Yuav Ua Li Cas Xaiv Qhov Tsim Nyog Antioxidant?

Yuav ua li casXaivtusAtsim nyogAntioxidant?

Xaiv qhov tsim nyog antioxidant yog ib kauj ruam tseem ceeb los txhim kho cov kav ntev, zoo li thiab ua haujlwm ntawm polymer. Qhov no yuav tsum muaj kev xav txog ntau yam xws li cov khoom siv tshuaj lom neeg ntawm cov polymer nws tus kheej, kev ua haujlwm, kev siv ib puag ncig thiab kev tiv thaiv ib puag ncig.

Polyolefins(xws li polyethylene thiab polypropylene) yog qhov ua rau thermal oxidative degradation, xav tau cov tshuaj antioxidants (xws li phenols) txhawm rau ntes cov dawb radicals thiab auxiliary antioxidants (xws li phosphites) kom decompose hydroperoxide.

PVC's degradation yog tsuas yog raws li ionization, thiab piv rau polyolefins, PVC manufacturers muaj ntau tsawg thov rau antioxidants. Tam sim no, feem ntau siv cov tshuaj antioxidants rau PVC suav nrogTIAB SA 1076, AO2246, thiab lwm yam.

Engineering plastics(PA, PC, PPS) feem ntau ua tiav ntawm qhov kub thiab txias thiab xav tautshav kub-resistant antioxidantslos tiv thaiv yellowing thiab tsis muaj zog.

①Rau qhov kub thiab txias ua haujlwm (> 280 ℃), nws raug nquahu kom xaiv ntau yam uas tsis tshua muaj volatility thiab kub tsis kam.

②Rau lub sij hawm ntev sab nraum zoov, yuav tsum muaj synergistic anti-UV system, xws li phenolic tebchaw thiabUV absorbers.

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

④ Kev sib xyaw ua ke ntawm cov tshuaj antioxidant tseem ceeb thiab cov tshuaj tiv thaiv antioxidant tuaj yeem txhim kho cov nyhuv tiv thaiv kev laus.

Hauv cov ntsiab lus, kev siv cov tshuaj antioxidants ib leeg tsis txaus los tiv nrog ntau yam kev thov, thiab kev sib koom ua ke ntawm ntau yam tshuaj ntxiv yog qhov kev xaiv zoo dua.

Tiv tauj peb kom paub ntxiv!