PFOA, PFOS tau ua rau muaj kev ua qias tuaj thoob ntiaj teb, teeb meem kev ua qias tuaj ntawm fluorine feem ntau yuav loj heev, PFOA yog qhov nyuaj tshaj plaws rau kev rhuav tshem cov organic, uas txawm tias tau pom nyob rau hauv Arctic; thaum Lub Kaum Hli 27,2017, (PFOA) ua cov tshuaj carcinogens hauv chav kawm 2B.tau teev nyob rau hauvDaim ntawv teev cov tshuaj carcinogens ntawm WHO International Institute of Cancer. Tam sim no, muaj 33 hom tshuajcov tshuaj fluoride tau raug txwv, thiabPFOA DAWB, PFOS DAWB cov ntaub tsis muaj dejua nrov dua thiab nrov dua.
（1) Lub tshuab ua haujlwm ntawm cov dej tsis muaj fluorine
Lub ntsiab lus ntawm kev tiv thaiv dej yog ua kom lub kaum sab xis ntawm kev sib cuag ntawm cov tee dej thiab cov ntaub nto, feem ntau pom los ntawm kev ua tiav dej tsis nkag; Kev ua tiav dej tsis nkag yog cov txheej txheem ntawm kev xa cov polymer ua haujlwm nrog cov nyhuv tiv thaiv dej rau cov ntaub los ntawm theem dej, thiab tsim kom muaj kev npaj tsis tu ncua thiab kev coj ua.nyob rau ntawm qhov chaw ntawm daim ntaub, ua si cov nyhuv dej tsis nkag.
Cov tshuaj fluoride uas tsis muaj dej nyob ntawm cov khoom siv crystallization muaj zog ntawm fluoride monomer, uas yooj yim ua tiav cov kev teeb tsa ib txwm muaj ntawm cov ntaub. Tab sis txog kev ua tau zoo ntawm cov tshuaj tiv thaiv dej tsis muaj fluorine tsis muaj zog, uas xav kom ua tiav cov txiaj ntsig tiv thaiv dej zoo ib yam yuav nyuaj dua, yog li cov tshuaj tiv thaiv dej tsis muaj fluorine feem ntau yuav tsim cov "khoom ruaj khov" tshwj xeeb.to pab cov dej tsis sib haum xeeb ntawm daim ntaubQhov sib txawv ntawm kev ua tau zoo ntawm txhua tus neeg sawv cev tsis muaj fluorine yog feem ntau raws li qhov sib txawv ntawm cov khoom ruaj khov.
(2) Cov teeb meem thiab kev daws teeb meem ntawm kev ua cov dej tsis muaj fluoride
a. Yuav ua li cas thiaj txo tau qhov tsim cov cim dawb?
Hauv cov txheej txheem ntawm fluorine-free waterproof, vim yog cov khoom paraffin hauv cov neeg sawv cev tsis muaj dej, cov neeg sawv cev tsis muaj dej sib sau ua ke ntawm qhov chaw fiberthiab ntau yamlwm yam laj thawj, uas ua rau cov cim dawb tshwm sim ntawm daim ntaub yooj yim. Tus neeg sawv cev tsis muaj fluorine TF-5016A tuaj yeem txo qhov tsim cov cim dawb los ntawm kev txo cov khoom paraffin thiabtxo qhov loj ntawm cov khoom siv tiv thaiv dej. Vim yog qhov yuav tsum tau ua ntau dua ntawm qhov teeb meem txhim kho cov cim dawb, hom silicon uas tsis muaj fluorine tiv thaiv dej TF-5910 yog qhov kev xaiv zoo dua.
b. Yuav ua li cas thiaj txhim kho tau qhov tsis muaj dej nkag?
Tsis muaj fluoro Tus neeg sawv cev tiv thaiv dej tsis zoo, qhov nro ntawm qhov chaw loj dhau, tej zaum yuav zoo li cov ntaub nto tsis tshiab, cov dej nplaum thiab lwm yam tshwm sim. Tus neeg sawv cev tiv thaiv dej tsis muaj fluorine TF-5016 cov khoom tiv thaiv dej muaj zog siv tau los txhim kho cov ntaub los ntawm kev txo qhov nro ntawm tus neeg sawv cev tiv thaiv dej tsis muaj fluorine, txhim kho qhov crystallization, txhim kho cov nyhuv tiv thaiv dej ntawm cov ntaub.
Hauv cov txheej txheem ntawm kev ua cov dej tsis muaj fluorine, kuj tseem yuav muaj cov teeb meem xws li lub zog stripping tsis zoo, tsis kam dej siab, tawg tsis raug, hloov xim loj, cov khoom qhuav tsis zoo tom qab ntxuav, thiab lwm yam.Uas kuj tuaj yeem txhim kho tau raws li hauv qab no cov kev daws teeb meem.
Lub sijhawm tshaj tawm: Cuaj hlis-15-2022