Zvinhu zvinodzivisa moto zvisina halogen zvine basa guru munyaya yekusadzivirira moto mumachira.
Zvinodzivirira moto zvisina halogen zvine basa rakakosha munyaya yekusapisa moto mumachira. Sezvo vanhu vachiziva nezvekuchengetedzwa kwezvakatipoteredza, zvinodzivirira moto zvechinyakare zvine halogen zviri kuramba zvichitsiviwa. Zvinodzivirira moto zvisina halogen zvinhu zvisina halogen zvakaita sechlorine nebromine. Kushandiswa kwazvo kune zvakanakira zvakawanda mukusapisa moto mumachira. Parizvino, zvinodzivirira moto zvisina halogen zvakawanda zvinoshandiswa zvakanyanya munyaya yekusapisa moto mumachira. Mienzaniso inosanganisira: ammonium polyphosphate (APP), copolycyanurate (CP), aluminium hydroxide (ATH), nitrogen-phosphorus flame retardant (HNF), nezvimwewo. Izvi zvinodzivirira moto zvisina halogen hazvingodzikisi kupisa kwemachira chete, asiwo zvinogadzira makemikari anodzivirira kutsva pakupisa kwakanyanya, nokudaro zvichidzivirira kupararira kwemoto. Kunyanya kukoshesa kunofanira kuiswa paammonium polyphosphate (APP). Sechinhu chinowanzo shandiswa chisina halogen, APP ine kugona kwakanaka kwekusapisa moto mumachira. Mumachira, APP inogona kutora kupisa nemakemikari uye kuora kuti igadzire phosphate expansion layer inodzivisa moto, iyo inovhara kutamiswa kweokisijeni nekupisa uye inodzivirira kupararira kwekupisa. Panguva imwe chete, APP inogonawo kukurudzira carbonization reaction yejira uye kugadzira dense carbon layer, zvichiwedzera kuvandudza mashandiro emurazvo wejira. Izvi zvinoita kuti APP ive imwe yeanonyanya kufarirwa halogen-free flame retardants mumunda wemurazvo wejira. Mukupfupisa, halogen-free flame retardants inoita basa guru mumunda wemurazvo wejira. Nekushandisa halogen-free flame retardants dzakadai seammonium polyphosphate, machira anogona kuwana mhedzisiro yakanaka yemurazvo uye kuvandudza kuchengetedzeka kwemoto. Nekufambira mberi kuri kuitwa tekinoroji, zvinotendwa kuti halogen-free flame retardants ichaita basa rakakosha mukudzora marara ejira mune ramangwana.
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Nguva yekutumira: Gumiguru-11-2023
