Njirimara bara uru nke butyl rubber na-agbakwunyere.Njirimara ndị a dịkwa na nrapado butyl
(1) Ikuku permeability
Ọsọ mgbasa nke gas na polymer metụtara ọrụ okpomọkụ nke ụmụ irighiri ihe ndị polymer.A na-ahazi otu methyl dị n'akụkụ dị n'agbụ molekul rubber butyl, nke na-egbochi ọrụ okpomọkụ nke mkpụrụ ndụ polymer.Ya mere, ikike ikuku gas dị ala na nkwụsị gas dị mma.
(2) Thermal invariance
Butyl rubber vulcanizates nwere ezigbo nguzogide okpomọkụ yana enweghị ike ịdị iche.Sulfur vulcanized butyl roba nwere ike iji na ikuku ogologo oge na 100 ℃ ma ọ bụ dịtụ ala okpomọkụ.Ngwa okpomọkụ nke resin vulcanized butyl roba nwere ike iru 150 ℃ - 200 ℃.Ịka nká ikuku oxygen nke butyl rubber bụ ụdị mmebi, usoro ịka nká na-adị nro.
(3) Ntinye ike
Ọdịdị molekụla nke butyl rubber dị mkpụmkpụ nke njikọ abụọ, yana njupụta nke njupụta nke otu methyl dị n'akụkụ dị ukwuu, ya mere ọ nwere njirimara magburu onwe ya nke ịnweta vibration na mmetụta ike.Ngosipụta nke butyl rubber abụghị ihe karịrị 20% n'ime oke okpomọkụ (- 30-50 ℃), nke na-egosi n'ụzọ doro anya na ike butyl rọba ịnata ọrụ n'ibu dị elu karịa rọba ndị ọzọ.Ngwongwo na-ekpo ọkụ nke butyl rọba na oke nrụrụ dị na mpaghara polyisobutylene.Ruo n'ókè dị ukwuu, ọ naghị emetụta okpomọkụ ngwa ngwa, ogo unsaturation, ọdịdị vulcanization na mgbanwe usoro.Ya mere, butyl roba bụ ihe dị mma maka mkpuchi ụda na mbelata mkpọtụ n'oge ahụ.
(4) Ala okpomọkụ dị ala
Ọdịdị oghere nke butyl roba yinye molekul bụ gburugburu.N'agbanyeghị na enwere ọtụtụ methyl, otu ụzọ methyl nke ọ bụla gbasasịa n'akụkụ abụọ nke gburugburu ahụ na-adagharị site na akụkụ.Ya mere, butyl rubber molecular yinye ka dị nnọọ nwayọọ, na-enwe obere iko mgbanwe okpomọkụ na ezi elasticity.
(5) Ozone na iguzogide ịka nká
Nnukwu saturation nke butyl roba yinye na-eme ka ọ nwee nnukwu nguzogide ozone na nguzogide ihu igwe.Nguzogide ozone dị ihe dị ka okpukpu iri karịa nke rọba eke.
(6) Mmetụta kemịkalụ
Ọdịdị dị elu nke rubber butyl na-eme ka ọ nwee nnukwu mgbanwe kemịkalụ.Butyl roba nwere ezigbo nguzogide corrosion nke ọtụtụ inorganic acid na organic acids.Ọ bụ ezie na ọ naghị eguzogide acids oxidizing na-etinye uche, dị ka nitric acid na sulfuric acid, ọ nwere ike iguzogide acid na-abụghị oxidizing na ọkara ntinye oxidizing acids, yana ngwọta alkali na ngwọta mgbake oxidation.Mgbe itinye ya na 70% sulfuric acid maka izu iri na atọ, ike na elongation nke butyl rubber adịchaghị efu, ebe ọrụ nke roba eke na styrene butadiene rọba belatara nke ukwuu.
(7) Ọrụ eletrik
Ihe mkpuchi eletrik na nguzogide corona nke butyl rubber dị mma karịa nke rọba dị mfe.Iguzogide olu bụ 10-100 ugboro dị elu karịa nke rọba dị mfe.The dielectric mgbe niile (1kHz) bụ 2-3 na ike ihe (100Hz) bụ 0.0026.
(8) Mmụba mmiri
Ọnụego ntinye mmiri nke butyl rubber dị oke ala, na ọnụego mmịnye mmiri na okpomọkụ nkịtị dị ala karịa nke rọba ndị ọzọ, naanị 1 / 10-1 / 15 nke ikpeazụ.
