Thermoplastic Polima

Pulasitiki ya thermoplastic ndi mtundu wa pulasitiki womwe umatha kusungunuka ndikuwumbidwanso kangapo popanda kusintha kwambiri mankhwala. Katunduyu ndi chifukwa chakuti ma polima a thermoplastic amapangidwa ndi unyolo wautali wa repemayunitsi otchedwa monomers, omwe amagwirizanitsidwa ndi mphamvu zofooka za intermolecular.

Ma polima a Thermoplastic amagwiritsidwa ntchito kwambiri m'mafakitale ambiri, kuphatikiza magalimoto, zomangamanga, zonyamula, komanso zaumoyo. Amawakonda kuposa mapulasitiki amitundu ina chifukwa ndi osavuta kukonza komanso nkhungu, ndipo amatha kupangidwa mochulukira pamtengo wotsika.

Ubwino umodzi waukulu wa polima wa thermoplastic ndikuti amatha kupangidwa kukhala mawonekedwe ovuta komanso mawonekedwe. Izi zimatheka potentha polima kutentha pamwamba pa malo ake osungunuka, zomwe zimapangitsa kuti mphamvu za intermolecular zifooke ndipo polima kukhala madzimadzi ambiri. Polimayo ikafika pachimake chomwe chimafunidwa, imatha kupangidwa kuti ikhale yofunidwa pogwiritsa ntchito njira zosiyanasiyana, kuphatikiza jekeseni, kutulutsa, ndi kuwomba.

Ubwino wina wa polima wa thermoplastic ndikutha kubwezerezedwanso ndikugwiritsidwanso ntchito. Chifukwa amatha kusungunuka ndi kupangidwanso kangapo osasintha kwambiri mankhwala, ma polima a thermoplastic amatha kubwezeretsedwanso ndikugwiritsidwa ntchito kupanga zatsopano. Izi zimachepetsa zinyalala ndikusunga zinthu, kupangitsa ma polima a thermoplastic kukhala njira yabwino yosamalira zachilengedwe kuposa mapulasitiki amitundu ina.

Pali mitundu yosiyanasiyana ya ma polima a thermoplastic, iliyonse ili ndi mawonekedwe akeake komanso mawonekedwe ake. Ena mwa ma polima omwe amagwiritsidwa ntchito kwambiri ndi thermoplastic ndi polyethylene, polypropylenepolystyrene ndi polyvinyl chloride (PVC).

• Polyethylene ndi pulasitiki yopepuka, yosinthika, komanso yolimba yomwe imagwiritsidwa ntchito kwambiri pakuyika, kupanga, ndi kupanga magalimoto. Zimagonjetsedwa ndi chinyezi ndi mankhwala, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'madera omwe zinthuzi zilipo.
• Polypropylene ndi pulasitiki yolimba komanso yolimba yomwe imagwiritsidwa ntchito kwambiri pamagalimoto, kulongedza, ndi kumanga. Ili ndi malo osungunuka kwambiri, zomwe zimapangitsa kuti zisawonongeke ndi kutentha ndi mankhwala.
• Polystyrene ndi pulasitiki yopepuka komanso yolimba yomwe imagwiritsidwa ntchito kwambiri pakuyika, kutchinjiriza, ndi zinthu zogula. Ndi insulator yabwino ndipo imagonjetsedwa ndi chinyezi ndi mankhwala.
• PVC ndi pulasitiki yosunthika yomwe imagwiritsidwa ntchito kwambiri pomanga, chisamaliro chaumoyo, ndi katundu wogula. Ndi yosinthika, yolimba, komanso yosamva chinyezi ndi mankhwala.

Mwachidule, ma polima a thermoplastic ndi gulu lazinthu zapulasitiki zomwe zimatha kusungunuka ndikuwumbidwanso kangapo popanda kusintha kwambiri mankhwala. Amagwiritsidwa ntchito kwambiri m'mafakitale ambiri chifukwa chosavuta kukonza, kutha kupangidwa kukhala mawonekedwe ovuta, komanso kubwezeretsedwanso. Pali mitundu yambiri yosiyanasiyana ya ma polima a thermoplastic, iliyonse ili ndi mawonekedwe ake komanso mawonekedwe ake.