Shenyang SUNYJOINT nga ni uyo wakupeleka Rubber Additives, Nchakumanyikwa makora kuti MBS / NOBS, TMTD, DTDM na ŵanyake awo ŵakukhozgera ŵazamuwuskapo nayitrosamine carcinogens mu vinthu vyapakati vya vulcanization reaction. Kasi mungasankha wuli nthowa zinyake? Nkhukhumba kugwiliskira ntchito ndondomeko ya vulcanization ya chilengiwa kuti nichitenge na EU, wonani musi umu!
Vinthu ivyo vikugwiriskirika nchito chomene pa kupanga matayala vikusazgapo sulfanemide accelerators na thiazole ecelerators. Thiazole accelerator ni vyambura poizoni, kweni nyengo yake ya scorch njakufupi, ndipo chiŵelengero cha vulcanization chikuwoneska kuti kupanga mu matayala kukuchitika chomene nga ni acreerator yachiŵiri, ndipo ndalama zenizeni ni zichoko. Mapulogalamu ghakuru ghakukhozgera M na DM{.
Kugwira ntchito kwakukwana kwa sulfanemide accelerators na chivikiliro chiwemi cha kupanga, liwiro la vulcanization na katundu wakukwera wakuthupi na wa makina vikutora malo ghakwamba mu acreerators yakupanga matayala . Vinthu vyakuchitika vikusazgapo MBS / NOBS, TBBS / NS, CBS / CZ, DCBS / CZ, DCBS{}} /DZ{} / DZ{} / DZ{}
MBS yikupanga nitrosines, iyo yalekeka na makampani gha matayala mu vyaru vyakutukuka na vigaŵa vya ku West. Chinthu ichi chikugwiriskirika nchito mu China . Chinthu chichoko waka cha thiuram accelerator kanandi chikusazgikira nga ni chinthu chachiŵiri icho chikupangika mwaluŵiro mu kupanga matayala . Chinthu icho chikugwiriskirika nchito chomene ni tetramethylthiuram TMTD, iyo yikupanga nitrosamines. Mitundu yakupambanapambana iyo yikugwiriskirika nchito comene mu awo ŵakupeleka sulfure ni DTDM ya dithiodimormorpholine, iyo nayo yikupanga nayitrosamines . .
Vinthu vitatu ivyo vyalongosoreka pacanya apa vingapangiska kuti nitrosamines yiŵe yakupweteka thupi la munthu . Malango gha REACH agho ghakulongosoreka na European Union ghali kuyowoya makora kuti vinthu ivyo vikuguliskika ku EU vikukanizgika kugwiliskira nchito vinthu vyakupangika ivyo vili pacanya apa . Vinthu ivi ni vinyake vyakwenelera vyakukhwaskana na chilengiwa kuti vimanyikwe:
1. TBBBS / NS yingagwiriskikiya nchitu m’malo mwake, kweni CTP ya retarder yinandi yikhumbika kusazgiyapu;
2. TTII yingagwiliskirika ntchito m'malo mwa N-tert-butyl-bis(2- benzothiazole) sulfanemide. Msonkho uli pakati pa NOBS na DZ, ndipo mtengo uli pasi pa . zina la kemiko ya TBSI N-tert-bis ({10}}benzothiazole) accelerator, wakufupika TBSI, nayo ni sulfenamide accelerator . Chinthu ichi chikugwiriskirika nchito mu chigaŵa ichi kuti chisazgireko nyengo ya scorch na kuchepeskako chiŵelengero cha vulcanization . Kuyananizga na TBBS, TBSI yili na kulemera kwa maselo, kukhazikika makora kwa maselo, ndipo malo ghakusungunuka ghakukwera kuluska TBSS na 30 degrence C. Lili na uwemi wa nyengo yitali na vulcanization liwiro. sonosono apa, TBSS kanandi yikugaŵika na CTP ya retarder ya retarder, ndipo TBSI yingagwiliskirika ntchito yekha m’malo mwa TBBS + CTP . Kusazga apo, TBSI nayo yili na kukhazikika kwa maji-kukhazikika na kusungirako vipusu; lingapangiska kuti rabala yileke kuchepeskeka ku sulfure ku sulfure para vulcanizing labala wachilengiwa; likuchita makora mu vyakupangika vya labala; lingagwiriskikiya nchitu mu vigaŵa vosi vo vikhumbika, ukongwa pa vinthu vo vikhumbika kuchitiska kuti ŵanthu aleki kugaŵiya vinthu . Kuwonda kwapachanya ndipuso vinthu vinyaki . .
3. Yingasinthika na CBBS, ndipo yingapanga yayi accelerator ya N-nitrosamines . Para yasinthika na NOBS mu ndalama zakuyana waka, chiŵelengero cha vulcanization chili chakuyana chomene . Kugwira ntchito kwa korch nkhwawemi pachoko kuluska NOBS na CZ. Vinthu vyakuwoneka vya vulcanizate vikuyana waka na NOBS, ndipo vikugwiriskirika nchito chomene mu matayala gha msumba na vinyake vyakupangika vya labala {.
4. XT580 yingagwiliskirika ntchito m'malo mwa N-fatty benzothiazole sulfanemide, ntchito yake yikuyana chomene na NOBS, palije poizoni, mtengo wake ngwapasi kuluska NOBS. .