I-PTFE ayinamathele ngokwendalo kwifiber yeglasi. Ngaphandle konyango olululo lomphezulu, i-PTFE coating on Ilaphu le-PTFE elinobushushu obuphezulu liya kuxobuka njengekawusi ekhululekileyo. Imfihlo ilele kwiiarhente zokugqiba umphezulu -unyango lwekhemikhali olufakwa kwilaphu le-fiberglass phambi kokugquma.
Ezi arhente - ikakhulu i-organosilane coupling agents - zisebenza njengeebhulorho zemolekyuli, zibophelela ngekhemikhali i-inorganic glass fiber kwi-PTFE yendalo. Ukhetho lwearhente, ukugxininiswa kwayo, kunye nenkqubo yokunyanga ngokusisiseko imisela amandla e-peel, ukumelana nobushushu, ubomi obuguqukayo, kunye nokusebenza kwe-dielectric.
I-Aokai PTFE iye yalungisa umphezulu wokugqiba ikhemistri kumashumi eminyaka emveliso. Esi sikhokelo sichaza iindidi eziphambili ze-arhente, impembelelo yazo kwiipropati eziphambili, kwaye kutheni unyango olufanelekileyo lungenakuxoxisana ngelaphu le-PTFE elikumgangatho ophezulu.
Iindidi eziphambili zee-Arhente zokuQeda uMphezulu
Phambi kokutyabeka kwe-PTFE, ilaphu le-fiberglass lihlala likhupha iwax kunye nokusebenza komphezulu. Iikhemikhali zonyango zihlelwa ngokwemichiza ngolu hlobo lungezantsi:
Udidi |
Iimveliso eziqhelekileyo |
Iimpawu kunye nezicelo |
I-Arhente yokuDityaniswa kwe-Organosilane (Eyona isetyenziswa kakhulu) |
I-Amino silane (KH-550 / A-1100); I-Epoxy silane (KH-560 / A-187) |
Icondensation nge-Si-OH kunye namaqela e-hydroxyl kumphezulu wefiber yeglasi; Amaqela asebenzayo enza imixokelelwane yeekhemikhali okanye ukubanjiswa ngokwasemzimbeni → iibhulorho zemolekyuli, ukomeleza kakhulu ukuncamathela kokutyabeka |
Iarhente yokuNxibelelanisa iTitanate |
I-Monoalkoxy kunye ne-chelate titanates |
Ukumelana nobushushu obugqwesileyo obuhambelana neenkqubo ze-fluoropolymer; iphucula ukumanzisa kwe-PTFE kwi-fiberglass, icinezela ukuthotywa kobuso phantsi kobushushu obuphezulu |
Fluorinated Coupling Agent |
Perfluoroalkyl triethoxysilane |
I-Ultra-low surface energy, ukuhambelana okuphezulu kwe-PTFE; I-perfluorocarbon chain entanglement iphucula ukubambelela, i-hydrophobicity, ukusebenza okuchasayo |
Iarhente yokuGqibela iChromium Complex |
IVolan (imethacryloyl chromium chloride) |
Unyango lokuncamathelisa kwangaphambili; yapheliswa ngenxa yokusingqongileyo kunye neenkxalabo zokurisayikilishwa kwakhona ngaphandle kwesiphumo sebhondi ebalaseleyo |
Inorganic Nano Sol |
I-silica sol, i-alumina sol |
Yenza i-nano-scale rough topography kumphezulu wefiber kwiziza zomatshini zokubambelela; ngokuqhelekileyo kudityaniswe neearhente zokudityaniswa |
I-Polymeric Primer |
Ubunzima bemolekyuli ephantsi PTFE / FEP / PFA ukusasazwa, i-resin primer edityaniswe nearhente yokudibanisa |
Yenza umaleko we-ultra-thin transitional transitional fluoropolymer kwi-fiberglass ukuququzelela ukuhlangana kwe-topcoat okulandelayo; kunciphisa kakhulu umngcipheko we-delamination |
I-Aokai PTFE isebenzisa umdibaniso wobunikazi we-epoxy silane kunye ne-fluorinated coupling agents kwibanga lethu eliphezulu lobushushu belaphu le-PTFE. Olu qulunqo lumelana ne-260 ° C yenkonzo eqhubekayo ngaphandle kokuthotywa kwe-interfacial degradation - iqinisekiswe yi-3,000 yeyure yokuvavanya ukuguga ukushisa.
Impembelelo kwiiPropati eziPhambili ze-PTFE Ilaphu lobushushu obuphezulu
Ukukhonza njengendawo ephakathi kobuso phakathi kwefayibha yeglasi ye-inorganic kunye ne-organic fluoroplastic, ibakala learhente yonyango kunye nokusetyenzwa kulawula ukusebenza kwemveliso egqityiweyo.
1. Amandla okuncamathela kunye nokuqina kwePeel
Umgangatho Wonyango |
Amandla e-Peel |
Imo Yokusilela |
Ukunganyangwa / ukuphathwa kakubi |
<2 N/cm |
Amaqamza okwambathisa, i-delamination emva kokuqengqeleka/ukusonga okanye ukuvezwa kobushushu obuphezulu; ubomi benkonzo emfutshane |
I-arhente yokudibanisa ephuculweyo |
4–8+ N/cm |
Ukudibanisa kweekhemikhali + ukudibanisa ngokomzimba; i-coating imelana nokuxobula phantsi kokuguqulwa okuphindaphindiweyo kunye nokutshatyalaliswa kwe-thermal |
Impembelelo ebalulekileyo: Amandla e-Peel yeyona nto ithatha isigqibo sobomi bokudinwa okuguquguqukayo kunye nokumelana ne-delamination.
2. Ukumelana nobushushu kunye nokuzinza kweThermal
Ii-agent ezikwaziyo ukumelana nobushushu obuphezulu (ezine-benzene okanye i-heterocyclic structures, umz., i-epoxy & acyloxy silanes ethile) imelana nokuqhubekekayo kwe-260°C kunye nencopho ekhawulezileyo>300°C – ehambelana neemeko zenkonzo ye-PTFE.
Izongezo zendalo eziqhelekileyo zibola ngokobushushu kumaqondo obushushu anyukileyo → izithuba eziphakathi kobuso, umbala otyheli, ukugqabhuka.
Ukuchaphazeleka kwesicelo: Kwizicelo zobushushu obuphezulu, qinisekisa ukuba i-arhente yokugqiba ngokwayo izinzile ngokwe-thermal, hayi nje i-PTFE yokwambathisa.
Ukuguqulwa kwe-silane efanayo kwandisa i-emulsion ye-PTFE esasazeka kunye nokumanzisa kumphezulu wefayibha → ukugquma okuthe gqolo kokugquma okunemingxuma emincinane kunye nee-microcracks → kubaluleke kakhulu ukophuka kwamandla ombane kunye nokukwazi ukugquma.
Iikhemikhali ze-Hygroscopic okanye i-ion-engcolisekileyo yonyango iphakamisa ilahleko ye-dielectric. I-silane yococeko oluphezulu yamkelwe kwilaphu le-PTFE ye-premium-grade ukunciphisa ukuphazamiseka kokungcola.
4. Ukumelana neeKhemikhali kunye nesithintelo sokufuma
Uhlobo lomenzeli |
Isiphumo |
I-agent edibanisa i-fluorinated |
Iimpawu zendalo ze-hydrophobic kunye ne-oleophobic → iibhloko ukungena kwi-capillary yokufuma kunye neekhemikhali ezidliwayo → kuphucula kakhulu ukuguga okufumileyo, iasidi kunye nokunganyangeki kwealkali |
Inorganic nano sol |
Isithintelo esixineneyo sikhusela ifayibha yeglasi ekufakweni nge-hydrofluoric acid kunye nemithombo yeendaba eyonakalisayo |
5. Ukuba bhetyebhetye & neFabricability
Umba |
Isiphumo |
Ii-arhente zokudityaniswa kwe-over-dosed okanye i-rigid-group-etyetyiswe |
Ilaphu eliqina, lithintele ukuthungwa okulandelayo kunye nokusonga |
Ukwenziwa kweesileni ezinde eziguquguqukayo |
Igcina ukuthembeka ngaphandle kokuncama ukusebenza kwebhondi |
Inqaku elisebenzayo: Ubungakanani be-ejenti yokugqiba esetyenzisiweyo kufuneka ilungelelaniswe ngokucokisekileyo - incinci kakhulu ibangela ukubambelela kakubi, kakhulu kunciphisa ukuguquguquka.
Isishwankathelo - Kutheni ii-Agents zokuGqibela uMphezulu zibalulekile
Ipropati |
Impembelelo yoNyango oluLungileyo |
Iziphumo zoNyango oluHluphekileyo/Alukho |
Amandla e-Peel |
4-8+ N/cm |
<2 N/cm → ukunyibilika, ukubhubhuza |
Ukumelana nobushushu |
Izinzile ukuya kuma-260 ° C + |
Umgama ophakathi kobuso, umthubi, ukuchaphazeka ngaphezu kwe-200°C |
Ukusebenza kweDielectric |
Ukugquma ngokuqhubekayo, imingxuma embalwa |
Ilahleko ephezulu ye-dielectric, umngcipheko wokuqhekeka |
Ukumelana nemichiza |
Iibhloko zokufuma/ikhemikhali i-capillary wicking |
Ukuhlaselwa kwefiber yeglasi, ukungaphumeleli kwangaphambi kwexesha |
Ukuba bhetyebhetye |
Igcina ukuthembeka xa ilungiselelwe |
Ilaphu eliqinileyo, kunzima ukulisonga |
I-ay takeaway: Iarhente yokugqibezela umphezulu yitekhnoloji engundoqo ye-PTFE yokuvelisa ilaphu lobushushu obuphezulu. Ilawulwa ziiarhente zokudityaniswa kwe-organosilane, ezi khemikhali zakha unxibelelwano lwemolekyuli kwi-inorganic-organic interface ukusombulula ukunganamatheli kakuhle kwe-PTFE kwi-fiberglass. Ngokusisiseko bamisela amandla e-peel, ubomi obuguqukayo, ukumelana nobushushu, ukugqunywa kombane, kunye nokungangeni kwemichiza.
Isishwankathelo , i-agent yokugqiba umphezulu efakwe kwilaphu le-fiberglass phambi kokuba i-PTFE yokwambathisa ayiyonkcukacha zincinci - sisiseko se-PTFE umgangatho welaphu eliphezulu lobushushu. I-Organosilane coupling agents (i-amino, i-epoxy, i-fluorinated) yenza iibhulorho ze-molecular ezibalulekileyo phakathi kwe-glass fiber kunye ne-PTFE, ukunyusa amandla e-peel ukusuka ku- <2 N / cm ukuya kwi-4-8 + N / cm. Unyango olufanelekileyo lukwanyusa ukuxhathisa ukushisa (260 ° C +), ukudibanisa ukugubungela, ukusebenza kwe-dielectric, kunye nokumelana nemichiza.
Xa ukhetha ilaphu le-PTFE kwizicelo ezifunayo, buza malunga nomphezulu wokugqiba ikhemistri - ichaphazela ngqo ubomi benkonzo kunye nokuthembeka. Gwema ii-substrates ezingaphathwanga okanye ezingaphathwa kakuhle, eziya kuphelisa phantsi koxinzelelo lwe-thermal kunye nomatshini.
Ngaba ufuna ilaphu lobushushu obuphezulu le-PTFE elinokugqiba umphezulu olungiselelweyo? I-Aokai PTFE isebenzisa imixube yearhente yoqhagamshelo oluphezulu ukuncamathela kunye nokuqina. Qhagamshelana nathi ngeemfuno zakho zesicelo.
Umxholo Ubonelelwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.
Ukufumana iinkcukacha ezithe kratya, isikhokelo sesicelo, kunye nezisombululo ezilungiselelweyo zepotifoliyo yemveliso epheleleyo: PTFE ilaphu letempe eliphezulu, i-PTFE iteyiphu encamathelayo, ibhanti le-PTFE elinemesh, ibhanti le-fuser elingenamthungo, ilaphu elityatyekwe kwicala elinye le-PTFE, ibhanti lokuhambisa elikwaziyo ukumelana nobushushu kunye nelaphu lobushushu obuphezulu be-fiberglass , nceda uqhagamshelane nathi:
Ukugcina ubuchwephesha kunye nemfezeko, sibonelela ngezisombululo zobugcisa ezijikelezayo kunye nenkonzo yomthengi ecingayo.
