Waɗanne canje-canjen tsarin za su faru ga masana'anta na fiberglass mai rufi na PTFE a cikin mahalli masu lalata sinadarai?

PTFE-rufi fiberglass masana'anta ne wani hadadden abu sanya ta impregnating fiberglass zane da polytetrafluoroethylene (PTFE) watsawa sa'an nan sintering a high zafin jiki. Za a iya raba tsarinsa zuwa sassa biyu: PTFE shafi da fiberlass tushe masana'anta.

 

A cikin mahalli masu lalata sinadarai, sauye-sauyen tsarin sun dogara ne akan nau'in, taro, da zafin jiki na matsakaicin lalata, da kuma ko da farko yana kai hari kan rufin ko ma'auni. Bari mu bincika wannan Layer ta Layer daga hangen nesa na PTFE-rufi na fiberglass masana'anta:

 

I. Canje-canje a cikin Rubutun PTFE: Tsayayyen Barga a Mafi Yawancin Lamurra

 

PTFE sananne ne a matsayin 'Sarkin Filastik' saboda ƙaƙƙarfan haɗe-haɗe-haɗe-haɗe-haɗe-haɗe-haɗe da ƙarancin ƙarancin sinadarai na musamman. A cikin mahalli na yau da kullun masu lalata sinadarai (ciki har da tafasasshen ruwa aqua regia, sulfuric acid mai mai da hankali, nitric acid mai yawa, abubuwan kaushi na halitta, da sauransu), tsarin sarkar kwayoyin sa kusan babu wani canji na sinadari. Koyaya, a ƙarƙashin matsanancin yanayi masu zuwa, tsarin zai lalace:

 

1. Ƙarfe na Alkaki / Ƙarfafa Maganin Alkalin (misali, sodium, potassium, sodium hydroxide a yanayin zafi mai girma)

 

- Canje-canje na Tsari: Ƙarfe na Alkali zai fitar da atom na fluorine daga PTFE, yana haifar da amsawar dehydrofluorination. Ƙungiyoyin -CF₂- a cikin sarkar kwayoyin sun lalace, suna samar da haɗin gwiwar carbon-carbon (-C=C-) kuma daga baya suna haifar da carbonization.

- Bayyanar Macroscopic: Rubutun yana canzawa daga farar madara / mai canzawa zuwa launin ruwan kasa ko baƙar fata, ya rasa sassauci, ya zama gaggautsa, da foda. Wannan shi ne na yau da kullun lalata.

 

2. Ƙarfafan Ma'aikatan Fluorinating da Wasu Halogenated Hydrocarbons (ƙarƙashin zafin jiki da matsa lamba)

 

- Elemental fluorine (F₂), chlorine trifluoride (ClF₃), da makamantansu na iya karya kashin bayan carbon-carbon, haifar da rubewa.

- Ƙarƙashin zafin jiki da matsa lamba, wasu nau'in nau'in Freon na iya haifar da kumburi mai tsanani na PTFE. Ko da yake ba lallai ba ne wani abu ya faru ba, tsarin jiki yana fama da raguwar crystallinity, faɗaɗa ƙara, da kuma asarar ƙarfi saboda sarƙoƙin ƙwayoyin cuta da ake tilastawa baya.

 

3. Karfin Oxidizing Acids a Babban Zazzabi

 

- Tsawaita nutsewa a cikin fuming nitric acid ko sulfuric acid mai zafi na iya sannu a hankali oxidize saman PTFE, gabatar da ƙungiyoyin polar irin su carbonyl da ƙungiyoyin hydroxyl, da haɓaka makamashin saman. Koyaya, wannan ba a cika ganin shi a aikace-aikacen al'ada ba.

 

Mabuɗin Mahimmanci: Ga mafi yawan kafofin watsa labaru na sinadarai, rufin PTFE da kansa ba ya canzawa. Duk da haka, matsalar sau da yawa tana ta'allaka ne a cikin gaskiyar cewa ba ta da cikakkiyar ma'ana, haka kuma a cikin ilimin halittar jiki.

 

II. Canje-canje a cikin Fabric Tushen Fiberglas: Raunan Haɗin Gabaɗayan Abun

 

Babban abubuwan da ke cikin fiberglass sune silicon dioxide (SiO₂) da wasu ƙarfe oxides. Da zarar wannan ɓangaren ya lalace, tsarin gaba ɗaya na masana'anta mai zafin jiki zai rushe.

 

1. Mummunan Harin Hydrofluoric Acid (HF)

 

- Canje-canje na Tsarin: HF yana fuskantar takamaiman amsa tare da SiO₂: SiO₂ + 4HF → SiF₄↑ + 2H₂O. kwarangwal ɗin fiberglass yana narkar da kai tsaye kuma ya ɓace.

- Bayyanar Macroscopic: Filayen masana'anta da sauri ya rasa ƙarfi, ya zama kamar fata mai laushi tare da abin da ya rage kawai, yana tsagewa sauƙi a kan ja, tare da rabuwa mai girma tsakanin sutura da substrate. Wannan shine mafi firgitar lalata sinadarai don kayan tushen gilashin fiber. Muddin akwai ramuka a cikin rufi ko gefuna da aka fallasa, lalacewa yana da lalacewa.

 

2. Slow Etching by Strong Alkalis (musamman zafi mai da hankali alkalis).

 

- Canje-canje na Tsarin: OH⁻ ions suna karya haɗin gwiwar siloxane (-Si-O-Si-) a cikin hanyar sadarwar gilashi, suna samar da silicates masu narkewa. Fiber surface yana canzawa daga santsi zuwa m, tare da etching rami da fashe bayyana, da fiber diamita thinning, kuma a ƙarshe fracturing.

- Bayyanar Macroscopic: Ƙarfin yana ci gaba da raguwa, masana'anta ya zama mai raguwa, kuma lokacin da aka lanƙwasa, ƙananan zaruruwa suna fitowa ta cikin rufin, yana haifar da suturar da za ta fashe da kwasfa.

 

3. Acid Media (sai dai hydrofluoric acid)

 

- Canje-canjen Tsarin: Abubuwan acid na yau da kullun (hydrochloric acid, sulfuric acid, da sauransu) sun fi son fitar da abubuwan da ba silica ba (kamar aluminum, calcium oxides, da sauransu) daga fiberglass, barin galibi skeleton silica. Wannan tsari ana kiransa da sunan 'leaching,' yana samar da sifa mai ƙaranci akan saman fiber.

- Bayyanar macroscopic: masana'anta ya zama mai ƙarfi kuma yana da ƙarfi, tare da canje-canje a cikin raguwa, kodayake ana iya kiyaye sigar gabaɗaya. Ƙarfin yana raguwa saboda ƙaddamar da damuwa.

 

III. Canje-canje a Fuskar Haɗaɗɗen: Ƙirar Boye

 

Yanayin sinadarai sau da yawa ba sa kai hari kan gaba amma a maimakon haka suna shiga daga gefuna ko ta ƙananan lahani.

 

- Shigarwa da Delamination: Organic kaushi ko acid mafita shiga ta filholes, micro-cracks, ko yanke gefuna a cikin PTFE shafi, kai farmaki da fiberglass. Samfuran amsawa ko masu shigar da ruwa suna taruwa a wurin mu'amala, suna haifar da matsa lamba na osmotic, haifar da shafi na PTFE zuwa blister da delaminate daga fiberglass substrate akan babban sikelin.

- Lalacewar Damuwa: Ƙarfafawar zafin jiki mai zafi yana cikin tashin hankali yayin amfani. Lalacewar fiberglass ta hanyar kafofin watsa labaru na sinadarai (musamman alkalis mai ƙarfi) yana aiki tare da damuwa na inji, yana haifar da fashe don yaduwa cikin sauri tare da jagorar radial na fiber, wanda ke haifar da karyewar masana'anta kwatsam tare da tsattsauran ra'ayi mai ɓarna-karya a lokacin hutu.

 

A chemically m muhallin, da tsarin canje-canje na PTFE-rufi fiberglass masana'anta za a iya taƙaita a matsayin: da 'Sarkin Filastik' shafi ya zauna kusan a matsayin barga kamar dutse, yayin da fiberglass tushe masana'anta-da zarar shiga ko kai hari-zama da Achilles' diddige, kai ga kwarangwal dissolution, da dubawa daga cikin abu desolution.

 

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An bayar da bayanin da ke sama ta hanyar Jiangsu Aoke New Material Technology Co., Ltd.

 

Idan kuna son ƙarin koyo game da cikakkun sigogi, yanayin aikace-aikacen, da zaɓuɓɓukan gyare-gyare don cikakkun samfuran samfuranmu-ciki har da masana'anta na fiberglass mai rufi na PTFE, tef ɗin fiberglass mai rufi na PTFE, bel ɗin fiberglass mai rufaffiyar PTFE, bel ɗin da ba a haɗa sumul ba, bel ɗin mai gefe guda ɗaya, PTFE masana'anta mai tsayi, babban bel mai ɗaukar nauyi, babban bel mai ɗaukar nauyi, babban bel mai ɗaukar nauyi, babban bel mai juriya, PTFE masana'anta. masana'anta fiberglass resistant - don Allah jin daɗin tuntuɓar mu:

 

Layin waya:  

Mr. Guo: 18944819998  

Malam Liu: 13705266308  

 

A koyaushe muna ɗaukan ƙwararrun falsafar sabis da ke tafiyar da mutunci, kuma muna sadaukar da kai don samar muku da mafita ta tsayawa ɗaya da sabis na kulawa!