Mfomso ahorow a ɛtaa ba bere a PTFE Ntama a Ɛyɛ Ɔhyew a Ɛkɔ So Yɛ Den – ne Sɛnea Wosiw Ano

Drying yɛ ade titiriw a ɛsɛ sɛ woyɛ PTFE ntama a ɛyɛ hyew a ɛkorɔn a wɔyɛ. Bere a wɔde PTFE emulsion ahyɛ fiberglass ntama mu awie no, ɛfa fononoo a wɔde dry mu mu yi nsu na ɛde PTFE asinasin no frafra mu ma ɛyɛ ade a ɛkɔ so kata so.

Nanso, drying kwan no betumi de sintɔ ahorow pii aba – efi soro mpaapaemu ne pinholes so kosi delamination ne warpage so. Saa sintɔ ahorow yi fi nkitahodi a ɛyɛ den a ɛda emulsion su ahorow, substrate nhyehyɛe, ne drying parameters ntam.

Aokai PTFE ama drying akwan a ɛyɛ papa wɔ nneɛma pii mu. Saa akwankyerɛ yi kyerɛkyerɛ sintɔ du a ɛtaa ba wɔ drying mu, nea ɛde ba, ne ano aduru a mfaso wɔ so mu.

Coating Cracking ne Crazing

Nsɛnkyerɛnne: Mpaapaemu nketenkete anaa ɛtrɛw a ɛtrɛw wɔ ntama no ani; wɔ tebea horow a emu yɛ den mu no, ade a wɔde kata so no yi fi hɔ ma ɛyɛ mmerɛw.

Nneɛma a ɛde ba no ntini:

• Ahoɔhare a ɛma ɛyow ntɛmntɛm dodo – nsu a ɛyow ntɛmntɛm wɔ soro no yɛ honam ani a ɛyɛ dry layer. Nsu a ɛyɛ hyew a ɛwɔ mu no bubu fa sini a ɛwɔ soro no mu anaasɛ ɛde nhyɛso a emu yɛ den a ɛma ɛtwetwe no ba.

• PTFE solid content a ɛkorɔn – ɛma volume shrinkage kɛse ba bere a particle boaboa ano.

• Ɔhyew a ɛkɔ soro dodo a ɛma ɛyow anaa mframa a ɛyɛ hyew a ano yɛ den dodo – ɛde honam ani hwɛbea ba bere a emu fã no da so ara yɛ nea ɛnyow, ɛma nhyɛso no yɛ kɛse na ɛkanyan mpaapaemu.

Ano aduru:

• Fa gradient drying profile di dwuma: ɔhyew a ɛba fam wɔ beae a edi kan no, na ɛkɔ soro nkakrankakra.

• Tew ahoɔden a ɛyow mfiase no so (ɔhyew ne mframa a ɛsen).

• Optimize emulsion solids content – ​​kwati solids a ɛkɔ soro dodo.

Coating Migration (Electrophoretic Tukɔ) .

Nsɛnkyerɛnne: Resin pii wɔ ntama no ani na ɛte sɛ nea ɛhyerɛn, bere a resin a ɛnnɔɔso no hyɛ nhama a ɛwɔ mu no ntam kwan no ma. Sɛ wɔhwɛ sɛnea wɔatwa no akuturuku no da ɔdan bi a ɛnyɛ pɛpɛɛpɛ adi a ɛwɔ akyi a ɛyɛ den na emu nkata so kakraa bi.

Nneɛma a ɛde ba no ntini:

• PTFE nketenkete a ɛyɛ fɛ no tu kɔ soro ka nsu a ɛsen ho bere a nsu no yɛ hyew kɔ abɔnten no.

• Ɛyow brɛoo anaasɛ ɔhyew a ɛwɔ ɔfã biako no ma saa atutra yi yɛ kɛse.

Ɔhaw a ɛbɛtumi aba:

• Adhesion a ɛyɛ mmerɛw a wɔde kata so.

• Mfiridwuma a etwa to adwumayɛ ne ahoɔden a ɛtra hɔ kyɛ asɛe.

Ano aduru:

• Ma mfitiase drying rate nkɔ soro na ama asinasin no ntɛmntɛm ansa na atutra aba.

• Fa ɔhyew a ɛwɔ afã abien anaa mframa a ɛsen no kyekyɛ a eye di dwuma.

• Susuw emulsions a ɛyɛ den kɛse ho na ama nneɛma nketenkete no atumi akɔ baabiara.

Pinholes ne Nsuo a Ɛyɛ Nsuo

Nsɛnkyerɛnne: Tokuru nketenkete a ɛyɛ kurukuruwa anaasɛ ahurututu agyiraehyɛde a ɛkɔ soro wɔ ade a wɔde kata so no ani.

Nneɛma a ɛde ba no ntini:

• Microbubbles a aka wɔ emulsion a wɔansiesie no mu.

• Mframa a akɔhyɛ fiberglass ntama mu ntini mu no trɛw na ɛguan bere a ɛyɛ hyew no.

• Nsu a ɛbobɔ denneennen na ɛyɛ hyew no bubu fa film a wɔde kata so no mu.

• Emulsion a ɛnyɛ den pii, substrate a ɛnyɛ den, anaasɛ ɔhyew a ɛkɔ soro ntɛmntɛm bere a ɛreyow no nyinaa ma pinhole mu sintɔ ahorow no yɛ kɛse.

Ano aduru:

• Degas emulsion no ansa na wɔde ahyɛ mu.

• Fa defoamer di dwuma na hwɛ hu sɛ fiberglass no bɛhyɛ nsu yiye.

• Di ɔhyew a edi kan a ɛbɛyow no so na woakwati sɛ wobɛnoa denneennen.

• Ma emulsion viscosity nkɔ soro kakra na ama woatumi ako atia bubble rupture.

White Spots, Hazing, ne Chalking a Ɛyɛ Fɛ

Nsɛnkyerɛnne: Mpɔtam hɔ anaa ne nyinaa mu a ɛyɛ sum fitaa a ɛwɔ ade a wɔde kata so no so; powder nkae no tetew fi soro wɔ tebea horow a emu yɛ den mu.

Akwan abien a ɛsono emu biara:

Nsonsonoe fitaa / hazing: .

• Ultra-fast dry ma microcracks a ɛbɔ hann pete.

• Nneɛma a ɛma nneɛma yɛ adwuma wɔ soro no tu kɔ baabi foforo na ɛboaboa ano wɔ asase ani, na ɛma nsu a ɛwɔ soro no yɛ fitaa.

• Sɛ ɛnyow koraa a, ɛma nsu a aka na ɛyɛ nkekae fitaa a ɛte sɛ nsu agyiraehyɛde.

Chalking a wɔde kyerɛw:

• Ɔhyew a ɛkɔ soro dodo anaasɛ mframa a ɛyɛ hyew a ɛbɔ tẽẽ no mma PTFE nketenkete a ɛwɔ soro no ntumi nfrafra nkɔ sini a wɔaka abom mu, na ɛma powder a ɛnyɛ den.

• Emulsion a entumi nnyina betumi abubu na ayɛ agglomerate ayɛ powder akuwakuw bere a ɛreyow no.

Ano aduru:

• Kwati ɔhyew a ɛkɔ soro dodo a ɛbɛma wo ho ayɛ hyew.

• Hwɛ sɛ sintering a edi mũ – ɛnyɛ drying kɛkɛ.

• Control surfactant dodow a ɛwɔ emulsion formulation no mu.

Yellowing ne Coking a Wɔde Yɛ Adwuma

Nsɛnkyerɛnne: Ade a wɔde kata so no dan kɔkɔɔ, na mpo ɛwɔ ɔhyew agyiraehyɛde a ɛyɛ bruu.

Nneɛma a ɛde ba no ntini:

• Ɔhyew a ɛkɔ soro dodo a ɛma ɛyow anaasɛ bere tenten a ɛtra hɔ no kanyan ɔhyew mu oxidative decomposition of surfactants, thickeners wɔ emulsion, ne residual fiberglass sizing agents.

• PTFE ankasa wɔ ɔhyew a ɛko tia yiye, nanso nneɛma a wɔde ka ho a ɛboa no ntumi nnyina ɔhyew a ano yɛ den ano.

• Infrared ɔhyew a ɛnyɛ pɛpɛɛpɛ ma mmeae a ɛhɔ yɛ hyew dodo ba.

Ano aduru:

• Fa drying temperature to drying threshold a ɛwɔ additives nyinaa mu (mpɛn pii no <380°C ma PTFE sintering, nanso kwati sɛ ɛbɛkɔ so atra hɔ >350°C).

• Hwɛ sɛ ɔhyew a ɛyɛ pɛ wɔ fononoo no trɛw mu.

• Fa nneɛma a wɔde ka ho a ɛho tew kɛse na ɛyɛ hyew di dwuma.

H2: 6. Coating a Wɔma So ne Delamination

Nsɛnkyerɛnne: Ade a wɔde kata so no tetew fi fiberglass substrate interface no ho, wotumi yiyi mu wɔ nkratafa akɛse mu anaasɛ wotumi yi fi mu denam petepete so.

Nneɛma a ɛde ba no ntini:

• Drying shrinkage stress boro interfacial bonding tumi so.

• Fiberglass a ɛho ntew anaasɛ wɔansiesie no ma emulsion no ntew yiye.

• Ntwitwiridii a ɛnteɛ a efi ɔfã biako a ɛyow ntɛmntɛm mu.

• Resin a ɛso tew wɔ substrate interface a ɛnam coating migration so ba no yɛ ɔhye a ɛyɛ mmerɛw.

Ano aduru:

• Hwɛ sɛ wobɛhohoro soro yiye na woadi kan ayɛ fiberglass ho adwuma (sɛ nhwɛso no, ɔhyew a wobɛhohoro de ayi ne kɛse afi hɔ).

• Fa silane coupling agents anaa adhesion promoters di dwuma.

• Yɛ drying profile no yiye na ama shrinkage stress so atew.

• Siw atutra a ɛboro so ano.

Orange Peel, Leveling a Ɛnyɛ Den, ne Rough Surface

Nsɛnkyerɛnne: Nneɛma a ɛnyɛ pɛpɛɛpɛ te sɛ orange-peel anaasɛ ne nyinaa yɛ matte rough surface a enni gloss.

Nneɛma a ɛde ba no ntini:

• PTFE emulsion no leveling adwumayɛ a enye.

• Ɔhyew a ɛkɔ soro dodo a edi kan a ɛyow no ma sini a ɛwɔ soro no yɛ kɛse ntɛmntɛm na eyi tumi a ɛma ɛyɛ pɛ no fi hɔ.

• Mframa a ɛyɛ hyew a ɛsen tẽẽ no haw ade a wɔde kata so a ɛyɛ nsu no.

• Ntama a wɔanwene no nwene a ɛda nsow dodo no ntumi mfa nneɛma a ɛyɛ tratraa a wɔde kata so nkata so koraa.

Ano aduru:

• Fa mfitiaseɛ drying temperature a ɛba fam di dwuma – ma bere ma leveling.

• Tew mframa a ɛyɛ hyew ahoɔhare so wɔ beae a edi kan a ɛyow no.

• Fa ntama a ɛyɛ tratraa pii gu so sen sɛ wode bɛhyɛ biako a ɛyɛ den.

• Sɛ ɛho hia a, fa nnuru a ɛma nneɛma yɛ mmerɛw di dwuma.

Ɔko ne Shrinkage Deformation

Nsɛnkyerɛnne: Ntama no ani a ɛnyɛ pɛpɛɛpɛ, ne nsensanee a ɛyɛ kurukuruwa, na ɛda adi sɛ ne tɛtrɛtɛ so tew.

Nneɛma a ɛde ba no ntini:

• Fiberglass ntama a ɛyɛ hyew a ɛtwetwe wɔ ɔhyew a ɛyɛ nwini ne nea ɛyɛ nwunu a ɛsesa mu, titiriw bere a warp/weft nhyɛso a ɛmfata no.

• Mismatched ɔhyew shrinkage rates ntam coating ne substrate.

• Ɔfã biako a ɛyow anaasɛ ɔhyew a ɛkɔ soro kɛse ma ntama no afã abien no so tew wɔ ɔkwan soronko so.

Ano aduru:

• Kura warp/weft tension a ɛkari pɛ mu bere a woreyow no.

• Fa ɔhyew a ɛwɔ afã abien di dwuma na ama shrinkage no ayɛ pɛ.

• Di kan twitwa fiberglass ntama no so ansa na wode akata so.

Surface Dry Nanso Mfinimfini Nsu – Roll Blocking

Nsɛnkyerɛnne: Sɛ woka ade a wɔde kata so no a, ɛte sɛ nea ɛyɛ nwunu nanso ɛkora nsu a ɛwɔ mu no so. Nneɛma a wɔde akata so no bata wɔn ho wɔn ho ho bere a wɔabɔ wɔn ho ban awie no, na dede a ano yɛ den a ɛma wɔpepa anaasɛ nea wɔde akata so no sɛe bere a wɔrebue mu no.

Nneɛma a ɛde ba no ntini:

• Ɔhyew a ɛkorɔn a ɛma ɛyow a ɛne bere tiaa a ɛtra hɔ no bom yɛ honam ani honam ani hwɛbea a esiw nsu a ɛyɛ hyew a ɛkɔ mu no kwan.

• Onwini a ɛnnɔɔso bere a woafi fononoo a wɔde dry no mu akyi no ma ɔhyew a aka na ɛma nneɛma a ɛma nneɛma yɛ hyew no yɛ mmerɛw.

• Sɛ ɛnyow koraa a, ɛma nsu a aka ne nneɛma a wɔde ka ho ma ɛyɛ sini a ɛyɛ nnam.

Ano aduru:

• Fa ɔhyew a ɛba fam a ɛma ɛyow di dwuma a bere a ɛtra hɔ kyɛ – ma nsu no nkɔ nkakrankakra.

• Hwɛ sɛ mframa a ɛfata bɛkɔ mu na wɔayi nsuo afiri mu wɔ fononoo no mu.

• Ma onwini a ɛdɔɔso ansa na woabɔ wo ho ban (target <40°C).

Selvedges a ɛyɛ den ne Coating a ɛnyɛ pɛpɛɛpɛ

Nsɛnkyerɛnne: Nneɛma a wɔde kata ntama no anoano no yɛ kɛse pefee sen mfinimfini fã no, anaasɛ nsonsonoe a ɛda ntama no mu duru mu a ɛyɛ nsensanee da adi wɔ nhama no nyinaa so.

Nneɛma a ɛde ba no ntini:

• Nsuo a ɛkɔ ntɛmntɛm wɔ selvedges no ma emulsion boaboa ano na ɛtu kɔ anoano berɛ a ɛreyow – 'kɔfe ring effect.'

• Mframa a ɛyɛ hyew a wɔkyekyɛ no pɛpɛɛpɛ no ma ɛsono sɛnea ɛyow.

Ano aduru:

• Ma mframa a ɛsen no pɛpɛɛpɛ wɔ ntama no trɛw nyinaa mu nkɔ anim.

• Fa edge-zone temperature control anaa baffles di dwuma na ama anoano a ɛyow no so atew.

• Siesie ɔkwan a wɔfa so kata so no na ama woatumi de nea ɛyɛ pɛ pii a ɛyɛ nsu film thickness adi dwuma.

Nsɛm a wɔaboaboa ano – Key Drying Parameters a ɛsɛ sɛ wodi so

Aokai PTFE de ahwɛyiye di drying parameters so – temperature profile, mframa a ɛsen, bere a wɔde tra hɔ, ne tension – ma ɛyɛ PTFE ntama a saa sintɔ ahorow yi nni mu. Wɔ amanne coating applications, yebetumi optimized drying tebea horow ma wo pɔtee product ahwehwɛde.

Atifi hɔ nsɛm no yɛ nea wɔde ama Jiangsu Aokai Nneɛma Foforo Mfiridwuma Co., Ltd.

Sɛ wopɛ sɛ wusua pii fa nsɛm a ɛkɔ akyiri, dwumadie tebea ne ano aduru a wɔayɛ ama yɛn nneɛma nyinaa ho a, a PTFE ntama a ɛyɛ hyew a ɛkorɔn, PTFE teapɔn a ɛyɛ hyew kɛse, PTFE mesh conveyor belts, seamless bonding machine belts, PTFE ntama a ɛwɔ afã biako, conveyor belts a ɛko tia ɔhyew a ɛkorɔn ne ɔhyew a ɛkorɔn ka ho fiberglass ntama, yɛsrɛ sɛ wo ne yɛn nni nkitaho:

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