Mu gutunganya no gukoresha pulasitiki igihe kirekire, gusaza kwa ogisijeni ni ikintu gikomeye kibangamira igihe cyo kubaho no gukora kw'ibicuruzwa—gutunganya ubushyuhe bwinshi byoroshye gutuma resin yangirika, kandi ahantu ho hanze cyangwa mu bushyuhe bwinshi bishobora guteza ibibazo nko kwangirika, gucikamo ibice, no kwangirika kw'amabara. Antioxydants, nk'"abarinda gusaza" ba pulasitiki, bashobora kubuza uburyo ogisijeni ikoreshwa aho ikomoka. Antioxydants 1010, nk'umusaruro w'icyitegererezo mu bintu birwanya ogisijeni bya phenolic, yabaye inyongera ikunzwe cyane mu ruganda rwa pulasitiki rwa PE, PP, ABS, n'urw'ubuhanga bitewe n'ubushobozi bwayo bwo hejuru, imiterere yayo yagutse, n'imiterere yayo itangiza ibidukikije. Iyi nkuru izasesengura byimbitse Antioxydants 1010 uhereye ku bipimo by'ibicuruzwa, ibyiza by'ingenzi, ikoreshwa mu nganda, n'uburyo bwo guhitamo siyansi, itanga inyigo y'umwuga ku bigo kugira ngo bihitemo neza ibikoresho no kongera ubushobozi bwo guhangana n'ibicuruzwa.

I. GusobanukirwaAntioxydant 1010: Kuki byahindutse urugero rw'inganda?

Izina ry'ikinyabutabire cya Antioxidant 1010 ni pentaerythritol tetrakis (β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acide), iri mu bigize antioxydants nini za phenolic. Imiterere yayo yihariye ya molekile iduha imiterere myiza ya antioxydants kandi ijyanye neza, kandi izwiho "umwami wa antioxydants".

1. Uburyo bw'ingenzi bwo gukora: Kubuza gusaza kw'ibinyabutabire mu mubiri (oxidative deadline) nk'impamvu nyamukuru yabyo

Ishingiro ry’ubushaza bwa okiside ya pulasitiki ni uburyo bwo gukora okiside yigenga. Antioxidant 1010 ihagarika uburyo bwo gukora okiside binyuze mu mirimo ibiri y’ingenzi: iya mbere, ifata okiside yigenga ikorwa mu gihe cyo gukora okiside, igakora imiterere ihamye ya molekile, kandi igahagarika ikwirakwizwa n’ubwiyongere bwa okiside yigenga; iya kabiri, ihambira iyoni z’icyuma gito muri pulasitiki binyuze muri chelation, igagabanya ingaruka zo kwihutisha kwa iyoni z’icyuma kuri okiside. Ubu burinzi bubiri butuma habaho ingaruka zo kurwanya gusaza.

2. Ibyiza by'ingenzi ku bicuruzwa: Ibiranga by'ingenzi bishobora guhindurwa mu bihe byinshi

·Ubuhanga buhanitse, imiterere yagutse, no kwihuza neza: Ishobora gukoreshwa cyane muri pulasitiki hafi ya zose zikoreshwa muri thermoplastic nka PE, PP, PVC, ABS, PA (nylon), PC, na EVA, ndetse na rubber ya sintetike (SBR, NBR, EPDM, nibindi). Igicuruzwa kimwe gishobora guhaza ibisabwa mu kurwanya gusaza kw'ubwoko butandukanye bwa pulasitiki.

·Ubushyuhe bwinshi burambye no kwihanganira kwimuka neza:Uburemere bwayo bwinshi bwa molekile butuma idapfa kwangirika no kubora mu gihe cy'ubushyuhe bwinshi (160-280℃) bwo gutunganya plastiki, kandi ihura neza na resin. Ntiyimuka cyangwa ngo igwe imbere mu gicuruzwa mu gihe kirekire, bigatuma ikomeza kurwanya gusaza.

·Irinda ibidukikije kandi ntigira uburozi, kandi ikurikiza amategeko menshi:Nta ibara kandi nta mpumuro, kandi ntabwo yanduza isura y'ibicuruzwa bya pulasitiki. Yujuje ibisabwa na EU REACH, RoHS na GB 9685 mu gihugu, kandi ishobora gukoreshwa mu buryo bwizewe mu pulasitiki zikoreshwa mu biribwa, mu pulasitiki zo kwa muganga no mu bikinisho by'abana n'ibindi bintu bifite ibisabwa ku mutekano mwinshi cyane.

·Ingaruka z'ubufatanye n'ikiguzi gishobora kugenzurwa:Iyo ikoreshejwe hamwe na antioxydants z’inyongera nka 168 na DLTP, ishobora gutanga ingaruka zikomeye zo guhuza, hamwe n’ingaruka za antioxydants zirenze kure izo kuyikoresha yonyine, kandi ingano y’inyongera iba nto cyane (ubusanzwe 0.1%-0.5%), ishobora kugenzura neza ikiguzi cy’inyongera mu gihe yongera ubuzima bw’umusaruro.

II. Ishyirwa mu bikorwa ry’inyongera: Uburyo busanzwe bwo gukoresha Antioxidant 1010 mu nganda

Ibikoresho bya pulasitiki biva mu nganda zitandukanye bifite ibisabwa bitandukanye cyane mu ikoranabuhanga ryo gutunganya no gukoresha. Antioxidant 1010, hamwe no guhinduka kwayo, yashyizeho ibisubizo bikuze mu nzego nyinshi z'ingenzi: