Kana iyo yechinyakare phenolic antioxidant inosangana neye nitrogen uye okisijeni gasi mumhepo, inogadzira quinone chimiro. Chimiro cheQinone ndicho chikonzero chekutsvaira uye kutsvuka.
Phosphite antioxidant inoshandiswawo zvakanyanya seyakanakisa anobatsira antioxidant. Nekudaro, pamwe nekuenderera mberi kwekuvandudzwa kweEU nharaunda yekuchengetedza zviyero, izvo zvinodikanwa zvephosphite antioxidant zviri kuramba zvichikwira uye zvichikwira. Phosphite antioxidant inoda kuve inoshamwaridzika zvakatipoteredza, isiri-chepfu, isiri phenolic, hydrolysis inodzivirira, uye kurwisa kupisa kwakanyanya.
Phosphite anobatsira antioxidant ndeimwe yeanoshanda kwazvo epolymer kudzikamisa zvinowedzera muma1990. Mumakore gumi, mhando nyowani dzemhando dzinobuda dzisingaperi, asi nekemikari yavo, tinogona kuona kuti chivakwa chitsva chephosphite chakanyanya chine mhete inonhuhwirira, uye kazhinji iri pentaerythritol diphosphite mhete mhete yakarongeka uye bisphenol phosphite ester chimiro. Zvinoreva kuti iyo phosphate ester inobatsira antioxidant tekinoroji yekuvandudza inofanirwa kutarisa pazvinhu zviviri: maitiro ekuvandudza mashini ekugadzirisa uye maitiro ekuvandudza kugadzikana kwehydrolytic.
Yedu isiri-phenolic antioxidant -AN333 & AN340, haina phenolic mamiriro, saka inogona kunyatso kudzivirira dambudziko reyero rinokonzerwa nequinone chimiro. Iyo yekugadzirisa tembiricha inogona kuve pamusoro pe180 ℃, uye yakaiswa muPU, PVC nemimwe minda nevatengi vazhinji mukati nekunze.
Pakati pavo, AN333 yakaratidzirwa kuita zvakanakisa muPU inopupuma fuma zvinhu, ine yakanakisa yero kuramba uye yakanaka hydrolysis kuramba. Icho chakanakisa chinotsiva cheJOHOKU Chemical JP333E.
Kunze kweiyo isiri-phenol antioxidants, isu tinopawo mamwe ekuwedzera ayo anoshandiswa muPU application. Pazasi pezvigadzirwa ndezvaunosarudza:
| KUTSANANGWA | CHEMA | CAS | COUNTER TYPE |
| UV ABSORBER | YIHOO UV1 | 57834-33-0 | |
| YIHOO UV571 | 23328-53-2 | TINUVIN 571 | |
| YIHOO UV B75 | BLEND | TINUVIN B75 | |
| ANTIOXIDANT | YIHOO AN333 | 77745-66-5 | JP333E |
| YIHOO AN340 | / | ||
| RIMI RETANI | YIHOO FR950 | / |
Iwe unogamuchirwa nguva dzose kuti utitane nesu kuti tibvunze!
Email: yihoo@yihoopolymer.com
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Post nguva: Sep-13-2021