Ndị na-egbochi ire ọkụ: Ihe mgbakwunye rọba na plastik nke abụọ kachasị ukwuu
Ọkụ na-egbochi ọkụbụ ihe inyeaka nke a na-eji egbochi ihe ọkụ ọkụ ma gbochie mgbasa ọkụ. A na-ejikarị ya eme ihe na ihe polymer. Site na ngwa ngwa ngwa ngwa nke ihe ndị sịntetik na nwayọọ nwayọọ na-emeziwanye ụkpụrụ nchebe ọkụ, ọkụ retardants na-ejikarị plastik, rubber, coatings, wdg. Dị ka isi ihe bara uru kemịkal na FR, ọ nwere ike kewara n'ime atọ edemede: inorganic ire ọkụ. retardants, organic halogenated ire ọkụ retardants na organic phosphorus ire retardants.
Inorganic ire ọkụ retardantsna-arụ ọrụ anụ ahụ, nke nwere obere arụmọrụ na nnukwu ego mgbakwunye. Ọ nwere mmetụta ụfọdụ na arụmọrụ nke ihe. Otú ọ dị, n'ihi ọnụ ala dị ala ọ nwere ike iji ya na ngwaahịa ndị dị ala na-achọ ọrụ dị ala, dị ka plastik PE, PVC, wdg. Were aluminum hydroxide (ATH) dị ka ihe atụ. ruo 200 ℃. Usoro nbibi na-amịkọrọ okpomọkụ na mmiri evaporation, nke mere na iji gbochie okpomọkụ ịrị elu nke ihe onwunwe, belata okpomọkụ nke elu ihe, na-ebelata ọsọ nke thermal cracking mmeghachi omume. N'otu oge ahụ, ikuku mmiri nwere ike ime ka ikuku oxygen na-eme ka ọ ghara ịdị na-ekpo ọkụ ma gbochie combustion. Alumina na-emepụta site na ire ere na-ejikọta ya na elu ihe, nke nwere ike igbochi mgbasa ọkụ.
Organic halogen ire ọkụ retardantstumadi ịmụta chemical ụzọ. Ọrụ ya dị elu na mgbakwunye bụ samll na ezigbo ndakọrịta na polymers. A na-ejikarị ha eme ihe na nkedo eletrọnịkị, bọọdụ sekit e biri ebi na ihe ndị ọzọ eletriki. Otú ọ dị, ha ga-ebupụ gas na-egbu egbu na nke na-emerụ emerụ, nke nwere ụfọdụ nsogbu nchekwa na nchekwa gburugburu ebe obibi.Ihe mgbochi ire ọkụ (BFRs)bụ tumadi ụdị halogenated ire ọkụ retardants. Nke ọzọ bụchloro-usoro ọkụ retardants (CFRs). Okpomọkụ ire ere ha yiri nke ihe polymer. Mgbe ndị polymer na-ekpo ọkụ na ire ere, BFR na-amalitekwa ire ere, banye na mpaghara ọkụ ọkụ gas na ngwaahịa ire ere, gbochie mmeghachi omume ma gbochie mgbasa ọkụ. N'otu oge ahụ, gas a tọhapụrụ na-ekpuchi elu nke ihe ahụ iji gbochie ma gbanwee ikuku oxygen, ma mesịa mee ka mmeghachi omume combustion kwụsị ruo mgbe ọ kwụsịrị. Na mgbakwunye, a na-ejikarị BFR na-ejikọta ya na antimony oxide (ATO). ATO n'onwe ya enweghị ire ọkụ, mana ọ nwere ike rụọ ọrụ dị ka ihe na-akpali akpali iji mee ngwangwa ire ere nke bromine ma ọ bụ chlorine.
Organic phosphorus ire ere (OPFRs)na-arụ ọrụ ma n'anụ ahụ na nke kemịkal, na-arụ ọrụ dị elu na uru nke obere nsị, ịdịte aka na ọnụ ahịa dị elu. Tụkwasị na nke ahụ, ọ nwekwara ike imeziwanye nhazi nhazi nke alloy, na-enye ọrụ plasticizing na arụmọrụ dị mma. Site na ihe ndị dị elu nke nchebe gburugburu ebe obibi, OPFR na-eji nwayọọ nwayọọ dochie BFR dị ka ngwaahịa ndị bụ isi.
Ọ bụ ezie na mgbakwunye nke FR enweghị ike ime ka ihe ahụ na-eguzogide ọkụ n'ụzọ zuru ezu, ọ nwere ike ịzere ihe ngosi "ọkụ ọkụ" nke ọma, belata ihe omume ọkụ ma merie oge mgbapụ bara uru maka ndị mmadụ nọ na ọkụ ọkụ. Nkwalite nke mba chọrọ maka teknụzụ na-egbochi ire ọkụ na-emekwa ka atụmanya mmepe nke FR gbasaa karịa.
Oge nzipu: Nov-19-2021