Stabilisateur yumucyo (izina ryicyongereza: Light stabilizer; Photostabilizer) ninyongera kubicuruzwa bya polymer (nka plastiki, reberi, ibifuniko, fibre synthique). Irashobora gukingira cyangwa gukuramo ingufu za ultraviolet, kuzimya ogisijeni imwe rukumbi hamwe na hydrogen peroxidize. Irashobora kubora ibintu mubintu bidakora nindi mirimo, kugirango mugihe imirasire yumucyo, polymer irashobora gukuraho cyangwa kugabanya umuvuduko wibisubizo bya fotokome, gukumira cyangwa gutinza inzira yo gufotora, bityo bikagera kumugambi wo kongera ubuzima bwa serivisi yibicuruzwa bya polymer. Stabilisateur yumucyo ninyongera ishobora kurinda ibikoresho kama kwangirika kwurumuri. Irashobora gukurura, gukwirakwiza no kwimura imishwarara yangiza ultraviolet, bityo ikarwanya neza okiside, gusaza, kwangirika nibindi bintu bibi, no kongera ubuzima bwibikoresho. Uburyo bwibikorwa bya stabilisateur yumucyo bigerwaho cyane cyane muburyo bubiri bwingenzi: bumwe nuburyo bwo kwinjiza urumuri, ni ukuvuga ko stabilisateur yumucyo ishobora kwinjiza imirasire ya ultraviolet no guhindura ingufu za ultraviolet imbaraga zubushyuhe, bityo bikagabanya ingaruka ziterwa nimirasire ya ultraviolet kubikoresho kama; ubundi ni uburyo bwo gufata radical yubusa, ni ukuvuga, stabilisateur yumucyo irashobora guhuza na radicals yubuntu, bityo bikagabanya umuvuduko wibisubizo byubusa kandi bikarinda ibikoresho kama okiside nubusaza biterwa na radicals yubuntu. Ukurikije uburyo butandukanye bwibikorwa nibiranga imiterere, stabilisateur yumucyo irashobora kugabanwa muburyo bwinshi butandukanye. Muri byo, ubwoko bukunze kugaragara bwumucyo harimo: kwinjiza urumuri rwumucyo, gufata imishwarara yumucyo hamwe na chelating stabilisateur.
1. Umukozi ukingira urumuri: Ubu ni ubwoko bwibintu bishobora guhagarika cyangwa kwerekana imirasire ya ultraviolet, bikabuza urumuri kwinjira muri polymer, bityo bikarinda polymer. Ibikoresho bikingira urumuri birimo pigment organique nka karubone yumukara na titanium oxyde, hamwe nibimera kama nka phthalocyanine ubururu na phthalocyanine icyatsi. Muri byo, umukara wa karubone ufite ingaruka nziza zo gukingira.
2. Ifite ubushyuhe bwiza nubushyuhe bwumucyo. Ukurikije imiterere yimiti yabo, barashobora kugabanywamo cyane cyane: o - hydroxybenzophenone, benzotriazoles, salicylates, triazine, na acrylonitrile yasimbuwe. Ikoreshwa nka stabilisateur yumucyo ifasha kandi ikabuza urumuri rutanga urumuri, cyane cyane muri polyolefine cyangwa gutwikira.
3. Ifite ingaruka nziza yo gutuza kuri polymers kandi ikoreshwa cyane muri firime na fibre. Ahanini bimwe bihwanye nikel chelates. Ingunguru ya nikel yumucyo ifite imikorere myiza, ariko kubera uburozi bwibyuma biremereye, birashobora gusimburwa nubundi butari - uburozi cyangwa buke -.
4. Ahanini yabangamiye urumuri rwa amine (HALS). Nubwoko bushya butanga icyizere cyo hejuru - imikorere yumucyo utanga urumuri, hamwe nimpuzandengo yumwaka wikigereranyo cya 20% kugeza 30% mumahanga.
5. Hydroperoxide decomposer: Nimwe mumbogamizi yumucyo amine. Polimeri irashobora kubyara hydroperoxide mugihe cyo kubika no kuyitunganya, biganisha ku kwangirika kwifoto ya polymers. Hydroperoxide yangirika irashobora kubora peroxide kugirango itange azote ihamye - ogisijeni yubusa kandi ikomeza gufata radicals yubuntu. , bityo bikabuza polymer kwangirika.
Muri make, nkibyingenzi byingenzi, stabilisateur yumucyo irashobora kongera igihe cyumurimo wibikoresho kama kandi bigatezimbere kwizerwa no gushikama. Isosiyete yacu izakomeza kwiyemeza gukora ubushakashatsi no gushyira mu bikorwa urumuri rutanga urumuri no gutanga ibicuruzwa na serivisi nziza ku baguzi ku isi.
