Yuav ua li cas xaiv cov tshuaj antioxidant tsim nyog?

Yuav ua li casXaivlubAtsim nyogAtshuaj antioxidant？

Kev xaiv cov tshuaj antioxidant tsim nyog yog ib kauj ruam tseem ceeb los txhim kho qhov ruaj khov, tsos thiab kev ua haujlwm ntawm polymer. Qhov no yuav tsum tau xav txog ntau yam xws li cov khoom siv tshuaj lom neeg ntawm cov polymer nws tus kheej, cov xwm txheej ua tiav, qhov chaw siv kawg thiab cov cai tiv thaiv ib puag ncig.

Cov Polyolefins(xws li polyethylene thiab polypropylene) yog cov khoom siv uas yooj yim puas tsuaj los ntawm thermal oxidative, xav tau cov tshuaj antioxidants thawj zaug (xws li phenols) los ntes cov free radicals thiab cov tshuaj antioxidants pabcuam (xws li phosphites) los rhuav tshem hydroperoxide.

PVCQhov kev puas tsuaj ntawm cov khoom no feem ntau yog raws li ionization, thiab piv rau polyolefins, cov chaw tsim khoom PVC muaj qhov xav tau tsawg dua rau cov tshuaj antioxidants. Tam sim no, cov tshuaj antioxidants feem ntau siv rau PVC suav nrogAO1076, AO2246, thiab lwm yam.

Cov yas engineering(PA, PC, PPS) feem ntau yog ua tiav ntawm qhov kub siab thiab xav taucov tshuaj antioxidants uas tiv taus cua sovkom tiv thaiv kev daj thiab lub zog poob.

①Rau cov xwm txheej ua haujlwm kub siab (> 280 ℃), nws raug nquahu kom xaiv cov ntau yam uas muaj qhov tsis tshua muaj zog thiab tiv taus kub siab.

② Rau kev raug sab nraum zoov ntev, yuav tsum muaj lub kaw lus tiv thaiv UV synergistic, xws li cov tshuaj phenolic thiabCov khoom nqus UV.

③ Ua tib zoo saib xyuas qhov sib xws thiab tsis txhob muaj nag los. Tsis tas li ntawd, cov tshuaj amine antioxidants muaj kev tiv thaiv xim tsis muaj zog.

④Kev sib xyaw ua ke ntawm cov tshuaj antioxidant tseem ceeb thiab cov tshuaj antioxidant pab tau zoo heev rau kev tiv thaiv kev laus.

Hauv kev xaus lus, kev siv cov tshuaj antioxidants ib leeg tsis txaus los daws cov teeb meem ntawm ntau yam kev siv, thiab kev sib koom tes ntawm ntau yam khoom siv ntxiv yog qhov kev xaiv zoo dua.

Tiv tauj peb kom paub ntxiv!