I-Hydroxyethyl cellulose ne-ethyl cellulose

1. Imiqondo eyisisekelo

I-Hydroxyyethyl cellulose (HEC): I-Hydroxyyethyl cellulose (HEC) iyingxenye yemvelo ye-polymer, evame ukutholakala ngokuthezeka kwe-cellulose. Iqembu le-hydroxyethyl (-ch2chchoh) lingeniswa ku-molecule yalo, lilinikeza amandla amahle we-solubity, ukuqina, ukugada kanye nomsebenzi webanga elingaphezulu. I-HEC isetshenziswa kabanzi emikhakheni eminingi efana ne-coatings, izimonyo, okokuhlanza, ukudla, umuthi kanye nezimboni zokwakha.

I-Ethyl cellulose (EC): I-Ethyl Cellulose (EC) nayo iyi-ether compound ethathwe ku-cellulose yemvelo. Ngokungafani ne-HEC, iqembu le-ethyl (-c2hh5) lingeniswa ku-molecule ye-EC esikhundleni se-hydroxyethyl gerop. Ine-solubility empofu futhi ivame ukuncibilika ku-solvents ye-organic kepha insoluble emanzini. I-EC isetshenziswa kakhulu ezimbonini ezinjengezimboni ezinjengemithi, ukumboza kanye nokunamathela, futhi kunokuqina, ukuqina kanye nemisebenzi eyakha ifilimu.

2. Umehluko ngesakhiwo samakhemikhali kanye ne-solubility

Isakhiwo samakhemikhali:
Ukwakheka kwamangqamuzana kwe-HEC kwakhiwa ngokushintsha ama-molecule we-cellulose nge-hydroxyethyl (CH2CH2OH) Amaqembu Afaka esikhundleni. Lokhu kuguqulwa kwenza i-hec hydrophilic futhi ingancibilika kahle emanzini.
Ku-EC Molecule, amaqembu e-ETHYL (C2H5) abuyisela amanye amaqembu e-hydroxyl e-cellulose, okwenza ama-molecule awo hydrophobic futhi ancibilike kabi emanzini, avame ukuncibilika kuma-solvents ezi-organic.
I-Solubity:

I-HEC incibilika kalula emanzini, ikakhulukazi emanzini afudumele, futhi i-solubility yayo ihlobene nesisindo samangqamuzana kanye nezinga le-hydroxyethylation. Ngenxa ye-solubility yayo yamanzi, i-HEC ivame ukusetshenziswa ezimweni lapho kudingeka khona i-soubelility yamanzi, njengezindwangu, izinhlanzi, njll.
I-EC ine-soubity empofu emanzini, kepha ine-soubelity enhle kuma-solvents ezi-organic anjenge-sol sol sollents kanye ne-ketone solove. Ngakho-ke, i-EC ivame ukusetshenziswa ezindaweni ezi-organic solvent njenge-persener noma ifilimu yangaphambili.

3. Izinkambu zohlelo lokusebenza

Ukusetshenziswa kwe-HEC:
I-Coatings: I-HEC isetshenziswa njenge-reathener kanye ne-rheology modifier yezigqoko ezisuselwa emanzini, ezingathuthukisa uketshezi, ukumiswa kanye nezindawo zokulwa nezatho zemvula.
Izimonyo: Embonini yezimonyo, i-HEC ivame ukusetshenziswa emikhiqizweni efana ne-lotion, ama-shampoos, kanye nokhilimu wesikhumba njenge-mkhulu, emulsifier, kanye ne-moisturizer.
Umuthi: I-HEC nayo isetshenziswa kumalungiselelo okulawulwa kwezidakamizwa alawulwa njenge-realener kanye ne-ejenti ye-gelling ukusiza ukukhululwa kancane kwezidakamizwa.
Ukwakhiwa: Embonini yezokwakha, i-HEC isetshenziswa njengesikhulu sokwenza usimende noma ngodaka ukuze sithuthukise ukusebenza kokwakha, njengokunweba isikhathi esivulekile kanye nokwenza ngcono ukusebenza.

Ukusetshenziswa kwe-EC:
Izemithi: I-Ethyl cellulose ivame ukusetshenziswa ensimini yezemithi, ikakhulukazi kumalungiselelo wezidakamizwa alawulwa, njengothwala izidakamizwa, ukuhlanganiswa kwefilimu, njll.
I-Coatings kanye nama-adhesives: Embonini yezambane, e-EC ivame ukusetshenziswa njengomuntu omkhulu kanye nefilimu yangaphambili. Kungakhuphula ubukhulu bokuhlanganiswa kanye nokuthuthukisa ukumelana nesimo sezulu.
Ukudla: EC kubuye kusetshenziswe enkundleni yokudla, ikakhulukazi njenge-smighter kanye ne-stabilizer, futhi kusetshenziswa ekudleni okufana nejelly noswidi.
I-COSMETICS: EC isetshenziswa kwizimonyo ukukhulisa i-viscosity kanye nokuqina kwama-emulsions, futhi nakho kungasetshenziswa njengesithako sokunakekelwa kwesikhumba.

4. Ukuqhathanisa ukusebenza

Ukuqina:
Bobabili i-HEC ne-EC babe nemiphumela emihle yokuqina, kepha i-hec ikhombisa ukuqina okunamandla emanzini, ikakhulukazi amasistimu anamanzi. I-EC ikhombisa imiphumela engcono yokuqina ikakhulukazi kuma-organic solvents ngenxa ye-hydrophophobicity yayo.

I-Solubity nokuqina:
I-HEC inamanzi amahle we-solubility kanye nokuqina okuphezulu kwe-solubity, ngakho-ke kusetshenziswa kabanzi ezinhlelweni zama-aqueve. I-EC ine-solubility empofu futhi isetshenziswa kakhulu ku-organic solvents noma amasistimu anama-anhydrous.

Rheology:
Izakhiwo ezi-Rheological ze-HEC Solutions ziyahlukahluka kakhulu ekugxileni okuhlukile, okuvame ukubonisa indlela ejwayelekile yokuziphatha uketshezi olungeyena i-New-Newtonian. EC imvamisa ine-Rheology engapheli, ikakhulukazi kuma-solvents ezi-organic.

I-Hydroxyyethyl cellulose (I-ETHYL Cellulose (EC) iyizinto ezimbili ezijwayelekile ze-cellulose dellulose, ngalinye linezakhiwo ezihlukile zomzimba nangamakhemikhali kanye nezinhlobonhlobo zezicelo. I-HEC's WAMEL RAMBLILE NEZIMALI ZOKUGCINA ZENZA KULULA KULULA Ezinhlelweni ezisuselwa emanzini, njengezembatho, izimonyo kanye nemithi. I-EC ivame ukusetshenziswa ezinhlelweni ze-organic solvent, ezinjengemithi, ukumboza, ukunamathela, njll. Ukukhetha kwalokhu okubili kufanele kunqunywe ngokususelwa kwizidingo ezithile zohlelo lokusebenza nohlobo lwe-solvent olusetshenzisiwe.