Vuyelo bya nkoka bya ku hangalasiwa ka vukulu bya swiphemuphemu swa PTFE Emulsion na Ndzilo wa Molekhuli eka ku Tiyisela ku Ambala ka Lapi ra Fibre ya Nghilazi

Lapi ra teflon ra mahiselo yale henhla kusuka eka Jiangsu Aokai New Materials i xitirhisiwa lexi hlanganisiweke lexi simekiweke eka lapi ra fibre ya nghilazi, leri cheriweke polytetrafluoroethylene (PTFE) emulsion naswona ri sintered. Ku tiya ka yona lokunene ka ku onhaka i ka nkoka swinene eka ku tiyisisa vutomi byo leha bya ntirho ehansi ka swiyimo swa ntirho leswi cinca-cincaka swofana na conveyor belts, release gaskets, na microwave drying. Swilo swa nkoka leswi lawulaka ku tiya ka lapi ra Teflon ra mahiselo yale henhla swile ka swikombiso swimbirhi swa emulsion ya PTFE leyi titimelaka: ku hangalasiwa ka vukulu bya swiphemuphemu  na ntiko wa molekhuli . Swilo leswi swimbirhi swi lawula hiku kongoma vutshembeki, kufana na ku tiya ka surface protective layer ya Teflon high-temperature cloth. Ku antswisa endlelo ra vuhumelerisi bya lapi ra Teflon ra mahiselo yale henhla, swina nkoka kutwisisa mbuyelo wa vona wa nkoka eka ku tiya ka ku onhaka.

Vukulu na ku hangalaka ka swiphemuphemu swa emulsion swi boha loko PTFE yinga nghena hindlela yin’we naku khoma hi ku tiya eka xivumbeko xa fibre ya nghilazi ya lapi ra Teflon ra mahiselo yale henhla.

Ideal particle size range for Teflon high-temperature cloth :PTFE emulsions leyi endleriweke hiku hlawuleka eka Teflon high-temperature cloth impregnation hi ntolovelo yina vukulu bya ti particle bya xikarhi lebyi lawuriwaka eka 0.15–0.35 μm (150–350 nm) . Xikombiso, ti emulsions to hlawuleka ta lapi ra Teflon ra mahiselo yale henhla kufana na Chemours DISP 30LX tina vukulu bya ti particle bya xikarhi bya 0.22 μm. Ti particles eka ndzhawu leyi tinga nghena kahle eka ti fibre bundles ta Teflon high-temperature cloth, ti endla leyara yo sirhelela leyi khomiweke swinene naswona yi rhetela endzhaku ka sintering.

Vuyelo byo biha bya vukulu bya ti particle letintsongo ngopfu :Emulsion leyintsongo ngopfu yina ku nghenelela loku tlulaka mpimo. Hi nkarhi wa impregnation, yitala ku nghena ngopfu eka swiphemu swale ndzhaku kumbe swale ndzeni swa substrate, leswi hungutaka swiphemu leswi tirhaka leswinga tiyiselaka ku onhaka leswi hlayisiweke ehenhla ka lapi ra Teflon ra mahiselo yale henhla xikan’we naku hunguta vutomi bya ku onhaka ka le henhla.

Vuyelo byo biha bya vukulu bya swiphemuphemu leswikulu ngopfu :Emulsion yo khwaxa ngopfu ayi koti ku nghena swinene eka swivandla swa fibre ya nghilazi ya lapi ra Teflon ra mahiselo yale henhla, yi endla ntsena xifunengeto xale henhla lexi ntshunxekeke ehenhla. Loko lapi ra Teflon leri hisaka swinene ri endliwa dynamic friction, xifunengeto lexi lexi nga namarheliki kahle xi rhurhumela hi ku olova xi va swiphemu leswikulu, leswi endlaka leswaku xiendliwa xi tsandzeka hi ku kongoma.

Ndzilo wa molekhuli wu boha swivumbeko swa michini na mahanyelo ya tribological ya PTFE polymer hi yoxe, naswona i ya nkoka swinene eka endlelo ro lwisana na ku onhaka ka lapi ra Teflon ra mahiselo yale henhla.

Endlelo ro tiya na ku ti tota ra lapi ra Teflon ra mahiselo yale henhla :Ku tiya ka lapi ra Teflon ra mahiselo yale henhla swi huma eka friction coefficient ya rona yale hansi swinene. Hi nkarhi wa friction, ti molecules ta PTFE ehenhla ti hundzisela eka nchumu lowu hlanganisaka, ti endla filimi yo hundzisela leyi ti tolaka leyi sirhelelaka lapi ra Teflon hi roxe.

Nkucetelo wo hlawuleka wa ntiko wa molekhuli eka matirhelo :Tidyondzo ti kombisa leswaku eka switirhisiwa swa malapi ya mahiselo yale henhla ya Teflon, PTFE ya ntiko wa molekhuli yale hansi  yitala ku kombisa ku tiya ko antswa ka ku ambala. Leswi swivangiwa hikuva PTFE ya low-molecular-weight yina ti molecular chains to koma xikan’we naku famba famba kale henhla, leswi endlaka leswaku kuva na ku hatlisa naku tshamiseka ka ku endliwa ka filimi yo hundzisela leyi tirhaka kahle hinkarhi wa friction exikarhi ka lapi na xitirhisiwa xo tirhela eka xona. Kuhambana na sweswo, PTFE ya molecule yale henhla yitala kuva yivanga mahanyelo ya stick-slip hinkarhi wa friction, leswinga nyanyisaka ku ambala ka ndzhawu ya lapi ra Teflon ra mahiselo yale henhla.

Ku hangalasiwa ka vukulu bya ti particle switiyisisa ku enta ka impregnation xikan’we naku namarhela loku fanaka ka coating eka Teflon high-temperature cloth, loko molecular weight yi antswisa formation efficiency ya self-lubricating transfer film. Hiku twisisa swinene naku lawula kahle vuxaka exikarhi ka swilo leswi swimbirhi ntsena laha lapi ra mahiselo yale henhla ya Teflon ringa nyikiwa matirhelo yo hlamarisa yo lwisana na ku onhaka lawa ya lavekaka eka swiyimo swa ntirho swa nkarhi woleha leswi cinca cincaka, leswi engetelaka swinene vutomi bya yona bya vutirheli eka ku baka swakudya, ku omisiwa ka ku kandziyisa, ku lamination ka photovoltaic na tinsimu tin’wana. Aokai New Materials yi kongomisa eka swikombiso leswi swa microscopic ku tiyisisa matirhelo ya macroscopic lawa ya tiyeke ya lapi ra Teflon ra mahiselo yale henhla.

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

Ku kuma tipharamitha leti nga na vuxokoxoko, swiyimo swa xikombelo na swintshuxo leswi endleriweke ku tirhisiwa hi ku landza swilaveko swa nxaxamelo wa hina hinkwawo wa swikumiwa – 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 PTFE, mabandhi lama nga na swirhabyani ya michini yo boha, lapi ra PTFE ra tlhelo rin’we, mabandhi yo fambisa lama lwisanaka na mahiselo ya le henhla na lapi ra fiberglass ya mahiselo ya le henhla – tsakisa ku tihlanganisa hina hi ku tirhisa:

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