Spunlace nonwoven ntawm pre-oxygenated fiber ntau
Segment kev lag luam:
Cov yam ntxwv ntawm Pre-Oxygenated Fiber:
· Qhov kawg nplaim nplaim Retardancy: Qhov txwv oxygen Performance index (LOI) feem ntau yog> 40 (qhov feem ntawm cov pa oxygen nyob rau hauv cov huab cua yog kwv yees li 21%), deb tshaj li cov pa hluav taws-retardant fibers (xws li nplaim-retardant polyester nrog LOI ntawm txog 28-32). Nws tsis yaj los yog poob thaum raug hluav taws kub, tua nws tus kheej tom qab tshem tawm qhov hluav taws kub, thiab tso pa tawm me ntsis thiab tsis muaj cov pa phem thaum combustion.
· High-Temperature Stability: Lub sij hawm ntev siv kub tuaj yeem ncav cuag 200-250 ℃, thiab lub sij hawm luv luv tuaj yeem tiv taus 300-400 ℃ siab kub (tshwj xeeb nyob ntawm cov khoom siv raw thiab pre-oxidation degree). Nws tseem tuav cov qauv kev ncaj ncees thiab cov khoom siv kho tshuab hauv qhov chaw kub kub.
· Chemical Resistance: Nws muaj qee yam kev tiv thaiv rau cov kua qaub, alkalis, thiab cov kuab tshuaj organic, thiab tsis yooj yim eroded los ntawm cov tshuaj, haum rau siv nyob rau hauv hnyav ib puag ncig.
· Tej yam khoom siv tshuab: Nws muaj qee yam tensile lub zog thiab toughness, thiab tuaj yeem ua rau hauv cov ntaub ntawv nrog cov qauv ruaj khov los ntawm cov txheej txheem nonwoven fabric processing (xws li koob-punching, spunlace).
II. Ua Technology ntawm Pre-Oxygenated Nonwoven Fabrics
Pre-oxygenated fiber ntau yuav tsum tau ua tiav rau hauv cov ntawv txuas ntxiv zoo li cov ntaub ntawv los ntawm cov txheej txheem nonwoven fabric processing. Cov txheej txheem muaj xws li:
· Txoj kev siv rab koob: Los ntawm kev tho cov fiber ntau nrog cov koob ntawm lub tshuab rab koob, cov fibers cuam tshuam thiab ntxiv dag zog rau ib leeg, tsim cov ntaub nonwoven nrog qee qhov tuab thiab lub zog. Cov txheej txheem no tsim nyog rau kev tsim cov khoom muaj zog, high-density pre-oxygenated fiberless fabrics, uas tuaj yeem siv rau hauv cov xwm txheej uas xav tau kev txhawb nqa (xws li fireproof panels, high-temperature filtration material).
· Spunlaced Method: Siv cov dav hlau dej siab los cuam tshuam cov fibers mesh, cov fibers interweave thiab kev sib koom ua ke. Lub spunlaced pre-oxygenated ntaub muaj ib tug softer xav thiab zoo breathability, thiab yog haum rau siv nyob rau hauv lub puab txheej ntawm cov khaub ncaws tiv thaiv, saj zawg zog fireproof padding, thiab lwm yam.
· Thermal Bonding / Chemical Bonding: Los ntawm kev siv cov fibers tsawg-melting-point fibers (xws li nplaim-retardant polyester) los yog nplaum los pab txhawb, qhov nruj ntawm cov ntshiab pre-oxygenated fiberless ntaub yuav txo tau, thiab cov kev ua tau zoo tuaj yeem txhim kho (tab sis nco ntsoov tias qhov kub thiab txias tsis kam ntawm cov nplaum yuav tsum tau ua kom haum rau cov khoom siv ua ntej).
Nyob rau hauv qhov tseeb, pre-oxidized fibers feem ntau tov nrog lwm cov fibers (xws li aramid, nplaim-retardant viscose, iav fiber) kom sib npaug nqi, xav thiab kev ua tau zoo (piv txwv li, ntshiab pre-oxidized non-woven npuag yog ib qho nyuaj, tab sis ntxiv 10-30% nplaim-retardant viscose tuaj yeem txhim kho nws cov softness).
III. Daim ntawv thov tshwj xeeb scenarios ntawm pre-oxidized fiber ntau non-woven npuag
Vim nws cov nplaim-retardant thiab high-temperature resistant zog, pre-oxidized fiber non-woven npuag plays lub luag hauj lwm tseem ceeb nyob rau hauv ntau yam teb:
1. Kev tua hluav taws thiab tiv thaiv tus kheej
· Cov neeg tua hluav taws lub hauv ob sab phlu / txheej txheej: Pre-oxidized non-woven npuag yog nplaim hluav taws, kub-resistant thiab breathable, thiab tuaj yeem siv los ua cov txheej txheem tseem ceeb ntawm kev tua hluav taws los thaiv kev hloov ntawm cov nplaim taws thiab kub siab, tiv thaiv cov tawv nqaij ntawm cov neeg tua hluav taws; Thaum ua ke nrog aramid, nws tuaj yeem txhim kho hnav tsis kam thiab tsim kua muag.
· Vuam / metallurgical cov cuab yeej tiv thaiv: Siv rau vuam daim npog qhov ncauj, cov hnab looj tes tiv thaiv tshav kub, cov neeg ua haujlwm metallurgical aprons, thiab lwm yam., los tiv thaiv cov nplaim taws ya thiab kub-kub (nrog rau lub sij hawm luv luv ntawm qhov kub thiab txias tshaj 300 ° C).
· Cov khoom siv khiav tawm thaum muaj xwm ceev: xws li daim pam hluav taws, cov ntaub ntawv lim dej tawm, uas tuaj yeem qhwv lub cev lossis lim cov pa taws thaum muaj hluav taws (tsawg pa taws thiab tsis muaj tshuaj lom yog qhov tseem ceeb).
2. Muaj kev tiv thaiv kub thiab rwb thaiv tsev
· Cov ntaub ntawv rwb thaiv tsev: Siv los ua cov hauv ob sab hauv ntawm cov kav dej kub, cov ntaub thaiv hluav taws xob boiler, thiab lwm yam., kom txo tau cov cua sov los yog hloov mus ntev (ntev tsis kam mus rau 200 ° C thiab saum toj no ib puag ncig).
· Cov khoom siv hluav taws xob hauv tsev: Raws li cov txheej txheem ntawm cov ntaub thaiv hluav taws kub thiab cov phab ntsa hauv cov tsev siab siab, lossis cov khoom siv cable, kom ncua kev sib kis ntawm hluav taws (ua tau raws li GB 8624 hluav taws kub tiv thaiv qib B1 thiab siab dua qhov yuav tsum tau ua).
· Kev tiv thaiv cov cuab yeej kub kub: xws li cov ntaub thaiv qhov cub, cov hluav taws kub rwb thaiv tsev npog rau cov kiln thiab qhov cub, tiv thaiv cov neeg ua hauj lwm los ntawm qhov kub kub ntawm cov khoom siv.
3. High-temperature filtration fields
· Cov pa luam yeeb muaj roj pom: Qhov kub ntawm cov pa taws los ntawm cov khib nyiab incinerators, steel mills, tshuaj tiv thaiv rauv feem ntau ncav cuag 200-300 ° C, thiab muaj cov roj acidic. Pre-oxidized non-woven npuag yog resistant rau kub thiab corrosion, thiab yuav siv tau raws li lub hauv paus khoom rau lim hnab los yog lim cylinders, zoo lim.
4. Lwm yam xwm txheej tshwj xeeb
Aerospace auxiliary cov ntaub ntawv: siv los ua fireproof rwb thaiv tsev txheej nyob rau hauv spacecraft cabins thiab tshav kub rwb thaiv tsev gaskets nyob ib ncig ntawm lub foob pob hluav taws cav (uas yuav tsum tau ntxiv dag zog rau cov high-temperature resistant resins).
Cov khoom siv hluav taws xob hluav taws xob: Siv los ua cov khoom siv hluav taws xob hauv cov hluav taws xob kub kub thiab cov khoom siv hluav taws xob, lawv tuaj yeem hloov cov khoom siv asbestos ib txwm muaj (tsis yog carcinogenic thiab ntau tus phooj ywg ib puag ncig).
Iv. Qhov zoo thiab kev loj hlob Trends ntawm Pre-Oxidized fiber Nonwoven Fabrics
Qhov zoo: Piv nrog cov khoom siv hluav taws xob tsis zoo (xws li asbestos thiab iav fiber), pre-oxygenated fiber non-woven npuag yog non-carcinogenic thiab muaj qhov yooj yim dua. Piv nrog rau cov nqi siab fiber ntau xws li aramid, nws muaj tus nqi qis (kwv yees li 1/3 txog 1/2 ntawm aramid) thiab tsim nyog rau batch daim ntawv thov nyob rau hauv nruab nrab thiab high-end nplaim-retardant scenarios.
Txoj Kev: Txhim kho qhov compactness thiab pom efficiency ntawm non-woven fabrics los ntawm fiber ntau refinement (xws li nplua denier pre-oxygenated filaments, txoj kab uas hla <10μm); Tsim cov txheej txheem ua haujlwm zoo ib puag ncig nrog cov formaldehyde tsawg thiab tsis muaj cov nplaum; Ua ke nrog nanomaterials (xws li graphene), nws ntxiv txhim khu kev kub-kub thiab antibacterial zog.
Hauv kev xaus, daim ntawv thov ntawm pre-oxidized fibers nyob rau hauv non-woven fabrics hinges ntawm lawv cov khoom sib xyaw ntawm " nplaim taws retardancy thiab high-temperature resistance" los daws qhov ua tsis tau zoo ntawm cov khoom siv ib txwm muaj nyob rau hauv high-temperature thiab qhib nplaim taws. Nyob rau hauv lub neej yav tom ntej, nrog kev kho dua tshiab ntawm cov qauv kev nyab xeeb thiab kev tiv thaiv hluav taws, lawv daim ntawv thov scenarios yuav nthuav dav ntxiv.
