Iyini i-thermoplastics?
I-Thermoplastics ikilasi lamapulasitiki ayipulasitiki ezingeni elithile lokushisa, aqina ngemva kokupholisa, futhi akwaziepekule nqubo. Isakhiwo samangqamuzana sibonakala ngenhlanganisela ye-polymer ewumugqa, ngokuvamile engenawo amaqembu asebenzayo, futhi ayihlanganisi i-intermolecular crosslinking lapho ishiswa. Imfucuza ingacutshungulwa kabusha ibe yimikhiqizo emisha ngemva kokugaywa kabusha. Izinhlobo eziyinhloko ziyi-polyolefin (ama-vinyls, ama-olefin, ama-styrenes, ama-acrylates, ama-olefin aqukethe i-fluorine, njll.), i-cellulose, i-polyester polyester kanye nama-polymers e-Aromatic heterocyclic, njll.
Incazelo
I-Thermoplastics yipulasitiki esetshenziswa kakhulu. Akhiwe nge-thermoplastic resin njengengxenye eyinhloko nezithasiselo ezihlukahlukene. Ngaphansi kwezimo ezithile zokushisa, amapulasitiki angathambisa noma ancibilike kunoma yikuphi ukuma, futhi isimo sihlala singashintshile ngemva kokupholisa; lesi simo singaba ngu-repeidliwe izikhathi eziningi futhi ihlala inepulasitiki, futhi lokhu repeI-tition ingushintsho olungokomzimba kuphela, olubizwa ngokuthi i-thermoplastic. ipulasitiki.
Kuhlanganisa i-polyethylene, i-polypropylene, i-polyvinyl chloride, i-polystyrene, i-polyoxymethylene, i-polycarbonate, i-polyamide, amapulasitiki e-acrylic, amanye ama-polyolefin nama-copolymers awo, i-polysulfone, i-polyphenylene ether
Ukuhlukaniswa Kwesakhiwo
Ama-Thermoplastics angahlukaniswa abe amapulasitiki enhloso ejwayelekile, amapulasitiki obunjiniyela, namapulasitiki akhethekile ngokuya nezici zawo zokusebenza, ukusetshenziswa okubanzi, kanye nokuhlukahluka kobuchwepheshe bokubumba.
Izici eziyinhloko zamapulastiki enhloso evamile yilezi: ukusetshenziswa okubanzi, ukucubungula okulula, nokusebenza okuhle okuphelele. Njenge-polyethylene (PE)i-polyvinyl chloride (PVC), i-polypropylene (PP), i-polystyrene (PS), i-acrylonitrile-butadiene-styrene (ABS) yaziwa nangokuthi "amapulasitiki amahlanu ajwayelekile".
Izici zepulasitiki yobunjiniyela namapulasitiki akhethekile yilezi: izakhiwo ezithile kanye nezakhiwo zama-polymers aphezulu zivelele kakhulu, noma ubuchwepheshe bokucubungula ukubumba bunzima, njll., futhi buvame ukusetshenziswa kubunjiniyela bomsebenzi noma izinkambu ezikhethekile nezikhathi. Amapulasitiki amakhulu wobunjiniyela yilezi: inayiloni (inayiloni), i-polycarbonate (PC), i-polyurethane (PU), i-polytetrafluoroethylene (i-Teflon, PTFE), i-polyethylene terephthalate (PET), njll., Ipulasitiki ekhethekile efana "nama-valve enhliziyo yokwenziwa" kanye "namalunga okwenziwa" njengokuthi "ama-polymers ezokwelapha".