Rọba sịntetik bụ otu n'ime ihe atọ dị mkpa e ji emepụta sịntetik, a na-ejikwa ya eme ihe n'ọtụtụ akụkụ dị iche iche nke ụlọ ọrụ mmepụta ihe, nchekwa mba, njem na ndụ kwa ụbọchị. Rọba sịntetik dị elu ma na-arụ ọrụ nke ọma bụ ihe dị mkpa maka mmepe nke oge ọhụrụ, ọ bụkwa ihe dị mkpa maka mba ahụ.
Ihe pụrụ iche e ji rọba sịntetik mee na-ezo aka na ihe ndị dị ka rọba nke dị iche na ihe ndị dị ka rọba nkịtị ma nwee ihe pụrụ iche dịka iguzogide okpomọkụ dị elu na nke dị ala, iguzogide ịka nká, iguzogide ablation, na iguzogide kemịkalụ, ọkachasị roba nitrile hydrogenated (HNBR), thermoplastic vulcanizate (TPV), roba Silicone, rọba fluorine, rọba fluorosilicone, rọba acrylate, wdg. N'ihi ihe pụrụ iche ya, ihe ndị pụrụ iche e ji rọba emepụta aghọwo ihe ndị dị mkpa maka mmepe nke atụmatụ mba dị iche iche na ngalaba ndị na-apụta ìhè dịka ụgbọelu, ụlọ ọrụ nchekwa mba na agha, ozi eletrọnịkị, ike, gburugburu ebe obibi, na oké osimiri.
1. Rọba nitrile hydrogenated (HNBR)
Roba nitrile hydrogenated bụ roba jupụtara nke ukwuu nke a na-enweta site na iji hydrogen mee ka akụkụ butadiene dị na yinye roba nitrile dị mma maka ebumnuche imeziwanye iguzogide okpomọkụ na iguzogide ịka nká nke roba nitrile butadiene (NBR). Isi ihe dị na ya bụ na enwere ike iji ya ruo ogologo oge na 150 ℃, ọ ka nwekwara ike ịnọgide na-enwe ihe onwunwe anụ ahụ na nke mekaniki dị elu na okpomọkụ dị elu, nke nwere ike iru ihe achọrọ pụrụ iche nke iguzogide okpomọkụ dị elu na iguzogide kemịkalụ nke ihe dị na ụgbọala, ikuku, ubi mmanụ na ubi ndị ọzọ. Ihe achọrọ, nke a na-ejikarị eme ihe, dị ka akara mmanụ ụgbọala, ihe mejupụtara sistemụ mmanụ ụgbọala, eriri nnyefe ụgbọala, igbe njide olulu na piston maka apịtị, ihe eji ebi akwụkwọ na rọba ákwà, akara aerospace, ihe nnabata ujo, wdg.
2. Thermoplastic Vulcanizate (TPV)
Ndị na-eme ka thermoplastic vulcanizates, nke a na-akpọ TPVs, bụ otu n'ime ụdị elastomers thermoplastic pụrụ iche nke a na-emepụta site na "ịkpụgharị ike" nke ngwakọta thermoplastics na elastomers na-adịghị agbanwe agbanwe, ya bụ, nhọrọ nke usoro elastomer n'oge ngwakọta agbaze na thermoplastic. Ịkpụgharị ike n'otu oge nke usoro roba n'ihu ihe na-ejikọ ọnụ (ikekwe peroxides, diamines, sulfur accelerators, wdg) n'oge ngwakọta agbaze na thermoplastics na-eme ka matrix thermoplastic na-aga n'ihu nke nwere roba crosslinked gbasaa. Ihe ndị dị na usoro ahụ, vulcanization na-eduga na mmụba na viscosity roba, nke na-akwalite ntụgharị nkebi ma na-enye ọdịdị multiphase na TPV. TPV nwere arụmọrụ yiri nke roba thermosetting na ọsọ nhazi nke thermoplastics, nke a na-egosipụtakarị na oke arụmọrụ/ọnụ ahịa dị elu, nhazi mgbanwe, ibu dị mfe, oke okpomọkụ ọrụ sara mbara, nhazi dị mfe, ịdị mma ngwaahịa na nkwụsi ike nha. A na-emegharị ya, a na-ejikarị ya eme ihe n'ọtụtụ akụkụ ụgbọala, owuwu ike, akara na mpaghara ndị ọzọ.
3. Rọba silikọn
Roba silicone bụ ụdị rọba sịntetik pụrụ iche nke ejiri polysiloxane linear gwakọta ya na ihe ndị na-eme ka ihe sie ike, ihe ndị na-eme ka ihe na-arụ ọrụ na ihe mgbakwunye, wee ghọọ elastomer dị ka netwọk mgbe a gbasasịrị ya n'okpuru ọnọdụ okpomọkụ na nrụgide. Ọ nwere ezigbo iguzogide okpomọkụ dị elu na nke dị ala, iguzogide ihu igwe, iguzogide ozone, iguzogide arc, mkpuchi eletriki, iguzogide mmiri, ikuku dị elu na enweghị ike ime ihe na physiological inertia. O nwere ọtụtụ ngwa na ụlọ ọrụ ọgbara ọhụrụ, eletrọnịkị na eletriki, ụgbọ ala, owuwu, ahụike, nlekọta onwe onye na ngalaba ndị ọzọ, ọ ghọwokwa ihe dị mkpa maka arụmọrụ dị elu na mbara igwe, nchekwa na ụlọ ọrụ agha, mmepụta nwere ọgụgụ isi na mpaghara ndị ọzọ.
4. Rọba fluorine
Rọba Fluorine na-ezo aka na ihe e ji rọba nwere fluorine nke nwere atọm fluorine na atọm carbon nke isi agbụ ma ọ bụ agbụ akụkụ. A na-ekpebi ihe pụrụ iche ya site na njirimara nhazi nke atọm fluorine. Enwere ike iji rọba Fluorine na 250°C ruo ogologo oge, okpomọkụ kachasị elu nke ọrụ nwere ike iru 300°C, ebe oke okpomọkụ nke EPDM ọdịnala na roba butyl bụ naanị 150°C. Na mgbakwunye na oke okpomọkụ, fluororubber nwere ezigbo iguzogide mmanụ, iguzogide kemịkalụ, iguzogide acid na alkali, arụmọrụ ya zuru oke bụ nke kacha mma n'etiti ihe niile e ji rọba elastomer mee. A na-ejikarị ya eme ihe maka iguzogide mmanụ nke rọketi, ngwa agha, ụgbọelu, ụgbọ mmiri, ụgbọala na ụgbọ ala ndị ọzọ. Ubi pụrụ iche dịka mkpuchi na paịpụ ndị na-eguzogide mmanụ bụ ihe dị mkpa maka akụ na ụba mba na ụlọ ọrụ nchekwa mba na agha.
5. Rọba acrylate (ACM)
Rọba Acrylate (ACM) bụ elastomer nke a na-enweta site na copolymerization nke acrylate dị ka monomer bụ isi. Isi agbụ ya bụ agbụ carbon juru eju, otu akụkụ ya bụkwa otu polar ester. N'ihi nhazi pụrụ iche ya, o nwere ọtụtụ njirimara dị mma, dịka iguzogide okpomọkụ, iguzogide ịka nká, iguzogide mmanụ, iguzogide ozone, iguzogide UV, wdg, ihe onwunwe igwe na ihe nhazi ya dị mma karịa roba fluororubber na silicone, iguzogide okpomọkụ ya, iguzogide ịka nká na iguzogide mmanụ dị mma. na roba nitrile. A na-eji ACM eme ihe nke ukwuu n'ọtụtụ ebe dị iche iche na-eguzogide okpomọkụ na mmanụ, ọ ghọwokwa ihe mkpuchi nke ụlọ ọrụ ụgbọ ala mepụtara ma kwalite n'afọ ndị na-adịbeghị anya.
Oge ozi: Sep-27-2022
