Dab tsi yog nplaim retardant nylon? Dab tsi yog cov qauv rau nplaim retardants? Polyamide, feem ntau hu ua nylon (PA), yog ib lub ntsiab lus dav dav rau cov thermoplastic resins uas muaj cov pab pawg amide rov ua dua (-NHCO-) ntawm cov pob txha molecular. Nylon muaj zoo txhua yam khoom, hluav taws xob zog, Thaum tshav kub kub kuj, toughness, roj kuj, coj kuj, nws tus kheej-lubricity, tshuaj kuj thiab lwm yam zoo heev zog, thiab yog dav siv nyob rau hauv ntau yam teb.
Cov nplaim retardant khoom ntawm unmodified nylon yog tsis zoo. Nws ntsug combustion tsuas tuaj yeem ncav cuag UL94 V-2, thiab nws cov pa ntsuas ntsuas yog li 24. Cov dej ntws los kuj yuav raug tsim thaum lub sij hawm combustion. Nws yog cov khoom siv flammable, uas yooj yim heev rau hlawv thaum siv. Yooj yim ua rau hluav taws. Tshwj xeeb tshaj yog nyob rau hauv cov khoom siv hluav taws xob, hluav taws kub nylon yog suav tsis txheeb, ua rau poob loj heev. Yog li ntawd, cov nplaim hluav taws-retardant hloov kho ntawm nylon tau dhau los ua ib lub ntsiab lus ntawm kev txhawj xeeb thiab kev tshawb fawb niaj hnub no' kev kawm thiab kev lag luam voj voog.
Feem ntau siv halogen-dawb nplaim retardants nyob rau hauv nylon yog liab phosphorus thiab melamine ntsev. Liab phosphorus muaj cov nplaim hluav taws kub hnyiab tau zoo thiab tuaj yeem txhim kho qhov arc tsis kam ntawm cov khoom, tab sis nws cov khoom siv cia thiab xim txwv tsis pub nws daim ntawv thov hauv nylon, thiab feem ntau tsuas yog siv rau nylon 6. Lwm cov nplaim hluav taws tsis muaj halogen siv hauv nylon yog melamine. ntsev, feem ntau yog melamine urate thiab phosphate. Lawv muaj cov nplaim hluav taws zoo, tab sis tsis zoo thermal stability, thiab vim tias lawv yooj yim nqus dej noo, lawv muaj cov khoom siv hluav taws xob tsis zoo hauv qhov chaw ntub dej.
Txiav txim tus qauv ntawm cov nplaim hluav taws
Cov txheej txheem xeem thiab cov qauv:
Cov qauv txiav txim:
A) Tom qab tau ignited ntawm ib qho qauv kuaj, qhov kub yuav tsum tsis txhob kis mus rau ntawm ntug ntawm cov ntaub los yog lub Upper kawg ntawm cov ntaub.
B) Ib qho qauv kuaj yuav tsum tsis txhob tsim lub qhov tom qab ignition.
C) Nyob rau hauv ib qho qauv kuaj, yuav tsum tsis txhob muaj cov dej kub kub los yog cov khoom molten poob tom qab ignited.
D) Lub sijhawm nplaim taws yuav tsum tsawg dua lossis sib npaug li 2 vib nas this.
e) Lub sijhawm smoldering yuav tsum tsawg dua lossis sib npaug li 2 vib nas this.