Isiokwu a na-ekpuchi otú e si dakọtara mkpuchi igwe akara ọsọ na oven ogologo iji hụ na organosilicon nrapado esịmde lekwasịrị curing ogo maka elu-okpomọkụ PTFE teepu. Ụkpụrụ kwekọrọ n'isi: ngụkọta oge obibi t_total = ogologo oven dị irè L ÷ ahịrị ọsọ v ga-abụrịrị obere oge ọgwụgwọ achọrọ. Nweta njirimara ọgwụgwọ site na DSC ma ọ bụ nyocha ọgwụgwọ nrapado na-eme ka mmekọrịta 'okpomọkụ - oge ọgwụgwọ kacha nta.' Nkwekọrịta ọgwụgwọ nhata: kewaa oven n'ime mpaghara, gbakọọ ti = Li/v na tcure(Ti), hụ ∑(ti/tcure(Ti)) ≥1. Usoro ngụkọ: tọọ mpaghara okpomọkụ nwere ogologo Li na okpomọkụ Ti; setịpụ ọsọ ahịrị v, gbakọọ oge obibi mpaghara ọ bụla na oke onyinye; megharịa ruo mgbe ngụkọta ≥1 (oke nchekwa 1.1-1.2 tụrụ aro).

Isiokwu a na-atụnyere iche n'etiti infrared radieshon kpo oku na-ekpo ọkụ-ikuku mgbasa kpo oku ụzọ on crosslinked Ọdịdị uniformity nke silicone nrapado n'ígwé. Usoro nnyefe ọkụ: ikuku na-ekpo ọkụ na-adabere na convection-conduction na ịrị elu okpomọkụ dị nro, obere ọdịiche dị n'ime / mpụta; IR nwere ntakịrị omimi ntinye ya na nnabata elu siri ike (iri na iri na narị micrometers) na-eke gradient dị elu-ruo n'ime. Mmetụta dị na crosslink uniformity: ikuku na-ekpo ọkụ na-enyere aka ịgwọ ọrịa n'ime na n'èzí na njupụta crosslink otu; IR na-eme ka oyi akwa dị n'elu na-etolite ngwa ngwa 'ihe nkiri akpụkpọ ahụ' nke na-egbochi mmeghari okpomọkụ na imegharị agbụ dị n'ime, na-emepụta njupụta njikọ njikọ na-agbada site n'elu ruo n'ime.

Edemede a na-ekpuchi akwụkwọ ozi ọnụọgụ n'etiti akụkụ jel na ike jikọrọ ọnụ na nrapado nrụgide silicone maka teepu Teflon. Nkeji gel = oke pasentị nke netwọk njikọ ejikọtaghị ya na toluene ( mmịpụta Soxhlet, 24hr). Ike jikọtara ọnụ nke ejiri ike na-ejide okpomọkụ dị elu (180 ° C, 1kg). Oke atọ: n'okpuru ebe dị oke egwu (<60%) - enweghị netwọọkụ na-adọkpụ, na-ejide ike dị nso efu; dị irè (60-85%) - ike na-ejikọta ọnụ na-eto ngwa ngwa site na mpempe gel, 60% → 70% na-ebuli oge site na nkeji ruo awa, 70% → 80% na-enye mmụba 3-10x; elu crosslinking (> 85%) - uru ngwa ngwa (85% → 95% naanị 20-50% na-abawanye), tack na-adaba nke ọma,> 95% na-efunahụ ihe PSA.

Isiokwu a na-ekpuchi otu esi ejikọta okpomọkụ decomposition na ọkara ndụ nke peroxide crosslinking agents (BPO na DCP) na windo usoro ọgwụgwọ maka Teflon teepu. Isi data: BPO - 1-min ọkara ndụ na ~ 131 ° C, 1-hr na ~ 92 ° C, 10-hr na ~ 72 ° C; DCP — 1-min na ~171°C, 1-hr na ~135°C, 10-hr na ~115°C. Echiche dabara adaba: nrapado chọrọ 97-99% crosslinking = 5-7 ọkara ndụ; oge ọgwụgwọ = 5-7 × ọkara ndụ na ọnọdụ okpomọkụ. Back-gbakọọ okpomọkụ site na mmepụta ahịrị obibi oge ma ọ bụ azụ-gbakọọ oge site na kacha ekwe okpomọkụ.

Isiokwu a na-atụnyere iche n'etiti infrared radieshon kpo oku na-ekpo ọkụ-ikuku mgbasa kpo oku on crosslinked Ọdịdị uniformity nke silicone nrapado oyi akwa. Usoro mbufe ọkụ: ikuku na-ekpo ọkụ bụ convection-convection, dị nwayọọ ma na-aga n'ihu, na-emepụta gradient okpomọkụ na-agafeghị oke; IR bụ mmịpụta radieshon nwere oke mmịfe elu (micrometers ruo millimeters) na-eke gradient dị elu-ruo n'ime. Mmetụta dị na nkesa njupụta nke crosslink: ikuku na-ekpo ọkụ na-enye ohere ka akụkụ ime na mpụta banye n'ime oke okpomọkụ nke fọrọ nke nta ka ọ bụrụ n'otu oge, na-emepụta njupụta crosslink otu na oke; IR na-eme ka oyi akwa dị n'elu gwọọ ozugbo na-etolite akpụkpọ anụ nke na-egbochi nnyefe okpomọkụ, na-ebute gradient dị nkọ nke njupụta crosslink na-ebelata site na elu ime.

Isiokwu a na-enyocha mmetụta nke njikwa esemokwu weebụ n'oge mkpuchi teepu Teflon na-ekpo ọkụ na PTFE substrate flatness na nrapado mkpuchi uniformity. Mmetụta dị na steepụ mkpụrụ: esemokwu na-agafe oke na-agbanwe agbanwe na-akpata mgbatị plastik na-enweghị ike ịgbatị (longitudinal elongation, transverse narrowing), na-eme slackness, wrinkles na wavy ụkpụrụ; PTFE na-akpụ akpụ n'okpuru esemokwu na-adịgide adịgide na-aghọ ' oyi kpọnwụrụ' mgbe ọ jụrụ oyi, na-eme ka ahụ ghara ịdị n'elu; Esemokwu ngbanwe na-enweghị isi site na myirịta rola na-adịghị mma na-emepụta akụkụ ndị gbajiri agbagọ, ọnya etiti, na akara ndị na-esighị ike n'oge.

Isiokwu a na-akọwa ụkpụrụ nke mgbanwe na cohesive ike nke PTFE elu-okpomọkụ teepu nrapado oyi akwa mgbe elu okpomọkụ ịka nká. Usoro nke atọ: Ogbo na-ebilite mgbe ọgwụgwọ gasịrị (mkpughe okpomọkụ dị elu na 200-260 Celsius, ìgwè ndị na-emegharị ihe na-aga n'ihu na-aga n'ihu na-agafe, njikọta na-abawanye nke ukwuu); Ogbo nha anya kwụsiri ike (ịgafe ụzọ mmecha, njikọta na-adịgide ogologo oge); Mweda na ọdịda ogbo (oke oge/okpomọkụ na-akpata mmebi agbụ ígwè, ịdị n'otu na-ebelata, nrapado na-adị nro ma bụrụ nke na-adịghị mma). A na-enyocha ihe kpatara ọdịda njikọta ọnụ (ndọwa nke ime na-ahapụ ihe fọdụrụ) na ịpịpụta (oyi na-erute n'akụkụ n'ihi mbelata modul).

Edemede a na-egosi ụzọ iji meziwanye nguzogide na-akpụ akpụ na nkwụsi ike ogologo oge nke teepu dị elu nke Teflon dị elu. Usoro gụnyere: Njikarịcha netwọkụ netwọkụ molecular - elu MQ silicone resin/gum ratio (1.2:1–2:1) na-etolite ngalaba ngalaba siri ike; ntinye nke otu phenyl (20-30 mol%) na-egbochi mmegharị agbụ; crosslink molecular arọ na-achịkwa na 5,000-15,000 g / mol; Gradient modul multilayer nrapado Ọdịdị - primer-anchoring oyi akwa (1-3μm) na silane njikọ njikọ, elu-modul cohesive oyi akwa (30-50μm) dị ka shear-eguzogide skeleton, viscoelastic functional oyi akwa (3-8μm) maka elu wetting; Nanofillers - silica fumed (10-25 wt%) nwere ngbanwe elu na-emepụta njikọgharị anụ ahụ nwere ike ịtụgharị.

Isiokwu a na-ekwu otú microporous Ọdịdị imewe nke breathable Teflon (PTFE) elu-okpomọkụ teepu itule ikuku permeability na mkpuchi na-abụghị osisi Njirimara. Esemokwu dị n'etiti: ikike ikuku chọrọ oghere oghere, ebe mkpuchi na-achọ njupụta na enweghị mkpisi na-achọ ebe dị larịị. Atụmatụ imewe dabara adaba: na-achịkwa nkezi pore dayameta (0.1-2μm, nke kachasị <0.5μm) iji gbochie ịgbaze agbaze ma nọgide na-enwe voltaji ndakpọ; njikwa porosity na 50-70% (≈60% kacha mma) na-enweta Gurley 20-100s / 100cc na ike dielectric ≥2kV maka ihe nkiri 0.13mm; nabata usoro pore netwọkụ 3D dị elu tortuosity (τ≈2.5-4) iji gbochie ọwa mgbasa ozi kwụ ọtọ; wuo ihe owuwu asymmetric gradient pore nwere akwa akpụkpọ anụ dị n'elu (1-5μm) maka enweghị mkpisi / mkpuchi na ime ime oghere maka iku ume; tinye super-oleophobic/hydrophobic elu post-ọgwụgwọ na-enweghị pore blockage.

Isiokwu a na-enye usoro nhazi usoro maka igbochi nrapado nrapado na nrapado ọbara mgbe ị na-eji PTFE elu-okpomọkụ teepu iji chebe PCB gold mkpịsị aka n'oge SMT mgbakọ. Ntụle ihe kpatara mgbọrọgwụ: ihe fọdụrụ na-apụta site na nkwụsị ọnụ ma ọ bụ nnyefe interfacial; ọbara na-apụta site na viscosity dobe na nrapado jubigara ókè n'okpuru okpomọkụ nlọghachi. Ngwọta isi bụ nhọrọ teepu kwesịrị ekwesị: silicone PSA nwere obere oge kacha elu ≥300C, na-aga n'ihu ≥260°C, ngụkọta ọkpụrụkpụ 0.08-0.13mm na mkpa akwa-njikọ nrapado n'ígwé, na mgbochi-ọbara ọbara / ihe fọdụrụ-free asambodo. Usoro nhazi usoro isii: ihicha tupu lamination na IPA; lamination efu na-ebupụ ikuku zuru oke; profaịlụ reflow nke kachasị mma yana kpo oku dị nro (<2°C/s); oyi peeling n'okpuru 50 ° C na 180 ° n'akuku; nhazi ozugbo n'ime awa 24 na otu-eji naanị; njikwa ọdịda site na ihichapụ IPA na nyocha 40-50x magnifier. Maka PCB nwere akụkụ abụọ, jiri teepu ọhụrụ dochie tupu nhazi akụkụ nke abụọ.