Hi wihi Nsinya wa Nawu wa Ntirho wa Teflon’s Non-Stick Surface?

Jiangsu Aokai New Materials, muendli wa xihlovo wa lapi ra Teflon ra mahiselo yale henhla, u hlamusela sayense endzhaku ka rona.Nhundzu ya kahle swinene yo ka yinga namarheli ya Teflon (vito ra tikhemikhali: Polytetrafluoroethylene, PTFE) ngopfu ngopfu yi huma eka misinya ya milawu yimbirhi ya nkoka: matimba yale hansi yale henhla  na xivumbeko xa yona xo hlawuleka xa molekhuli.

1. Eneji ya le Hansi swinene ya le Henhla

Leyi i nsinya wa xisekelo wa physicochemical wa matirhelo ya non-stick.Enerji ya le henhla yi boha leswaku xivumbeko lexi tiyeke xi nga tsakamisiwa hi ku olova ku fikela kwihi hi swilo leswi nga mati.

Teflon yina matimba yale hansi swinene yale henhla (kwalomu ka 18.5 mN/m ), yale hansi swinene kutlula swinamarheti leswi tolovelekeke, mafurha, kumbe mati (ku tsana ka le henhla ka mati i kwalomu ka 72 mN/m).

Hikuya hi wetting theory , mati yanga hangalaka ntsena eka ndzhawu leyi tiyeke loko tension ya yona yale henhla yiri ehansi kutlula energy yale henhla ya solid.Tanihi leswi tension yale henhla ya swilo swotala yinga e henhla kutlula ya Teflon, aswi koti ku tsakamisa vuandlalo bya yona. Ematshan’wini ya sweswo, ti hlangana ti va mathonsi (kufana na mati eka tluka ra lotus) letingana contact angle yale henhla swinene (hi ntolovelo > 90°, hambi kuri ekusuhi na 120°).

Mbuyelo : Ndzhawu ya xiviri yo khumbana exikarhi ka nchumu lowu namarhelaka na Teflon i yitsongo swinene, hikokwalaho akuri hava ku khomiwa hi michini loku tirhaka kumbe ku hlanganisiwa ka tikhemikhali lokunga humelelaka. Hikwalaho swilo leswi thyakeke swa rhetela kutani swi nga sula hi ku olova.

2. Swihlanganisi swa C–F swo tiya na Xivumbeko xa Molekhuli lexi nga riki xa Polar

Xivumbeko xa timolekhuli ta teflon xi ni nkolo wa khaboni lowu rhendzeriweke swinene hi tiatomo ta fluorine.

·  Energy bond yale henhla : Bond ya carbon–fluorine (C–F) i yin’wana ya ti bonds leti tiyeke swinene eka organic chemistry. Leswi swiendla leswaku Teflon yitshamiseka swinene hi ti khemikhali naswona yi lava kuva yinga tirhi eka kwalomu ka swilo hinkwaswo (handle ka tinsimbi ta alkali leti n’okiweke na switirhisiwa swintsongo swo tiya swa fluorinating). A yi endli swihlanganisi swa tikhemikhali (covalent kumbe strong hydrogen bonds) na switirhisiwa leswi namarhelaka.

·  Polarity yale hansi : Hambi leswi fluorine yinga electronegative swinene, maendlelo ya yona ya symmetrical kuya hi molecular chain ya cancel out dipole moment hinkwayo. Teflon yina matimba swinene ya non-polar, hydrophobic, na oleophobic.Mati (polar) na mafurha (non-polar kambe high surface tension) aswinga endli matimba ya nkoka ya intermolecular (weak van der Waals forces) na Teflon.

3. Ku tirhisana exikarhi ka Friction Coefficient ya le hansi na Matirhelo ya Non-Stick

Hambi leswi friction coefficient yale hansi ngopfu ngopfu yi hlamuselaka solid–solid sliding, yi hetisisa mahanyelo ya non-stick.

Teflon yina yin’wana ya ti dynamic friction coefficients tale hansi swinene eka switirhisiwa hinkwaswo leswi tiyeke (around 0.04).

Loko swilo leswi namarhelaka swi ringeta ku namarhela, ku hlangana ka le hansi swinene ku swi sivela ku 'khoma' ehenhla. Hambi loko ku namarhela loku tsaneke, matimba matsongo ya le handle kumbe matimba ya nkoka-misava ma endla leswaku nchumu lowu wu rhetela ni ku hambanisiwa hi ku olova.

Rungula leri nga laha henhla ri nyikiwile hi Jiangsu Aokai New Materials Technology Co., Ltd.

Ku kuma vuxokoxoko bya tipharamitha, swiyimo swa xikombelo na swintshuxo leswi endleriweke switirhisiwa swa hina swa nxaxamelo hinkwawo, ku katsa na lapi ra mahiselo ya le henhla ya Teflon, thepi ya mahiselo ya le henhla ya Teflon, mabandhi ya mesh ya mahiselo ya le henhla ya Teflon, mabandhi lama nga na swirhabyani ya michini yo boha, lapi ra PTFE ra tlhelo rin’we, mabandhi ya conveyor lama tiyiselaka mahiselo ya le henhla, lapi ra fiberglass leri tiyiselaka mahiselo ya le henhla, etc., hi kombela u hi tihlanganisa hi ku tirhisa:

·  Nomboro ya Vukorhokeri: Tatana Guo 18944819998

·  Nkulukumba Liu 13705266308

Hi seketela filosofi ya vutirheli bya xiphurofexinali na byo tshembeka, naswona hi tinyiketerile ku ku nyika swintshuxo swa xiyimo xin’we na vukorhokeri byo nyikela nyingiso!