Ozone Aging Resistance a PTFE Ntama a Ɛyɛ Ɔhyew a Ɛkorɔn

Jiangsu Aokai New Materials, adwumayɛfo a wɔyɛ PTFE ntama a ɛyɛ hyew kɛse ne fibea adwumayɛbea, ma wo nnianim asɛm a ɛkɔ akyiri. Ntama a wɔde fiberglass adura ho a wɔde polytetrafluoroethylene (PTFE) akata so no da nnuru a ɛnyɛ adwuma yiye adi na mpɛn pii no ɛma ozone onyin a ɛko tia onyin a ɛda nsow. Nanso, ɛnyɛ nea ozone a ɛporɔw no ntumi nsɛe no koraa, na ozone dodow, baabi a ɛhɔ yɛ hyew, bere a ɛkɔ so de di dwuma ne nneɛma afoforo a efi akyi no nya ne dwumadi nyinaa so nkɛntɛnso kɛse.

Esiane ne molecule nhyehyɛe soronko nti, PTFE da ozone a ɛko tia denneennen adi wɔ tebea horow a wɔahyɛ da ayɛ mu. Carbon-fluorine (CF) nkitahodi a fluorine wom koraa no hoahoa ne ho sɛ ɛwɔ nkitahodi ahoɔden a ɛkorɔn yiye a ɛyɛ bɛyɛ 485 kJ/mol. Saa bere yi nyinaa, ne molecule nhyehyɛe a ɛyɛ nkuruwankuruwa no yɛ fluorine atɔm ahobammɔ kyɛm a ɛyɛ den, na ɛmma nneɛma a ɛyɛ den te sɛ ozone ntumi ntow nhyɛ carbon-carbon (CC) molecule nkɔnsɔnkɔnsɔn titiriw a ɛwɔ mu no so.

Ne nyinaa mu no, ozone betumi asakra PTFE no ani su kɛse na akanyan nsakrae ahorow a ɛba wɔ nnuru ne nipadua mu. Nhwehwɛmu ahorow ada no adi sɛ PTFE a wɔde ozone di dwuma no wɔ friction coefficient a ɛboro nea ɛwɔ mframa a ɛteɛ mu no so mmɔho abiɛsa, a agyiraehyɛde ahorow a ɛda adi pefee a ɛkyerɛ sɛ ɛho asɛe ka ho. Eyi fi ozone a ɛma asase ani oxidation, molecule bond a ɛpaapae ne nneɛma a ɛyɛ mmerɛw na ɛde ba titiriw.

Sɛ wɔde ozone di dwuma bere tenten, titiriw wɔ adwumayɛ tebea horow a emu yɛ den te sɛ ɔhyew a ɛkɔ soro ne ozone dodow a ɛkɔ soro mu a, PTFE ntama a ɛyɛ hyew kɛse no bɛkɔ so nkakrankakra afi ɔsɛe a ɛwɔ afiri ketewaa mu akɔ adwumayɛ mu huammɔdi a ɛyɛ kɛse mu, a huammɔdi pɔtee bi bɛda adi sɛnea edidi so yi:

Molekyule nkɔnsɔnkɔnsɔn a ɛpaapae ne nea ɛsɛe Ozone bubu PTFE molecule nkɔnsɔnkɔnsɔn a ɛwɔ CC no mu na ɛma molecule asinasin nketenkete te sɛ carbon tetrafluoride (CF4) ne carbonyl fluoride (COF2). Eyi ma molecule mu duru so tew na ɛma ade no adwumayɛ sɛe titiriw.

Surface cracking and embrittlement Ɛyɛ onyin a ɛyɛ nwonwa sen biara. Ade no hwere sɛnea ɛtumi dannan ne ho wɔ soro na ɛma mpaapaemu a ɛhyerɛn te sɛ nhama ba wɔ nhyɛso ase, a ɛne ozone mu mpaapaemu. Ntama no yɛ den na ɛyɛ mmerɛw, na onyin a emu yɛ den bɛma abubu na asɛe ne dan no bio.

Mfiri su a ɛso tew Nneɛma a ɛsɛe no kɔ so tew tensile ahoɔden, elongation wɔ break, elasticity ne core mfiridwuma nsɛnkyerɛnne afoforo. Akyiri yi surface pulverization, peeling ne thickness reduction bɛma wear resistance ne structure stability ayɛ mmerɛw bio.

Nneɛma a ɛwɔ soro a ɛsɛe no Nnuru a ɛma ɔdan no sɛe no sesa nneɛma atitiriw te sɛ ɔfasuo ahoɔden ne nsuo a ɛyɛ nwini. Mpaapaemu nketenkete ne abon a ozone a ɛporɔw ba no bɛtrɛw wɔ ne kɛse mu, na ɛbɛma mfitiase nsɔano ne tew a wɔtew wɔn ho no ayɛ mmerɛw kɛse.

Ɛnyɛ ade a wɔde gyina so no ankasa nkutoo na ɛkyerɛ sɛnea PTFE ntama a ɛyɛ hyew kɛse no tumi gyina ozone ano. Ɔhyew a atwa yɛn ho ahyia, onyin a wɔaka abom ne abɔnten tebea afoforo nso di dwuma titiriw wɔ ne som nkwa nna mu.

Ɔhyew a ɛkɔ soro ma ozone sɛe ntɛmntɛm kɛse. Wɔ ɔhyew a ɛkɔ soro tebea horow mu no, ozone a ɛyɛ oxidation a emu yɛ den no ma PTFE molecule nkɔnsɔnkɔnsɔn a ɛsɛe no mu yɛ den. Enti, PTFE nneɛma a wɔde yɛ adwuma bere tenten no so tew kɛse fi 260°C wɔ mframa a wɔtaa de di dwuma mu kosi 200°C–220°C wɔ ozone ne mframa a ɛyɛ den a ɛma oxidizing tebea mu.

Nkɛntɛnso a ɛma onyin a ɛyɛ adwuma bom  wɔ ozone ne ultraviolet mframa ntam. Wɔ abɔnten so tebea horow mu no, UV mframa ne ozone a wɔaka abom no ma ɔsɛe ade a wɔahyɛ no den a ɛboro ade biako pɛ so koraa.

Nea ɛka ho no, ɛsono sɛnea nneɛma no te wɔ nea ɔyɛe no mu. Nsonsonoe a ɛwɔ akwan a wɔfa so yɛ nneɛma, nea wɔde kata so no mu duru ne sɛnea wɔayɛ no (te sɛ nea wɔde anti-oxidant stabilizers aka ho) bɛma nsonsonoe a ɛda adi pefee aba wɔ ozone a ɛko tia bere tenten mu wɔ PTFE ntama a ɛyɛ hyew kɛse mu nneɛma ahorow mu.

Akwan a Etu mpɔn a Wɔfa so Ma Ozone Onyin a Wɔko tia no Atu mpɔn

1. Fa nnuru a ekum ɔyare mmoawa a ɛyɛ adwuma yiye ne nea ɛma hann gyina PTFE nhyehyɛe no mu na ama wɔakyere free radicals na ama oxidative asɛe no akyɛ.

2. Fa aduru a wɔayɛ no sɛnea wɔpɛ sɛ wɔyɛ nsakrae wɔ soro no tom na ama woanya ahobammɔ a ɛyɛ den na ama ahoɔden a ɛko tia mframa a ɛma oxidizing erosion no yɛ kɛse.

3. Ma tebea horow a wɔde di dwuma ankasa no nyɛ papa: hwɛ adwumayɛ mu hyew a ɛba fam sen 200°C so, na kwati bere tenten som wɔ mmeae a ozone a ɛdɔɔso ne mframa a ano yɛ den a ano yɛ den wɔ hɔ.

Tɔfabɔ

PTFE ntama a ɛyɛ hyew kɛse yɛ adwuma yiye na ɛyɛ papa wɔ dan mu hyew ne ozone a ɛba fam mu. Nanso, oxidative degradation, surface cracking, embrittlement ne adwumayɛ a ɛkɔ fam koraa bɛba wɔ ɔhyew a ɛkɔ soro, ozone kɛse anaa UV-coupled hardsh environments. Nneɛma a atwa yɛn ho ahyia sohwɛ a ntease wom ne nneɛma a wɔsakra no betumi ama onyin ayɛ brɛoo wɔ ɔkwan a etu mpɔn so na ama ade no nkwa nna a ɛtra hɔ kyɛ no atrɛw kɛse.

Atifi hɔ mfiridwuma ho nsɛm no yɛ nea Jiangsu Aokai New Materials Technology Co., Ltd. na ɛde mae.

Sɛ wuhia mfiridwuma parameters foforo, application ano aduru ne customized services ma yɛn full-range nneɛma, a PTFE high-temperature ntama, PTFE high-temperature adhesive tape, PTFE mesh conveyor belt, seamless bonding machine belt, biako-afã fluorine-coated ntama, high-ɔhyew resistant conveyor belt ne ɔhyew a ɛkorɔn fiberglass ntama ka ho, yɛsrɛ wo te nka sɛ wowɔ ahofadi sɛ wobɛka ho yɛn:

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