Ho Rala Sebopeho sa Lera la Sekhomaretsi bakeng sa Litheipi tsa Mocheso o Pharalletseng oa PTFE

Mocheso o pharalletseng Theipi ea PTFE e tlameha ho tlamahane ka botšepehi ho -70 ° C (kapa ka tlase) 'me e pholohe ho pepeseha ho 200-260 ° C - nako e fetang 300 ° C. Sena se hloka tsamaiso ea sekhomaretsi e lulang e tenyetseha ntle le ho hloleha ho kopaneng kapa ho kopanya sefahleho ka mokhoa o feteletseng.

Lera la sekhomaretsi hangata ke sekhomaretsi se khethehileng sa silicone se nang le khatello ea maikutlo (PSA) se koahetsoeng lifiliming tsa PTFE tse fetotsoeng kapa lesela la fiberglass e kentsoeng ke PTFE. Ntho ea bohlokoa bakeng sa ts'ebetso e tsitsitseng ho pholletsa le fensetere e kholo joalo ea mocheso e itšetlehile ka ho haha ​​​​marang-rang a feto-fetohang - moralo o leka-lekaneng ho koloba ha mocheso o tlase, ho hanyetsa mocheso o phahameng, le ho mamella mocheso oa mocheso.

Aokai PTFE e hlahisitse litheipi tsa PTFE tse nang le mocheso o pharaletseng ka ho sebelisa melao-motheo e hlalositsoeng ka tlase. Sengoliloeng sena se hlalosa lintlha tse 'ne tsa mantlha tsa moralo: sebopeho sa lera la phetoho, sebopeho sa leoatle-sehlekehleke sa biphasic microstructure, gradient crosslinking, le li-filters tse kopantsoeng tse tsitsitseng mocheso.

Sebopeho sa Lera la Phetoho Pakeng tsa Substrate le Sekhomaretsi

1. Phephetso ea bohlokoa - PTFE holim'a matla

PTFE e na le matla a tlase haholo (18-20 dynes/cm). Ho roala ka ho toba ha sekhomaretsi ho atisa ho phunya nakong ea libaesekele tse futhumetseng ka lebaka la li-coefficients tse sa tšoaneng tsa ho atolosa mocheso - PTFE e atolosa 30-40x ho feta fiberglass.

2. Ts'ebetso ea holim'a metsi le primer anchoring

E le ho rarolla sena, sebaka sa PTFE se na le lik'hemik'hale tsa lik'hemik'hale tse nang le li-sodium-naphthalene complexes kapa phekolo ea plasma ho hlahisa li-bond tse peli tsa C = C le lihlopha tsa polar tse nang le oksijene. Kamora moo, silicone primer e inehetseng haholo e tšesaane haholo (mohlala, silane coupling agent e nang le vinyl) e sebelisoa ho theha 'borokho ba limolek'hule' sehokelong ka ho kopanya lik'hemik'hale.

3. Interlayer e thibelang khatello ea maikutlo

Ka mekhoa e itseng, ho na le lera le tlaase-modulus, le phahameng-ductility elastic intermediate layer (silicone e kang gel e nang le likarolo tse feto-fetohang) e kenngoa pakeng tsa lera le ts'ebetsong le lera le leholo la sekhomaretsi. Sena se monya khatello ea maikutlo e bakoang ke ho fetoha ha mocheso le ho thibela ho phahamisa sekhomaretsi.

Sea-Island Biphasic Microstructure Regulation

Matrix ea sekhomaretsi se ka sehloohong ke sistimi ea khale ea PSA e nang le resin ea silicone ea MQ (mohato oa sehlekehleke se hasaneng) le polysiloxane e boima ba limolek'hule (mokhahlelo o tsoelang pele oa leoatle).

1. MQ silicone resin - karolo ea sehlekehlekeng se thata

E fana ka momahano, matla a ho tšoara, le ho hanyetsa mocheso o phahameng oa mocheso. Taolo e nepahetseng ea karo-karolelano ea eona ea M / Q (ka tloaelo 0.6-0.9) le phallo ea boholo ba likaroloana e tiisa hore ho kenngoa ka mokhoa o ts'oanang ka har'a mohato o tsoelang pele ho theha libaka tsa 'mele tsa crosslinking.

2. Polysiloxane mohato o tsoelang pele - karolo ea leoatle le bonolo

E fana ka tack e potlakileng, ho koloba ha mocheso o tlase, le ho feto-fetoha ha maemo. Hangata ho khethoa rabara ea silicone ea methyl vinyl ea boima bo phahameng ba molek'hule kapa methyl phenyl vinyl.

3. Ts'ebetso e khethehileng bakeng sa mefuta e mengata ea mocheso

Palo e nyane ea likarolo tse phahameng tsa phenyl-content siloxane e kenyelelitsoe. Lihlopha tsa Phenyl li hatella mocheso o tlase oa crystallization ea polydimethylsiloxane, ho theola mocheso oa sekhomaretsi sa brittleness ka tlase ho -100 ° C. Ho sa le joalo, lihlopha tsa phenyl li matlafatsa khanyetso ea thermal-oxidative degradation lithempereichareng tse phahameng, e leng se nolofalletsang karolo e tsoelang pele ea leoatle hore e boloke elasticity e phahameng fensetereng e pharaletseng ea mocheso.

Multi-Layer kapa Gradient Crosslinking Design bakeng sa Thermal Shock Resistance

Ts'ebetso ea ho roala ka mekhahlelo e 'meli e amoheloa ho leka-lekanya ho hanyetsa mocheso o phahameng oa mocheso le mocheso o tlase oa mocheso:

1. Lera le ka hare (lehlakore la substrate)

batlang bo le holimo Bophahamo bo phahameng bo , bo fana ka matla a matla a ho ts'oara mocheso o phahameng le matla a momahaneng joalo ka moralo o thibelang ho kuta.

2. Lera le ka ntle (bonding bonding)

Ultra-low crosslink density e nang le liketane tsa limolek'hule tse tsamaeang haholo, tse netefatsang ho koloba ka potlako ho khomarela mocheso o tlase le tack e lekaneng ea pele.

Ntle le moo, gradient e tsoelang pele ea crosslink density ho tloha ka hare ho ea ka ntle lehlakoreng le thehoa ka har'a lesela le le leng ka mekhoa ea ho folisa, e kopanya ka mokhoa o se nang moeli libaka tse sebetsang tse thata le tse tenyetsehang.

Aokai PTFE e sebelisa thekenoloji ea gradient crosslinking ho etsa bonnete ba hore tepi e lula e feto-fetoha ho -70 ° C (ho nolofaletsa tack ea pele le ho lumellana le maemo) ha e ntse e boloka matla a kopantsoeng ho 260 ° C (ho thibela ho phalla le ho fetisoa ha sekhomaretsi).

Li-Fillers tsa Mocheso o tsitsitseng

Nano-scale fumed silica e hasantsoe hantle ka har'a matrix a sekhomaretsi bakeng sa matlafatso, e kopantsoe le mekhahlelo e 'meli ea li-filler tse sebetsang:

1. Li-additives tse thibelang mocheso

Cerium oxide, iron oxide, le li-scavengers tse ling li thibela ho thatafala ha oxidative ea liketane tsa mahlakoreng a siloxane le ho senyeha ha mokokotlo tlas'a mocheso o phahameng. Li-antioxidants tsena li eketsa bophelo ba ts'ebeletso ho 260 ° C.

2. Thermal conductive fillers

ea boholo ba micron , alumina Aluminium nitride , joalo-joalo, e tlosa mocheso ka potlako ho fokotsa ho bokellana ha mocheso ka hare le ho fokotsa botsofali. Sena ke sa bohlokoa ka ho khetheha bakeng sa lits'ebetso moo tepi e sebelisoang e le sebopeho sa mocheso kapa moo mocheso oa mocheso o tsoang ho substrate o ka potlakisang ho senyeha ha sekhomaretsi.

Li-filler tsohle li hloka ho fetisoa ha holim'a metsi kapa kalafo ea silane ho qoba ho phahama ho feteletseng ha modulus le ho thatafala ha sekhomaretsi ka mocheso o tlase.

Kakaretso - Network Adaptive for Extreme Conditions

Sekhomaretsi sa litheipi tsa PTFE tsa mocheso o pharaletseng ke motsoako oa platinum-catalyzed crosslinking microphase-separated network e kentsoeng le MQ resin chemical anchoring sites le hybrid phenyl long-chain siloxanes. Ka theknoloji ea gradient crosslinking le co-crosslinking technologies, e kopanya hantle:

• Ho koloba ka potlako le ho fetoha habonolo ha mocheso o tlase

• Tšebelisano e matla le e khahlanong le oxidation ka mocheso o phahameng

…ka har'a sekhomaretsi se le seng sa sekhomaretsi, se kopanang le litlhoko tse thata tsa tšebeliso ea mocheso o pharaletseng.

Aokai PTFE e etsa litheipi tsa PTFE tse nang le mocheso o moholo ka ho sebelisa moralo ona oa sekhomaretsi. Litlhaloso tsa tloaelo - ho kenyeletsoa botenya, crosslink gradient, le ho kenya li-filler - li fumaneha bakeng sa litlhoko tse khethehileng tsa kopo.

Sengoliloeng sena sa tekheniki se fanoa ke Jiangsu Aokai New Material Technology Co., Ltd.

Haeba u lakatsa ho ithuta lintlha tse qaqileng, maemo a ts'ebeliso le litharollo tse ikhethileng bakeng sa lethathamo la lihlahisoa tsa rona tse felletseng, ho kenyeletsoa masela a PTFE a futhumetseng, litheipi tsa sekhomaretsi tsa PTFE, mabanta a conveyor a PTFE, mabanta a mochini a se nang sekoli, lesela le koahetsoeng ka lehlakore le le leng la PTFE, lesela le nang le mocheso o phahameng oa mocheso le conveyor glass conveyor ka kopo. likanale tse ka tlase:

• Mong. Guo: +86 18944819998

• Mong. Liu: +86 13705266308

Re khomarela filosofi ea tšebeletso ea botsebi le botšepehi, e ikemiselitseng ho u fa litharollo tse felletseng tse felletseng le tšehetso e nahanang!