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Kedu ka teepu na-eguzogide PTFE dị elu?

Nlele: 0     Odee: Saịtị Editọ Oge mbipụta: 2026-06-03 Mmalite: Saịtị

Jụọ ase

Mgbe ole A na-eji teepu nrapado dị elu nke PTFE na ngwa ndị na-agụnye esemokwu na-adịgide adịgide, ike njigide, ma ọ bụ ibu mgbe niile - dị ka ijide mkpuchi na ọkpọkọ na-ekpo ọkụ, ma ọ bụ ime ihe dị ka njikọ nhazi n'okpuru nrụgide na-adịgide adịgide - nsogbu zoro ezo nwere ike ịpụta: creep..

Ihe na-akpụ akpụ bụ nrụrụ ngwa ngwa, na-adịgide adịgide nke ihe dị n'okpuru ibu mgbe niile ka oge na-aga. N'ebe okpomọkụ dị n'ime ụlọ, teepu PTFE nwere ike iyi ihe kwụsiri ike. Ma na 200 Celsius ma ọ bụ ọbụna 260 Celsius - ụdị ọrụ ya na-ahụkarị - oyi akwa nrapado nwere ike ime ka ọ dị nro ma na-asọba, na PTFE mkpụrụ nwere ike ịnweta 'oyi na-asọ oyi' (na-arịgo n'okpuru ebe mgbaze ya).

Aokai PTFE anwalela omume na-akpụ akpụ gafee ọtụtụ puku awa. Edemede a na-akọwa ka esi enyocha ihe na-akpụ akpụ, ka oyi akwa na mkpụrụ nke ọ bụla na-atụnye ụtụ, yana nke ihe nrụpụta teepu na-eguzogide ihe kacha mma.

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Kedu ihe na-akpụ akpụ na teepu PTFE - akụkụ abụọ

Creep na-ezo aka na nzaghachi viscoelastic nke ihe. Ngwunye nrapado na mkpụrụ na-arụ ọrụ site na usoro dị iche iche, mana ha abụọ na-emetụta nrụrụ nrụrụ n'ozuzu ya.

Akụkụ

Usoro na-akpụ akpụ

Isi Ihe

Ngwunye oyi akwa (silicone PSA)

Viscous eruba n'okpuru nrụgide shiee na-adịgide adịgide

Njupụta crosslink, arọ molekụla, nkwado ndochi, ọkpụrụkpụ mkpuchi

Mkpụrụ (PTFE akwa mkpuchi)

Oyi eruba (polymer yinye sliding)

Nkwanye fiberglass, ngbanwe ndochi, ogo impregnation

Ihe ịma aka ọnọdụ ọrụ: teepu PTFE na-echekarị ibu ọrụ mgbe niile na 200-260 Celsius, karịa oke nke nrapado na-enwe mmetụta nrụgide. Nnwale okpomoku dị elu ka achọrọ.

Creep-Deformation-Schematic-Ihe osise.png

Njirimara Ngwunye Ngwunye - Silicone PSA

Imirikiti teepu nrapado PTFE na-anakwere adhesives na-enwe mmetụta nrụgide nke silicone, nke nguzogide oke okpomọkụ ya dabere na ihe ndị a:

Ihe kpatara ya

Mmetụta na Nguzogide Creep

Ntuziaka kacha mma

Crosslink njupụta

Ụdị crosslinking dị elu zuru oke netwọk na-agbanwe agbanwe → obere nrụrụ na-adịgide adịgide

Mmụba (ma ọ bụghị nke ukwuu nke na ihe mbido mbụ efuola)

Arọ molekụla & Ọdịdị

Ibu molekụla dị elu + vinyl/phenyl mgbanwe → emelitere ike njikọta ọnụ

MW dị elu, silicone phenyl maka oke okpomọkụ

Nkwado ihe eji eme ihe (dịka ọmụmaatụ, silica fumed)

Na-eme ka ike dị n'otu na-abawanye nke ukwuu, na-eme ka nlọghachi azụ na-agbanwe (dị ka rọba) vs. viscous eruba (dị ka chịngọm)

Tinye 5-15% ndochi ike

ọkpụrụkpụ mkpuchi mkpuchi

Okpokoro dị arọ na-enye ohere ịpụpụ shear → elu dị elu n'okpuru otu ibu

Jiri mkpuchi dị gịrịgịrị, otu maka ngwa mgbochi ihe

Mgbakwunye ihu

Njikọ na-adịghị mma na-akpata peeling nrapado site na mkpụrụ → mwepu nke ihu (ọ bụghị nnukwu ihe na-akpụ akpụ)

Jiri silicone primer, hụ na elu ya dị ọcha

Isi ihe ewepụrụ: Ihe nrapado silicone na-enweghị njikọ na-enwe ọdịda ngwa ngwa na oke okpomọkụ. Teepu na-egbochi ihe na-akpụ akpụ na-eji silicone-njupụta dị elu nke nwere ihe ndozi na mkpuchi dị mkpa na-achịkwa.

Aokai PTFE teepu okpomoku dị elu na-eji silicone PSA dị elu-crosslink-density nwere nkwado silica fumed. Nnwale nlegharị anya static static na 260 ° C (1000g ibu, 12.5 × 25 mm overlap) na-egosi> 150 awa ọdịda - dabara maka ịchọ ngwa ngwa na-ekpo ọkụ na-ekpo ọkụ mgbe niile.

Ngwa Static-Shear-Nnwale-ngwa-Schematic.png

Njirimara mkpụrụ - PTFE mkpuchi fiberglass vs. Ihe nkiri PTFE dị ọcha

A na-eji ihe abụọ bụ isi mee ihe maka teepu PTFE, na-arụ ọrụ dị egwu dị iche iche:

Ụdị mkpụrụ

Nguzogide mgbagha

Mechanism

Ihe nkiri PTFE dị ọcha

Ogbenye - na-adaba na a maara nke ọma mmiri oyi (oyi creep). Ọbụlagodi n'okpuru ibu dị nro dị n'okpuru ebe mgbaze (327°C), nnukwu nrụrụ na-enweghị mgbagha na-apụta n'ihi yinye molekụla.

Agbụ polymer → na-akwadoghị ike na-agafe ibe ya n'okpuru nrụgide na-adịgide adịgide

A na-etinye akwa fiberglass na PTFE (nke kachasị maka teepu okpomọkụ dị elu)

ọma Ọkpụkpụ fiberglass a kpara nke ọma na-egbochi eruba oyi PTFE nke

Nhazi ihe mejupụtara: eriri iko na-ebu ibu, PTFE na-enye enweghị osisi

Maka mkpụrụ agbakwunyere fiberglass, a na-ekpebi nguzogide creep site na:

Ihe kpatara ya

Mmetụta

Kpaa njupụta na ọkpụrụkpụ

Akwa njupụta, akwa dị arọ → modul tensile dị elu → obere creep

PTFE juru eju

Ihe mgbakwunye (fiberglass ntụ ntụ, graphite, carbon fiber) na-egbochi mmegharị molekụla PTFE → na-akwalite nkwụsi ike na nguzogide na-akpụ akpụ.

Ọgwụgwọ akwa & impregnation zuru oke

PTFE zuru oke na-ekpuchi faiba glaasi n'ụdị agbakwunyere ihe mejupụtara iji zere mwepu ihe nkesa interlayer. Ezughi oke impregnation → residual PTFE n'ime akwa meshes creeps n'okpuru ibu

Mkpụrụ ọkpụrụkpụ & flatness

Mpempe akwụkwọ ndị siri ike, nke na-adaghị adaba → nnukwu mgbanwe mgbanwe → ọbụnadị nkesa nrụgide → na-egbochi mkpụkọ akabeghị aka site na itinye uche na nchekasị.

Isi ihe ewepụrụ: Maka ngwa ndị na-ekpo ọkụ na-ebu oge niile, ejirila teepu ihe nkiri PTEF dị ọcha - ọ ga-arịgo n'enweghị mgbagha. Họrọ teepu PTFE na-eme ka fiberglass sie ike mgbe niile.

Mkpụrụ-ụdị-mmetụta-na-na-akpụ akpụ-nagide-ntụnyere.png

Nchịkọta - Otu esi agba mbọ hụ na nguzogide na-asọ oyi na teepu PTFE

Ihe kpatara ya

Ihe ị ga-achọ

Ihe ị ga-ezere

Ụdị nrapado

Silicone PSA dị elu-crosslink nwere njupụta silica fumed

silicone na-enweghị njikọ, acrylic PSA (na-akpụ akpụ na obere okpomọkụ)

Ọkpụrụkpụ nrapado

Mkpuchi nke dị mkpa, otu (lekwasịrị anya 0.02-0.05 mm)

Okpokoro nrapado siri ike (> 0.08 mm) - na-enye ohere ịpụpụ ncha

Ụdị mkpụrụ

Fiberglass mesiri ike PTFE

Ihe nkiri PTFE dị ọcha (oyi creeps)

Substrate mma

Akwa akwa njupụta dị elu, nke etinyere n'ime ya nke ọma, na-agbanye ya nke ọma

Akpara rụrụ arụ, impregnation ezughị oke, nke agbakọchara

Njikọ ihu

Ọgwụ mbụ n'etiti nrapado na mkpụrụ

Ọ dịghị primer → nrapado peeling kama nnukwu ihe na-akpụ akpụ

Nkwanye bara uru: Maka ngwa okpomọkụ dị elu na-ebu mgbe niile (dịka ọmụmaatụ, mkpuchi ọkpọkọ n'okpuru esemokwu, na-ejide ihe ndị dị na platen ekpo ọkụ), rịọ data static shiee na ọnọdụ okpomọkụ na ibu gị. Ezipụta teepu PTFE na-agbanye fiberglass, ọ bụghị teepu ihe nkiri. Nyochaa na nrapado bụ silicone-njupụta dị elu nke nwere njupụta.

Na nchịkọta , nguzogide na-akpụ akpụ nke teepu nrapado dị elu nke PTFE n'okpuru ibu ogologo oge na-adabere na ihe abụọ. Ngwunye PSA silicone ga-enwerịrị njupụta crosslink dị elu, na-eme ka ihe ndozi (silica fumed), na mkpuchi edo dị gịrịgịrị iji guzogide viscous eruba. Mkpụrụ ahụ ga-abụrịrị PTFE nke fiberglass na-emesi ike - ihe nkiri PTFE dị ọcha ga-enweta oyi na-adịghị agbanwe agbanwe na okpomọkụ dị elu. Ọkpụkpụ fiberglass na-ebu ibu ma na-eme ka ihe mejupụtara ya kwụsie ike n'akụkụ.

Mgbe ị na-ahọrọ teepu PTFE maka ngwa okpomọkụ dị elu mgbe niile, ọ dịghị mgbe ị ga-edozi teepu ihe nkiri PTFE dị ọcha. Na-arịọ mgbe niile maka data shiee static na ọnọdụ okpomọkụ gị na-arụ ọrụ. Ma cheta: njikọ dị n'etiti nrapado na mkpụrụ okwu dịkwa mkpa - ihe ndị a na-eme ka ọ bụrụ ihe mbụ na-egbochi nkwụsị ihu.

Chọrọ teepu PTFE na-akpụ akpụ maka ibu dị elu mgbe niile? Aokai PTFE na-enye teepu mgbake fiberglass nwere silicone PSA dị elu crosslink-density, nke 260°C static shear test kwadoro. Kpọtụrụ anyị maka ibu gị, ọnọdụ okpomọkụ na oge ị chọrọ.

Edemede nyere site Ụgwọ nke ụlọ ọrụ Jiangsu Aokai New Materials Technology Co., Ltd.

Ọ bụrụ na ịchọrọ nkọwa ndị ọzọ, ntuziaka ngwa, na ngwọta ahaziri maka ahịrị ngwaahịa anyị zuru oke gụnyere akwa PTFE dị elu, teepu PTFE, eriri eriri PTFE, eriri fuser na-enweghị ntụpọ, akwa PTFE nwere otu akụkụ, eriri ebu na-eguzogide okpomọkụ na akwa fiberglass na-eguzogide , nweere onwe gị ịkpọtụrụ anyị:

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