Dab tsi yog Txoj Cai Ua Haujlwm ntawm Teflon's Non-Stick Surface?

Jiangsu Aokai Cov Khoom Siv Tshiab, cov chaw tsim khoom ntawm Teflon high-temperature daim ntaub, piav qhia txog kev tshawb fawb tom qab nws.Qhov zoo tshaj plaws uas tsis yog-stick khoom ntawm Teflon (tshuaj lub npe: Polytetrafluoroethylene, PTFE) feem ntau yog los ntawm ob lub hauv paus ntsiab lus: tsis tshua muaj zog saum npoo  thiab nws cov qauv molecular tshwj xeeb..

1. Lub zog qis heev

Qhov no yog lub hauv paus ntsiab lus ntawm lub cev physicochemical ntawm kev ua haujlwm tsis yog-stick.Surface zog txiav txim siab yooj yim npaum li cas cov khoom nto tuaj yeem ntub dej los ntawm cov kua.

Teflon muaj qhov tsis tshua muaj zog saum npoo av (kwv yees li 18.5 mN / m ), qis dua li cov nplaum nplaum, roj, los yog dej (qhov nro ntawm dej yog li 72 mN / m).

According to the wetting theory , a liquid can only spread on a solid surface if its surface tension is lower than the solid's surface energy.Since the surface tension of most substances is higher than that of Teflon, they cannot wet its surface. Hloov chaw, lawv cog lus rau hauv cov tee dej (zoo li dej ntawm nplooj nplooj) nrog lub kaum sab xis siab heev (feem ntau> 90 °, txawm tias ze rau 120 °).

Qhov tshwm sim : Qhov chaw sib cuag tiag tiag ntawm cov nplaum nplaum thiab Teflon yog qhov me me, yog li tsis muaj kev sib txuas ntawm cov khoom siv hluav taws xob lossis cov tshuaj sib txuas tuaj yeem tshwm sim. Cov kab mob yog li ntawd swb tawm los yog tuaj yeem so tau yooj yim.

2. Muaj zog C-F Bonds thiab Non-Polar Molecular Structure

Teflon tus qauv molecular muaj ib lub pob txha caj qaum nruj nreem los ntawm fluorine atoms.

·  High bond zog : Cov carbon-fluorine (C-F) daim ntawv cog lus yog ib qho ntawm cov khoom muaj zog tshaj hauv cov organic chemistry. Qhov no ua rau Teflon tshuaj lom neeg ruaj khov thiab yuav luag tsis muaj zog rau yuav luag txhua yam tshuaj (tshwj tsis yog cov hlau molten alkali thiab ob peb cov tshuaj fluorinating muaj zog). Nws tsis tsim cov ntawv cog lus tshuaj (covalent lossis muaj zog hydrogen bonds) nrog cov khoom nplaum.

·  Tsawg polarity : Txawm hais tias fluorine yog electronegative heev, nws txoj kev sib xyaw ua ke ntawm cov saw molecular tshem tawm tag nrho lub sijhawm dipole. Teflon is strongly non-polar, hydrophobic, and oleophobic.Water (polar) and oils (non-polar but high surface tension) cannot form significant intermolecular forces (weak van der Waals forces) with Teflon.

3. Kev sib koom ua ke ntawm kev sib txhuam qis thiab kev ua haujlwm tsis zoo

Txawm hais tias qhov kev sib txhuam qis qis feem ntau piav qhia txog cov khoom siv zawv zawg, nws ua tiav cov cwj pwm tsis zoo.

Teflon muaj ib qho kev sib txhuam qis tshaj plaws ntawm txhua yam khoom siv (ib puag ncig 0.04).

Thaum cov khoom nplaum sim ua raws, qhov kev sib txhuam qis heev tiv thaiv lawv ntawm 'gripping' saum npoo. Txawm tias tsis muaj zog adhesion, me ntsis sab nraud quab yuam lossis lub ntiajteb txawj nqus ua rau cov khoom xaub thiab tshem tau yooj yim.

Cov ntaub ntawv saum toj no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.

Rau cov ncauj lus kom ntxaws, daim ntawv thov scenarios thiab customized kev daws teeb meem ntawm peb cov khoom tag nrho, suav nrog Teflon high-temperature daim ntaub, Teflon high-temperature daim kab xev, Teflon high-temperature mesh siv, seamless siv rau kev sib txuas cov cav tov, ib leeg-sided PTFE daim ntaub, high-temperature resistant conveyor siv ntaub, high-temperature contact.

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Peb txhawb nqa lub tswv yim kev tshaj lij thiab kev ua haujlwm ncaj ncees, thiab mob siab rau muab kev daws teeb meem rau koj ib leeg thiab saib xyuas kev pabcuam!