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 nya nsakrae a wotumi sesa fi molecule no mu kɔ macroscopiclevel.

I.Nsakrae nketenkete a ɛba wɔ PTFECoating mu

Molekyul nkɔnsɔnkɔnsɔn asɛe ne oxidation: Carbon-fluorine titiriw no kɔ nkɔnsɔnkɔnsɔn mu, depolymerization, ne oxidation, na ɛma molecule mu duru so tew na ɛma polarkuw 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 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 corrosionchannels.Sɛ emu yɛ den a, coatingsurface powders ne PTFEparticles no tetew.

II.Nsakraeɛ a Ɛba Nsakyeraeɛ mu wɔGlassFiberSubstrate ne Interface mu

Failureoffibersizing/couplingagents: Silanecouplingagentsororganicsisingingagent ontheglass fibers surface decompose and carbonizeathight temperatures kan, ɛde 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 ɛda PTFE ne glass fiber ntam no ma ɔhyew mu nhyɛso ba, ɛma ɛyɛ topeling ne sɛnea wɔtetew coating no fi ntama no mu, na ɛde blistering, delamination, ne mmeae fitaa a wɔada no adi ba.

Ahwehwɛ nhama no ankasa a ɛsɛe: Ɔhyew a ɛkɔ soro ne nneɛma a ɛyɛ te sɛe ma 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 a ɛsakra: Nneɛma no sesa nkakrankakra fi fitaa anaa abɔde mu kɔla mu kɔ beige, bruu, anaa tuntum mpo mu, 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 sɛnea ɛbɛyɛ 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 wɔbobɔw.

IV.Nneɛma a Ɛho Hia wɔ Mpanyinyɛ Adeyɛ no mu

Nsakraeɛ a ɛwɔ atifi hɔ no yɛ ɔkwan a ɛkɔ so wɔ 'coatingdegradation→interfacial failure→substrate degradation.'PTFElosesinertnessand developscracks;glass fiberinterface no sɛe ansa na fiber nipadua no ankasa, ɛde kɔ delamination;ulti mately,theentirestructurebecomes brittle, powders,and disintegrates.Wɔhyɛ adwumayɛ mu hyew so, kwati ɔhyew a ɛbɛba a efi adidi ne onwini a ɛyɛ ntɛmntɛm mu, na wosiw nkitahodi a ɛne asikre ne dade a ɛka ho no ano a ebetumi ama wɔatumi abrɛ saa nhyehyɛe no mu onyin yi 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 nea ɛka ho ne PTFEhigh-temperature fabric, PTFEhigh-temperature tape,Teflonhigh -temperaturemeshbelts,seamlessbelting foradhesivepresses,single-sidedPTFEfabric,high-temperatureconveyorbelts,ne fiberglassfabric a ɛyɛ hyew kɛse—yɛsrɛ wo te nka sɛ wowɔ ahofadi sɛ wobɛfa akwan a edidi so yi so adi nkitaho:

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