Kev hlawv ntawm cov polymers yog ib qho kev kub ntxhov thiab nyuaj heev, uas yog cov pa luam yeeb lossis nplaim taws kub hnyiab. Cov tshuaj tua hluav taws yog ib chav kawm ntawm cov khoom ntxiv uas tiv thaiv kev hlawv ntawm cov yas lossis tiv thaiv kev nthuav dav ntawm nplaim taws. Cov nyhuv tua hluav taws ntawm cov tshuaj tua hluav taws yog los tiv thaiv lossis txwv tsis pub tus nqi ntawm kev hloov pauv lub cev lossis tshuaj hauv cov txheej txheem hlawv ntawm cov ntaub ntawv polymeric. Tshwj xeeb, cov nyhuv tua hluav taws feem ntau pom hauv cov hauv qab no.
nplaim retardant nyob rau hauv lub polymer combustion txheej txheem ntawm nplaim retardant nyhuv:
Nplaim taws retardant nplaim retardant - cov nyhuv tshav kub
Lub luag haujlwm ntawm cov nyhuv nqus cua sov yog ua kom cov khoom siv polymer kub tuaj yeem tshwm sim nrog kev nyuaj.
Piv txwv li, borax muaj 10 molecules ntawm crystalline dej, raws li kev tso tawm ntawm crystalline dej mus ntes 141.8kJ / mol ntawm tshav kub, yog li cua sov nqus kom qhov kub ntawm cov khoom yog inhibited, uas ua rau cov nplaim retardant nyhuv.
nplaim retardant nplaim retardant - npog nyhuv
Cov nyhuv yog los tsim cov txheej txheej ruaj khov ntawm qhov kub thiab txias los yog decompose los tsim cov khoom ua npuas dej uas npog cov khoom siv polymeric. Qhov no ua rau nws nyuaj rau cov cua sov uas tsim los ntawm combustion nkag mus rau sab hauv ntawm cov khoom thiab rau cov combustible gases generated los ntawm thermal decomposition ntawm cov khoom polymer kom dim. Nws ua raws li huab cua barrier rau cov khoom, yog li inhibiting cov khoom tawg thiab ua tiav cov nplaim retardant nyhuv.
nplaim retardant nplaim retardant - dilution nyhuv
Cov khoom no tuaj yeem tsim cov roj tsis muaj hluav taws xob ntau thaum decomposed los ntawm tshav kub, yog li cov roj hluav taws xob uas tsim los ntawm cov khoom siv polymer thiab cov pa oxygen hauv huab cua yog diluted thiab tsis ncav cuag cov nplaim taws ntau.
nplaim retardant nplaim retardant - hloov nyhuv
Cov nyhuv yog los hloov hom thermal decomposition ntawm cov khoom siv polymer, yog li inhibiting cov khoom siv hluav taws xob.
nplaim retardant nplaim retardant - inhibition nyhuv
Traping lub active intermediates ntawm combustion tshwm sim, xws li HO- thiab H-, inhibits dawb radical saw tshua thiab txo tus nqi ntawm combustion kom txog rau thaum cov nplaim taws yog extinguished.
Nplaim taws retardant nplaim retardant - txhim kho cov nyhuv
Qee cov ntaub ntawv tsis muaj cov nplaim hluav taws kub hnyiab yog siv ib leeg lossis muaj cov nplaim hluav taws me me, tab sis ntau cov ntaub ntawv tuaj yeem siv los txhim kho cov nplaim hluav taws xob, xws li antimony trioxide thiab halogen compounds siv ua ke.
Cov txheej txheem tiv thaiv hluav taws hauv cov txheej txheem polymer combustion:
Nplaim retardant mechanism - roj theem nplaim retardant mechanism
Vapor theem nplaim hluav taws retardant tshuab xa mus rau cov nplaim hluav taws xob cuam tshuam los ntawm kev cuam tshuam lossis kev cuam tshuam cov saw hlau combustion hauv cov roj theem. Vapor theem nplaim retardancy feem ntau muaj xws li:
- Cov dawb radical inhibitors yog tsim thaum cov khoom siv hluav taws xob hluav taws xob raug cua sov lossis kub hnyiab, yog li cuam tshuam cov tshuaj tiv thaiv kab mob sib kis.
- Kev tsim cov khoom zoo thaum cov khoom siv hluav taws xob kub kub los yog kub hnyiab, uas txhawb kev khi ntawm cov dawb radicals los txiav cov saw hlau combustion.
- Kev tso tawm ntau ntawm cov pa roj inert lossis siab ntom ntom vapor thaum cov khoom siv hluav taws xob kub kub los yog kub hnyiab.
Nplaim retardant mechanisms - condensed theem nplaim retardant mechanisms
Condensed theem nplaim retardancy yog hais txog cov nplaim retardant nyhuv uas ua los ntawm kev ncua los yog cuam tshuam cov thermal decomposition ntawm nplaim retardant cov ntaub ntawv nyob rau hauv lub condensed theem. Condensed theem nplaim retardancy feem ntau muaj xws li:
- Cov nplaim hluav taws kub hnyiab uas cuam tshuam los yog cuam tshuam cov thermal decomposition ntawm cov roj hluav taws xob thiab cov radicals uas tuaj yeem tsim tau thaum lub sij hawm coalescence txheej txheem
- Inorganic fillers nrog lub peev xwm loj tshwj xeeb hauv cov khoom siv hluav taws xob hluav taws xob, uas ua rau cov khoom tsis tshua muaj peev xwm ncav cuag qhov kub ntawm thermal decomposition kub los ntawm kev cia kub thiab thermal conductivity.
- Lub thermal decomposition ntawm nplaim hluav taws xob absorbs tshav kub, kom qhov kub thiab txias ntawm cov nplaim retardant khoom yog slowed los yog ncua.
- Thaum cov nplaim hluav taws kub hnyiab, nws tsim cov pa roj carbon monoxide rau ntawm nws qhov chaw, uas yog qhov nyuaj rau hlawv, insulates cov cua sov thiab oxygen, thiab tiv thaiv cov roj combustible los ntawm kev nkag mus rau theem roj.
Nplaim retardant mechanism - cuam tshuam ntawm tshav kub pauv hluav taws xob retardant mechanism
Qhov cuam tshuam ntawm kev sib pauv hluav taws xob hluav taws xob cuam tshuam txhais tau hais tias ib feem ntawm cov hluav taws xob tsim los ntawm cov khoom siv hluav taws xob hluav taws xob raug tshem tawm, yog li cov khoom siv tsis tuaj yeem tswj cov thermal decomposition kub thiab yog li tsis tuaj yeem tswj cov khoom siv hluav taws xob, thiab yog li cov combustion yog self-extinguishing.
Xav paub ntxiv txog SINOYQX Melamine Cyanurate (MCA), thov hu rau peb ntawm email: [email protected] , lossis hu rau peb ntawm: + 86-28-8411-1861.
Qee cov duab thiab cov ntawv luam tawm los ntawm Is Taws Nem, thiab cov ntawv pov thawj yog los ntawm tus sau thawj. Yog tias muaj kev ua txhaum cai, thov hu rau peb kom tshem tawm.