1.Baaxadda codsiga
(1). Lagu dabaqay caag aan saturated ahayn: sida NR, BR, NBR, IR, SBR, iwm.
(2). Codso caag saturated ah: sida EPM waxa kaliya oo nuglaan kara peroxide, EPDM waxaa nuglan kara peroxide iyo baaruud labadaba.
(3). Lagu dabaqay caag silsilado kala duwan: sida Q vulcanization.
2. Astaamaha nidaamka vulcanization peroxide
(1). Qaab dhismeedka shabakada ee caagga vulcanized waa CC bond, oo leh tamar dammaanad sare leh, xasilloonida kiimikaad sare, iyo iska caabin heer sare ah oo kulka iyo gabowga ogsijiinta.
(2). Caag Vulcanized ah ayaa leh qallafsanaan joogto ah oo hooseeya, barti wanaagsan iyo waxqabad firfircoon oo liita.
(3). Badbaadada habaysan oo liidata iyo peroxide qaali ah.
(4). Shaabadaynta joogtada ah ama heerkul sarreeya alaabada xidhidhiyaha joogtada ah waxay leeyihiin codsiyo badan oo kala duwan.
3. peroxides sida caadiga ah loo isticmaalo
Waxyaalaha vulcanizing peroxide ee sida caadiga ah loo isticmaalo waa alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) iyo peroxy esters. Waxaa ka mid ah, dialkyl peroxides ayaa si ballaaran loo isticmaalaa. Sida: diisopropyl peroxide (DCP): hadda waa wakiilka vulcanizing ee inta badan la isticmaalo.
2,5-dimethyl-2,5-(di-tert-butylperoxy) hexane: sidoo kale loo yaqaan bis-dipentyl
4. Habka vulcanization Peroxide
Kooxda peroxide ee peroxide waxay si fudud u jajabisaa kulaylka si ay u soo saaraan xagjirno xor ah, kuwaas oo kicinaya nooca xagjirka ah ee xorta ah ee iskutallaabta isku-xidhka silsiladda molecular ee caagga ah.
5. Qodobbada muhiimka ah ee vulkanization peroxide:
(1). Qiyaasta: waxay ku kala duwan tahay noocyada caagga ah ee kala duwan
Waxtarka isku-xiran ee peroxide: 1g molecule of organic peroxide waxay samayn kartaa inta garaam ee molecules caag ah waxay soo saartaa iskutallaab kiimikaad ah.
Tusaale ahaan: hufnaanta isku-xiran ee SBR waa 12.5; waxtarka isku-xiran ee BR waa 10.5; waxtarka isku-xiran ee EPDM, NBR, NR waa 1; waxtarka isku-xiran ee IIR waa 0.
(2). Isticmaalka wakiilka firfircoon iyo wakiilka isku-darka si loo hagaajiyo waxtarka isku-xiran
Doorka ZnO waa in la wanaajiyo iska caabbinta kulaylka ee koollada, ma aha hawlgeliyaha. Doorka stearic acid waa in la hagaajiyo milanka iyo kala firdhisanaanta ZnO ee caagga. HVA-2 (N, N'-phthalimido-dimaleimide) sidoo kale waa firfircooni wax ku ool ah ee peroxide.
Ku darida wakiilka vulcanizing kaaliyaha: inta badan sulfur jaalaha ah, iyo wakiilada kale ee iskutallaabta ah sida divinylbenzene, trialkyltricyanate, karboksylates aan saturated, iwm.
(3). Ku dar qadar yar oo ah walxaha alkaline, sida MgO, triethanolamine, iwm., si loo hagaajiyo waxtarka isku-xirnaanta, iska ilaali isticmaalka booska kaarboonka madow iyo silica iyo buuxinta kale ee acidic (ashitada si ay u sameeyaan dhaqdhaqaaqa xorta ah); Antioxidants guud ahaan waa amin iyo phenolic antioxidants, sidoo kale way fududahay in la sameeyo shucuur bilaash ah, yaraynta waxtarka isku-tallaabta, waa in si taxadar leh loo isticmaalo.
(4). Heerkulka vulcanization: waa inuu ka sarreeyaa heerkulka burburka ee peroxide
(5). Waqtiga Vulcanization: guud ahaan 6 ~ 10 jeer nolosha nuska ah ee peroxide.
Peroxide nus-nolosha: heerkul gaar ah, burburka peroxide ilaa kala badh fiirsashada asalka ah ee wakhtiga loo baahan yahay, oo lagu muujiyey t1/2.
Haddii nolosha nuska ah ee DCP ee 170 ℃ ay tahay 1min, markaa wakhtiga sulfinta togan waa inuu ahaadaa 6 ~ 10min.
Tusaalaha qaabeynta: EPDM 100 (saldhig)
S 0.2 (wakiilka vulcanizing caawiyaha)
SA 0.5 (dhaqdhaqaaqa)
ZnO 5.0 (si loo hagaajiyo caabbinta kulaylka)
HAF 50 (wakiilka xoojinta)
DCP 3.0 (Wakiilka Thixotropic)
MgO 2.0 (Waxay horumarisaa hufnaanta isku xidhka)
Saliida shaqaynaysa 10 (wakiilka jilciya)
