Cov nplaim hluav taws kub retardants siv rau polyester fabrics feem ntau muaj phosphorus thiab nitrogen ntsiab. Thaum raug tshav kub, cov neeg ua haujlwm no tsim cov txheej txheem carbonaceous ua npuas ncauj rau ntawm daim ntaub; txheej txheej no ua raws li thermal barrier, blocks oxygen, suppresses pa luam yeeb, thiab tiv thaiv qhov tshwm sim ntawm molten dripping, yog li imparting zoo heev nplaim retardant zog. Cov kev tshawb fawb pom tau hais tias polyester fibers kho nrog intumescent nplaim retardants pom superior nplaim retardancy thiab tsis kam mus molten dripping. Txawm hais tias intumescent nplaim retardants tau tshawb fawb ntau heev rau cov ntawv thov hauv plastics, roj hmab, thiab hluavtaws polymers, lawv daim ntawv thov nyob rau hauv cov nplaim hluav taws retardant tiav ntawm polyester fabrics tseem txwv.
CovFR polyester ntaubFeem ntau ua tiav los ntawm ob txoj hauv kev: nplaim hluav taws hloov pauv ntawm cov thawj fibers thaum lub sij hawm spinning, los yog kev kho deg hloov kho siv rau cov ntaub npuag. Npuag nplaim nplaim retardant tiav- cais raws li cov txheej txheem hloov kho saum npoo- muab qhov zoo sib xws, xws li cov txheej txheem yooj yim thiab tus nqi qis. Ntawm cov khoom siv ntau yam, phosphorus- muaj cov nplaim hluav taws kub hnyiab tau tshwj xeeb hauv cov ntawv thov polyester vim lawv cov toxicity tsawg thiab ua haujlwm siab. Phosphorus-raws li nplaim taws retardants ua haujlwm feem ntau los ntawm kev txhawb cov carbonization ntawm polymer substrate, yog li ua rau lawv cov nplaim hluav taws kub hnyiab tau nyob rau hauv cov theem condensed.
Ib txwm muaj hluav taws kub retardant system feem ntau muaj peb yam: cov kua qaub, cov pa roj carbon, thiab cov pa roj. Cov kua qaub pib ua cov txheej txheem los ntawm kev tso cov kua qaub inorganic -xws li phosphoric acid los yog pyrophosphoric acid - uas ua raws li lub cev qhuav dej; Cov kua qaub no dhau los ua cov tshuaj tiv thaiv esterification nrog polyols, ua rau tag nrho lub cev yaj. Nyob rau tib lub sijhawm, cov pa roj tsim tawm tsis yog- cov pa roj carbon monoxide thiab dej vapor, ua rau lub cev molten ua npuas dej thiab nthuav dav. Raws li kev cuam tshuam ntawm cov dej dehydrating agents, cov pa roj carbon ntau dhau lub cev qhuav dej thiab carbonization, tsim cov inorganic residues thiab char; cov txheej txheem no tsav lub melting thiab expansion ntawm tag nrho cov system, thaum kawg tsim ib tug tiv thaiv carbonaceous npuas txheej.
Polyester fibers yog tus cwj pwm los ntawm lub zog tensile siab, nrog rau kev ua haujlwm kub zoo thiab kev ruaj ntseg tshuaj; yog li ntawd, lawv tau siv dav hauv tsev textiles thiab ntau yam khoom siv sab hauv. Txawm li cas los xij, polyester yog nquag yaj thaum raug tshav kub, ua rau muaj kev phom sij tseem ceeb. Yog li ntawd, kev tshawb fawb rau cov nplaim hluav taws xob thev naus laus zis rau polyester textiles - thiab kev txhim kho tom ntej ntawm cov khoom siv hluav taws xob hluav taws xob polyester - yog qhov tseem ceeb tshaj plaws.
Txoj kev tshawb no siv cov txheej txheem intumescent tsim los ntawm phosphorus -muaj cov nplaim hluav taws thiab nitrogen- uas muaj cov nplaim hluav taws (uas ua rau cov roj tsis muaj hluav taws xob tsis yog -). Los ntawm kev siv cov ntawv tsim nyog- cov txheej txheem kho, cov ntaub polyester uas ua rau pom cov nplaim hluav taws zoo heev thaum khaws cov kev xav tau zoo thiab nthuav tawm tsuas yog txo qis hauv kev tawg lub zog.