Cov Khoom Siv Polyimide Nonwoven

I. Cov Yam Ntxwv Tseem Ceeb ntawm Polyimide Nonwoven Fabric: Tus Ua Yeeb Yam Zoo Tshaj Plaws hauv Ib puag ncig hnyav

Siv cov txiaj ntsig zoo ntawm cov khoom siv PI thiab cov khoom tshwj xeeb ntawm cov txheej txheem hydroentanglement, polyimide nonwoven ntaub qhia txog peb yam ntxwv tseem ceeb uas kov yeej cov kev txwv kev ua tau zoo ntawm cov organic thiab inorganic fibers hauv qhov kub siab, nplaim taws-retardant, huab cua-resistant, thiab kev sib xyaw ua ke:

1. Kev Ruaj Ntseg Kub Siab + Kev Tiv Thaiv Hluav Taws Kub Sab Hauv: Kev Tiv Thaiv Kev Nyab Xeeb Rau Ib puag ncig Muaj Kev Pheej Hmoo Siab

Kev tiv taus cua sov zoo dua piv rau cov ntaub ntawv ib txwm muaj: Tsis zoo li aramid (kub ntev: 204 ° C) thiab PTFE (kub ntev: 260 ° C), polyimide tswj tau qhov ruaj khov ntawm cov qauv hauv qab kev ua haujlwm tas mus li ntawm 260 ° C, nrog rau kev kam rau lub sijhawm luv luv txog li 400 ° C. Cov qauv fiber hydroentangled tseem tsis puas, tsis qhia txog kev laus lossis kev puas tsuaj tom qab ntau tshaj 1.5 xyoos ntawm kev siv tas mus li hauv cov ntawv thov xws li kev hlawv pov tseg thiab cov chaw kub siab hauv cov hlau, ua rau lub neej ua haujlwm ntau dua peb zaug ntawm cov ntaub ntawv aramid.

Kev tiv thaiv hluav taws kub zoo tshaj plaws: Tsis tas yuav siv cov tshuaj ntxiv uas tiv thaiv hluav taws kub, cov khoom siv no muaj cov pa oxygen tsawg (LOI) txog li 38% (ntau tshaj PTFE 28% thiab aramid 29%). Nws tsis kub hnyiab lossis yaj thaum raug hluav taws, nws tua nws tus kheej tam sim ntawd thaum tshem hluav taws tawm, thiab tsis tso cov pa phem tawm thaum hlawv. Qhov no tiv thaiv tau hluav taws kub, daws tau cov teeb meem tseem ceeb ntawm cov khoom siv tiv thaiv hluav taws kub ib txwm muaj xws li kev raug mob uas yaj thiab kev tso pa phem tawm.

2. Kev Tiv Thaiv Huab Cua Zoo + Kev Ruaj Ntseg Mechanical: Ib Lub Tsho Tiv Thaiv Ruaj Khov Rau Cov Xwm Txheej Hnyav

Kev tiv thaiv xeb thiab kev laus zoo heev: Cov ntaub no ua rau pom kev tiv thaiv zoo rau feem ntau cov kua qaub-raws li (piv txwv li, 10% sulfuric acid, 15% sodium hydroxide), cov kuab tshuaj organic, thiab UV hluav taws xob, nrog rau kev poob lub zog tensile ntawm ≤8% tom qab 60 hnub ntawm kev immersion. Nws tsis qhia txog kev tawg lossis kev puas tsuaj nyob rau hauv kev raug rau sab nraum zoov UV, av noo, thiab cua sov ntev, ua tiav lub neej ua haujlwm ntawm 8-10 xyoo hauv kev siv hluav taws xob nuclear thiab kev siv sab nraum zoov engineering - ntau dua 10 npaug ntawm cov ntaub ntawv polyester ib txwm muaj.

Cov khoom siv kho tshuab zoo tshaj plaws: Nrog rau qhov ceev ntawm 1.41 g / cm³ thiab lub zog tawg ntev ntawm 600 N / 5 × 20 cm, nws muab 20 npaug ntawm lub zog ntawm cov ntaub polypropylene ntawm tib qhov hnyav. Tom qab hydroentanglement, qhov kev tiv thaiv kua muag ncav cuag ≥50 N, nrog 100% lub zog ntub khaws cia. Qhov no kov yeej qhov tsis tshua muaj zog ntawm cov fibers basalt thiab qhov tsis txaus lub zog kho tshuab ntawm PTFE, ua rau nws haum rau kev siv hnyav thiab kev siv zog dynamic.

3. Kev Sib Txuas Lus Zoo + Kev Ua Haujlwm Yooj Yim: Lub Hauv Paus rau Kev Kho Kom Haum Rau Ntau Yam

Hydroentanglement khaws cov khoom siv ua haujlwm: Cov txheej txheem siab-siab spunlace ua kom cov fiber entanglement maj mam yam tsis muaj kev puas tsuaj cuam tshuam nrog koob punching. Cov khoom tshwm sim yog mos (hardness ≤50 Shore A) nrog zoo heev drape, tso cai rau kev txiav ncaj qha, xaws, thiab thermoforming. Qhov no daws cov teeb meem ua tiav ntawm cov koob PI felts ib txwm muaj, uas feem ntau yog tawv thiab brittle, thaum muab ib qho du, burr-dawb nto zoo tagnrho rau kev sib xyaw ua ke ntawm cov khoom.

Muaj peev xwm ua haujlwm tau zoo: Los ntawm kev hloov kho qhov chaw lossis cov txheej txheem sib xyaw, cov ntaub tuaj yeem muab ntau yam kev ua haujlwm siab heev. Piv txwv li, tom qab kev kho alkali thiab kev thauj khoom nrog Fe₃O₄ thiab Ag nanoparticles, nws ua tiav qhov ua tau zoo ntawm kev tiv thaiv hluav taws xob (77 dB) thiab kev cuam tshuam qis heev (≤-10 dB). Thaum ua ke nrog nanofibers, nws qhia txog kev lim dej kub thiab cov khoom tiv thaiv kab mob, ua tau raws li ntau yam kev xav tau hauv kev tiv thaiv tub rog thiab kev siv kho mob siab.

II. Cov Ntawv Thov Tseem Ceeb ntawm Polyimide Nonwoven Fabric: Cov Kev Daws Teeb Meem Tsis Hloov Tau rau Cov Xwm Txheej Siab Tshaj Plaws

Raws li cov yam ntxwv saum toj no, polyimide nonwoven ntaub tau dhau los ua cov khoom siv tseem ceeb hauv kev lim dej kub, kev tiv thaiv tshwj xeeb, khoom siv hluav taws xob / tub rog, thiab cov teb kho mob siab heev, ua kom haum rau kev pheej hmoo siab, kev thov siab, thiab kev siv lub neej ntev:

1. Kev Lim Dej Kub Thiab Kev Tiv Thaiv Ib Puag Ncig: Kev daws teeb meem huv si rau cov xwm txheej hnyav

Kev lim roj kub siab: Siv rau hauv cov hnab lim rau cov chaw hlawv pov tseg thiab cov lim plua plav hauv cov chaw hlawv hluav taws xob thee, cov ntaub no ntes tau cov plua plav me me thiab cov khoom me me ntawm 300 ° C, nrog rau kev lim kom raug ntawm 0.5 μm. Nws qhov LOI siab (38%) tiv thaiv kev pheej hmoo ntawm kev hlawv los ntawm potassium thiab sodium hauv cov tshauv ya, muab lub neej ua haujlwm ntau dua ob npaug ntawm cov ntaub ntawv lim PPS.

Kev lim dej kub siab hauv kev lag luam: Cov ntawv thov suav nrog cov ntaub lim rau cov pa roj av asphalt thiab cov hnab lim rau kev lim cov kuab tshuaj kub siab hauv cov nroj tsuag tshuaj. Cov ntaub no tiv taus 260 ° C kub thiab kev xeb ntawm cov kuab tshuaj organic, tsis nqus cov khoom lim, ua kom cov khoom huv, thiab ua kom pom kev ua haujlwm zoo dua los tiv thaiv kev txhaws, txo qhov tsis kam lim los ntawm 30% piv rau cov lim iav fiber ib txwm muaj.

2. Kev Tiv Thaiv Tshwj Xeeb thiab Kev Nyab Xeeb: Ib Txoj Kev Pab Thaum Muaj Kev Pheej Hmoo Siab

Cov khoom siv tiv thaiv tus kheej: Siv ua daim ntaub rau cov khaub ncaws tiv thaiv hluav taws kub hauv cov hlau thiab cov ntaub rau cov khaub ncaws tiv thaiv cua sov ntawm cov neeg tua hluav taws, cov khoom siv no tswj tau qhov ruaj khov ntawm 260 ° C, nrog rau kev ua kom sov ntawm tsuas yog 0.03 W / (m · K), zoo thaiv cov hluav taws xob kub siab. Nws cov qauv mos mos, ua pa tau muab kev nplij siab ntau dua li cov ntaub plaub pob zeb ib txwm muaj, ua rau nws zoo tagnrho rau kev ua haujlwm kub siab hauv metallurgy thiab kev tua hluav taws.

Cov khoom siv tiv thaiv thaum muaj xwm txheej ceev: Cov ntaub ntawv siv rau kev siv yog cov ntaub tsev pheeb suab uas tiv taus hluav taws thiab cov ntaub thaiv hluav taws kub rau cov chaw muaj kev pheej hmoo siab. Cov ntaub ntawv no tiv taus hluav taws kub thiab tiv taus huab cua tsis lwj thaum muaj huab cua ntub sab nraum zoov, cua sov, lossis raug UV ntau, ua lub ntaub thaiv ruaj khov. Nws qhov me me uas muab tais tau yooj yim ua rau siv tau sai thaum muaj xwm txheej ceev, tsim nyog rau kev tiv thaiv tub rog thiab kev teb rau cov xwm txheej tshuaj lom neeg.

3. Cov Khoom Siv Hluav Taws Xob thiab Cov Ntawv Siv Tub Rog: Lub Hauv Paus Kev Ua Haujlwm ntawm Cov Khoom Siv Siab

Cov ntaub thaiv hluav taws xob: Siv rau hauv cov ntaub thaiv radar thiab cov ntaub thaiv kev cuam tshuam rau cov khoom siv hluav taws xob, cov ntaub no ua tiav kev nqus hluav taws xob zoo thoob plaws 8.2–40 GHz broadband tom qab kev thauj khoom sib nqus thiab electroless silver plating, nrog rau kev tiv thaiv zoo txog li 77 dB. Nws tswj kev ua haujlwm ruaj khov ntawm 250 ° C, tiv thaiv cov khoom siv tub rog los ntawm kev cuam tshuam hluav taws xob thaum ua kom infrared stealth.

Cov khoom siv rwb thaiv tsev kub siab: Cov ntawv thov suav nrog cov ntaub rwb thaiv tsev rau cov cav dav hlau thiab daim ntaub encapsulation rau cov khoom siv hluav taws xob zoo tshaj plaws. Nrog lub zog dielectric ≥25 kV / hli ntawm 260 ° C thiab tsis muaj kev puas tsuaj hauv kev ua haujlwm rwb thaiv tsev, cov ntaub tiv taus xeb los ntawm roj thiab roj, tiv thaiv kev luv luv hauv cov khoom siv hluav taws xob thiab ua tau raws li qhov xav tau ntawm kev lag luam aerospace thiab kev lag luam tsheb zoo.

4. Cov Khoom Siv Kho Mob thiab Cov Ntaub Zoo Tshaj Plaws: Xyuas kom muaj kev nyab xeeb thiab kev huv si

Cov khoom siv tiv thaiv kev kho mob: Siv rau hauv cov khaub ncaws phais mob uas kub thiab tsis muaj kab mob, cov khoom siv no muaj kev sib raug zoo heev (tsis ua rau ua xua, tsis khaus) thiab tiv taus 134 ° C chav ua kom tsis muaj kab mob tsis muaj fiber ntau, ua raws li GMP cov qauv sterile. Nws ua kom muaj kev nyab xeeb hauv kev ua haujlwm hauv cov xwm txheej kho mob siab heev xws li kev hloov pauv lub cev thiab kev phais mob tsawg kawg nkaus.

Cov ntaub ua haujlwm tau zoo: Cov ntawv thov suav nrog cov khaub ncaws tiv thaiv hluav taws rau kev sib tw thiab cov khaub ncaws tiv thaiv rau kev lag luam nuclear. Cov ntaub uas tiv taus hluav taws tas mus li, ua pa tau, thiab xis nyob tsis ua rau khaus tawv nqaij thaum hnav ntev. Nws kuj tiv taus hluav taws xob thiab tshuaj lom neeg xeb, tiv thaiv cov neeg ua haujlwm los ntawm kev kub hnyiab thiab kev raug hluav taws xob hauv cov chaw tshwj xeeb xws li kev ua si nawv thiab kev kho hluav taws xob nuclear.

Txog Yongdeli: Ib Lub Chaw Tsim Khoom Tshwj Xeeb ntawm Polyimide Nonwoven Fabrics

Changshu Yongdeli Spunlaced Nonwoven Co., Ltd. ua haujlwm cov kab ntau lawm rau cov ntaub polyimide nonwoven, muab cov khoom lag luam tshwj xeeb nrog qhov hnyav txij li 60–500 g/㎡ thiab dav ntawm 0.2–3.2 m. Lub tuam txhab kuj muab cov kev xaiv tom qab kho suav nrog kev txheej hlau nplaum, nanofiber compositing, thiab singeing/calendering.

Yog xav tau cov qauv khoom lossis cov kev daws teeb meem tshwj xeeb, thov hu rau peb.