Lub hom phiaj ntawm cov teeb meem uas twb muaj lawm hauv kev tshawb fawb ntawm cov nplaim hluav taws xob thiab cov khoom siv tiv thaiv zoo li qub, ib txoj kev sib xyaw ua haujlwm siab fibers nrog cov nplaim hluav taws kub thiab cov organic conductive fibers tau muab tso rau pem hauv ntej, thiaj li tsim cov paj rwb nplaim hluav taws kub retardant fabrics nrog kev zoo heev. Cov khoom ntawm nplaim retardant thiab anti-static zog, siab zog hnav tsis kam thiab muag muag. Raws li peb txhua tus paub, textile fiber ntau li cov khoom siv polymer muaj cov rwb thaiv tsev siab, nws qhov ntim tshwj xeeb kuj yog 10 12 ~ 10 16 Ω·cm, ntau dua 10 8 ~ 10 9 Ω·cm anti-static qib, yog li nws cov ntaub yog yooj yim. tsim kom muaj ntau yam hluav taws xob zoo li qub hauv kev siv. Nyob rau hauv ib puag ncig kub thiab tawg, hluav taws xob hluav taws xob tawm hluav taws xob raws li qhov hluav taws xob feem ntau ua rau hluav taws kub thiab tawg puas tsuaj. Ntawm qhov tod tes, feem ntau ntawm cov ntaub ntawv fiber ntau yog cov khoom siv hluav taws xob los yog cov nplaim hluav taws, thiab lawv qhov ntsuas qhov ntsuas oxygen feem ntau yog nyob nruab nrab ntawm 17 thiab 25, qis dua qhov tsawg kawg nkaus tus kheej tua tus nqi ntawm 27 hauv huab cua. Thaum cov ntaub ntawv ntsib ntau yam igniting qhov chaw, nrog rau electrostatic tawm sparks, nws yuav hlawv sai sai thiab ua rau hluav taws. Yog li paj rwb nplaim taws retardant anti-static ntaub yog kev ruaj ntseg ntawm tib neeg. Raws li cov ntaub ntawv thiab kev tshawb fawb, nyob rau hauv xyoo tas los no, hauv kev tsim khoom thiab kev sib raug zoo lub neej,aramid ntawv chaw tsim tshuaj pauscov xwm txheej tshwm sim los ntawm kev kub nyhiab ntawm cov ntaub, tshwj xeeb tshaj yog cov khaub ncaws fabrics los ntawm electrostatic paug, thiab tom qab ntawd los ntawm kev kub hnyiab ntawm cov khaub ncaws nws tus kheej tau dhau los ua qhov hnyav dua, uas ua rau tib neeg lub neej txaus ntshai thiab ua rau lub xeev cov khoom raug kev puas tsuaj loj. Nyob rau hauv ntau lub teb chaws kev lag luam (xws li aerospace, aviation, riam phom, tshuaj lom neeg kev lag luam, mines) thiab ntau qhov chaw (xws li roj depot, natural gas los yog gas station, tsev kho mob chav ua hauj lwm, tsheb, aircraft) raws li zoo raws li kev tua hluav taws, tub rog thiab lwm yam tseem ceeb, vim qhov tshwj xeeb ntawm cov khoom lag luam thiab ib puag ncig, nws yog ib qho yooj yim los ua hluav taws los ntawm electrostatic paug sparks los yog lwm yam tinder ntawm ntaub. Yog li ntawd, txhawm rau ua kom muaj kev nyab xeeb ntawm tus kheej ntawm cov neeg ua haujlwm cuam tshuam, cov khaub ncaws tiv thaiv siv nyob rau hauv cov chaw ua haujlwm saum toj no thiab cov chaw yuav tsum muaj ob txoj haujlwm ntawm nplaim hluav taws tiv thaiv khaub ncaws thiab khaub ncaws tiv thaiv zoo li qub, tsis yog ib qho kev tiv thaiv ib leeg. Yog li ntawd, txoj kev loj hlob ntawm nplaim retardant anti-static ntaub yog heev tsim nyog.aramid ntawv chaw tsim tshuaj paus
CVC nplaim retardant ntaub yog tsim los ntawm Proban ammonia fumigating txheej txheem ntawm twill ntaub mus tas li xov, thickness ntawm 0.5 hli, gram hnyav ntawm 320 g / m2. Txoj kev Proban yog nplaim hluav taws-pov thawj paj rwb ntaub nrog THPC (4-hydroxymethyl chloride) nplaim-retardant cov ntaub ntawv los ntawm dipping, ziab, ammonia fumigation, oxidation, ntxuav, ziab thiab lwm yam txheej txheem. Qhov no tam sim no tau lees paub tias yog txoj hauv kev uas muaj cov nplaim hluav taws zoo, qhov poob qis hauv cov ntaub muaj zog thiab me ntsis cuam tshuam ntawm tes. Nws cov nplaim retardant mechanism yog nplaim hluav taws retardant txoj cai ntawm cov tshuaj charcoal cov tshuaj tiv thaiv, uas yog, nyob rau hauv lub kub kub tsim los ntawm combustion ntawm THPC nplaim retardant, ntawm ib sab, phosphoric acid yog tso tawm raws li lub cev barrier ntawm oxygen, nyob rau lwm yam. tes, cov phosphoric acid reacts nrog cellulose nyob rau hauv daim ntaub paj rwb, ua rau cov fiber catalyzed, dehydrated thiab carbonized, thiab cov polyphosphic acid pawg yog ruaj khov.aramid ntawv chaw tsim tshuaj paus
Qualitatively, nws tuaj yeem txo qhov tsim cov roj combustible thiab ua tiav lub hom phiaj ntawm nplaim hluav taws. 2.2 PVC zaj duab xis cov ntaub ntawv PVC zaj duab xis yog cov khoom siv zaj duab xis nyias nrog cov xim xiav dyeing tus neeg sawv cev ntxiv, lub thickness yog 0.14 hli, nws muaj cov nplaim hluav taws zoo. Nws cov nplaim retardant mechanism yog txoj kev xav ntawm cov roj uas tsis yog-combustible. PVC cua sov
HCl cuam tshuam nrog cov saw dawb radicals (H· thiab OH·) hauv cov nplaim taws, ua rau cov dawb radicals uas muaj zog heev tig mus rau hauv Cl atoms, thiab Cl atoms rho H atoms los ntawm cov roj polymer (RH) los ua HCl, yog li. inhibiting kev loj hlob ntawm cov nplaim taws. Cov mineralization
Kawm equation yog raws li nram no: h. + HC – H2 + Cl · OH · + HX – H2O + Cl, RH + X, –, HCl + R, 2.3 rau siab ceev PE zaj duab xis, PE zaj duab xis.
Post lub sij hawm: Dec-08-2022