Thaum cov tshuaj phenolic tshuaj tiv thaiv kab mob ib txwm tiv tauj nrog cov pa nitrogen thiab cov pa oxygen hauv huab cua, nws tsim cov qauv quinone. Qinone qauv yog lub hauv paus ua rau daj thiab tau liab.
Phosphite antioxidant kuj tseem siv dav ua cov tshuaj tiv thaiv kab mob zoo heev. Txawm li cas los xij, nrog kev txhim kho txuas ntxiv ntawm EU cov qauv kev tiv thaiv ib puag ncig, qhov xav tau ntawm phosphite cov tshuaj tiv thaiv kab mob tau nce siab thiab siab dua. Phosphite cov tshuaj tiv thaiv kab mob xav tau kom muaj kev nyab xeeb ntau dua ib puag ncig, tsis muaj tshuaj lom, tsis muaj phenolic, tiv thaiv tsis tau dej, thiab tiv taus kub ntau dua.
Phosphite cov tshuaj tiv thaiv kab mob tiv thaiv kab mob yog ib qho ntawm cov tshuaj polymer ruaj khov tshaj plaws ntxiv rau xyoo 1990. Hauv kaum xyoo, cov qauv tshiab tau tshwm sim nyob rau qhov tsis muaj qhov kawg, tab sis los ntawm lawv cov txheej txheem tshuaj lom neeg, peb tuaj yeem pom tias cov qauv tshiab ntawm phosphite feem ntau muaj cov ntxhiab tsw ntxhiab tsw ntxhiab, thiab feem ntau yog pentaerythritol diphosphite spiral ring structure thiab bisphenol phosphite ester qauv. Nws txhais tau tias phosphate ester cov tshuaj tiv thaiv kab mob antioxidant thev naus laus zis yuav tsum tsom mus rau ob yam: yuav ua li cas txhawm rau txhim kho kev ruaj ntseg thiab yuav ua li cas txhawm rau txhim kho kev ruaj ntseg hydrolytic.
Peb cov tshuaj tsis muaj phenolic antioxidant -AN333 & AN340, tsis muaj cov qauv phenolic, yog li nws tuaj yeem zam qhov teeb meem daj tshwm sim los ntawm cov qauv quinone. Kev ua haujlwm kub tuaj yeem siab dua 180 ℃, thiab nws tau thov hauv PU, PVC thiab lwm yam haujlwm los ntawm ntau tus neeg siv khoom hauv thiab txawv teb chaws.
Ntawm lawv, AN333 tau raug pov thawj los ua tau zoo heev hauv PU cov khoom ua npuas, nrog rau qhov ua kom daj daj tsis zoo thiab tiv thaiv dej tsis zoo. Nws yog qhov hloov pauv zoo tshaj plaws ntawm JOHOKU Tshuaj JP333E.
Dhau li ntawm cov tshuaj tsis muaj phenol, peb kuj tseem muab lwm yam ntxiv uas tau siv hauv daim ntawv thov PU. Cov khoom hauv qab no yog rau koj xaiv:
| CLASSIFICATION | KHOOM | CAS | TUS NEEG HOM |
| UV ABSORBER | YIHOO UV 1 | 57834-33-0 | |
| YIHOO UV571 | 23328-53-2 | TIAB SA 571 | |
| YIHOO UV B75 | QIB | TINUVIN B75 | |
| ANTIOXIDANT | TIAB SA 333 | 77745-66-5 | JP333E |
| YIHOO AN340 | / | ||
| ZOO TSHAJ PLAWS | YIHOO FR950 | / |
Koj ib txwm tos txais hu rau peb rau kev nug!
Email: yihoo@yihoopolymer.com
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Sijhawm Tshaj Tawm: Sep-13-2021