Jiangsu Aokai New Materials, inyanzvi inogadzira tepi yePTFE yakakwirira-tembiricha, inotsanangudza pamusoro pemisiyano mukugadzikana kwechigadzirwa kunounzwa nekamuri-tembiricha uye yakakwirira-tembiricha maturation yesilicone pressure-sensitive adhesive (PSA).
I. Kusiyana muCrosslinking Network uye Cohesive Strength
Pasi petembiricha ye120 ° C ~ 180 ° C, cheni dzemamorekuru mukati meiyo adhesive layer inowana mafambiro akakwana, ichisimudza kudhumhana frequency yeanoshanda anoshanda mapoka. Iyo yakanyanya kuchinjika, yakaenzana yakagovaniswa matatu-dimensional network inoumbwa, ichipa iyo inonamira nesimba rakasimba rekubatana kuti rirambe kuyerera uye deformation pasi pekupisa kwakanyanya.
2. Room-temperature maturation: Loose crosslinked structure
Magadzirirwo anoenderera zvishoma nezvishoma uye zvisina kukwana pane ambient tembiricha (~ 25 ° C), zvichikonzera nzvimbo shoma, dzisina kuenzana dzekuyambuka uye akawanda asina kubatwa emahara cheni zvikamu zvakavharirwa mukati mekunamira. Zvimiro zvakadaro zvakasununguka zvinotambura zvakanyanya kusakwana kubatana, uye zviri nyore kupfava kana kunyura mukupisa.
3. Decisive impact pane adhesive residus mushure mekusvuura
Tepi yakura-yepamusoro-tembiricha inozvirumbidza nesimba rakabatana rakasimba kupfuura simba rekunamira kumeso; iyo yese yekunamira layer inosvuuka zvachose pasina zvakasara. Kusiyana neizvi, tepi yekamuri-tembiricha yakakura inopinda nyore nyore kutadza kwakabatana, iine chinonamira chakabvaruka chinosiiwa pane zvakasungwa substrates uye kugadzira kusvibiswa kwakasindimara - iyi ndiyo gaka rinonyanya kunzwisisika rekuita pakati pemaitiro maviri aya.
II. Interfacial Bond Simba nePTFE Substrate
1. High-temperature maturation: Chemical anchoring bonding
PTFE ine Ultra-yakaderera pamusoro pesimba uye inoda yakakosha kurapwa kwepamusoro kana primer coating. Kukura-kupisa kwepamusoro kunogonesa kubatana kweprimer uye silicone adhesive panguva imwe chete, ichigadzira inopindirana yemakemikari bonding network pane iyo interface. Iyo yekupedzisira-yepamusoro yekubatanidza simba inodzivirira yakazara adhesive delamination kubva kune substrate panguva yakadzokororwa yakakwirira-tembiricha mashandiro.
2. Room-temperature maturation: Kutsamira pane yemuviri adsorption
Ambient tembiricha haigone kumisa kuzere kuita kweiyo primer. Kubatana pakati pekunamira uye substrate kunonyanya kuenderana nekusasimba kweintermolecular yemuviri adsorption, ine simba rekubatanidza rakaderera kune kemikari crosslinking.
3. Njodzi dzakasiyana dzepamusoro-tembiricha delamination
Interfaces inobatwa neadsorption yemuviri inokundikana zviri nyore pasi penguva refu-yepamusoro-tembiricha kuratidzwa, zvichikonzera adhesive kuchinjika pane workpieces uye isina PTFE jira pamusoro. Kusiyana neizvi, makemikoro anchoring layers akaumbwa kuburikidza nepamusoro-tembiricha maturation akavimbika anobvisa njodzi dzakadai.
III. Yakaderera-Molecular Residues & High-Temperature Volatiles
1. High-temperature maturation: Kubvisa tsvina yakakwana kusati kwasununguka
Iyo yepamusoro-tembiricha yekukura maitiro inoita seyakakwana pre-kucheneswa nhanho, inopotsa kubvisa zvinhu zvinoputika zvinosanganisira catalysts, low-molecular silicone oiri uye reaction byproducts. Iyo yakapedzwa inonamira layer inoramba yakachena neineggible volatile emissions panguva yekupedzisira-kushandiswa.
2. Room-temperature maturation: Zvikuru zvakaderera-molecular zvinhu zvakavharirwa mukati
Zvikamu zvakaderera-molecular zvinoramba zvakavharwa mukati meadhesive matrix pakupisa kwekamuri. Apo tepi inotanga kuratidzwa kune tembiricha inopfuura 200 ° C, zvinhu izvi zvinoputika nekukurumidza uye zvinowedzera nechisimba.
3. Migumisiro inoparadza pakugadzikana
Concentrated volatilization ye low-molecular compounds inokonzeresa kutumbuka, kutumbuka uye kurasika kwakapinza patepi. Iyo inogona zvakare kusiya madonhwe emafuta e-silicone pane zvigadzirwa zvakavharwa-kupisa mushure mekunaya kwakanyanya kwekushisa. Naizvozvo, tepi yekamuri-tembiricha yakakura inoratidza kusagadzikana kwekuita pakudziya kwekutanga, kutadza kusimba kwehutsanana hwemagetsi, kurongedza chikafu uye mamwe maindasitiri chaiwo.
1. High-temperature maturation: Thermodynamically stable state pakusununguka
Kukwirira kwepamusoro-tembiricha kunofambisa maitiro ekubatanidza kusvika pakupera, saka matepi anosiya fekitori aine mametric ekuita akagadzikana. Zviratidzo zvakakosha senge peel simba uye kubata simba rinogara richienderana mukati mesevhisi kutenderera, pasina zviri pachena mushure mekurapa shrinkage, kuoma kana kushanduka kwedimensional, kuunza fungidziro yakanyanya kuita.
2. Room-temperature maturation: Kuenderera mberi kwechipiri maturation panguva yebasa
Tepi yekamuri-tembiricha yakaporeswa inosangana neasina kukwana crosslinking maitiro kana akaiswa kune tembiricha yepamusoro panzvimbo yemutengi. Zvishoma nezvishoma kuoma uye embrittlement kunoitika nekufamba kwenguva; Simba re peel rinosimuka kutanga rozodzikira zvakanyanya, uye tack inogona kurasikirwa zvachose mumatambudziko akaomarara.
3. Kuenzanisa kwakakwana kwekuvimbika kwebasa
Kubatsirwa kubva kune yakagadzikana makemikari zvimiro, yakakwirira-tembiricha matured tepi inochengetedza yakanakisa kubata simba pasi pekuenderera 260 ° C mamiriro ekushanda, kuramba kutsvedza uye kumucheto curling. Kuita kwekamuri-tembiricha yakakura tepi inodonha nguva dzose, zvichiita kuti zvigadzikane zvekugadzira zvisaite. Musiyano wepakati uri pakuti kukwirisa-tembiricha kupedzisa kusagadzikana kwese kushanduka kwemakemikari kusati kwasvika, kuve nechokwadi chepamusoro kuvimbika kwevashandisi vekupedzisira.
Izvo zviri pamusoro pehunyanzvi zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kuwana tsanangudzo dzakadzama, mamiriro ekushandiswa uye zvigadziriso zvakagadziridzwa zvechigadzirwa chedu chizere chepodfolio chinosanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature adhesive tepi, PTFE yakakwirira-temperature mesh bhandi, seamless kupisa kudzvanya bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira girasi uye inodzivirira kupisa girazi, tapota taura nesu pazasi-inodzivirira girazi.
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