Nsakrae bɛn na ɛba wɔ nhyehyɛe mu wɔ PTFE ntama a ɛyɛ hyew kɛse mu bere a ɛrenyin no?

PTFEntama a ɛyɛ hyew a ɛkorɔn yɛ nneɛma a wɔabom ayɛ a wɔde polytetrafluoroethylene(PTFE) ntama a wɔde hyɛ mu anaasɛ wɔde kata ahwehwɛ nhama nnyinaso so.

Bere tenten a wɔde hyɛ ɔhyew a ɛkorɔn, ɔhyew-oxidative tebea horow, ultraviole atetesɛm, ne mfiridwuma mu nhyɛso mu no, ne nhyehyɛe no kɔ nsakrae a wotumi sesa fi molecule no so kɔ macroscopiclevel so.Wɔn a wɔyɛ PTFEtama a ɛwɔ ɔhyew a ɛkorɔn mu no te saa adeyɛ yi ase denam akwan horow a edidi so yi so:

I.Nsakrae nketenkete a ɛba wɔ PTFECoating mu

Molekyul nkɔnsɔnkɔnsɔn asɛe ne oxidation: Carbon-fluorine titire no kɔ nkɔnsɔnkɔnsɔn mu, depolymerization, ne oxidation, na ɛma molecule mu duru so tew na ɛma polar akuw te sɛ scarbonylandcarboxyl akuw a ɛwɔ nkɔnsɔnkɔnsɔn awiei.Eyi ma anim ahoɔden kɔ soro na ɛtew nea ɛnyɛ dua su ne nsu a ɛyɛ hu so.

Nsakrae a ɛba ahwehwɛ mu: Nkɔnsɔnkɔnsɔn ntiantiaa afã horow a ɛwɔ ahwehwɛ a ɛto so abien ase.Wɔ mfiase no, ahwehwɛ kɔ soro wɔ ɔkwan a ɛnteɛ so, na ɛma ade a wɔde kata so no yɛ den na ɛyɛ mmerɛw kɛse.Bere a ɔsɛe no mu yɛ den no, ahwehwɛ mpɔtam no sɛe na nhyehyɛe no hwe ase.

Microscopicmorphology a ɛsɛe: Ɔsɛe ne ntwitwiridii ma nhyɛso ma mpaapaemu nketenkete ne pinholes pii ba, na ɛyɛ corrosion channels.Sɛ emu yɛ den a, coatingsurface powders nePTFEparticles no tetew.

II.Nsakraeɛ a Ɛba Nsakyeraeɛ mu wɔGlassFiberSubstrate ne Interface mu

Failureoffibersizing/couplingagents: Silanecouplingagentsororganicsisingingagent ontheglass fibers surface decompose and carbonizeathight temperatures kan, a ɛma nnuru a ɛka bom ne mfiri a ɛka bom tumi a ɛda PTFE ne ahwehwɛ nhama ntam no yera.

Interfacialdebondingandlamination: Wɔinterfacial huammɔdi akyi no, nsonsonoe a ɛwɔ ɔhyew ntrɛwmu nsusuwii a ɛdaPTFE ne glass fiber ntam no ma ɔhyew mu nhyɛso ba, ɛma ɛyɛ topeling ne mpaapaemu a wɔde kata ntama no mu, na ɛde akisikuru, delamination, ne mmeae fitaa a wɔada no adi ba.

Ahwehwɛ nhama no ankasa a ɛsɛe: Ɔhyew a ɛkɔ soro ne nneɛma a ɛyɛ te sɛ nea ɛma ahwehwɛ nhama no mu paapae, na ɛma nhama no ani mu paapae nketenkete na ɛyɛ mmerɛw.Saa bere yi nyinaa, alkalimetaloxides a ɛwɔ ahwehwɛ nhama no mu no tɔ wɔ ɔhyew a ɛyɛ den mu, ɛma nhyɛso ba a ɛsɛe ntam no kɛse na ɛma ahoɔden a ɛyera no yɛ ntɛmntɛm.

III.Nsakrae a ɛba wɔMacroscopicStructure neAyɛyɛ mu

Kɔla nsakrae: Nneɛma no sesa nkakrankakra fi fitaa anaa abɔde mu kɔla mu kɔ beige, bruu, anaa tuntum mpo, a efi carbonization a ɛwɔ interfaciallayer no mu, adhesion oforganic efyants, andresidual products from small orPTFEdegradation.

Dimensionalstabilityand flatness: Shrinkagedeformation ba, ntama no ani yɛ nea ɛnteɛ, na ɛyɛ kurukuruwa.Eyi de molecule nkɔnsɔnkɔnsɔn a ɛnyɛ nea ɛkɔ baabiara ne interfacial stress release ba.

Surfaceroughening: Thesmoothte nka no yera, na surface no bɛyɛ sɛ na ɛyera gloss.Sɛ emu yɛ den a, wohu powdering bere a wɔde wɔn nsa aka, a ɛkyerɛ PTFEpowdering.

Mfiridwuma mu nhyehyɛe a ɛhwe ase: Nneɛma no hwere tumi a ɛyɛ mmerɛw na ɛbubu koraa bere a wɔabobɔw.

IV.Nneɛma a Ɛho Hia wɔ Mpanyinyɛ Adeyɛ no mu

Nsakraeɛ a ɛwɔ atifi hɔ no yɛ ɔkwan a ɛkɔ so a ɛfa 'coatingdegradation→interfacial failure→substrate degradation.'PTFElosesinertness na ɛma mpaapaemu;glass fiber interface no sɛe ansa na fiber nipadua no ankasa aba, ɛde kɔ delamination;ulti mately,theentirestructurebecomes brittle, powders,and disintegrates.Wɔhwɛ ɔhyew a ɛwɔ adwumayɛ so, kwati ɔhyew a ɛbɛba a efi adidi ne onwini a ɛyɛ ntɛmntɛm mu, na wosiw nkitahodi a ɛne asikre ne kali a ɛbɛtumi abrɛ saa nhyehyɛe yi brɛ ase yiye.

Nsɛm a ɛwɔ atifi hɔ no, wɔde maJiangsuOKNneɛma FoforoMfiridwumaCo.,Ltd.

Sɛ wopɛ sɛ wusua pii fa nsɛm a ɛkɔ akyiri, applications scenarios, ne customization options ma yɛn nneɛma ahorow nyinaa ho a—a PTFEhigh-temperature fabric, PTFEhigh-temperature tape,Teflonhigh ka ho -temperaturemeshbelts,seamlessbelting foradhesivepresses,single-sidedPTFEfabric,high-temperatureconveyorbelts,ne fiberglassfabric a ne hyew yɛ kɛse—yɛsrɛ wo te nka sɛ wofa akwan a edidi so yi so di nkitaho:

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