Jahawareerka la caleemo saaray oo leh tert-butty (x = tert-renyl) iyo methyl (r = methyl ch3) ee phenolic-ka hydroxyl, sidaas darteed qaab-dhismeedka 'antioxidunt', sidaas darteed qaab dhismeedka cusub ee antioxidant wuxuu ciyaari karaa saameyn lama filaan ah. Qaab-dhismeedkan cusub ee raxmaanta ah ee loo yaqaan 'antioxidant' waxaa loo yaqaan asymmetricric cambaareyn phenols phenols antioxidant.
Qaab dhismeedka resiolic ee resiolic ee loo yaqaan 'phenyl' oo leh koox tert-butt-butt ah iyo methyl group-ka ku yaal hydroxyl ortho-booska ayaa ku filan in la ilaaliyo. Resymetric-ka ayaa caqabad ku noqdeen cudurka 'pholeolidant' pholeolidant, oo leh 2 - methyl - 6 - Jeettyytytyly phemon oo ah lafaha guud, laakiin sidoo kale waxay ka dhigan tahay xasilloonida phacioxidant, laakiin waxay iska caabbisaa xasilloonida antioxidiant. Marka waxay leedahay wax qabad ka badan nooca sumcadda sumcadda dhaqanka ee loo yaqaan 'Phenol', waxayna ku habboon tahay codsiyada kuleylka kuleylka ah.
An245, A1790 (iyo sidoo kale AO807) iyo AO80 waa saddexda jeer ee Asymetric-ka ee ugu badan ee loo yaqaan 'antiymetrics', oo ay tahay in An245 ee ugu badan ee loo adeegsado qiimo jaban.
245 oo ah 245 ayaa si gaar ah ugu habboon isbadalka phacoult-ka phenolic ee polyland dabiiciga ah. Sida antioxidant, waxaa loo isticmaalaa hagaajinta xasilloonida kuleylka ee muddada-dheer ee polymers styrene sida miskaha, MBS iyo abstarrics-ka sida pom iyo pa iyo polyurethane. Sidoo kale waa erey-tilmaameedka silsilad wax ku ool ah oo ku yaal geedi socodka pvc plimoodka PVC. Shaygaani wax saameyn ah kuma lahan falcelinta polymer, oo loo isticmaalo saamaynta polystyrene sare, polyvinyl chloride, waxaa lagu dari karaa monomer ka hor polympremization.
Marka laga soo tago xaalada sahayda ee budada caadiga ah, waxaan ku siin karnaa 35% nuxurka kala-duwan--a245dw. Sanado badan oo waayo-aragnimo ah oo soosaarka ah, dareeraha kala firidhsan ee ay soo saartay oo ay shirkaddeena soo saartay oo ay sahlan tahay in la joojiyo, oo ay fududahay in la kala qaado budada, taas oo ah antioxidant-ka ugu weyn ee loo adeegsado geedi socodka pvc plimoodka.
Marwalba waa lagugu soo dhaweynayaa inaad nala soo xiriirto su'aalo!
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Waqtiga Post: Sep-13-2021