PBT ndi chidule cha Polybutylene terephthalate. Imagawidwa mu mndandanda wa polyester. Imapangidwa ndi 1.4-Butylene glycol ndi terephthalic acid (TPA) kapena terephthalate (DMT). Ndi utomoni wa polyester wa thermoplastic wonyezimira ngati mkaka wowala mpaka wosawoneka bwino, wopangidwa kudzera mu njira yopangira zinthu. Pamodzi ndi PET, imatchedwa polyester ya thermoplastic, kapena polyester yodzaza.
Makhalidwe a PBT Plastiki
1. Kusinthasintha kwa pulasitiki ya PBT ndi kwabwino kwambiri ndipo imapiriranso kugwa, ndipo kulimba kwake ndi kolimba.
2. PBT siiyaka ngati pulasitiki wamba. Kuphatikiza apo, ntchito yake yozimitsa yokha komanso mphamvu zake zamagetsi ndizokwera kwambiri mu pulasitiki iyi ya thermoplastic, kotero mtengo wake ndi wokwera mtengo pakati pa mapulasitiki.
3. Kagwiritsidwe ntchito ka PBT koyamwa madzi ndi kochepa kwambiri. Mapulasitiki wamba amawonongeka mosavuta m'madzi ndi kutentha kwakukulu. PBT ilibe vutoli. Itha kugwiritsidwa ntchito kwa nthawi yayitali ndikusunga magwiridwe antchito abwino kwambiri.
4. Pamwamba pa PBT ndi posalala kwambiri ndipo coefficient ya friction ndi yaying'ono, zomwe zimapangitsa kuti ikhale yosavuta kugwiritsa ntchito. Komanso chifukwa coefficient yake ya friction ndi yaying'ono, kotero nthawi zambiri imagwiritsidwa ntchito nthawi zina pamene friction loss ndi yayikulu.
5. Pulasitiki ya PBT imakhala ndi kukhazikika kwamphamvu bola ngati yapangidwa, ndipo imakhudza kwambiri kulondola kwa miyeso, kotero ndi pulasitiki yapamwamba kwambiri. Ngakhale mu mankhwala a nthawi yayitali, imatha kusunga mawonekedwe ake oyambirira bwino, kupatulapo zinthu zina monga ma asidi amphamvu ndi maziko olimba.
6. Mapulasitiki ambiri ndi abwino kwambiri, koma zipangizo za PBT sizolimba. Makhalidwe ake oyenda ndi abwino kwambiri, ndipo magwiridwe ake ogwirira ntchito adzakhala abwino kwambiri akapangidwa. Chifukwa chakuti imagwiritsa ntchito ukadaulo wa polymer fusion, imakwaniritsa makhalidwe ena a alloy omwe amafunikira polima.
Kugwiritsa ntchito kwakukulu kwa PBT
1. Chifukwa cha mphamvu zake zabwino zakuthupi ndi zamakemikolo, PBT nthawi zambiri imagwiritsidwa ntchito ngati chinthu chotulutsira ulusi wachiwiri mu chingwe cha ulusi wakunja.
2. Kugwiritsa ntchito zamagetsi ndi zamagetsi: zolumikizira, zida zosinthira, zida zapakhomo kapena zowonjezera (kukana kutentha, kuletsa moto, kutchinjiriza magetsi, kuumba ndi kukonza mosavuta).
3. Magawo ogwiritsira ntchito zida zamagalimoto: ziwalo zamkati monga mabulaketi opukutira, mavavu owongolera, ndi zina zotero; zida zamagetsi ndi zamagetsi monga mapaipi opindika a automobile ignition coil ndi zolumikizira zamagetsi zokhudzana nazo.
4. Zida zonse zogwiritsira ntchito makina: chivundikiro cha kompyuta, chivundikiro cha nyali ya mercury, chivundikiro cha chitsulo chamagetsi, zida za makina ophikira ndi zida zambiri, makamera, mabatani, zipolopolo zamawotchi zamagetsi, zobowolera zamagetsi ndi zipolopolo zina zamakanika.
Nthawi yotumizira: Dec-07-2022