Waya retardant ire ọkụ, na-ezo aka na waya na ọnọdụ ọkụ ọkụ, n'ozuzu n'ihe banyere ule ahụ, mgbe eriri ọkụ ahụ gbachara, ọ bụrụ na a na-ebipụ ọkụ ọkụ ahụ, a ga-achịkwa ọkụ ahụ n'ime ebe ụfọdụ, ọ gaghị agbasa, na-eji ọkụ na-ere ọkụ ma na-egbochi arụ ọrụ anwụrụ ọkụ. Waya retardant ire ọkụ dị ka akụkụ dị mkpa nke nchekwa eletriki, nhọrọ nke ihe ya dị oke mkpa, ahịa ugbu a na-ejikarị ihe ndị na-ere ọkụ ọkụ gụnyere gụnyere.PVC, XLPE, silicone roba na mineral mkpuchi ihe.
Nhọrọ waya na eriri ọkụ na-egbochi ọkụ
Ọnụ ọgụgụ dị elu nke ikuku oxygen nke ihe eji eme ihe na ọkụ ọkụ na-eme ka ọkụ na-eme ka ọkụ na-eme ka ọ dịkwuo mma, ma na mmụba nke ikuku oxygen, ọ dị mkpa ịhapụ ụfọdụ ihe ndị ọzọ. Ọ bụrụ na a na-ebelata ihe onwunwe anụ ahụ na usoro ihe eji eme ihe, ọrụ ahụ siri ike, ọnụ ahịa ihe ahụ na-abawanye, ya mere, ọ dị mkpa iji ezi uche na n'ụzọ kwesịrị ekwesị họrọ oxygen index, oxygen index nke izugbe mkpuchi ihe ruru 30, ngwaahịa nwere ike ịgafe ule chọrọ nke klas C na ọkọlọtọ, ma ọ bụrụ na sheathing na ndochi ihe bụ ire ọkụ retardant ihe, ngwaahịa nwere ike izute klas B. nke a na-ekewa n'ime ihe na-egbochi ire ọkụ halogen na ihe na-egbochi ire ọkụ na-enweghị halogen;
1. Halogenated ọkụ retardant ihe
N'ihi nbibi na ntọhapụ nke hydrogen halide mgbe combustion na-ekpo ọkụ, hydrogen halide nwere ike weghara ọrụ free radical HO mgbọrọgwụ, nke mere na combustion nke ihe onwunwe na-egbu oge ma ọ bụ menyụọ iji nweta nzube nke ire ere retardant. A na-ejikarị polyvinyl chloride, roba neoprene, chlorosulfonated polyethylene, ethylene-propylene roba na ihe ndị ọzọ.
(1) Ọkụ retardant polyvinyl chloride (PVC): N'ihi ọnụ ala PVC, ezigbo mkpuchi na ire ọkụ retardant, ọ na-ọtụtụ ebe na nkịtị ire retardant waya na USB. Iji mee ka ọkụ na-ere ọkụ nke PVC dịkwuo mma, a na-etinyekarị ọkụ ọkụ halogen retardants (decabromodiphenyl ethers), chlorinated paraffins na synergic flame retardants na usoro iji meziwanye ọkụ ọkụ nke PVC.
Ethylene propylene roba (EPDM): hydrocarbons na-abụghị polar, nwere ezigbo ọkụ eletrik, nguzogide mkpuchi dị elu, obere dielectric ọnwụ, mana ethylene propylene roba bụ ihe na-ere ọkụ, anyị ga-ebelata ogo nke crosslinking ethylene propylene roba, belata nkwụsị nke eriri molekụla kpatara site na obere ihe dị arọ molekụla, iji meziwanye akụrụngwa flamming;
(2) Anwụrụ ọkụ dị ala na ihe na-egbochi ire ọkụ halogen dị ala
tumadi maka polyvinyl chloride na chlorosulfonated polyethylene ihe abụọ. Tinye CaCO3 na A (IOH) 3 na usoro nke PVC. Zinc borate na MoO3 nwere ike ibelata ntọhapụ HCL na anwụrụ ọkụ nke ọkụ retardant polyvinyl chloride, si otú ahụ na-emeziwanye ire ọkụ nke ihe onwunwe, na-ebelata halogen, fog acid, anwụrụ ọkụ, ma ọ nwere ike ime ka ikuku oxygen belata ntakịrị.
2. Ihe na-egbochi ọkụ na-enweghị Halogen
Polyolefins bụ ihe na-enweghị halogen, nke nwere hydrocarbons na-akụda carbon dioxide na mmiri mgbe ọkụ na-emepụtaghị anwụrụ ọkụ na gas na-emerụ ahụ. Polyolefin na-agụnye polyethylene (PE) na ethylene - vinyl acetate polymers (E-VA). Ihe ndị a n'onwe ha enweghị ọkụ retardant, mkpa ịgbakwunye inorganic ire ọkụ retardants na phosphorus usoro ire ere retardants, iji hazie n'ime bara uru halogen-free ire ere ihe retardant; Otú ọ dị, n'ihi enweghị polar otu na molekụla yinye nke na-abụghị polar bekee na hydrophobicity, mmekọrịta na inorganic ire ọkụ retardants bụ ogbenye, siri ike ikekọ. Iji meziwanye ọrụ elu nke polyolefin, enwere ike ịgbakwunye surfactants na usoro. Ma ọ bụ na polyolefin agwakọta ya na polymers nwere otu polar, nke mere na ọ ga-eme ka ọnụọgụ ọkụ na-eme ka ọkụ dịkwuo elu, na-eme ka ihe ndị na-arụ ọrụ na-arụ ọrụ na nhazi nke ihe onwunwe ahụ dịkwuo mma, ebe ị na-enweta ọkụ ọkụ ka mma. Enwere ike ịhụ na waya na eriri ọkụ ka na-aba uru, na ojiji ya na-adị mma na gburugburu ebe obibi.
Oge nzipu: Dec-03-2024