Sɛ́ adwumayɛfo fibea a wɔyɛ PTFE ntama a ɛyɛ hyew kɛse no, Jiangsu Aokai New Materials bɛkyerɛkyerɛ nea ɛde mpaapaemu ba wɔ ahwehwɛ nhama ntama mu bere a wɔde PTFE (polytetrafluoroethylene) emulsion ahyɛ mu akyi. Eyi yɛ adeyɛ asɛm a ɛtaa ba wɔ nneɛma a wɔde afrafra a wɔyɛ mu, a ɛtaa ba bere a wɔreyow (woyi nsu ne nneɛma a ɛwɔ soro no fi hɔ) anaasɛ wɔreyɛ sintering wɔ ɔhyew a ɛkɔ soro mu (PTFE asinasin a wɔpene ma ɛbɛyɛ film a ɛkɔ so).

1. Ɔhyew Ntrɛwmu Nsusuwii a Ɛnhyia Kɛse

Eyi ne honam fam ade titiriw a ɛde ba.

Nsonsonoe kɛse wɔ ɔhyew ntrɛwmu nsusuwii mu wɔ ahwehwɛ nhama ne PTFE ntam:ahwehwɛ nhama no linear ntrɛwmu nsusuwii bɛyɛ 5×10−6/°C ,bere a PTFE de no bɛyɛ 100×10−6/°C kosi 200×10−6/°C  (bɛyɛ sɛ ahwehwɛ nhama mmɔho 20).

Wɔ onwini mu (efi sintering hyew a ɛyɛ bɛyɛ 380°C–400°C so kosi dan mu hyew so), PTFE so tew kɛse koraa sen ahwehwɛ nhama nhyehyɛe no. Esiane sɛ ahwehwɛ nhama ntama yɛ adwuma sɛ nnompe a ɛyɛ den nti, PTFE siw ano bere a ɛtwetwe no, na ɛde ɔhyew a ɛtwetwe nneɛma a ɛwɔ mu no mu nhyɛso kɛse ba. Sɛ saa nhyɛso yi boro PTFE sini no ahoɔden a ɛtwetwe anaasɛ ahoɔden a ɛwɔ PTFE ne ahwehwɛ nhama ntam no so a, mpaapaemu ba ma adwennwen no fi hɔ.

2. Nneɛma a Wɔde Yɛ Dry ne Sintering a Wɔhwɛ So a Ɛmfata

Ɔhyew a ɛwɔ ade a wɔde ahyɛ mu no mu no nya mpaapaemu so nkɛntɛnso tẽẽ:

·  Ɔhyew a ɛyɛ ntɛmntɛm dodo : Titiriw wɔ bɛyɛ 100°C (nsuo a ɛyɛ nwini ntɛmntɛm) ne 200°C–250°C (sufactants a ɛporɔw wɔ emulsion no mu ne crystalline nsakraeɛ beaeɛ ansa na PTFE sintering). Ɔhyew a ɛba ntɛmntɛm no de emu nhyɛso ne mframa a efi nnuru a wɔde siw ano ne nneɛma a wɔde ka ho a ɛyɛ hyew ntɛm ara no ba, na ɛma nea wɔde kata so no mu paapae.

·  Nwini ntɛmntɛm dodo : Mframa a atwa yɛn ho ahyia mu a wɔde wɔn ho hyɛ mu tẽẽ ma ɛyɛ nwini ntɛmntɛm wɔ sintering akyi no de nhyɛso a emu yɛ den ba ntɛm ara esiane ɔhyew mu nsonsonoe kɛse nti, a ɛma ntama mu mpaapaemu pa ba ntɛm ara.

·  Sintering temperature a ɛkɔ soro dodo anaasɛ sintering bere tenten dodo : Eyi ma PTFE molecule mu duru sɛe ne nsu a ɛboro so, na ɛma ade no yɛ mmerɛw sɛ ɛbɛpaapae wɔ nhyɛso ase.

3. Nsɛm a ɛwɔ Impregnation Process ne Emulsion Concentration mu

Nsuo a wɔde ahyɛ mu no mu duru, ɛyɛ pɛ ne emu dɔ a ɛkɔ mu no nya mpaapaemu nkateɛ so nkɛntɛnsoɔ tẽẽ:

·  Excessively thick single impregnation layer : Wɔ akyi a wodi thickness anaasɛ production efficiency, wɔde PTFE coating a ɛyɛ den dodo gu so wɔ ɔkwan biako so. Wɔ drying ne sintering mu no, ade a ɛyɛ den a wɔde kata so no wɔ ɔkwan tenten a wɔfa so yi solvent na ɛkɔ volumetric shrinkage kɛse mu (PTFE emulsion taa wɔ solid content a ɛyɛ bɛyɛ 60%, a ɛkyerɛ sɛ ɛsɛ sɛ woyi bɛyɛ 40% nsuo fi mu), a ɛtaa ma ɔfasuo no mu paapae.

·  Uneven impregnation : Localized dodo PTFE buildup anaasɛ uneven emulsion kyekyɛ wɔ ntama no ani de concentrated shrinkage nhyɛso.

·  Emulsion a ɛnkɔ mu a ɛnnɔɔso : Sɛ wɔannye glass fiber ntama no dewax anaasɛ wɔamfa ne ho anhyɛ mu yiye a, PTFE emulsion ntumi nkɔ fiber bundles mu koraa na ɛyɛ 'skin film' a ɛwɔ soro nkutoo. Saa sini yi wɔ anchoring a ɛyɛ mmerɛw wɔ substrate no ho na ɛtaa tetew anaasɛ ɛpaapae bere a wɔayɛ no hyew no.

4. Nneɛma a Ɛfa Substrate Ho

·  Unde-waxed glass fiber cloth : Glass fiber ntama no kura nneɛma a ɛma ɛyɛ kɛse (paraffin, epoxy, ne nea ɛkeka ho) a efi nwene kwan no mu. Sɛ wɔannye dewaxing a ɛwɔ ɔhyew a ɛkorɔn mu anaasɛ nnuru nsiesie ansa na wɔde ahyɛ mu a, saa nneɛma a nkwa wom yi yɛ carbonize na ɛyɛ hyew bere a wɔde sintering a edi hɔ no yɛ adwuma no, na ɛma mframa a ɛpaapae ade a wɔde kata so no anaasɛ ɛma nkitahodi a ɛda PTFE ne ahwehwɛ nhama ntam no yɛ mmerɛw, na ɛde mpaapaemu ba.

·  Ahwehwɛ nhama ntama nhyehyɛe ne ne kɛse : Ahwehwɛ nhama ntama a ɛyɛ den na ɛyɛ den (te sɛ satin ntama a ɛyɛ den) da rigidity a ɛkorɔn ne ahosodi a emu yɛ den adi wɔ PTFE shrinkage so. Saa bere yi nyinaa, nhama a emu dɔ a ɛda nhama a wɔaboaboa ano ntam no taa ma adwennwen no yɛ kɛse na ɛpaapae wɔ nhama no anoano bere a ɛreyow no.

Nsɛm a ɛwɔ atifi hɔ no yɛ nea Jiangsu Aokai New Materials Technology Co., Ltd. na ɛde mae.

Sɛ wopɛ parameters a ɛkɔ akyiri, application scenarios ne customized solutions of our full product range — a PTFE high-temperature ntama, PTFE high-temperature tape, PTFE high-temperature mesh belt, seamless belts ma bonding mfiri, biako-afã PTFE ntama, high-temperature resistant conveyor belts, high-temperature resistant glass fiber ntama ne afoforo ka ho nneɛma a ɛfa ho — yɛsrɛ sɛ ntwentwɛn wo nan ase sɛ wobɛka yɛn ho asɛm:

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