Nplaim retardant nylon

Polyamide, feem ntau hu ua nylon (PA), yog ib lo lus dav dav rau cov thermoplastic resins uas muaj cov pab pawg amide rov ua dua (- NHCO -) ntawm cov saw tseem ceeb molecular. Nylon yog dav siv nyob rau hauv ntau yam teb vim nws zoo heev mechanical zog, hluav taws xob zog, tshav kub tsis kam, toughness, roj kuj, hnav tsis kam, nws tus kheej lubrication, tshuaj tsis kam, thiab lwm yam zoo heev zog.
Unmodified nylon muaj cov nplaim hluav taws tsis zoo, thiab nws txoj kab hluav taws xob ntsug tsuas tuaj yeem ncav cuag UL94 V-2 qib, nrog rau cov pa ntsuas ntawm ib ncig ntawm 24. Nws kuj tsim cov tee dej thaum lub sij hawm combustion, ua rau nws cov khoom siv hluav taws xob uas muaj hluav taws kub heev thaum lub sij hawm hluav taws kub. siv. Tshwj xeeb tshaj yog nyob rau hauv kev lag luam ntawm cov khoom siv hluav taws xob, muaj ntau qhov hluav taws kub uas tshwm sim los ntawm nylon, ua rau muaj kev puas tsuaj loj. Yog li ntawd, cov nplaim hluav taws hloov pauv ntawm nylon tau dhau los ua ib qho kev txhawj xeeb thiab kev tshawb fawb hauv cov zej zog kev kawm thiab kev lag luam niaj hnub no.
Qhov dav siv halogen-dawb nplaim retardants hauv nylon yog liab phosphorus thiab melamine ntsev. Liab phosphorus muaj cov nplaim hluav taws kub hnyiab tau zoo thiab tuaj yeem txhim kho lub arc tsis kam ntawm cov khoom, tab sis nws cov khoom siv cia thiab xim txwv tsis pub nws daim ntawv thov hauv nylon, feem ntau tsuas yog siv hauv nylon 6. Lwm cov nplaim hluav taws tsis muaj halogen siv hauv nylon yog melamine ntsev, feem ntau melamine urate thiab phosphate. Lawv muaj cov nplaim hluav taws xob zoo, tab sis lawv cov thermal stability tsis zoo, thiab vim lawv nyiam nqus dej noo, lawv cov hluav taws xob ua haujlwm tsis zoo hauv qhov chaw ntub dej.
Halogen-dawb nplaim retardant rau nylon: melamine urate feem ntau yog MC
MC yog cov hmoov dawb crystalline hmoov nrog cov roj nplua nyeem, uas yog ib qho tsis muaj nitrogen dawb halogen-dawb nplaim retardant nrog kev ua tau zoo thiab tseem muaj roj nplua nyeem zoo rau cov yas. Piv nrog halogen-muaj nplaim retardants, MC nplaim retardants muaj qhov zoo xws li tsis tshua muaj toxicity, siab nplaim taws retardancy efficiency, muaj zog applicability, thiab tus nqi qis, thiab tuaj yeem siv dav rau nplaim taws retardancy ntawm polyamide thiab nws cov khoom siv roj hmab. MC yog tshwj xeeb tshaj yog haum rau kev siv cov ntshiab nylon 6 thiab 66, uas tuaj yeem ua tau yooj yim UL 94 V -0 nplaim retardant nyhuv. Nws yog qhov kev lag luam tshaj plaws, siv tau, thiab ib puag ncig tus phooj ywg hluav taws kub retardant xaiv rau PA nylon