PTFE High-Temperature Tepi yeFPC Inopisa Press Lamination Defect Prevention

Senyanzvi yekugadzira PTFE yepamusoro-tembiricha tepi, Jiangsu Aokai New Materials inokupa tsananguro yakadzama. Muchikamu chinopisa chekupisa cheFlexible Printed Circuit Boards (FPC), PTFE high-temperature tepi inogadzirisa matambudziko maviri makuru - substrate wrinkling uye adhesive transfer - kuburikidza nemigumisiro yakasanganiswa yezvakasikwa zvinhu (yakaderera pasi pesimba, yakakwirira dimensional kugadzikana) uye optimized processing tekinoroji (stacking chimiro dhizaini, parameter dhizaini). Iyo inoshanda seyakanaka yakachena yekuzviparadzanisa layer  uye kumanikidza kuenzana buffer layer.

I. Zvinokonzera Substrate Kuunyana uye Adhesive Transfer

Substrate Wrinkling Chikonzero chikuru chiri mukupisa kusina kuenzana uye kuparadzirwa kwesimba. FPC inoumbwa nezvinhu zvakawanda zvakaita sePI firimu, foil yemhangura uye zvinonamira zvine akasiyana coefficients ekuwedzera kwekupisa (CTE). Uye zvakare, redunhu bhodhi dhizaini zvinhu zvinosanganisira kusaenzana kwemhangura ukobvu uye stiffener nhanho zvinotungamira kune kusaenzana kudzvanywa kugovera. Non-uniform kupisa uye kumanikidza kunokonzera mukati kushushikana kwezvinhu, zvichikonzera kuunyana, warping uye delamination.

Adhesive Transfer (Residual Adhesive) Izvi zvinonyanya kukonzerwa nekutarisa uye kukanganisa kwezvinhu. Iyo semi-yakaporeswa adhesive yekuvhara firimu yelamination inonyungudika uye inoyerera pasi pekushisa kwepamusoro, uye inonamatira pamusoro pezvinhu zvekuzviparadzanisa. Zvichakadaro, kana iyo silicone pressure-sensitive adhesive yakavharwa kumashure kwePTFE tepi isina kukwana tembiricha yekudzivirira kana kusapindirana kwemaitiro paramita, kutadza kwakabatana kuchaitika pakupisa kwakanyanya, zvichikonzera chidimbu chinonamira paFPC pamusoro.

II. Core Mechanisms ePTFE Yakakwira Temperature Tepi yeKudzivirira Kukanganisa

Kudzivirirwa kweSubstrate Wrinkling

Kusarudzika kwekupisa kwekutyisa & kuparadzirwa kweyunifomu muchimiro cheyakajairwa: Hot plate → PTFE tepi → silicone cushion → FPC → PTFE tepi → Hot plate , PTFE tepi inoita sedhizaini yekuburitsa. Yayo yakagadzikana yekupisa conductivity inovimbisa yunifomu yekupisa kupisa. Kubatana nesilicone buffer cushions, inobvisa kushushikana kunokonzerwa nekusiyanisa kuwedzera kwemafuta uye kuenzanisa kudzvanywa kwese, kudzivirira kushushikana kwenzvimbo uye kuunyana kunotevera. Pakugadzirwa kwepamusoro-soro, girazi-fiber yakasimbisa PTFE tepi ine yakaderera CTE inokurudzirwa kune yepamusoro dimensional kugadzikana.

Yakagadzika thermal processing hwindo Iyo PTFE layer inovhara yakananga kupisa kukanganiswa. Yakasanganiswa neiyo thermal hysteresis yesilicone cushions, kupisa conduction kunova kunyoro uye kugadzikana. Iyo inodzora mutsauko wekushisa kwemukati mukati me ≤ 5 ~ 7 ℃ panguva yekunamira gelling, ichigonesa kupera kwemhepo kwakazara kusati kwadzikama kunonamira kurapa, uye zvakanyanya kubvisa kuunyana kunokonzerwa nekukasika gelling uye kunonoka kupera. Iyo yekudziya mwero yechikamu chikuru chekukwira kwekushisa inokurudzirwa kudzorwa pa4.5 ~ 5.0 ℃/min.

Kubviswa kweAdhesive Transfer

Isina-tsvimbo midziyo ine Ultra-yakaderera pamusoro pesimba PTFE inoratidzira yakanyanya kuderera pamusoro pesimba (＜18 mN/m), yakadzikira kwazvo kupfuura iya yakanyungudutswa resin uye zvinonamira. Nekuita kwakanaka kusinga tsvinda kwakafanana neisina-tsvimbo cookware, inogona kupepetwa nyore nyore mushure mekutsvaira pasina kukwenya FPC substrates kana kusiya rasara guruu.

High-performance adhesive system kusarudzwa Kuti udzivise kuzvidzora kwekutamisa tepi, PTFE tepi yakagadzirwa nepamusoro-soro silicone pressure-sensitive adhesive ichagamuchirwa. Premium silicone adhesive inochengetedza kushanda kwakadzikama kusvika ku260 ℃, kuve nechokwadi chekuti zero yasara glue mukugadzirwa kwenguva refu kunoramba kuripo. Iyo tembiricha yekudzivirira giredhi inosangana zvizere nezvinodiwa maitiro (210-260 ℃).

Yakakwana Kuporeswa kweAdhesives Panguva yekuputira uye kugadzirwa kweAokai PTFE tepi, nguva isina kufanira yekurapa, tembiricha kana kumhanya kumhanya kunotungamira kune isina kukwana inonamira kurapa, izvo zvinowedzera kukonzeresa matambudziko ekunamira mukushandiswa kunotevera.

Izvo zviri pamusoro apa zvinopihwa neJiangsu Aokai New Material Technology Co., Ltd.

Kana iwe uchida rumwe ruzivo nezve maratidziro echigadzirwa, mamiriro ekushandisa uye zvigadziriso zvakagadziridzwa zvemutsara wedu wechigadzirwa, kusanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-tembiricha tepi, PTFE yakakwirira-temperature mesh bhandi, isina musono fusing muchina bhandi, single-sided PTFE yakavharidzirwa jira, yakakwirira-tembiricha isingachinjiki girazi, uye tinzwe girazi risingachinjike, uye tinzwe girazi remahara

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