibi empilweni yomsebenzisi.

3. Ukuvunywa kokulawula:

I-Construction-grade HPMC imvamisa ayidingi imvume ebanzi yokulawula ngoba ayilungele ukusetshenziswa ngabantu. Kodwa-ke, amanye ama-ejensi okulawula angadinga ukuthi abakhiqizi bahlinzeke ngephepha ledatha yokuphepha (SDS) ngemikhiqizo yabo, echaza izingozi ezingaba khona zomkhiqizo kanye nezindlela zokuphepha ezinconyiwe.

Ngokuphambene, i-HPMC yokunakekelwa komuntu siqu i-HPMC idinga imvume ebanzi yokulawula, ngokuya ngezwe nesifunda lapho umkhiqizo uhloselwe khona ukuthengiswa. Ama-ejensi okulawula afana nokudla kwe-US Food and Drug Administration (FDA) adinga abakhiqizi ukwenza izifundo zokuphepha kanye nokusebenza kahle ngaphambi kokuvuma imikhiqizo yabo yokuzinakekela ukuze bathengiswe.

4. Isicelo:

Ibanga le-HPMC yokwakha lilungele izinhlobo eziningi zezicelo embonini yezokwakha. Isetshenziswa kakhulu njenge-gentmer kanye ne-ejenti yokugcina amanzi emikhiqizweni esekwe kuthusi efana nodaka, ama-grouts, nokhonkolo. I-HPMC ibuye isebenze njenge-binder enhle kakhulu ne-emulsifier emikhiqizweni ye-gypsum efana namakhompiyutha ahlanganayo kanye nama-drywall phedi.

Ngakolunye uhlangothi, i-HPMC yokunakekelwa komuntu siqu ye-HPMC isetshenziswa ikakhulukazi njengezithako zokuhlaziywa kwezimonyo, njengokunakekelwa kwezinwele, ukunakekelwa kwesikhumba kanye nemikhiqizo yokunakekelwa komlomo. Kuyifilimu enhle kakhulu yangaphambilini ne-persener, kwakha ama-gels nama-emulsions azinzile. I-HPMC nayo isetshenziswa njenge-enhancer yokucwaswa ukuhlinzeka ngokubushelelezi, ama-silky azwelana namafomula wokunakekelwa komuntu.

Umehluko phakathi kokukhiwa kwebanga lezokwakha nebanga lokunakekelwa komuntu siqu-ebangeni le-HPMC kuyindlela yokuhlanzwa, amazinga wekhwalithi, ukuvunywa kokulawula kanye nesicelo. Ibanga le-HPMC yokwakha lilungele imikhiqizo yokusebenzisa okungewona umuntu lapho izidingo zokuhlanza ziphakeme. I-HPMC yokunakekelwa komuntu siqu i-HPMC ilandela ikhwalithi eqinile namazinga okuhlanza ukuze uqinisekise ukuphepha komsebenzisi wokugcina. Kubalulekile ukuqonda umehluko phakathi kwalawa mazinga amabili we-HPMC, njengokusebenzisa izinga elingalungile kungaholela ekusebenzeni kahle kwezempilo noma okumpofu komkhiqizo.