Sɛnea yɛn nyinaa nim no, MBS / NOBS, TMTD, DTDM ne nneɛma afoforo a ɛma nneɛma kɔ ntɛmntɛm wɔ sulfide a ɛwɔ ntam no mu no bɛpopa nitrosamine kokoram, ɔkwan bɛn so na wɔbɛpaw akwan foforo? Wopɛ sɛ wofa ayaresa nhyehyɛe a ɛnyɛ nea ɛsɛe nneɛma a atwa yɛn ho ahyia so de di EU ho dwuma, hwɛ ase hɔ!
Sulfide vulcanization accelerator a wɔtaa de di dwuma wɔ tae a wɔyɛ mu ne sulfenamide accelerator ne thiazole accelerator. thiazole accelerator a ɛnyɛ awuduru, nanso ne stroch bere yɛ tiaa, vulcanization ahoɔhare a ɛwɔ su a ɛwɔ gyinaesi no mu wɔ tae a wɔyɛ no mu sɛ nea ɛto so abien a ɛyɛ accelerator titiriw no da adi, dodow no ara a wɔde di dwuma no, nea wɔde di dwuma no yɛ nea wɔde di dwuma kɛse, no yɛ nea wɔde di dwuma wɔ accelerator mu
Sulfonamide accelerator Ɛnyɛ den sɛ wɔbɛyɛ ho adwuma na ahobammɔ, ntɛmntɛm curing ahoɔhare ne soro honam fam ne mfiridwuma su gye atifi tae production accelerator ahorow, a wɔtaa de di dwuma accelerator a MBS / NOBS, TBBS / NS, CBS / CZ, DCBS / DZ{0}}
MBS yɛ nitrosamines, tae a wɔyɛ wɔ aman a wɔanya nkɔso atɔe fam ne mmeae a wɔde di dwuma no agyae sɛ wɔde accelerator no bedi dwuma, ɛda so ara de saa ade yi. tae taa de thiuram accelerator kakraa bi ka ho sɛ accelerator a ɛto so abien, mmoa ahorow a wɔtaa de di dwuma ne tetramethyltholtholthiram disulfide TMTDD, com conduce donor monp://saminess don{} Dithiodorphorphine DTDM, a ɛno nso ma nitrosamines.
Nneɛma a wɔde yɛ nneɛma ahorow abiɛsa a ɛwɔ atifi hɔ no betumi ama nitrosamines a epira nnipa akwahosan, EU no abɔ Reach Regulation no ho dawuru pefee sɛ nneɛma a wɔde kɔ EU no bara sɛ wɔmfa atifi hɔ nneɛma a wɔde di dwuma no nni dwuma. nea edidi so yi yɛ akwan foforo a ɛwɔ hɔ a wɔfa so de nneɛma a atwa yɛn ho ahyia ho nhyehyɛe foforo a ɛwɔ hɔ a wobetumi de ayɛ nhwehwɛmu no bi:
1 betumi adi dwuma mmom sen TBBs / NS, nanso ɛsɛ sɛ wɔde anti-scorching agent CTP pii ka ho;
2. mmom sen TBSI, N-Tert-butyl-bis (2-benzothiazole) sulfenamide scorch a ɛda NOBS ne DZ ntam no, ne bo no sua koraa. TBSI nnuru din NT-butyl-bis ({8}}benzothazole) accelerator, aben, Abbeleator Accelerator. Saa adeɛ yi yɛ deɛ wɔde di dwuma wɔ plastic nneɛma mu de trɛ scorch berɛ mu ne slow cure rate su. TBSI sɛ wɔde toto TBBs ho a, ɛnam ne molecule mu duru kɛseɛ, ɔhyeɛ a ɛgyina yie, nsuo a ɛyɛ hyew a ɛkorɔn sene TBSS 30℃, a ɛwɔ scarch bere tenten, curing speed ne so no, TPBs a wɔde di dwuma wɔ CTBS so no, TBS ne TWBS no taa de mprempren gbsch no di dwuma wɔ prestant with present with present with fficter with prefent CTP nko ara. Nea ɛka ho no TBSI nso wɔ nsuo-gyinabea, a ɛnyɛ den sɛ wɔbɛkora so; a ɛma vulcanization a ɛwɔ abɔde mu rɔba rɔba vulcanization reducibility mu no tu mpɔn kɛse; Wɔ rɔba ne waya a wɔde kyekyere nneɛma mu no mu no, ɛyɛ adwuma yiye; Wobetumi de adi dwuma ama elastomer no nyinaa, titiriw ma ɔko a wɔde ko tia reduction ahwehwɛde ahorow a ɛkorɔn a ɛyɛ den ne nea ɛkeka ho.
3. CBS betumi adi dwuma sen sɛ wɔde bedi dwuma, ɛrenyɛ N-nitrosamines accelerator, ɛyɛ pɛpɛɛpɛ sɛ wɔde besi NOBS ananmu, vulcanization rate no yɛ pɛpɛɛpɛ. Scorch adwumayɛ a eye kakra sen NOBS ne CZ, vulcanized rɔba ne NOBS honam fam nneɛma nso yɛ nea wɔde di dwuma kɛse wɔ nkurow akɛse mu tae ne rɔba nneɛma afoforo mu.
4. wobetumi de adi dwuma mmom sen XT580, N-fatty benzothiazole sulfenamide, ne dwumadie nobs koraa, nanso ɛnyɛ awuduru nso, ɛboɔ no sua sene nobs.
MBS / NOBS: .
TMTD a ɛma nneɛma yɛ adwuma ntɛmntɛm: .
{0}} TBZTD (Tetrabenzylthiuram disulfide) betumi adi dwuma mmom, a ɛwɔ ahobammɔ a ɛyɛ papa ne nea ɛko tia nsakrae; TBZTD din ne tetrabenzylthiuram disulfide, wɔatwa no tiaa sɛ TBZTD. Saa ade yi yɛ thiuram accelerant a wɔayɛ no foforo a ebetumi asi TMTD ananmu (Thouram tetramethyldisulfide) na wobetumi de adi dwuma sɛ ade titiriw a ɛma accelerator ne rapid vulcaner, ne nipadua no yɛ awufo a wɔyɛ no ntɛmntɛm no ano aduru Rɔba. dwumadie no yɛ ahobanbɔ kɛseɛ na ɛwɔ stroch berɛ tenten sene tmtd. ɛnam ne molecule mu duru kɛseɛ, nsuo a ɛyɛ nwini a ɛkorɔn ne decomposition a ɛyɛ den nti, TBZTD mma nitrosamines. tbztd, titire no, wɔ ntɛtea a ɛba fam kakra sene TMTD {8} no ne ne nipadua foforɔ no yɛ deɛ ɛyɛ adwuma wɔ Tmdd no so Thiochlamid vulcanization accelerator ahorow foforo.
Aduruyɛfoɔ a ɔhwɛ ayaresa so DTDM: .
1. dtdc (n, n'-dithio caprolactam) betumi adi dwuma sen sɛ wɔde crystalline form fitaa bedi dwuma, melting point a ɛyɛ 120 ~ 122℃, active sulfur mass fraction a ɛsõ sen0 19. a ɛne no sɛ replacement curing agent dtdm, a ɛnsakra formula no ne ɔkwan a wɔfa so yɛ rɔfo no ho mfonini no ho mfonini of the sulfur to form an effective or semi-effective vulcanization system. Esiane sɛ vulcanizing agent DTDC tumi gyae sulfur a ɛyɛ adwuma wɔ vulcanization tebea a ɛfata mu na ɛyɛ sulfur monosulfide ne disulfide nkitahodi a ɛda rɔba molecule ahorow a ɛwɔ sulfur a wɔde aka ho no ntam nti, rɔba vulcanization network nhyehyɛe no betumi ayɛ nea ɛyɛ den sen biara a wɔde gyina hɔ ma volid ne nhyɛso a wɔde si hɔ no ne nhyɛso a wɔde si hɔ no ano aduru ne nhyɛso a wɔde si hɔ ne nhyɛso a wɔde hyɛ wɔn ho so ne nhyɛso a wɔde hyɛ wɔn ho so ne nhyɛso a wɔde ma wɔ ɔkwan a wɔfa so yɛ adwuma no so na ɛma nsu no yɛ kɛse a wɔde hyɛ wɔn ho so na ɛma nsu no yɛ kɛse a wɔde hyɛ wɔn ho so. Afei nso ɛwɔ su a ɛne sɛ ɛnyɛ nhwiren, ahobammɔ a ɛyɛ hyew, ahoɔhare a wɔde sa yare, ne tae ne nneɛma afoforo a ɛyɛ fɛ a wɔde rɔba ayɛ, rɔba nneɛma a ɛko tia ɔhyew, akwahosan rɔba nneɛma ne rɔba nneɛma a ɛwɔ kɔla, aduru a eye sen biara a wɔde sa yare.
{0}} alkyl phenol disulfide (vultac-5) betumi adi dwuma sen sɛ, alkyl phenol disulfide, a ɛfata ma polar rɔba nhyehyɛe ahorow ne ɔfasu fitaa.
3. sɛ anka wode aliphatic polysulfides bedi dwuma.