1.Application no kɛse

   (1) no. Wɔde gu rɔba a enni ahoɔden so: te sɛ NR, BR, NBR, IR, SBR, ne nea ɛkeka ho.

   (2) no. Fa gu saturated rubber so: te sɛ EPM betumi ayɛ vulcanized denam peroxide nkutoo so, EPDM betumi ayɛ vulcanized denam peroxide ne sulfur nyinaa so.

   (3) no. Wɔde di dwuma wɔ nkɔnsɔnkɔnsɔn rɔba ahorow so: te sɛ Q vulcanization.

2. Peroxide vulcanization nhyehyɛe no su ahorow

(1) no. Rɔba a wɔde vulcanized ayɛ no ntam nhyehyɛe yɛ CC bond, a ɛwɔ bond ahoɔden a ɛkorɔn, nnuru a ɛyɛ den yiye, na ɛko tia ɔhyew ne oxygen onyin yiye.

(2) no. Vulcanized rɔba wɔ low daa deformation, elasticity pa ne dynamic adwumayɛ a enye.

(3) no. Ahobammɔ a enye wɔ nneɛma a wɔde di dwuma ho ne peroxide a ne bo yɛ den.

(4) no. Wɔ static sealing anaa ɔhyew a ɛkorɔn static sealing nneɛma wɔ pii a wɔde di dwuma.

3.Peroxides a wɔtaa de di dwuma

Nneɛma a wɔtaa de yɛ peroxide vulcanizing nneɛma ne alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) ne peroxy esters. Wɔn mu bi ne dialkyl peroxides a wɔde di dwuma kɛse. Te sɛ: diisopropyl peroxide (DCP): mprempren ne ade a wɔde di dwuma kɛse wɔ aduru a ɛma vulcanizing.

2,5-dimethyl-2,5-(di-tert-butylperoxy) hexane: wɔsan frɛ no bis-dipentyl

4. Peroxide vulcanization afiri a wɔde yɛ adwuma

Ɛnyɛ den sɛ ɔhyew bɛporɔw peroxide kuw a ɛwɔ peroxide no mu ma ayɛ free radicals, a ɛkanyan free radical type cross-linking reaction a ɛwɔ rɔba molecule nkɔnsɔnkɔnsɔn mu no.

5. Nsɛntitiriw a ɛfa peroxide vulcanization ho:

(1) no. Dosage: ɛsono sɛnea rɔba ahorow ahorow te

Cross-linking efficiency of peroxide: 1g molecule of organic peroxide betumi ama gram dodow ahe na rɔba molecules ayɛ chemical cross-linking.Sɛ 1 molecule of peroxide tumi ma 1g molecules of rubber cross-linked, cross-linking efficiency yɛ 1.

Sɛ nhwɛsoɔ no: SBR no cross-linking efficiency yɛ 12.5; BR no cross-linking efficiency yɛ 10.5; EPDM, NBR, NR no cross-linking a ɛyɛ adwuma yiye no yɛ 1; cross-linking efficiency a IIR yɛ no yɛ 0.

(2) no. active agent ne co-sulfurizing agent a wɔde di dwuma de ma cross-linking no tu mpɔn

Dwuma a ZnO di ne sɛ ɛbɛma ɔhyew a ɛko tia ade a wɔde nkata so no atu mpɔn, na ɛnyɛ nea ɛma ɛyɛ adwuma no. Dwuma a stearic acid di ne sɛ ɛbɛma ZnO a ɛtumi nwura mu na ɛpete wɔ rɔba no mu no atu mpɔn. HVA-2 (N,N’-phthalimido-dimaleimide) nso yɛ ade a etu mpɔn a ɛma peroxide yɛ adwuma.

Vulcanizing aduru a ɛboa a wɔde ka ho: titiriw sulfur yellow, ne nneɛma afoforo a ɛboa a ɛma cross-linking te sɛ divinylbenzene, trialkyltricyanate, unsaturated carboxylates, ne nea ɛkeka ho.

(3) no. Fa nneɛma kakraa bi a ɛyɛ alkaline te sɛ MgO, triethanolamine, ne nea ɛkeka ho ka ho, na ama cross-linking no atu mpɔn, kwati sɛ wode slot carbon black ne silica ne acidic fillers afoforo (acid ma free radicals passivation) bedi dwuma antioxidants taa yɛ amine ne phenolic antioxidants, nso ɛnyɛ den sɛ wɔbɛyɛ free radicals pasivation, a ɛtew cross-linking efficiency so, ɛsɛ sɛ wɔde di dwuma kakraa bi.

(4) no. Vulcanization hyew: ɛsɛ sɛ ɛkorɔn sen peroxide hyew a ɛporɔw

(5) no. Vulcanization bere: mpɛn pii no 6 ~ 10 mpɛn afe fã nkwa nna a peroxide.

   Peroxide fã nkwa nna: wɔ ɔhyew pɔtee bi mu no, peroxide a ɛporɔw kodu bere a ɛho hia no mfitiase dodow no fã, a wɔda no adi wɔ t1/2 mu.

   Sɛ DCP fã nkwa nna wɔ 170°C yɛ 1min a, ɛnde ɛsɛ sɛ ne sulphation bere a ɛyɛ papa no yɛ 6 ~ 10min.

Nhwɛsode a wɔde yɛ nnuru: EPDM 100 (gyinabea) .

S 0.2 (aduru a ɛboa ma vulcanizing) .

SA 0.5 (a ɛma ɛyɛ adwuma) .

ZnO 5.0 (sɛnea ɛbɛyɛ a ɔhyew a ɛko tia no atu mpɔn) .

HAF 50 (ade a ɛhyɛ den) .

DCP 3.0 (Aduru a ɛma thixotropic) .

MgO 2.0 (Ɛma cross-linking adwumayɛ tu mpɔn) .

Ngo a wɔde yɛ adwuma 10 (ade a ɛma ɛyɛ mmerɛw) .