Kiimikooyinkee ayaa dumin kara PTFE Fabric Heerkulka Sare?

PTFE waxay caan ku tahay firfircooni la'aanta kiimikaad - oo inta badan loo yaqaan 'King of Plastics.' Waxay u adkaysataa ku dhawaad ​​dhammaan asiidhka, alkalis, iyo dareerayaasha heerkulka qolka. Si kastaba ha ahaatee, 'dhammaan dhammaan' maaha 'dhammaan.' Xaaladaha ba'an - heerkul sare, feejignaan sare, ama xaalad dhalaalaysa - kiimikooyinka qaarkood waxay weerari karaan PTFE. Xitaa marka PTFE lafteedu ay noolaato, substrate-ka fiberglass-ka ee hoose wuxuu noqon karaa mid nugul haddii dahaarka uu leeyahay cillado.

Fahamka xaddidaadyadan ayaa muhiim u ah doorashada dharka PTFE ee bay'ada kiimikada adag.

Aokai PTFE waxay tijaabisay maro PTFE-dahaarka leh oo ka dhan ah kiimikooyinka gardarada leh. Hagahan waxa uu sharxayaa waxa PTFE si toos ah u burburiya, waxa weerara substrate fiberglass-ka, iyo sida looga fogaado guul-darrooyinka.

Sida Daxalku u Dhaco - Laba Mechanism

Dharka heerkulku sareeyo ee PTFE waxa uu ka kooban yahay laba qaybood: dahaarka PTFE (dhuuban, aan dheg lahayn, kiimiko ahaan aan shaqaynayn) iyo substrate fiberglass ah (waxay bixisaa xoog laakiin waxay u nugul tahay kiimikooyinka qaarkood). Daxalka wuxuu u dhacaa laba siyaabood:

1. Nabaad guurka tooska ah ee daahan PTFE

Tani waxay ku dhacdaa oo keliya xaalado aad u daran - heerkul sare, feejignaan sare, ama xaalad dhalaalaysa. Heerkulka qolka, PTFE waa iska difaaci kartaa weerarka tooska ah ee kiimikada.

2. Daxalka substrate-ka fiberglaska iyada oo loo marayo cilladaha dahaarka

Kiimikooyinku waxay galaan godad fiiqan, xoqan, ama dildilaacyo yaryar oo ku jira daaha PTFE waxayna weeraraan fiilooyinka dhalada. PTFE lafteedu wali way u ekaan kartaa si fiican, laakiin maradu waxay lumisaa awoodda farsamada waxayna si fudud u jeexjeexi kartaa. Tani waa hab guuldarro caadi ah marka dahaarka uu dhaawacmo.

Kiimikooyinka Sida Tooska ah u Weerara Daboolka PTFE

Maaddooyinkani waxay la falgalaan PTFE lafteeda, laakiin kaliya xaalado daran.

1. Biraha alkali ee dhalaalay - kuwa ugu caansan

Soodhiyam dhalaalaysa (Na), potassium (K), iyo lithium (Li) atamyada fluorine-ka ee PTFE, taasoo keenaysa kaarboonaysiin, midab madow, iyo budada dusha walxaha. Xalka sodium-naphthalene ee loo isticmaalo etching PTFE wuxuu ku shaqeeyaa mabda'an.

• Saamaynta: Burbur dhammaystiran ee qaab dhismeedka PTFE.

• Xaaladaha: Wax kasta oo soo gaadha biraha alkali ee dhalaalay (ka sarreeya meelaha ay dhalaalayaan, tusaale, Na at 98°C).

• Talo soo jeedin: gabi ahaanba iska ilaali. Isticmaal filimka PTFE saafi ah oo keliya haddii ay lagama maarmaan tahay, iyo xitaa si taxadar leh.

2. Waxyaalaha fluorinating xooggan ee heerkul sare

Walxahani waxay sii dumin karaan PTFE kulayl sare hoostiisa:

• Gaaska fluorine (F₂): Wuxuu keenaa daxal tartiib tartiib ah heerkulka sare iyo cadaadiska.

• Interhalogen fluoride: Kiimikooyinka aadka u firfircoon sida chlorine trifluoride (ClF₃) iyo bromine pentafluoride (BrF₅) waxay kicin karaan falcelin aad u daran ama xitaa gubasho PTFE heerkul sare.

• Fluorideyada oksaydhaynta xooggan: Tusaale ahaan, xenon difluoride (XeF₂).

Talo soo jeedin: Ka ilaali dharka PTFE kiimikooyinkan, gaar ahaan heerkulka sare.

3. Ku dhalaali alkalis xooggan oo heerkul sare ah

Dhallaanka sodium hydroxide (NaOH) iyo potassium hydroxide (KOH) ayaa si tartiib ah u daxaliyay dusha PTFE ee ka sarreeya 300 ° C, taasoo horseedaysa luminta hydrophobicity iyo dhalaalka dusha sare. Ka hooseeya 300 ° C, PTFE waxay si fiican u adkaysataa alkalis. Heerkulka qolka, wax saameyn ah ma leh.

4. Budada birta ah ee firfircoon ee heerkulka sare leh

Budada Magnesium (Mg), budada aluminium (Al), iyo walxaha la midka ah waxay si adag uga falceliyaan PTFE heerkul sare, soo saara fluoride bir ah iyo kaarboon. Tani waa aasaaska qaar ka mid ah curiyeyaasha pyrotechnic iyo kuwa hurda ee ka kooban PTFE.

Kiimikooyinka Weerara Substrate-ka Fiberglass-ka iyadoo loo marayo Dahaarka cilladaha

Kiimikooyinkani kama falceliyaan PTFE, laakiin haddii dahaarka PTFE uu leeyahay wax dalool ah, xoqan, ama gees ah, way dhex geli doonaan oo burburin doonaan fiberglass-ka.

1. Hydrofluoric acid (HF) - kan ugu khatarta badan

Hydrofluoric acid aad bay u burburisaa fiberglass-ka. Waxay si degdeg ah ula falgashaa silikoon dioxide (qaybta ugu weyn ee galaaska) si ay u samayso gaaska tetrafluoride silicon, oo milmaan fiilooyinka galaaska.

• PTFE lafteedu waxay si fiican uga hortagtaa HF - PTFE waxaa badanaa loo isticmaalaa qalabka wax ka qabashada HF.

• Si kastaba ha ahaatee, dharka PTFE-da ku dahaaran ammaan uma aha HF ilaa dahaadhku gebi ahaanba ka xoroobayn godad (taas oo aad u adag in la dammaanad qaado). Cilad kasta waxay u oggolaan doontaa HF inay ku dhex gasho fiberglass-ka, taasoo keenaysa guuldarro dhar ah oo degdeg ah.

• Talo-soo-jeedin: Adeegga HF, isticmaal filimka PTFE saafi ah (aan lahayn xoojinta fiberglass) ama xargaha PTFE si buuxda u duuban oo leh godad eber ah oo la xaqiijiyay.

2. alkalis ku urursan heerkulka sare

Xalka sodium hydroxide (NaOH) ee aadka u urursan ee heerkulkiisu sarreeyo wuxuu baabi'in karaa muraayadda fiber-ka iyadoo loo marayo cilladaha dahaarka. Heerkulka qolka, alkalis dilute waa badbaado.

3. Aashitada fosfooraska ee ku urursan heerkulka sare

Xidhiidhka dheer ee aashitada fosfooraska ee kulul waxay sababi doontaa daxalka fiberglass-ka. Mar labaad, PTFE lafteedu way ka hortagtaa, laakiin cilladaha daboolka ayaa ah barta daciifka ah.

Xusuusinta Muhiimka ah ee Adeegga Kiimikada

1. Guuldarrooyinka badankoodu waxay ka yimaaddaan daalka farsamada ama gabowga kulaylka, ee maaha weerar kiimiko

Codsiyada warshadaha ee caadiga ah (dhirta kiimikaad, habaynta cuntada, iwm.), dharka PTFE way ku fashilmaan naaxinta, jeexjeexa, ama xaalufka kulaylka ka hor intaan daxalka kiimikaad noqon arrin. Dareen-la'aanta kiimikada PTFE waa run oo lagu kalsoonaan karo ku dhawaad ​​dhammaan kiimikooyinka caadiga ah ilaa 260°C.

2. Haddii ay tahay inaad xakamayso kiimikooyinka gardarada leh, isticmaal filim PTFE saafi ah

Codsiyada ku lug leh biraha alkali ee dhalaalay, HF kulul oo diirran, ama wakiilada fluorinating xooggan, PTFE-ku-xidhka fiberglass ah laguma talinayo . Halkii, isticmaal:

• Filimka PTFE ee saafiga ah (la daboolay ama la tuuray) iyada oo aan lahayn xoojinta fiberglass

• birta ah ee PTFE Qalabka

• PFA ama FEP (fluoropolymers kale oo leh iska caabin la mid ah laakiin sifooyin farsamo oo kala duwan)

3. Had iyo jeer tijaabi ka hor inta aan si buuxda loo isticmaalin

Haddii codsigaagu uu ku lug yeesho kiimikooyin aan ku jirin liiska 'ammaan' ee jaantusyada iswaafajinta caadiga ah, samee tijaabada ku habboonaanta walxaha hoos yimaada xaaladaha dhabta ah ee hawlgalka (heerkulka, xoogga saarista, muddada). Aokai PTFE waxay bixin kartaa muunado tijaabo ah si loo xaqiijiyo.

Soo koobid - Waafaqid Kiimikada Tixraaca Degdega ah

Aokai PTFE waxay bixisaa hagitaan ku habboon kiimikaad waxayna ku talin kartaa badeecada saxda ah - dharka PTFE-dahaarka leh ee codsiyada badankooda, ama filimka PTFE saafi ah ee adeegga kiimikada daran. Nala soo xidhiidh kiimikaad gaar ah, heerkulka, iyo wakhtiga soo-gaadhista.

Nuxurka kore waxaa bixiya Jiangsu Aokai New Materials Technology Co., Ltd.

Haddii aad rabto in aad wax badan ka ogaato faahfaahinta faahfaahsan, xaaladaha codsiga iyo xalalka loo habeeyey ee noocyada kala duwan ee alaabtayada, oo ay ku jiraan PTFE dhar heerkul sare ah, cajalado heerkul sare ah PTFE, suumanka mesh PTFE, suumanka mashiinka dhejiska ah, maro PTFE hal dhinac ah, heerkul sare oo u adkaysta gudbiyaha iyo suunka muraayada adkeysi leh

• Mudane Guo: +86 18944819998

• Mudane Liu: +86 13705266308

Waxaan had iyo jeer taageernaa falsafada xirfad-yaqaannimada iyo daacadnimada, waxaana naga go'an inaan ku siino xal-joojin iyo adeegyo tixgelin leh.