Teepu okpomọkụ dị elu PTFE na-ejikọta mkpụrụ PTFE bioc dakọtara na nrapado silicone gwọrọ platinum. Ihe ndị dị mkpa: ISO 10993 kwekọrọ (enweghị cytotoxicity, mmetụta ma ọ bụ mgbakasị ahụ), na-eguzogide ọgwụ mgbochi ugboro ugboro (steam/EO/gamma), 260°C na-eguzogide okpomọkụ. Mkpachapụ anya dị oke mkpa: agabigala 260°C (uzu ọkụ na-egbu egbu karịa 300°C), irradiation gamma nwere ike ịkpata mgbakasị ahụ, kwado ụzọ ịgba ọgwụ mgbochi ọrịa, wee rịọ akwụkwọ nnabata zuru oke (akụkọ ISO 10993, MSDS, data ịka nká). Ọ bụghị maka ọbara ozugbo ma ọ bụ itinye ihe ọkụkụ, ọ gwụla ma akwadoro ya.

PTFE teepu reusability na-adabere na ihe anọ: nrapado usoro (elu crosslink njupụta, ala silicone Mbugharị, microphase Ọdịdị maka repositionable tack), mkpụrụ anchoring (n'elu activation + primer iji gbochie zuru nrapado nyefe), backside mkpuchi (wepụ oyi akwa iji chebe nrapado n'oge unwinding), na kwesịrị ekwesị njikwa (na-ehicha ihe nrapagidere n'elu). Adhesives agbanweela nke mmiri na-asachapụ nwere ike nwetaghachi> 90% tack mgbe ihichachara.

Teepu PTFE dị obosara-okpomọkụ chọrọ PSA silicone nke na-ejigide adhesion site na -70°C ruo 260°C. Isi ihe imewe: primer-anchored Layer Layer (na-egbochi delamination), microstructure nke oke osimiri (MQ resin Islands + polysiloxane na-aga n'ihu na-aga n'ihu), gradient crosslinking (oke njupụta dị n'ime ime maka nguzogide creep, obere njupụta elu elu maka obere okpomọkụ tack), na okpomọkụ-nkwụsi ike fillers (cerium oxide maka oxide). Akụkụ siloxane emezigharịrị Phenyl na-egbochi kristal dị ala, na-eme mgbanwe n'okpuru -100°C.

Ọdịdị ihu njedebe nke PTFE dị elu na-emetụta nrapado na-ebuli elu n'oge ngwa. Ọkpụkpọ na-adịghị mma (agụba na-adịghị mma, akụkụ na-adịghị mma) na-emepụta filaments gluu, na-eme ka oyi akwa nrapado dị n'akụkụ, ma na-ekpughe ihe mgbochi fiberglass - na-eduga n'ọfụfụ, njikọ na-adịghị ike, na ibuli n'okpuru okpomọkụ ma ọ bụ esemokwu. Ihu njedebe na-adịghị agafe agafe (efegharị efegharị, na-apụta) na-ebute nkesa nrụgide na-ezighi ezi, na-anya nrapado na-akpụ akpụ n'oge nchekwa. Ihu njedebe dị mma dị mma, nke na-asọ oyi, na enweghị mmebi - na-eme ihe dị ka akara nke na-emechi ihe nrapado ma na-eme ka njikọ zuru oke.

N'oge mkpuchi teepu PTFE, ihe mgbaze volatilization ọnụego nke silicone mgbali-enwe mmetụta nrapado bụ oké egwu usoro oke. Oke ngwa ngwa → akpụkpọ anụ n'elu, ọkwa adịghị mma, pinholes (ihe mgbaze tọrọ atọ), na craters (condensation ma ọ bụ ihe mmetọ kpatara). Ọ dị nwayọ → mgbada, akụkụ gbara ọkpụrụkpụ, na iwe iwe na PTFE ike dị ala. Atụmatụ kachasị mma: iji nwayọọ na-agbanwe mmalite mmalite maka ịha nha na mgbanarị afụ, wee mee ngwa ngwa ihicha maka ịkpụzi. Jiri ihe mgbaze agwakọta (toluene/xylene + ihicha ngwa ngwa) na gradient oven okpomọkụ (ala → ọkara → elu).

PTFE elu-okpomọkụ teepu nwere magburu onwe nnu ịgba-eguzogide, ma na-adịghị ike ihe bụ nrapado oyi akwa na fiberglass mkpụrụ n'ọnụ. Ụzọ nyocha: 1000h na-anọpụ iche nnu ịgbasa (NSS), ịlele peel ike njide (≥80% chọrọ), visual ntụpọ (ebuli, ọnya), na metal substrate corrosion. Maka gburugburu oke mmiri na nnukwu nnu-nnu: jiri silicone PSA (ọ bụghị acrylic), mkpụrụ PTFE zuru oke, mechie ọnụ ya na mkpuchi ihu igwe na-eguzogide, ma tinye primer n'elu igwe.

Teepu okpomọkụ dị elu PTFE na-efunahụ adhesion ka ejiri ya ugboro ugboro n'ihi mmetọ elu (uzuzu, mmanụ silicone), ọdịda nrapado cohesive ọdịda (ihe fọdụrụ), ma ọ bụ njikọ na-adịghị ike. Ngwọta: akwa-crosslink silicone PSA (mbugharị dị ala, ike na-ejigide ike), ọgwụgwọ primer na mkpụrụ PTFE, nkwado fiberglass siri ike, na njikwa kwesịrị ekwesị (ebe dị ọcha, bee oyi, 180 ° n'akuku). Nnwale ọnụọgụ na-akwado nkwalite.

PTFE elu-okpomọkụ teepu echekwara n'okpuru kpọmkwem ọnọdụ (10-25 ° C, 40-70% RH, pụọ UV / arọ mgbali) nwere a ọkọlọtọ shelf ndụ nke 3-6 ọnwa (premium akara ule ruo 12 ọnwa). Ọnụ ụzọ mmebi isi: ike bee agaghị ada n'okpuru 70% nke uru mbụ; enweghị ihe fọdụrụ na nrapado mgbe ewepụrụ oke okpomọkụ; enweghị carbonization ma ọ bụ cracking na gosiri okpomọkụ. Nleba anya ngwa ngwa: mmetụta iwegharị akwụkwọ ntuziaka, nnwale 260°C, na ule shrinkage lamination.

teepu PTFE akpọrepu nwere ike ịmepụta njikọ interlayer (igbochi) na nnyefe nrapado n'oge nchekwa ogologo oge. Ihe na-akpata: PTFE film na-agbanwe ebe nchekwa na silicone PSA creep n'okpuru nrụgide / okpomọkụ. Mgbochi: mgbakasị ikuku gradient (mpụta siri ike, nke dị n'ime) n'oge nrụpụta, gbakwunyere mkpuchi ntọhapụ n'akụkụ anaghị ejikọta ya. Na-echekwa na -15°C ruo 40°C, 30-70% RH, kehoraizin n'elu racks, tụgharịa mpịakọta kwa nkeji iri na ise. Maka akara nrapado siri ike, tinye akwụkwọ ntọhapụ n'etiti ọkwa.

PTFE teepu okpomọkụ dị elu echekwara n'ụdị mpịakọta nwere ike ịta ahụhụ site na ntinye nke interlayer (igbochi) na nnyefe nrapado n'akụkụ na-adịghị mma. Mgbọrọgwụ na-akpata: PTFE film na-agbanwe ebe nchekwa na silicone PSA creep n'okpuru nrụgide na okpomọkụ. Ngwọta: mgbakasị ikuku gradient – ​​siri ike n'ígwé dị n'elu, kwụpụ n'ígwé dị n'ime - na-eji njikwa esemokwu mechiri emechi. Mmeju na mkpuchi ntọhapụ, nchekwa kwesịrị ekwesị (15-40°C, 30-70% RH), ntinye kwụ ọtọ, na ntụgharị mpịakọta nkeji nkeji.