Ba promoteurs ba jouer un rôle très important na vulcanisation ya caoutchouc. depuis le début ya siècle 20, développement ya succès ya ba accélérateurs organiques esali plus de 100 ans. accélérateur organique ezali na développement rapide en raison ya efficacité na yango ya likolo, ba caractéristiques ya vulcanisation ya malamu, mpe ba propriétés physiques mpe mécaniques excellentes mpe ba propriétés ya vieillissement ya vulcanizate 1 are are one are on one s’ous on ones on ago, there are with one s’a one with a one s’avely with a one s’a one s’avely with a one s’avely with ago s’a one with a one s’avely with a one s’a one with a one s’avely with a one s’a one with a one s’avely with ago. 50-60 Esalemi mingi. Engebene na structure chimique, ekoki kokabolama na biteni 8 oyo elandi:
1. Ba thiazoles [bamonisi: MBT (m)].
Acid promoter. The thiazole accelerator is characterized by fast vulcanization speed, flat vulcanization curve, good comprehensive performance of vulcanized rubber, good aging resistance, wide application range, suitable for natural rubber and various synthetic rubbers, and should be combined with acid carbon black. Furnace carbon black should pay attention to the danger of scorching, no pollution, can be used as light-colored rubber products, has bitter taste, and should not Esalema na mosala ya bilei.
2. Ba sous-sulphonamides [Bamonisi: CBS (CZ)].
Ndenge moko na ba thiazoles, ba groupes ya promoteur moko, kasi groupe moko ya anti-focus mingi mpe groupe ya activation koleka ba thiazoles. groupe promouvant ezali acide mpe groupe ya activation ezali alcaline. Yango wana, accélérateur ya sulfenamide ezali accélérateur ya auto-base ya ba bases-base, oyo esangisaka ba accélérateurs ya mokuse ya thiazole. Tango. . Bizalela na yango ezali boye : (1) Période ya induction ya molayi, vitesse ya vulcanisation ya mbangu, courbe ya vulcanisation plate, performance complète ya caoutchouc vulcanisé malamu ; (2) Ebongi mpo na kosangisa na Black Carbone Noir, bokengi ekoki, malamu mpo na extrusion, calendrier mpe moulage ya compression fluidité adéquate ya matériel; (3) ebongi mpo na vulcanisation rapide ya température makasi mpe vulcanisation ya produit épaisse;
3. Thiram [emoniseli: TMTD (TT)].
Ezali pe moko ya ba catégories oyo esalelamaka mingi na industrie ya caoutchouc. ba variétés oyo esalemaka mingi ezali boye : TMTM, TMTD, tetd, TRA. ndenge ekoki komonana na formule structurelle, thiurame générale ezali na ba groupes actifs mpe ba groupes mibale promouvants. Yango wana, taux ya vulcanisation ezali ultracanisation ezali mokuse mpe temps ya scorte ezali mokuse, oyo ezali mokuse, oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo oyo ezali mokuse, oyo ezali mokuse, oyo oyo ezali mokuse, oyo ezali mokuse, oyo oyo ezali mokuse, oyo ezali mokuse, oyo ezali mokuse, oyo oyo ezali mokuse, oyo ezali mokuse. na tendance ya kozika tango ozali ko appliquer.
4. Bato oyo bapesaka bato oyo bazali na kati ya nzoto [bamonisi: Zdec (EZ)].
It can be seen from the structural formula that it is more active than the thiuram. In addition to the same active group and promoting group, it contains a transition metal ion, which makes the rubber unsaturated double bond easier to polarize than the thiuram. Faster, it is an ultra-fast grade acid accelerator. It has a very short induction period for room temperature vulcanization and vulcanization of latex products, as well as Vulcanisation ya ba caoutchoucs ya insaturation ya nse lokola caoutchouc butyle na EPDM, oyo epesaka résistance excellente ya vieillissement na ba vulcanizates.
5. Kelasi ya guanidine [emoniseli: DPG (D)].
It is a moderately slow alkaline accelerator and is the most widely used alkaline accelerator. It is widely used in natural rubber and various synthetic rubbers. The most commonly used ones are DPG and DOTG, which are structurally active, have no promoting groups and other functional groups, are slow, and have good operational safety, but have a slower vulcanization rate. It is suitable for vulcanization of thick products such as Ba rouleaux ya caoutchouc mpo na kobongisa stress ya traction ya éponge. Kasi, ba accélérateurs ya quinone bazalaka na tendance ya ko craquer produit mpe kosala décoloration mpe contamination. avantage na yango ya monene ezali que ekoki kosalelama elongo na promoteur acide (lokola na thiazole) mpo na ko activer système ya vulcanisation mpe kolonga ba shortcomings na yango na yango moko{5}}
6. Thiourea [emoniseli: Etu (NA-22)].
Ba accélérateurs ya boye ezali na efficacité ya promotion ya moke mpe résistance ya mabe ya makasi. En plus ya usage ya caoutchouc ya chloropréne mpe polyéthylène chloré mpo na promotion mpe réticulation, ba caoutchoucs mosusu ya dine esalemaka mingi te. Etu mpe Detu ezali mingi mingi ba accélérateurs mpo na neoprène.
7. Ba amines ya aldéhyde [ba representatives: h].
It is a condensate of aldehyde and ammonia. It is a weak alkaline accelerator with 4/closed active amine groups. It is a slow accelerator and has no scorch hazard. It is generally used as a second accelerator. Other accelerators are used in combination. In addition, acetaldehyde, also known as AA or AC, is Accélérateur ya malembe. .
8. Acide ya Xanthan [emoniseli: Zix].
Ezali accélérateur acide ultra-super-speed na taux ya vulcanisation ya mbangu koleka dithiocarbamate. Esalemaka mingi mingi te longola se mpo na colle ya température ya nse mpe industrie ya latex. produit na yango ya représentant ezali zix, isopropyl{5}} zinc xanthate{6}}