Hydroxyyeryl selile (HEC) ni polymer itari ionic, ikomanga y'amazi yatunganijwe na selile binyuze muri selile binyuze mu guhindura imiti. Ibona ikoreshwa cyane mu nganda zinyuranye kubera imitungo yihariye, nko kwinginga, guhungabana, no gushinga film. Mu porogaramu aho PH ituje ni ngombwa, gusobanukirwa uburyo ahabitwara muburyo butandukanye bwa PH ni ngombwa.
PH ituze rya HHC ryerekeza kubushobozi bwayo bwo gukomeza kuba inyangamugayo, imiterere yuburyo, hamwe nibikorwa hakurya yububiko bwa PH. Uku gushikama ni ingenzi muri porogaramu nk'ibicuruzwa byita ku giti cyabo, imiti, aho bihuriye, n'ibikoresho by'ubwubatsi, aho PH y'ibidukikije bidukikije irashobora gutandukana cyane.
Imiterere:
HEC isanzwe ifata selile hamwe na etylene okiside iyobowe na alkaline. Iyi mikorere iva mu gusimbuza amatsinda ya hydroxyl ya selile ya selile hamwe na hydroxyithyyl (-Och2ch2oh). Urwego rwo gusimbuza (DS) rwerekana impuzandengo yitsinda rya hydroxyerthyl espeng kuri anhydroblucose igice cya selile.
Umutungo:
Gukemurwa: Hec irashonje mumazi kandi ikora neza, ibisubizo bya viscous.
Ibyatsi: Iyerekana imyitwarire ya pseudoplastique cyangwa amafaranga yoroheje, bivuze ko vicosi yayo igabanuka munsi yo guhagarika umutima. Uyu mutungo utuma ari ingirakamaro mubisabwa aho urujya ari ngombwa, nkamashusho namashusho.
Uburinzi: Hec itanga vicosity kubisubizo, kora agaciro nkumukozi wijimye muburyo butandukanye.
Imiterere-ya firime: Irashobora gukora firime zitoroshye kandi ziboneye iyo zumye, zikaba ari nziza muri porogaramu nko kumenza no kurera.
ph ituze rya hec
PH Gukamanuka kwa HEC biterwa nibintu byinshi, harimo imiterere yimiti ya polymer, imikoranire nibidukikije bidukikije, hamwe nibisabwa byose muri formulate.
PH Guhagarara kuri HEC muri PH atandukanye:
1. Acidic Ph:
Muri Acide Ph, HEC muri rusange ihamye ariko irashobora guhura na hydrolysis mugihe kinini mubihe bibi. Ariko, muburyo bufatika, nkibicuruzwa byita kugiti cyawe nibikorwa bya aside, HEC ikomeza guhagarara muburyo busanzwe PH (PH 3 kugeza 6). Hanze ya PH 3, ibyago byo kwiyongera kw'amasura, biganisha ku kugabanuka gahoro gahoro muri vinosity n'imikorere. Ni ngombwa gukurikiranira PH y'ibitera birimo hec no kubihindura nkibikenewe kugirango dukomeze gushikama.
2. Guhindura pH:
Hec yerekana ituze ryiza mubihe bitabogamye PH (PH 6 kugeza 8). Iyi PH irasanzwe muri porogaramu nyinshi, harimo no kwisiga, imiti, n'ibicuruzwa byo murugo. HEC-irimo ibijyanye no gumana ubuyobe zabo, imitungo yo kunyeganyega, hamwe n'imikorere rusange muriyi PH. Ariko, ibintu nkubushyuhe nimbaraga za ionic birashobora guhindura umutekano kandi bigomba gusuzumwa mugihe cyo gutera imbere.
3. Alkaline PH:
HEC ntabwo ihagaze neza mubihe bya alkaline ugereranije na aside ya acide cyangwa itabogamye. Kuri PH ya PH (hejuru ya PH 8), HEC irashobora gutesha agaciro, bikaviramo kugabanuka kwa virusi no gutakaza imikorere. Alkaline hydrolysis yihuza hagati ya selile inyuma hamwe nitsinda rya hydroxyyerythyl rirashobora kubaho, biganisha ku munyururu kandi bigabanya uburemere bwa molecular. Kubwibyo, muri alkaline nkibikoresho byabitswe cyangwa ibikoresho byubwubatsi, ubundi polymers cyangwa stabilizers birashobora kuguhitamo hejuru ya hec.
Ibintu bigira ingaruka kumutekano wa PH
Ibintu byinshi birashobora guhindura PH umutekano wa HEC:
Urwego rwo gusimbuza (DS): Hec hamwe na DS zisumba rihamye cyane ku buryo bwa Phi ya kabiri kubera gusimbuza amatsinda ya hydroxyl n'amatsinda ya hydroxyerythy, yongera amazi yo kwiyongera no kurwanya hydrolysis.
Ubushyuhe: Ubushyuhe bwo hejuru burashobora kwihutisha reaction, harimo hydrolysis. Kubwibyo, kubungabunga ububiko bukwiye no gutunganya ni ngombwa mu kubungabunga ph umutekano wa PHC - urimo amafirime.
Imbaraga za Ionic: Ubushakashatsi bukabije bwumunyu cyangwa izindi tions muri formulation birashobora kugira ingaruka kumutekano wa hec ugira ingaruka ku kuntu kwikejuta no gukorana na molekile y'amazi. Imbaraga za Ionic zigomba guhitamo kugabanya ingaruka zidahungabana.
Inzobere: Kwinjiza inyongera nka surpactives, kubungabunga, cyangwa abakozi bafite amashanyarazi barashobora guhindura ph itumanaho rya PHC. Kwipimisha guhuza bigomba gukorwa kugirango tumenye ko bahuye no gutuza.
Gusaba no Gutegura Ibitekerezo
Gusobanukirwa na PH umutekano wa PHC ni ngombwa kubamurira mu nganda zitandukanye.
Hano haribitekerezo bimwe byihariye:
Ibicuruzwa byita ku muntu: muri shampoos, gakondo, no guhangayikishwa, kubungabunga phi murwego rwifuzwa (mubisanzwe bigira aho bigarukira) bituma habaho umutekano no guhagarika umubyimba no guhagarikwa.
Ibikoresho bya faruzi: Hec ikoreshwa muguhagarika umunwa, ibisubizo by'amasako, hamwe nibitera byingenzi. Ibimutwe bigomba gushyirwaho kandi bibitswe mubihe bibika umutekano wa Hec kugenzura ibicuruzwa nibikorwa bya filf.
Gukora no gushushanya: Hec ikoreshwa nkimyifatire yubwoko hamwe nubwinshi mumashusho ashingiye kumazi hamwe namakoperatings. Abashinzwe gutanga amakuru bagomba gushyira mu gaciro pH hamwe nibindi bipimo ngenderwaho nka viscosiya, kugereranya, no gushiraho firime.
Ibikoresho byubwubatsi: Muburyo bushimangiye, HEC ikora nkabakozi bafunzwe namazi kandi itezimbere imikorere. Ariko, imiterere ya alkaline muri sima irashobora guhangana na Hec ituze, bisaba guhitamo neza no guhindura.
Hydroxyyeryl selile (HEC) itanga imitungo ifite agaciro n'imikorere muri porogaramu zitandukanye. Gusobanukirwa gushikama kwa PH ni ngombwa kubantu bashinzwe guteza imbere ibihamye kandi byiza. Mugihe HEC yerekana uburakari bwiza bwa PH ibyahinduwe, ibitekerezo bigomba gukorwa kubidukikije bya aside na alkaline kugirango birinde gutesha agaciro no kureba neza imikorere myiza. Muguhitamo amanota akwiye ya HEC, uburyo bwo gutanga ibitekerezo, no gushyira mubikorwa imiterere ikwiye, abashinzwe ibishushanyo bishobora gukoresha inyungu za HEC hakurya yubunini butandukanye.
Igihe cya nyuma: Werurwe-29-2024