Yiziphi i-thermoplastics? Uyini umehluko phakathi kwabo namapulasitiki e-thermosetting?

I-Thermoplastics ibhekisela kumapulasitiki athambisayo lapho eshiswa futhi abe lukhuni lapho epholile. Iningi lamapulasitiki esiwasebenzisayo ekuphileni kwethu kwansuku zonke akulesi sigaba. Lapho zishisa, ziyathambisa futhi zigeleze, futhi lapho zipholile, ziqina. Le nqubo iyabuyiseleka emuva futhi ingaphinda.

I-Thermoplastics ayilingani namaplastiki we-thermosetting.

Amapulasitiki e-Thermoplastic kanye ne-thermosetting yizinhlobo ezimbili eziyinhloko zamapulasitiki.

Izici ze-thermoplastics yilezi:

Lapho zishiselwa, ziyathamba futhi ziwohloke, futhi lapho sezipholile, ziqine zibuyele esimweni sazo sokuqala. Le nqubo ingaphinda izikhathi eziningi.

Isakhiwo samangqamuzana sinomugqa noma sinegatsha, futhi kukhona amandla abuthaka kuphela e-van der Waals phakathi kwama-molecule, futhi akukho ukuxhumanisa kwamakhemikhali.

I-thermoplastics emele ihlanganisa i-polyethylene, i-polypropylene, i-polystyrene, i-polyvinyl chloride, njll.

Izici zepulasitiki ye-thermosetting yilezi:

Lapho kushisa, ukusabela kwamakhemikhali okungenakuhlehliswa kuzokwenzeka, okubangela ama-molecule awo ukuba akhe uhlaka lwenethiwekhi olunezinhlangothi ezintathu eziphambanayo, ezingeke zisathamba futhi ziwohloke.

Kukhona izibopho ezihlangene phakathi kwama-molecule ukwakha isakhiwo senethiwekhi esinezinhlangothi ezintathu ezinzile.

Amapulasitiki amele i-thermosetting afaka i-phenolic resin, i-epoxy resin, i-polyester resin, njll.

Ngokuvamile, thermoplastics kukhonaipulasitiki futhi igaywa kabusha, kuyilapho amapulasitiki e-thermosetting enamandla amakhulu nokumelana nokushisa, futhi kokubili kunezinhlelo zokusebenza ezibalulekile embonini yepulasitiki.

Ngakho-ke kufanele sibhekane kanjani nemfucuza eshisayo ekhiqizwa i-thermoplastics ohlelweni lokukhiqiza? Isibonelo, udoti oshisayo ovela embonini yokubumba umjovo yamapulaki ezintambo zamandla kanye nomkhakha wokukhipha izintambo nezintambo. Imishini yokubumba umjovo wentambo yamandla kanye nama-extruder ekhebula azokhipha imfucuza eshisayo nsuku zonke. Kushiye kanjaloI-ZAOGE isixazululo esiyingqayizivele sokugaywa kabusha.I-ZAOGE ukugaya osheshayo okuku-inthanethi kanye nokusetshenziswa kwemfucuza eshisayo ngokushesha, izinto ezichotshoziwe ziyiyunifomu, zihlanzekile, azinalo uthuli, azingcolisi, ikhwalithi ephezulu, zixutshwe nezinto ezingavuthiwe ukukhiqiza imikhiqizo yekhwalithi ephezulu.