Cov neeg txhawb nqa ua ib qho tseem ceeb heev nyob rau hauv roj hmab vulcanization. Txij thaum xyoo pua 20th, txoj kev loj hlob ntawm cov organic accelerators tau ntau tshaj 100 xyoo. Cov organic accelerator muaj kev loj hlob sai vim nws cov kev ua haujlwm siab, cov yam ntxwv zoo zoo nkauj, thiab lub cev zoo thiab lub zog khoom thiab kev laus ntawm cov khoom siv vulcanizate. Tam sim no, muaj ntau tshaj 100 commercialized ones, thiab tseem muaj 50-60 feem ntau siv. Raws li cov qauv tshuaj, nws muaj peev xwm raug faib ua cov hauv qab no:
1. Thiazoles [Cov Neeg Sawv Cev: MBT (M)]
Acid promoter. Lub thiazole accelerator yog pom los ntawm ceev ceev vulcanization ceev, ca vulcanization nkhaus, zoo kev kawm ntawm vulcanized roj hmab, zoo laus ua hauj, ntau daim ntawv thov, tsim rau ntuj roj hmab thiab ntau yam sib npaug hluavtaws, thiab yuav tsum ua ke nrog acid carbon dub. Cov dej taws dub yuav tsum tau mloog zoo rau kev phem, tsis muaj kev ua qias tuaj, yuav siv tau cov khoom siv roj teeb uas muaj xim, muaj qhov iab, thiab yuav tsum tsis txhob siv cov khoom noj khoom haus.
2. Subsulphonamides [Cov Neeg Sawv Cev: CBS (CZ)]
Tib yam li cov thiazoles, tib pab txhawb pawg, tab sis ib pab pawg ntxiv tiv thaiv thiab ib qho activation group dua thiazoles. Pawg txhawb kev yog acidic thiab activating pawg yog alkaline. Yog li, tus accelerator sulfenamide yog ib qho kua qia neeg siv tshuab, siv qhov zoo ntawm thiazole accelerator thiab overcomes cov shortcomings ntawm luv luv scorch lub sij hawm. . Nws cov yam ntxwv yog raws li nram no: (1) ntev induction lub sij hawm, ceev ceev vulcanization ceev, pav ca vulcanization ca, zoo kev kawm ntawm vulcanized roj hmab; (2) tsim kom muaj kev sib xyaw nrog cov pa roj carbon, kev nyab xeeb txaus, zoo rau extrusion, calendering thiab compression molding Adequate fluidity ntawm cov khoom; (3) tsim rau kub kub ceev vulcanization thiab tuab khoom vulcanization;
3. Thiuram [Sawv Cev: TMTD (TT)]
Nws tseem yog ib qho ntawm ntau cov qauv siv nyob rau hauv kev lag luam roj hmab. Feem ntau siv ntau yam raws li nram no: TMTM, TMTD, TETD, TRA. Raws li pom tau los ntawm cov qauv ua qauv, tus thiuram kuj muaj ob pawg neeg thiab ob pab pawg. Vim li no, tus nqi nplua ceev nrawm yog ceev thiab lub sij hawm luv luv yog luv luv, uas yog ib qho ultra-ceev qib acid promoter. Them nyiaj tshwj xeeb rau txoj kev xav hlawv thaum thov.
4. Dithiocarbamates [Cov Neeg Sawv Cev: ZDEC (EZ)]
Nws tuaj yeem pom los ntawm cov qauv ua qauv uas nws muaj ntau yam tshaj li thiuram. Ntxiv nrog rau tib pab pawg thiab txhawb pab pawg, nws muaj ib txoj kev hloov hlau ion, uas ua rau rubber unsaturated ob leeg yooj yim kom polarize tshaj lub thiuram. Sai, nws yog ib qho ultra-ceev qib acid accelerator. Nws muaj lub sij hawm luv luv rau chav tsev kub ntxhov thiab vulcanization ntawm latex cov khoom, nrog rau vulcanization ntawm unsaturation rubbers xws li butyl roj hmab thiab EPDM, uas pub zoo heev laus tiv thaiv mus vulcanizates.
5. Tus qhua tus [Guanidine Class [Sawv Cev: DPG (D)]
Nws yog ib qho kev ua qeeb heev alkaline accelerator thiab yog siv ntau tshaj plaws siv alkaline accelerator. Nws yog dav siv rau hauv roj hmab ntuj thiab ntau hom hluavtaws. Cov feem ntau yog siv DPG thiab DOTG, uas yog cov yam ntxwv ua, tsis muaj kev pab pawg thiab lwm cov koom haum ua haujlwm, qeeb, thiab muaj kev nyab xeeb zoo, tab sis muaj feem pua qeeb qeeb dua. Nws yog haum rau vulcanization ntawm tuab cov khoom xws li rubber rollers los txhim kho lub tensile kev nyuaj siab ntawm lub sponge. Txawm li cas los xij, cov neeg txheeb ze quinone yuav tawg cov khoom thiab ua kom muaj suab thaj thiab sib kis kab mob. Qhov loj tshaj plaws yog tias nws yuav siv nrog ua ib qho kev cog qoob (xws li nrog thiazole) kom qhib lub nplov thiab tshem nws cov kev ua yuam kev.
6. Thiourea [Sawv Cev: ETU (NA-22)]
Xws li cov neeg tsav tsheb muaj kev nce qib qis thiab neeg pluag scorch tsis kam. Ntxiv nrog rau kev siv chloroprene roj hmab thiab chlorinated polyethylene rau txhawb thiab crosslinking, lwm diene rubbers tsis tshua muaj siv. ETU thiab DETU feem ntau yog siv cov accelerators rau neoprene.
7. Aldehyde amines [Cov Neeg Sawv Cev: H]
Nws yog ib qho condensate ntawm aldehyde thiab ammonia. Nws yog ib qho qaug zog alkaline accelerator nrog 4 / kaw cov amine pawg. Nws yog lub zog khiav ceev thiab tsis muaj kev puas tsuaj. Nws yog feem ntau siv los ua tus thib ob lub zog. Lwm cov accelerators siv nrog ua ke. Tsis tas li ntawd, acetaldehyde, los yog hu ua AA lossis AC, yog lub zog khiav ceev.
8. Xanthan acid [Sawv Cev: ZIX]
Nws yog ib qho acidic ultra-super-ceev accelerator nrog ceev vulcanization npaum li dithiocarbamate. Feem ntau nws tsis siv tsuas yog rau cov ntsuas kub tsawg thiab cov chaw lag luam. Nws cov khoom sawv cev yog ZIX, isopropyl. Zinc xanthate.