Ukwethulwa okuyisisekelo kwe-HEC ne-HPMC

I-HEC (HYDROXYETHY celtuleose) ne-HPMC (Hydroxypropyl Methylcellulose) iyizinto ezimbili ezisetshenziswayo ezisetshenziswayo ezisetshenziswayo, ezisetshenziswa kabanzi kwizimboni eziningi. Lezi zinto zokwenziwa ziye zaba yizinto ezibalulekile ezisebenzayo ngenxa yezakhiwo zazo ezihlukile nezemakhemikhali.

1. I-HEC (HYDROXYETHY Cellulose)

1.1 Isakhiwo esiyisisekelo nezakhiwo
I-HEC iyi-polymer engenakuqhathaniswa yamanzi engenawona ethosiwe etholwe ngokuguqulwa kwamakhemikhali we-cellulose yemvelo. Isakhiwo saso esiyisisekelo ukwethulwa kwe-Hydroxyethyl substitunts ku-β-d-glucose skeleton of cellulose. Ngenxa ye-hydrophicity yeqembu le-hydroxyethyl ngesakhiwo salo, i-HEC ine-soubelity enhle kanye nezakhiwo eziqina emanzini.

I-HEC ikhombisa ukunamathela okuhle, ukwakha ifilimu nokugcona, futhi kubuye kube ne-acid- kanye ne-alkali-yokungamelana ne-biocomp ukubethelwa. Lezi zakhiwo zikwenza kube nzima kakhulu, izitebhisi kanye ne-ejenti eyakha amafilimu ezinhlelweni zamashele. Ngaphezu kwalokho, isixazululo se-Hec sine-Thixotropy enhle, engakhombisa ukubonakala okuphezulu ngaphansi kwamandla aphansi we-shear, futhi i-viscoty yehle ngokushesha ngaphansi kwamandla aphezulu we-shear. Lesi sici senza kube yinani elibalulekile lesicelo ekuphathweni okuhlukahlukene koketshezi.

Inqubo yokulungiselela engu-1.2
I-HEC ilungiselelwe ikakhulukazi ukusabela kokusheshisa kwe-cellulose yemvelo. Izinto ezisetshenziswayo ezisetshenziswayo zifaka imithombo yeselula enjengokotini nezinkuni, ezisabele nge-ethylene oxide ngemuva kokuthola i-hydroxyethyl cellulose. Ngeyo yonke inqubo yokuphendula, ukuphathwa kwezimo zokuphendula (njengokushisa, ivelu ye-PH kanye nesikhathi) kunethonya elibalulekile ngezinga lokufaka esikhundleni, i-solubity kanye nokubona umkhiqizo wokugcina.

1.3 Izinkambu zohlelo lokusebenza
I-HEC isetshenziswa kabanzi ezintweni zokwakha, izimbobo, amakhemikhali nsuku zonke, umuthi nokudla. Ezintweni zokwakha, i-HEC isetshenziswa kabanzi ku-cement data kanye ne-gypsum njengomuntu osebenza ngempumelelo kanye ne-stabilizer ukuthuthukisa ukusebenza kwayo kanye nezakhiwo ezilwa nokulwa. Embonini yezambane, i-HEC ingahle isetshenziswe njengomugqa omkhulu kanye nokushintshwa kwe-Rheology kwezingubo ezisuselwa emanzini ukuthuthukisa ukunamathela nokubusheleleka kwezimbozo. Kumakhemikhali nsuku zonke afana ne-shampoo ne-sanitizer yesandla, i-hec isetshenziswa njengomuntu omkhulu kanye nomswakama ukunikeza umkhiqizo umuzwa omuhle nokuqina. Ngaphezu kwalokho, kwizimboni zezemithi nezokudla, i-HEC isetshenziswa njenge-binder yamathebulethi, ifilimu yangaphambili yamaphilisi, kanye nesikhumuli kanye ne-stabilizer yokudla ngenxa yokuthambisa kwayo okuhle kanye nobuthi bayo obuphansi.

2. I-HPMC (HYDROXYPROPYL Methylcellulose)

2.1 Isakhiwo esiyisisekelo nezakhiwo
I-HPMC iyi-ether engeyona eye-celtulose ether etholwe ukwethula i-hydroxypropyl kanye namaqembu we-methoxy emthanjeni we-cellulose. Ifana ne-HEC, i-HPMC ine-soubelity enhle yamanzi, ukuqina, amafilimu okwakha izakhiwo kanye ne-biocomitity. Ngenxa yamaqembu we-methoxy ne-hpdroxypropyl esakhiweni sawo, i-HPMC ayigcini nje ngokuba ne-soubity enhle emanzini, kodwa futhi ibonisa umsebenzi oqinile wendawo kanye nezindawo zokumiswa.

I-viscosity yekhambi le-HPMC lithinteka kakhulu izinga lokushisa. Ngaphakathi kwebanga elithile lokushisa, i-viscosity yesisombululo se-HPMC iyancipha ngokuthuthuka kokushisa. Ngaphezu kwalokho, i-HPMC nayo inezakhiwo ezinhle zejeli. Lapho izinga lokushisa lesixazululo lidlula inani elithile, kuzokwakheka ijeli. Le mpahla inenani elikhethekile lesicelo emikhakheni yokudla nomuthi.

Inqubo yokulungiselela 2.2
Ukulungiswa kwe-HPMC kufana ne-HEC, futhi kwenziwa futhi ngokusabela kokuthenjwa kwe-cellulose. Imvamisa, i-cellulose iphendula nge-propelene oxide kanye ne-methyl chloride ngaphansi kwezimo ze-alkali ukwethula ama-hydroxypropylyl kanye namaqembu we-metholly, ngokulandelana. Izici ze-HPMC (ezinjengokusobala, ukuSolubelity kanye nokushisa kwejeli) kungalawulwa ngokunembile ngokulungisa izinga lokufakwa esikhundleni kanye nezimo zokuphendula.

2.3 Izinkambu zohlelo lokusebenza
I-HPMC inezinhlobonhlobo zezicelo emikhakheni yokwakha, umuthi, ukudla namakhemikhali nsuku zonke. Ezintweni zokwakha, i-HPMC isetshenziswa kabanzi kumikhiqizo kasimende kasimende kanye ne-gypsum njengomkhuhlane, umgcini wamanzi kanye ne-binder ukwenza ngcono ukusebenza kokwakha nokuqina kwezinto ezibonakalayo. Emkhakheni wezokwelapha, i-HPMC isetshenziswa njenge-ejenti yokukhishwa okulawulwayo, okunamathelayo kanye ne-capsule coating impahla yamathebulethi, angalawula ngempumelelo isilinganiso sokukhishwa kwezidakamizwa futhi athuthukise ukuqina kwezidakamizwa. Embonini yokudla, i-HPMC isetshenziswa kabanzi njengomuntu omkhulu kanye ne-emulsifier ezimpahleni ezibhakiwe, imikhiqizo yobisi kanye namakhalekhukhwini ukuthuthukisa ukuthungwa nokunambitha kwemikhiqizo. Ngaphezu kwalokho, i-HPMC isetshenziswa kabanzi kumakhemikhali nsuku zonke afana ne-shampoo, i-conditioner, ukuhlanza kobuso, njll., Ukunikeza imikhiqizo emnandi kakhulu kanye nokuthambisa izakhiwo.

Njengama-delivatives amabili abalulekile we-cellulose, i-HEC ne-HPMC idlala indima enkulu kwizimboni eziningi. I-HEC isetshenziswa kabanzi ekwakhiweni, embonweni, amakhemikhali nsuku zonke kanye nemithi ngenxa yokuqina kwayo okuhle, ukwakha amafilimu nokuqina. Ngakolunye uhlangothi, i-HPMC idlala indima ebalulekile ekwakhiweni, emithini nasezimbonini zokudla ngenxa yezakhiwo zayo ezihlukile ze-golling kanye nezinkundla zohlelo lokusebenza oluningi. Ngokuthuthuka kobuchwepheshe, inqubo yokulungiselela kanye nezinkundla zohlelo lokusebenza zalezi zinto ezimbili kuzoqhubeka ukwandisa, ukuletha amathuba amaningi okuthuthukiswa kwezimboni ezihlobene.