Pre-oxidized Polyacrylonitrile Fiber Nonwoven (abbreviated li PAN pre-oxidized fiber nonwoven) yog ib tug haumxeeb nonwoven ntaub ua los ntawm polyacrylonitrile (PAN) los ntawm spinning thiab pre-oxidation kev kho mob. Nws cov yam ntxwv tseem ceeb suav nrog kev kub siab ua haujlwm zoo, nplaim taws retardancy, corrosion tsis kam thiab qee lub zog txhua yam. Ntxiv mus, nws tsis yaj los yog poob ntawm qhov kub thiab txias, tab sis tsuas yog carbonizes maj mam. Yog li ntawd, nws yog dav siv nyob rau hauv scenarios uas tsis tshua muaj siab xav tau kev nyab xeeb thiab huab cua tsis kam. Cov hauv qab no muab cov lus piav qhia ntxaws ntxaws los ntawm ntau daim ntawv thov tseem ceeb, suav nrog daim ntawv thov scenarios, cov haujlwm tseem ceeb, thiab cov qauv khoom:
1. Kev tiv thaiv hluav taws thiab chaw cawm thaum muaj xwm ceev
Kev tiv thaiv hluav taws yog ib qho ntawm feem ntau daim ntawv thov scenarios ntawm pre-oxygenated filament non-woven npuag. Nws cov nplaim-retardant thiab high-temperature resistant zog tuaj yeem ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm. Cov ntawv thov tseem ceeb suav nrog:
Sab hauv txheej / tshav kub rwb thaiv tsev txheej ntawm cov khaub ncaws tiv thaiv hluav taws
Cov hluav taws kub hnyiab yuav tsum tau ua kom tau raws li ob qhov kev xav tau ntawm "nplaim hluav taws xob" thiab "kev rwb thaiv tsev kub": txheej txheej feem ntau siv cov nplaim hluav taws kub hnyiab zoo li aramid, thaum nruab nrab tshav kub rwb thaiv tsev txheej feem ntau siv ua ntej oxidized filament non-woven fabrics. Nws tuaj yeem tswj cov qauv kev ruaj ntseg ntawm qhov kub ntawm 200-300 ℃, zoo thaiv cov nplaim hluav taws xob thiab hluav taws xob hluav taws xob, thiab tiv thaiv cov neeg tua hluav taws cov tawv nqaij los ntawm kev scalded. Txawm tias thaum raug hluav taws kub, nws yuav tsis yaj los yog drips (tsis zoo li cov tshuaj fibers zoo tib yam), txo qhov kev pheej hmoo ntawm kev raug mob thib ob.
Nco tseg:Qhov ntom ntom ntawm pre-oxidized filament non-woven npuag (feem ntau 30-100g / ㎡) tuaj yeem hloov kho raws li qib kev tiv thaiv. Cov khoom lag luam nrog cov ntom ntom ntom ntom dua muaj cov teebmeem tshav kub zoo dua qub.
Cov khoom siv khiav ceev
➤ Daim pam khiav tawm hluav taws: Cov khoom siv hluav taws kub ceev rau cov tsev, khw muag khoom, subways thiab lwm qhov chaw. Nws yog ua los ntawm pre-oxygenated filament non-woven npuag thiab iav fiber ntau. Thaum raug hluav taws kub, nws sai sai ua ib qho "flame-retardant barrier", npog tib neeg lub cev los yog qhwv cov khoom siv hluav taws xob kom cais cov pa oxygen thiab tua hluav taws.
➤Fireproof daim npog qhov ncauj / lub ntsej muag ua pa: Hauv hluav taws, cov pa luam yeeb muaj cov pa roj ntau ntau. Pre-oxygenated filament non-woven npuag tuaj yeem siv los ua cov khoom siv rau cov pa luam yeeb txheej ntawm lub ntsej muag lub ntsej muag. Nws cov qauv kub-resistant tuaj yeem tiv thaiv cov khoom lim tsis ua haujlwm ntawm qhov kub thiab txias. Ua ke nrog cov txheej txheem carbon activated, nws tuaj yeem lim tawm qee yam tshuaj lom.
2. Industrial high-temperature resistant tiv thaiv teb
Nyob rau hauv kev lag luam chaw, huab cua ib puag ncig xws li kub siab, corrosion, thiab txhua yam kev sib txhuam yog feem ntau ntsib. Cov huab cua tsis kam ntawm pre-oxygenated filament non-woven npuag tuaj yeem daws cov teeb meem ntawm kev puas tsuaj yooj yim thiab luv luv ntawm cov ntaub ntawv ib txwm siv (xws li paj rwb thiab cov tshuaj fiber ntau).
➤ Rwb thaiv tsev thiab kev txuag hluav taws xob rau cov kav dej kub thiab khoom siv
High-temperature pipelines nyob rau hauv cov tshuaj, metallurgical thiab fais fab kev lag luam (xws li cov kav dej thiab lub qhov cub hluav taws xob) xav tau cov ntaub ntawv rwb thaiv tsev sab nrauv uas yog ob qho tib si " nplaim hluav taws kub" thiab "kub-insulating". Pre-oxygenated filament non-woven npuag tuaj yeem ua rau hauv yob lossis lub tes tsho thiab qhwv ncaj qha nyob ib ncig ntawm cov kav dej. Nws cov thermal conductivity tsawg (kwv yees li 0.03-0.05W / (m · K)) tuaj yeem txo cov cua sov thiab tiv thaiv cov txheej txheem rwb thaiv tsev los ntawm qhov kub thiab txias (cov tsoos pob zeb wool rwb thaiv tsev txheej yog nquag nqus dej thiab ua kom muaj plua plav ntau, thaum ua ntej cov pa oxygen filament non-woven npuag yog sib dua thiab tsis muaj plua plav).
Muaj cov ntaub ntawv lim dej (high-temperature flue gas filtration)
Qhov kub ntawm cov pa hluav taws xob los ntawm cov khib nyiab incineration thiab steel mills tuaj yeem ncav cuag 150-250 ℃, thiab nws muaj cov roj acidic (xws li HCl, SO₂). Cov ntaub lim dej zoo tib yam (xws li polyester, polypropylene) yog qhov ua rau softening thiab corrosion. Pre-oxygenated filament non-woven npuag muaj zog acid thiab alkali tsis kam thiab tuaj yeem ua rau hauv cov hnab lim kom ncaj qha lim cov pa roj cua kub. Nyob rau tib lub sijhawm, nws muaj qee qhov kev tuav pov hwm cov plua plav thiab feem ntau ua ke nrog PTFE (polytetrafluoroethylene) txheej los txhim kho corrosion kuj.
➤ Mechanical tiv thaiv gasket
Nyob nruab nrab ntawm cov plhaub sab nraud thiab cov khoom siv sab hauv ntawm cov khoom siv kub kub xws li lub cav thiab cov boilers, cov khoom siv gasket yog xav tau los cais cov kev vibrations thiab kub kub. Pre-oxygenated filament non-woven npuag tuaj yeem ua rau hauv cov khoom siv stamped. Nws qhov kub thiab txias tsis kam (ntev ntev ua haujlwm kub ≤280 ℃) tuaj yeem tiv thaiv cov gaskets los ntawm kev laus thiab deforming thaum lub sijhawm ua haujlwm ntawm cov khoom siv, thiab tib lub sijhawm tsis muaj kev sib txhuam.
3. Electronics thiab New Energy Fields
Cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tshiab muaj cov kev cai nruj heev rau "ntoo hluav taws xob" thiab "kev rwb thaiv tsev" ntawm cov ntaub ntawv. Pre-oxygenated filament non-woven npuag tuaj yeem hloov qee cov khoom siv hluav taws xob (xws li nplaim hluav taws kub nyhiab thiab iav fiber ntau daim ntaub)
➤ Nplaim-retardant separator/heat rwb thaiv tsev ncoo rau lithium roj teeb
Cov roj teeb lithium (tshwj xeeb tshaj yog cov roj teeb hluav taws xob) tuaj yeem ua rau "thermal runaway" thaum overcharged lossis luv luv, nrog rau qhov kub thiab txias tam sim ntawd nce siab tshaj 300 ℃. Pre-oxygenated filament non-woven npuag tuaj yeem siv los ua "kev nyab xeeb cais" rau cov roj teeb lithium, sandwiled ntawm qhov zoo thiab tsis zoo electrodes: nws muaj qee yam rwb thaiv tsev thaum lub sijhawm ua haujlwm los tiv thaiv luv luv ntawm qhov zoo thiab tsis zoo electrodes. Thaum thermal runaway tshwm sim, nws tsis yaj, muaj peev xwm tswj tau cov txheej txheem kev ncaj ncees, ncua kev kub diffusion, thiab txo qhov kev pheej hmoo ntawm hluav taws thiab tawg. Tsis tas li ntawd, sab hauv ntawm lub roj teeb pob lub casing kuj tseem siv cov ntaub ntawv ua ntej cov pa oxygen uas tsis yog-woven ua cov ntaub thaiv npog los tiv thaiv cov cua kub hloov ntawm cov roj teeb thiab cov casing.
➤ Cov ntaub ntawv rwb thaiv tsev rau cov khoom ntim khoom siv hluav taws xob
Kev ntim khoom ntawm cov khoom siv hluav taws xob xws li Circuit Court boards thiab transformers yuav tsum tau insulated thiab nplaim-retardant. Pre-oxygenated filament non-woven npuag tuaj yeem ua rau nyias (10-20g / ㎡) insulating nplooj ntawv thiab adhered rau saum npoo ntawm cov khoom. Nws qhov kub-kub kuj tuaj yeem hloov kho rau cov cua sov hauv zos thaum lub sijhawm ua haujlwm ntawm cov khoom siv hluav taws xob (xws li kev ua haujlwm kub ntawm lub tshuab hluav taws xob ≤180 ℃), thiab tib lub sijhawm ua tau raws li UL94 V-0 nplaim hluav taws retardant tus qauv los tiv thaiv luv luv Circuit Court thiab hluav taws kub ntawm cov khoom.
4. Lwm yam tshwj xeeb
Ntxiv nrog rau cov xwm txheej saum toj no, cov txheej txheem ua ntej cov pa oxygen tsis-woven npuag kuj ua lub luag haujlwm hauv qee qhov tshwj xeeb thiab niche:
➤Aerospace: High-temperature resistant composite material substrates
Lub teeb yuag thiab high-temperature resistant composite cov ntaub ntawv yuav tsum tau rau lub engine compartments ntawm aircraft thiab thermal tiv thaiv systems ntawm spacecraft. Pre-oxidized filament non-woven npuag tuaj yeem siv los ua "preform", ua ke nrog cov resins (xws li phenolic resin) los tsim cov khoom sib xyaw. Tom qab carbonization, nws tuaj yeem ua ntxiv rau hauv cov ntaub ntawv carbon fiber ntau, uas yog siv rau hauv qhov kub thiab txias resistant Cheebtsam ntawm spacecraft (xws li lub qhov ntswg cones thiab tis ua ntug) kom tiv taus qhov yaig ntawm high-temperature gas flows saum 500 ℃.
➤ Kev tiv thaiv ib puag ncig: Kub-kub cov khoom siv lim dej lim dej
Nyob rau hauv kev kho mob ntawm high-kub residues (nrog rau qhov kub ntawm kwv yees li 200-300 ℃) tom qab incineration ntawm kev kho mob pov tseg thiab pov tseg txaus ntshai, lim cov ntaub ntawv yuav tsum tau cais cov seem ntawm cov roj. Pre-oxygenated filament non-woven npuag muaj zog corrosion kuj thiab tuaj yeem ua rau hauv cov hnab lim kom lim cov khoom kub kub, tiv thaiv cov khoom siv lim los ntawm corroded thiab ua tsis tiav. Nyob rau tib lub sijhawm, nws cov khoom siv hluav taws xob tiv thaiv hluav taws xob tiv thaiv cov khoom siv hluav taws xob hauv cov seem los ntawm igniting cov khoom lim.
➤ Cov khoom siv tiv thaiv: Cov khoom siv rau kev ua haujlwm tshwj xeeb suits
Ntxiv nrog rau cov khoom siv hluav taws xob tua hluav taws, cov khaub ncaws ua haujlwm rau kev ua haujlwm tshwj xeeb xws li metallurgy, vuam, thiab tshuaj lom neeg kev lag luam kuj tseem siv cov ntaub ntawv ua ntej cov pa oxygen uas tsis yog-woven los ua ib lub hauv ob sab hauv ntawm cov khoom hnav yooj yim xws li cuffs thiab necklines los txhim kho cov nplaim taws hauv zos thiab hnav tsis kam, thiab tiv thaiv cov nplaim taws los ntawm cov khaub ncaws thaum ua haujlwm.
Hauv kev xaus, daim ntawv thov essence ntawmpre-oxygenated filament non-woven npuaglies nyob rau hauv kev cia siab rau nws cov yam ntxwv tseem ceeb ntawm " nplaim taws retardancy + high-temperature resistance" los hais txog kev nyab xeeb kev nyab xeeb lossis kev ua haujlwm tsis zoo ntawm cov khoom siv hauv ib puag ncig huab cua. Nrog rau kev txhim kho cov qauv kev nyab xeeb hauv kev lag luam xws li lub zog tshiab thiab kev tsim khoom siab, Nws daim ntawv thov scenarios yuav nthuav dav ntxiv rau hauv cov khoom ua kom zoo thiab muaj txiaj ntsig zoo ntxiv (xws li kev tiv thaiv microelectronic Cheebtsam thiab rwb thaiv tsev ntawm cov khoom siv hluav taws xob hloov tau yooj yim, thiab lwm yam).
Lub sij hawm xa tuaj: Sep-18-2025