Mukudzika kuongororwa kwePolytetrafluorootherylene PTFE zvivakwa uye zvinoshandiswa

PolytetraFluorohylehene (poly tetra fluoroethyle), chidimbu cheChirungu chePtfe, chinowanzozivikanwa se "mambo wepurasitiki", zita remuzunguzi iTeflon. In China, due to the pronunciation, the trademark "Teflon" is also called Teflon, Teflon Dragon, Teflon, Teflon, Teflon, etc. are all transliterations of Teflon.

PolytetraFluorooteroetyle anozivikanwa se "mambo weplastics." Roy plunkett, baba veFluoroinin, vakatanga kutsvagurudza kuti Freon kuUnited States muna 1936. Vakazvichengetedza muCylinda kugadzirira yechipiri vakaedza zuva rinotevera, asi kana ivo Akavhura kudzvinyirira kuderedza vharuvhu yeiyo cylinder zuva rinotevera, hapana gasi rakapukunyuka. Vaifunga kuti yaive gasi rinobhururuka, asi pavaidya silinda, vakawana kuti dhiza rakanga risina kuremerwa. Vakaona vhura silinda uye vakawana huwandu hwakawanda hwechena hupfu, hwaive polytetrafluorohyle.

Tsvagurudzo yavo yakawana kuti polytetrafluorohlene ine midziyo yekunyepedzera uye inogona kuisimbisa masheya eatomu Yakanga isiri kusvika pakupera kweHondo Yenyika II kuti yakarondedzerwa, uye kugadzirwa kwemaindasitiri kwaPtfe kwakawanikwa muna 1946.

1. Chigadzirwa Zita: PTFE

2. Chirungu Zita: PolytetraFluorohylene

3. Alias

Ptfe; Teflon; Teflon; Teflon; Teflon; F4; Mambo weplastics; Teflon (chiJapanese) [Chirungu chidiki

PTFE, zita remhando yacho izita reChinese, uye shanduro yeChina yakasiyana munzvimbo dzakasiyana: Mainland China inotsaukira saTeflon, Hong Kong inotsausa seTaiwlon, uye Taiwan inodudzira seTeflon]

4. Molecular formula:

[CF2CF2] N

5. Kugadzira nzira

Ptfe

Inogadzirwa neyemahara yakanyanya polymerization ye tetrafluorolene. Maindasitiri Polymerization maitiro anoitwa nekukurudzira pamberi pehukuru hwemvura yakawanda kuti aparadze kupisa kwekuita uye kufambisa tembiricha. Polymerization inowanzoitwa pa40 kusvika ku80 ° C uye kumanikidzwa kwe3 kusvika 26 kgf / cm2. Inorganic inodzivirira uye organic mapessides inogona kushandiswa seumitasors, kana redox kutanga system inogona kushandiswa. Imwe neimwe mole yeTetrafluorootherleHellene inoburitsa kupisa kwe 171.38kj panguva polymerization. Kupararira Polymerization kunoda kuwedzera kwespelorintated surfers

6. Chikumbiro

PolytetraFluorohlene [ptfe, f4] ndeimwe yezvishandiso neakanakisa kurwisa kupesana munyika nhasi, saka inozivikanwa se "mambo weplastics". Inogona kushandiswa mune chero mhando yemakemikari enhau kwenguva yakareba, uye kugadzirwa kwayo kwakagadzirisa matambudziko mazhinji mumagiripi angu endyokema yangu, petroleum, mishonga yemishonga uye mamwe mishonga. Zvisimbiso zvePTFE, magesi, uye magesi. Zvisimbiso zvePTFE, magesi, uye magesi anoumbwa kubva kumiswa polmerized ptfe resin. Kuenzaniswa nedzimwe purasitiki, PTFE ine yakanaka yemakemikari corrosion kuramba uye kupisa kupisa. Izvo zvakange zvashandiswa zvakanyanya sekuisa chisimbiso uye kuzadza zvinyorwa. Iyo ine mwero wakakura wekugadzikana kwemakemikari uye kupokana kwakanaka kumakemikari kurwisa, zvakadai sekurwisa acids yakasimba, zvakasimba Alkali Iyo yakareba-nguva yekushandisa tembiricha ndeye -200- + 250 ℃. Iyo ine yakanakisa yemagetsi magetsi uye haina kukanganiswa nekudziya uye frequency. Mukuwedzera, iyo ine hunhu hweisina-tsvimbo, husina-huchi uye husiri kupisa. Kumiswa kunowanzoitwa uye kuiswa nekuumbwa nekuumbwa uye kutadza. Matombo anokonzerwa, mahwendefa kana mamwe ma profiles anogona kuenderera mberi nenzira dzemachina dzakadai sekutendeuka, kudhiraivha, uye kugaya. Bar rinogona kuzoshandurwa uye rakakweverwa mufirimu rakateedzerwa.

7. PolytetraFluorootherylene (PTFE) hunhu

1. Simba (yakakwira simba-kune-uremu chiyero)

2. Chemical inert

3. Biological Adaptability

4. High Hormal Resistance

5. Yakakura yemakemikari kuramba munzvimbo dzine hutsinye

6. Kufa kwakaderera

7. Low Low Friction Coefficient

8. Low Difelectric anogara

9. Yakadzika mvura yekunyora

10.Good mamiriro ekunze zvivakwa

Ptfe is polymer ye tetrafluoroleethery. Iyo yeChirungu chidimbu chiri ptfe. Iro zita rekutengeserana ndi "Teflon". Inozivikanwa se "mambo weplastics". The basic structure of polytetrafluoroethylene is - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 -. PolytetraFluorohlene inoshandiswa zvakanyanya mune dzakasiyana siyana zvikumbiro zvinoda kuramba kuApids, alkalis uye organic sol sol. Hazvina kuurayiwa kwevanhu, asi perfluoroctanoate (pfoa), chimwe chezvinhu zvakasarudzika zvinoshandiswa mukugadzira maitiro, inoonekwa seyakangoita carcinogenic. Huremu hwakaenzana hwePolytetrafluorolehlene rakakura, kubva pamazana ezviuru kusvika pamamirioni anopfuura mamirioni gumi, uye nepo polyethylene inongova 103). Kazhinji, iyo crystallinity ndeye 90 kusvika 95%, uye tembiricha yekunyungudika ndeye 327 kusvika 342 ° C. Iyo CF2 zvikamu muPolyttrafluoroLeetyy Molecule yakarongedzwa muchimiro cheZigzag. Sezvo radius yeTom yeTom iri yakakura zvishoma kupfuura iyo ye hydrogen pamusoro pechiso chose polymer. Iyi molecular chimiro inotsanangura zvivakwa zvakasiyana siyana. Kana tembiricha yakaderera pane 19 ° C, a 13/6 Helix inoumbwa; Pana 19 ° C, shanduko yePase inoitika, uye mamorekuru akave asina kuvharwa zvishoma, achiumba 15/7 Helix.

8. makemikari zvivakwa

Iyo yemakemikari chimiro chePolytetraFluoroethyle inoumbwa nekutsiva ese maatomu maatomu muPolyethylene ane maatomu eFluorine.

Iwo maToms muPTFE Molecule Cover bondis bonds, uye iyo CF Bond Servers yakakwira uye yakanyanya kugadzikana. Izvo hazvina kugadzirwa nemakemikari chero kunze kweAlkali simbi uye elemental fluorine.

Iyo fatomu muPTFE MOLECULE SYMMETAL, uye zvinhu zviviri zviri muCF zvakabatanidzwa zvakabatanidzwa. Iko hakuna magetsi emahara mumorekuru, uye molecule yese haina kwayakarerekera. PTFE ine yakanakisa dielectric zvivakwa nekuti hapana gram zvisungo mumanyorerwo eptfe, saka kuchema kwayo kwakakwirira kwazvo. Nekuti pane iyo inert fluorine-ine ganda riri kunze kweiyo ptsfe mamorekuru, iyo ine sarudzo dzisiri-dzisina-tsvina uye kupfava kwakaderera.

1. Insulation: isina kukanganiswa nenharaunda uye frequency, iyo vhoriyamu kupokana inogona kusvika 1018 OHM CM, kurasikirwa kweDilectric idiki, uye kupaza voltage yakakwira.

2. Yakakwirira uye yakaderera kupisa kudzikisira: Iko kukanganisa pane tembiricha hazvishanduke zvakawanda, iyo tembiricha yakasviba yakafara, uye tembiricha inoshandisika ndeye -190 ~.

3. Kuzvifunga-kuzvimiririra: Iyo ine iyo diki yekukakavara inokanganisa pakati pevapurasitiki uye ndiyo yakanaka yemafuta-yemafuta-emahara lubricating zvinhu.

4. Survence isiri-inonamira: Hapana anozivikanwa zvinhu zvakasimba zvinogona kuomerera pamusoro pechiso. Icho chinhu chakasimba chine simba diki pane simba.

5. Kukweva kwechikepe kurwisa, radiation kuramba uye kuderera kwekutanga: iyo nzvimbo uye mashandiro anoramba asina kuchinjika mushure mekuratidzwa kwenguva refu kune mamiriro ekupedzisira.

6. Isiri-inopisa: okisijeni inodzikisira index iri pazasi 90.

7. Chemical Corrosion Rishance uye Kupokana Kwemamiriro ekunze: Kunze kweiyo Molten Alkali Simbi, PTFE haina kugadzirwa nemakemikari mamwe makemikari. Semuenzaniso, kana akabikwa muSulfutic acid, nitric acid, hydrochloric acid, kana kunyange aqua regalia, kurema kwayo kunoramba kuchinjika. Izvo zvakare zvinongoda kusakwana mumifananidzo ese, uye zvinongova zvishoma zvishoma mune ese alkanes pamusoro 300 ° C (anenge 0.1g / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G / 100G). PTFE haina kutora nyoro, haina-inopisa, uye yakagadzikana zvakanyanya kune okisijeni uye ultraviolet riys, saka zvine mamiriro ekunze akanaka.

Kunyangwe kukweretesa kweCarbon-kabhoni-carbon-carbon-fluorine zvisungo muPerfluorocarbons yekunyururudza kwe384.88kj / mol Naizvozvo, panguva yekushambadzira yakakwira, polytetrafluoroothery inonyanya kuderedzwa kuita tetrafluorole. Iyo yehuremu kurasikirwa mitengo (%) yePolytetraFluorohlene na 260, 370 uye 420 ° C vari 1 × 10-4, 4 × 10-3 na9 × 10-2 paawa zvichiteedzana. Inogona kuona kuti ptfe inogona kushandiswa kwenguva yakareba muna 260 ℃. Sezvo zvakanyanyisa chepfu ne-zvigadzirwa zvakaita seFluoroButylegenecesebutywebutywobuty rights

Izvo hazvinyunguduke pakudziya kwe250 ° C uye hazviite brittle pane ultra-yakadzika tembiricha ye -260 ° c. Ptfe inotsvedza, kunyange ice haigoni kuenzaniswa nayo; Zvivakwa zvayo zvekunzwa zvinonyanya kunaka, iyo firimu yakakora sepepanhau rakakwana kuti riregedze vhoriyamu hombe ye1500V.

9. Zvivakwa zvemuviri

PTFE yakamakwa. Ine simba rakanyanya kusimba simba.

PolytetraFluorohylehene (F4, PTFE) ine yakanyanya kunaka yekuita zvinhu: Yakareba yekudziya-nguva yekushandisa tembiricha ye200 ~ 260 Corrosion Rishance - Kurwisa Aqua Regia uye ese organic soles; Kuparadzaniswa kwemamiriro ekunze - hupenyu hwakanakisa hwekukwegura mumapurasitiki; Yakakwira Lubrication - ine chidiki chidiki chekupfekedzwa mubatanidzwa muPurasitiki (0.04); Asiri-inonamira - ine diki diki yekunetseka mumidziyo yakasimba isina kuomerera kune chero chinhu; non-ine chepfu - ine pindiki interness; yakanakisa zvemagetsi zvemagetsi, yakanakira c-kirasi insulation zvinhu. Zvigadzirwa zvePTFE zvinoshandiswa zvakanyanya mumatunhu akakosha senge dziviriro yenyika, areomi simba, peturu, radio, mashandiro emagetsi, uye maisitiri emakemikari.

10. PolytetraFluorootheryle zvigadzirwa

PTFE RDS, mapaipi, mahwendefa, akashanduka mahwendefa. Ptfe is polymer ye tetrafluoroleethery. Iyo yeChirungu chidimbu chiri ptfe. Iyo formula yekugadzira ndeye. Yakawanikwa mukupera kwe1930 uye kuiswa mukugadzirwa kwemaindasitiri muma1940. Zvivakwa: Huremu hwemubatanidzwa wePolytetrafluorohlene akakura, kubva pamazana ezviuru kusvika pamamiriyoni anopfuura mamirioni gumi, nepo polytetylene inongova 103). Kazhinji, iyo crystallinity ndeye 90 kusvika 95%, uye tembiricha yekunyungudika ndeye 327 kusvika 342 ° C. Iyo CF2 zvikamu muPolyttrafluoroLeetyy Molecule yakarongedzwa muchimiro cheZigzag. Sezvo radius yeTom yeTom iri yakakura zvishoma kupfuura iyo ye hydrogen pamusoro pechiso chose polymer. Iyi molecular chimiro inotsanangura zvivakwa zvakasiyana siyana. Kana tembiricha yakaderera pane 19 ° C, a 13/6 Helix inoumbwa; Pana 19 ° C, shanduko yePase inoitika, uye mamorekuru akave asina kuvharwa zvishoma, achiumba 15/7 Helix.

1. Zvivakwa zvemuchina: Kukanganisa kwayo kuungana kwakanyanya, chete 1/5 yePolyethyle, inova chinhu chakakosha chePerfluoroRacarbon. Uye nekuti iyo intermolecular simba pakati peFluorine uye carbon chains yakanyanya kuderera, ptfe haina-inonamira.

2. Magetsi emagetsi: PTFE ine yakaderera dielectric nguva dzose uye dielectric kurasikirwa kwerefu, uye ine yakanyanya kuputsa voltage, vhoriyamu kuramba uye arc kuramba.

3. Radiation Resterance: Iyo radiation kuramba yePolytetraFluoroetherylene is murombo (104 rad). Ichasvibiswa mushure mekufumurwa kune yakakwirira-simba radiation, uye zvimiro zvemagetsi uye zvemakanika zvemapolymer zvichave zvakaderedzwa zvakanyanya.

4. Polymerization: PolytetraFluorootheryle inogadzirwa nemahara emahara polymerization yeTetrafluorolene. Maindasitiri Polymerization maitiro anoitwa nekukurudzira pamberi pehukuru hwemvura yakawanda kuti aparadze kupisa kwekuita uye kufambisa tembiricha. Polymerization inowanzoitwa pa40 kusvika ku80 ° C uye kumanikidzwa kwe3 kusvika 26 kgf / cm2. Inorganic inodzivirira uye organic mapessides inogona kushandiswa seumitasors, kana redox kutanga system inogona kushandiswa. Imwe neimwe mole yeTetrafluorootherleHellene inoburitsa kupisa kwe 171.38kj panguva polymerization. Kupararira Polymerization kunoda kuwedzera kwespelorintated surfers

5. Kuwedzeredza kuwanda (25 ~ 250 ℃): 10 ~ 12 × 10-5 / ℃. PTFE inochengetedza manhamba akanaka mumhando yepamusoro tembiricha ye -206 kusvika 260 ° C. Imwe yehunhu hwePerfluorocarbon polymers ndeyekuti ivo havasi brittle pane yakaderera tembiricha.