Elastomer ya polyurethane ndi mtundu wa chinthu chomwe chimagwiritsidwa ntchito kwambiri, chimakhala ndi kusinthasintha kwabwino, kulimba komanso kusawonongeka, kotero chimagwiritsidwa ntchito kwambiri m'mbali zonse za moyo. Chimodzi mwazinthu zofunika kwambiri popanga ma elastomer a polyurethane ndikugwiritsa ntchito ma catalyst omwe amafulumizitsa zochita za mankhwala popanga zinthu zomaliza. Ma catalyst awa ndi ofunikira powongolera njira ya polymerization, kuonetsetsa kuti zinthu zomwe zimafunidwa za elastomer zakwaniritsidwa. Pakati pa ma catalyst osiyanasiyana omwe alipo, MXC-A33 ili ndi kapangidwe kake kapadera komwe kangagwiritsidwe ntchito mu mitundu yosiyanasiyana ya ma polyurethane thovu ndi ma elastomer.
Kodi ndi chiyaniMXC-A33?
MXC-A33 ndi chothandizira cha polyurethane chomwe chimawonjezera kuyanjana pakati pa ma polyol ndi ma isocyanates, omwe ndi zigawo zazikulu za zinthu za polyurethane. Chothandizirachi chimapangidwa ndi 33% TEDA (triethylene diamine) ndi 67% DPG (monoconjugated dipropylene glycol). Kapangidwe kameneka kamapereka magwiridwe antchito abwino kwambiri popanga ma polyurethane thovu ndi ma elastomers.
- Triethylenediamine (TEDA): Chothandizira kwambiri cha tertiary amine chomwe chimalimbikitsa kuchitapo kanthu kwa gelling pakati pa magulu a hydroxyl ndi isocyanate.
- DPG (Monoconjugated Dipropylene Glycol): Chosungunulira chomwe chimathandiza kuchepetsa kukhuthala ndikuwongolera kusakaniza kwa zinthu, kuonetsetsa kuti njira yochitira zinthu ikuyenda bwino.
Kugwiritsa ntchito mu Polyurethane Elastomers
MXC-A33 imagwiritsidwa ntchito kwambiri popanga ma elastomer a polyurethane chifukwa cha mphamvu yake yolinganiza bwino, zomwe zimatsimikizira kuti polymerization reaction imachitika pamlingo wolamulidwa. Kuwongolera kumeneku ndikofunikira popanga ma elastomer okhala ndi mphamvu zamakanika zomwe zimafunidwa monga kusinthasintha, mphamvu yokoka komanso kukana kukalamba.
Chothandizirachi chimalimbikitsa kupangidwa kwa mapangidwe ofanana a polima olumikizidwa, omwe amatha kukwaniritsa magwiridwe antchito a elastomers pakugwiritsa ntchito kofunikira. Ma elastomers a polyurethane opangidwa kuchokera ku MXC-A33 amagwiritsidwa ntchito kwambiri m'zigawo zamagalimoto, ma roller amafakitale, ndi zisindikizo zapamwamba, zomwe zimapangitsa kuti zikhale zolimba komanso zotanuka.
Mapeto
Kugwiritsa ntchitozinthu zoyambitsa polyurethaneMonga MXC-A33 popanga elastomer, chinthu chofunikira kwambiri pakutsimikizira kuti zinthuzo zikugwira ntchito bwino komanso kudalirika. Kuphatikiza kwake kwapadera kwa TEDA ndi DPG kumapangitsa kuti zikhale zogwira mtima kwambiri pa ntchito za thovu ndi elastomer, zomwe zimathandiza opanga kupanga zinthu zapamwamba komanso zolimba m'mafakitale osiyanasiyana.
Nthawi yotumizira: Disembala-09-2024