O a meafaitino o oloa palasitika?

O a meafaitino o oloa palasitika?

O oloa palasitika e masani ona vaevaeina i ni ituaiga se lua o le thermoplastic ma le thermosetting, o loʻo i lalo se faʻamatalaga auiliili, ou te faʻamoemoe e fesoasoani.

1. Temoplastika

Thermoplastics, e lauiloa foi o resins thermoplastic, o le vaega autu o palasitisi.E faia i mea faʻapipiʻi polymer e mafai ona tafe le tasi i le isi e ala i le faʻafefeteina i le vevela ma mafai ona toe faʻamalolo.O mea nei e masani ona maualuga le mamafa mole mole ma e iai se fa'asologa o filifili mole mole.Thermoplastics e mafai ona gaosia e ala i tui tui, extrusion, feula, calendering ma isi faiga e fai ai vaega ma oloa o foliga eseese ma lapoa.

(1) Polyethylene (PE): PE o se tasi o palasitika sili ona taatele, faʻaaogaina lautele i afifiina, paipa, insulators uaea ma isi faʻamoemoega.E tusa ai ma lona fausaga mole ma le mamafa, e mafai ona vaevaeina PE i polyethylene maualuga (HDPE), polyethylene maualalo (LDPE) ma le laina maualalo polyethylene (LLDPE).

Polypropylene (PP) : O le PP foi o se palasitika masani, e masani ona faʻaaogaina i pusa, fagu, ma masini faʻafomaʻi.O le PP o se palasitika semi-crystalline, o lea e sili atu ona faigata ma sili atu le manino nai lo le PE.

(3) Polyvinyl chloride (PVC): PVC o se tasi o le lalolagi aupito maualuga le gaosiga o palasitika, faʻaaogaina lautele i mea faufale, insulators uaea, afifiina ma masini faafomai ma isi fanua.PVC e mafai ona lanu ma e tetee i le tele o vailaʻau.

(4) Polystyrene (PS): O le PS e masani ona faʻaaogaina e fai ai mea mama mama, mea faʻapipiʻi manino, e pei o pusa meaʻai ma pusa teu.PS o loʻo faʻaaogaina lautele e fai ai foam, pei ole EPS foam.

Acrylonitrile-butadiene-styrene copolymer (ABS) : ABS o se palasitika faigata, e mafai ona faʻaaogaina e fai ai au meafaigaluega, fale eletise, ma vaega taʻavale.

(6) Isi: E le gata i lea, e tele isi ituaiga o thermoplastics, e pei o le polyamide (PA), polycarbonate (PC), polyformaldehyde (POM), polytetrafluoroethylene (PTFE) ma isi.

2, palasitika thermosetting

O palasitika fa'ameamea o se vasega fa'apitoa o palasitika, e ese mai i mea fa'agata.O mea nei e le faamaluluina ma tafe pe a vevela, ae faʻamalolo i le vevela.Thermosetting plastics e masani lava ona maualuga atu le malosi ma le ma'a'a ma e talafeagai mo fa'aoga e mana'omia ai le umi ma le malosi.

Epoxy resin (EP): Epoxy resin o se palasitika thermosetting faigata tele faʻaaogaina i le fausiaina, mea tau eletise ma fale taʻavale.Epoxy resins e mafai ona gaoioi fa'ama'i fa'atasi ma isi mea e fai ai ni mea fa'apipi'i malosi ma fa'alavalava.

(2) Polyimide (PI): O le Polyimide o se palasitika sili ona vevela e mafai ona faʻatumauina ona meatotino i le vevela maualuga.E fa'aaogaina lautele i le aerospace, mea fa'aeletonika ma fale ta'avale e gaosia ai vaega maualuga ma fa'alavalava.

(3) Isi: E le gata i lea, e tele isi ituaiga o palasitika thermosetting, e pei o le phenolic resin, furan resin, unsaturated polyester ma isi.