Teflon mkulu zinchito ❖ kuyanika wapadera ndiptfemonga utomoni woyambira wa zokutira za fluorine, dzina la Chingerezi la Teflon, chifukwa cha matchulidwe, omwe nthawi zambiri amadziwika kuti Teflon, Teflon, Teflon, Teflon ndi zina zotero (zonse zomasulira Teflon).

Teflon imagawidwa mu PTFE, FEP, PFA, ETFE mitundu ingapo yofunikira: TEflon PTFE: PTFE (polytetrafluoron) zokutira zopanda ndodo zitha kugwiritsidwa ntchito mosalekeza pa 260 deG C, ndi kutentha kwambiri kwa 290-300 DEG C, kukangana kochepa kwambiri. coefficient, kukana kuvala bwino komanso kukhazikika kwamankhwala. Teflon FEP: FEP (fluorinated ethylene propylene copolymer) ❖ kuyanika osagwira ndodo amasungunuka panthawi yophika kuti apange filimu yopanda porous, yokhala ndi kukhazikika kwa mankhwala, zinthu zabwino kwambiri zopanda ndodo, kutentha kwapamwamba kwambiri ndi 200 ℃. Teflon PFA: Zovala za PFA (perfluoroalkyl) zopanda ndodo, monga FEP, zimasungunuka panthawi yophika kuti apange filimu ya porous. Ubwino wa PFA ndi kutentha kosalekeza kosalekeza kwa 260 ℃, kulimba kwamphamvu, makamaka koyenera kugwiritsa ntchito kutentha kwakukulu potengera kukana kwa ndodo ndi mankhwala pantchito. Teflon ETFE: ETFE ndi copolymer wa ethylene ndi tetrafluoroethylene. Utoto ndi fluoropolymer yolimba kwambiri, imapanga zokutira zolimba kwambiri zokhala ndi ntchito yabwino yolimbana ndi mankhwala pa 150 ° C.

Pambuyo yokutidwa ndi Teflon, ali ndi makhalidwe awa:

1, non-viscosity: pafupifupi zinthu zonse sizimalumikizidwa ndi filimu ya teflon. Ma nembanemba owonda kwambiri amawonetsanso zinthu zabwino kwambiri zosamata.

2, kukana kutentha: Kanema wa Teflon ali ndi kukana kwambiri kutentha komanso kukana kutentha kochepa. Nthawi yochepa imatha kupirira kutentha kwambiri mpaka 300 ℃, nthawi zambiri pakati pa 240 ℃ ~ 260 ℃ ingagwiritsidwe ntchito mosalekeza, ndi kutentha kodziwikiratu sikopanda dongosolo, imatha kugwira ntchito pa kutentha kozizira popanda embrittlement, sikusungunuka kutentha kwakukulu.

3, kutsetsereka: Kanema wa Teflon ali ndi mikangano yotsika. Katunduyo akamatsika, kugundana kwapakati kumasintha, koma mtengo wake umakhala pakati pa 0.05 ndi 0.15.

4, kukana chinyezi: teflon filimu pamwamba siimamatira ku madzi ndi mafuta, kulamulira kupanga sikophweka kumamatira ku yankho, monga dothi laling'ono, kupukuta kosavuta kumatha kuchotsedwa. Kupuma kwakanthawi, sungani nthawi ndikuwongolera magwiridwe antchito.

5, kuvala kukana: pansi pa katundu wambiri, ndi ntchito yabwino yokana kuvala. Pansi pa katundu wina, imakhala ndi ubwino wapawiri wotsutsana ndi kuvala komanso kusamata.

6. Kulimbana ndi dzimbiri: Teflon imakhala yolimbana ndi dzimbiri ndipo imatha kuteteza ziwalo zamtundu uliwonse kuti zisakokoloke ndi mankhwala.

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