Kev ua tau zoo thiab kev siv cov tshuaj antioxidant feem ntau siv hauv lub hnab ua tshuab

Cov khoom thiab kev siv cov tshuaj antioxidants feem ntau siv hauv lub hnab ua tshuab yog raws li hauv qab no.
1.4[ - (3,5-di-tert-butyl-4-}hydroxyphenyl) propionic acid] pentaerythritol ester, tseem hu ua antioxidant 1010. Dawb ntws hmoov, melting point 120 ~ 125 degree, tsawg toxicity. Nws yog ib qho zoo antioxidant. Polypropylene cob yog dav siv los ua ib qho additive nrog siab thermal stability thiab yog heev haum rau siv nyob rau hauv kub kub. Lub hnab ntim khoom tuaj yeem txuas ntxiv lub neej kev pabcuam ntawm cov khoom. Tsis tas li ntawd, nws kuj tuaj yeem siv rau hauv feem ntau lwm cov resins. Feem ntau cov koob tshuaj tsis ntau tshaj 0.5 feem pua.
ob - Octadecyl (3,5-di-tert-butyl-4-hydroxyphenyl) propionate kuj hu ua antioxidant 1076. Dawb los yog daj crystalline hmoov, melting point 50-55 degree, non-toxic, insoluble nyob rau hauv dej, soluble nyob rau hauv benzene, acetone, ethane, esters thiab lwm yam kuab tshuaj. Nws tuaj yeem siv los ua antioxidant rau polyethylene, polypropylene, polystyrene, PVC, polyamide, ABS thiab acrylic resin. Nws muaj cov yam ntxwv ntawm cov pa oxygen zoo, tsis tshua muaj volatility thiab washability. Feem ntau cov koob tshuaj tsis ntau tshaj 0.5 feem pua. Nws tuaj yeem siv los ua tus pabcuam rau kev tsim cov khoom ntim khoom noj.
3.1, 1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane tseem hu ua antioxidant CA. Dawb crystalline hmoov, melting point 180~188 degree, tsis tshua muaj toxicity, soluble nyob rau hauv acetone, ethanol, toluene thiab ethyl acetate. Antioxidant haum rau polypropylene, polyethylene, PVC, ABS thiab polyamide resin, lub hnab ua tshuab, thiab tuaj yeem siv rau cov xov hlau thiab cables hauv kev sib cuag nrog tooj liab. Qhov dav dav npaum li cas yuav tsum tsis pub tshaj 0.5 feem pua.
4.2, 6-di-tert-butyl-4-methylphenol, tseem hu ua antioxidant 246. Dawb los yog lub teeb daj crystalline hmoov los yog flake, nrog melting point ntawm txog 70 degree thiab boiling point ntawm txog 260 degree, tsis muaj tshuaj lom. Nws yog siv nyob rau hauv ntau yam resins, insoluble nyob rau hauv dej, thiab muaj peev xwm zoo inhibit oxidation, thermal decomposition thiab cuam tshuam ntawm tooj liab, yog li nws yog dav siv. Lub tshuab ua lub hnab yog tsim nyog rau cov khoom ntim khoom noj (PVC, polypropylene, polyethylene, polyester, polystyrene thiab ABS) resin. Qhov dav dav npaum li cas yog 0.01 feem pua ​​~ 0.05 feem pua.