1.Ngwa ngwa
(1). Tinyere na rọba na-adịghị mma: dị ka NR, BR, NBR, IR, SBR, wdg.
(2). Tinye na rọba juru eju: dị ka EPM nwere ike ime ya naanị site na peroxide, EPDM nwere ike mebie ya site na peroxide na sọlfọ.
(3). Tinyere na rọba yinye dị iche iche: dị ka Q vulcanization.
2. Njirimara nke sistemu vulcanization peroxide
(1). Nhazi netwọk nke rọba vulcanized bụ njikọ CC, nwere ike njikọ dị elu, nkwụsi ike kemịkalụ dị elu, yana ezigbo nguzogide okpomọkụ na ikuku oxygen.
(2). Rọba Vulcanized nwere obere nrụrụ na-adịgide adịgide, ịdị mma dị mma na arụ ọrụ ike adịghị mma.
(3). Nchekwa nhazi na-adịghị mma na peroxide dị oke ọnụ.
(4). Na static sealing ma ọ bụ elu okpomọkụ static sealing ngwaahịa nwere ọtụtụ ngwa ngwa.
3. peroxides ndị a na-ejikarị eme ihe
Ihe ndị na-eme ka ọ ghara imebi peroxides bụ alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) na peroxy esters. N'ime ha, a na-ejikarị dialkyl peroxides eme ihe. Dị ka: diisopropyl peroxide (DCP): bụ ihe a na-ejikarị eme ihe ugbu a.
2,5-dimethyl-2,5- (di-tert-butylperoxy) hexane: nke a makwaara dị ka bis-dipentyl.
4. Usoro vulcanization peroxide
Otu peroxide nke peroxide na-adị mfe ire site na okpomọkụ iji mepụta free radicals, nke na-akpalite free radical ụdị cross-linking mmeghachi omume nke roba molecular yinye.
5. Isi ihe nke ime ihe ike peroxide:
(1). Usoro onunu ogwu: dịgasị iche iche na ụdị rọba dị iche iche
Ọrụ nke peroxide na-ejikọta cross-linking: 1g molecule of organic peroxide nwere ike ime ka ọtụtụ gram nke rubber molecules na-emepụta njikọ njikọ kemikal.
Dị ka ihe atụ: cross-linking arụmọrụ nke SBR bụ 12.5; arụmọrụ njikọ cross-link nke BR bụ 10.5; arụmọrụ na-agafe agafe nke EPDM, NBR, NR bụ 1; Ọrụ njikọ cross-link nke IIR bụ 0.
(2). Iji onye na-arụ ọrụ na onye na-emekọ ihe na-emekọ ihe iji melite arụmọrụ njikọ njikọ
Ọrụ nke ZnO bụ ịkwalite nguzogide okpomọkụ nke nrapado, ọ bụghị onye na-eme ihe. Ọrụ nke stearic acid bụ imeziwanye solubility na mgbasa nke ZnO na rọba. HVA-2 (N, N'-phthalimido-dimaleimide) bụkwa ihe na-arụ ọrụ nke peroxide.
Na-agbakwụnye ihe inyeaka vulcanizing: tumadi sọlfọ odo, na ndị ọzọ na-enye aka cross-linking agents dị ka divinylbenzene, trialkyltricyanate, unsaturated carboxylates, wdg.
(3). Tinye obere ihe ndị dị na alkaline, dị ka MgO, triethanolamine, wdg, iji meziwanye arụmọrụ nke njikọ njikọ, zere iji oghere carbon black na silica na ndị ọzọ acidic fillers (acid na-eme ka free radicals passivation); antioxidants bụ n'ozuzu amine na phenolic antioxidants, dịkwa mfe ime free radicals passivation, mbenata arụmọrụ nke cross-linking, kwesịrị iji nwayọọ.
(4). Okpomọkụ Vulcanization: kwesịrị ịdị elu karịa ogo ire ere nke peroxide
(5). Oge Vulcanization: n'ozuzu 6 ~ 10 ugboro nke ọkara ndụ peroxide.
Peroxide ọkara ndụ: na ụfọdụ okpomọkụ, peroxide na-emebi emebi na ọkara nke ntinye mbụ nke oge achọrọ, gosipụtara na t1 / 2.
Ọ bụrụ na ọkara ndụ nke DCP na 170 ℃ bụ 1min, mgbe ahụ ya mma sulfation oge kwesịrị 6 ~ 10min.
Ihe atụ nhazi: EPDM 100 (base)
S 0.2 (ihe enyemaka inyeaka vulcanizing)
SA 0.5 (onye na-eme ihe)
ZnO 5.0 (iji kwalite nguzogide okpomọkụ)
HAF 50 (onye na-enye ume)
DCP 3.0 (onye nnọchi anya Thixotropic)
MgO 2.0 (na-eme ka arụmọrụ njikọ gafere)
Mmanụ na-arụ ọrụ 10 (onye na-eme ka ọ dị nro)
