Yuav ua li cas kub cuam tshuam hluav taws xob rwb thaiv tsev ntawm PTFE High-Temperature Cloth

PTFE high-temperature ntaub yog dav siv los ua hluav taws xob rwb thaiv tsev nyob rau hauv hlau harnessing, transformer txheej, lub cev muaj zog windings, thiab high-frequency circuits. Tab sis qhov kub thiab txias hloov - los ntawm txias txias mus rau huab cua sov - hloov nws tus cwj pwm insulating. Koj puas tuaj yeem cia siab rau PTFE daim ntaub ntawm 200 ° C? Dab tsi tshwm sim saum 260 ° C?

Cov lus teb yog nuanced. PTFE cov qauv molecular muab nws zoo heev rwb thaiv tsev nyob rau hauv feem ntau ntawm nws cov kev khiav hauj lwm ntau yam, tab sis tshaj 260 ° C ua rau irreversible degradation. Thiab thaum txias txias txhim kho cov khoom hluav taws xob, lawv ua rau cov txheej nkig.

Aokai PTFE tau kuaj cov khoom rwb thaiv tsev thoob plaws qhov kub thiab txias. Kab lus no rhuav tshem kev ua tau zoo rau hauv peb thaj tsam: kev ua haujlwm ib txwm (-180 ° C txog 260 ° C), siab siab (> 260 ° C), thiab qhov kub tsis tshua muaj (<0 ° C), nrog cov ntaub ntawv tseem ceeb ntawm kev tiv thaiv, lub zog dielectric, thiab cov txiaj ntsig siv tau.

Kev khiav hauj lwm li qub: -180 ° C txog 260 ° C - Cov rwb thaiv tsev siab heev

Nyob rau hauv no scope, PTFE high-temperature ntaub tuav zoo heev thiab ruaj khov hluav taws xob rwb thaiv tsev - ib tug tseem ceeb kom zoo dua txhawb nws cov kev lag luam thoob plaws daim ntawv thov.

1. Volume & Surface Resistivity

Mechanism: Resistivity poob qis me ntsis nrog qhov kub thiab txias vim tias qhov kub siab dua intensifies thermal motion ntawm PTFE molecular chains thiab accelerates migration ntawm kab impurity carriers. Txawm li cas los xij, txawm tias nyob rau ntawm 200 ° C, PTFE outperforms feem ntau engineering plastics ntawm chav tsev kub.

Lus Cim rau ntawm qhov chaw tiv thaiv: Qhov kev tiv thaiv saum npoo yog qhov cuam tshuam rau ambient humidity. PTFE yog ze li ntawm tsis-hygroscopic; deg noo noo evaporates ntawm qhov kub siab, xa cov rwb thaiv tsev ruaj khov dua li nyob rau hauv high-humidity chav tsev.

2. Dielectric zog (Tsawg Voltage)

• Txo thaum kub nce. Aggravated molecular thermal zog ua rau cov khoom muaj kev cuam tshuam rau hluav taws xob-tshuaj puas.

• Los ntawm chav tsev kub txog 200 ° C, lub sij hawm luv luv dielectric lub zog poob los ntawm kwv yees li 20% -40%.

• Txawm li cas los xij, cov ntaub ntawv hwm zoo nyob ib puag ncig 0.1 hli tuab tseem tiv taus ntau kilovolts (lossis kaum ntawm kilovolts rau cov qib tuab) ntawm 200 ° C - muaj peev xwm rwb thaiv tsev ruaj khov.

3. Dielectric Constant & Dissipation Factor - Qhov sib txawv tsawg heev

Vim li cas qhov no tseem ceeb: PTFE's symmetrical molecular qauv thiab ultra-low polarization lav ruaj khov teeb liab kis tau tus mob thiab ultra-tsawg tshav kub tiam nyob rau hauv high-frequency & high-temperature kev pab cuam. Qhov no tsim nyog PTFE ua ib qho zoo tshaj plaws high-frequency insulating khoom siv rau RF thiab microwave.

Aokai PTFE high-temperature daim ntaub yog teev los ntawm cov neeg muas zaub rau high-frequency transformer rwb thaiv tsev vim nws ruaj khov Dk (2.05 ± 0.05) thiab ultra-low tanδ (0.0002-0.0005) hla ntawm -50 ° C rau 200 ° C ntau yam. Peb muab cov ntaub ntawv qhia txog cov cuab yeej dielectric thaum thov.

Qhov Kub Kub Kub Kub Kub: Tshaj 260 ° C - Irreversible Degradation

Tshaj PTFE lub sij hawm ntev tso cai qhov kev pab cuam kub ua rau irreversible lub cev thiab tshuaj deterioration - tsis reversible khoom variation.

Kev ceeb toom tseem ceeb: Txawm hais tias lub hauv paus fiberglass ntaub tiv taus 550-750 ° C ua ntej softening, liab qab uncoated fiberglass tau yooj yim absorbs noo noo tom qab PTFE txheej tsis ua hauj lwm thiab tsis tuaj yeem ua hauj lwm rau nws tus kheej rau high-voltage rwb thaiv tsev.

Tsawg-kub ntau yam: qis dua 0 ° C - Txhim kho hluav taws xob tab sis siv tshuab tsis zoo

Cov ntsiab lus tseem ceeb: Txawm tias muaj kev txhim kho hluav taws xob rwb thaiv tsev ntawm qhov kub thiab txias, PTFE txheej ua nkig. Rau cov ntawv thov cryogenic (piv txwv li, kua nitrogen kab, cov hlau nplaum superconducting), xyuas kom cov ntaub tsis raug khoov los yog cov neeg kho tshuab kev ntxhov siab hauv qab -79 ° C. Thaum tawg, rwb thaiv tsev ncaj ncees yog ploj tsis hais txog ntawm cov khoom hluav taws xob.

Summary - Nyob rau hauv 260 ° C rau kev txhim khu kev qha rwb thaiv tsev

Nyob rau hauv cov ntsiab lus , nyob rau hauv lub nruam pom zoo ua hauj lwm kub (≤260 ° C), kub imposes negligible adversely cuam tshuam rau PTFE high-temperature daim ntaub hluav taws xob rwb thaiv tsev. Volume resistivity tseem nyob saum 10⊃1;⊃3; Ω·cm ntawm 200 ° C; dielectric tsis tu ncua nyob ntawm 2.0-2.1; dissipation factor hauv qab 0.001. Qhov no ua rau PTFE yog ib qho ntawm cov khoom siv hluav taws xob kub kub ruaj khov tshaj plaws uas muaj - tshwj xeeb tshaj yog muaj txiaj ntsig rau cov ntawv thov ntau zaus uas lwm cov polymers raug kev txom nyem loj.

Thaum overheated tshaj 260 ° C, rwb thaiv tsev tsis ua hauj lwm pib los ntawm cov neeg kho tshuab softening thiab deformation, nws thiaj li hloov mus rau hauv tag nrho cov hluav taws xob tawg. Tshaj li 400 ° C, carbonization tsim txoj hauv kev mus tas li. Hauv qab 0 ° C, cov khoom siv hluav taws xob txhim kho, tab sis cov neeg kho tshuab brittleness yuav ua rau cov txheej txheem tawg.

Xav tau PTFE high-temperature daim ntaub nrog guaranteed rwb thaiv tsev zog rau koj qhov kub thiab txias? Aokai PTFE muab tag nrho cov ntaub ntawv ntsuas dielectric los ntawm -70 ° C txog 260 ° C. Tiv tauj peb nrog koj qhov kev khiav hauj lwm kub, voltage, thiab zaus yuav tsum tau.

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

Yog tias koj xav tau cov kev qhia tshwj xeeb ntxiv, daim ntawv thov kev daws teeb meem, thiab kev tsim cov khoom lag luam ntau yam suav nrog PTFE cov ntaub ntawv kub, PTFE nplaum daim kab xev, PTFE mesh conveyor siv, seamless fusing tshuab siv, ib sab coated PTFE ntaub thiab high-temperature resistant conveyor & fiberglass daim ntaub , thov hu rau peb:

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Peb ua raws li kev tshaj lij thiab kev ncaj ncees kom xa ib qho kev daws teeb meem kev lag luam thiab xav txog kev txhawb nqa tom qab muag.