1. Folasaga
O le Polystyrene (PS) o se polymer thermoplastic sili ona lelei ma taugofie e masani ona faʻaaogaina i le afifiina, oloa faʻatau, ma le fausiaina. E maua i ituaiga muamua e lua—General Purpose Polystyrene (GPPS, crystal clear) ma High Impact Polystyrene (HIPS, toughened with rubber)—PS e fa'atauaina mo lona malosi, faigofie o le gaosiga, ma le gafatia. O lenei tusiga e su'esu'e ai meatotino a le PS plastic, fa'aoga autu, metotia fa'agaioiga, ma va'aiga maketi.
2. Meatotino o le Polystyrene (PS)
PS o loʻo ofoina atu uiga faʻapitoa e faʻatatau i lona ituaiga:
A. Polystyrene Fa'amoemoe Lautele (GPPS)
- Va'aiga Va'aia - Malamalama, foliga tioata.
- Ma'a'a & Brittleness - Faigata ae faigofie ona ta'e i lalo o le atuatuvale.
- Māmā – Maualalo (~1.04–1.06 g/cm³).
- Insulation Eletise - Faʻaaogaina i mea tau eletise ma mea faʻaaogaina.
- Tete'e Vailaau - Tetee vai, acids, ma alkalis ae solo i solvents pei acetone.
B. Polystyrene High Impact (HIPS)
- Faʻaleleia le Malosi - O loʻo i ai le 5-10% polybutadiene paʻu mo aʻafiaga o aʻafiaga.
- Opaque Faʻaaliga - Faʻaitiitia le manino nai lo le GPPS.
- Fa'afaigofie le fa'anofoina o le vevela - Lelei mo le afifiina o mea'ai ma atigipusa lafoa'i.
3. Fa'aoga autu o PS Plastic
A. Alamanuia Fa'atau
- Ipu Mea'ai (Ipu lafoa'i, atigi uu, mea'ai)
- CD & DVD Cases
- Foam Puipuia (EPS - Polystyrene Faʻalauteleina) - Faʻaaogaina i le afifiina o pinati ma le faʻafefe.
B. Oloa Fa'atau
- Meataalo ma mea tusi (piliki pei LEGO, pusa peni)
- Koneteina Teuga (Ipu fa'ama'i, fa'au lipstick)
C. Fa'aeletonika & Meafaigaluega
- Laina pusaaisa
- Ufiufi Fa'aaliga manino (GPPS)
D. Fausiaina & Insulation
- EPS Foam Boards (Faufale faufale, sima mama)
- Mea teuteu
4. Fa'agaioiina Metotia mo PS Plastic
PS e mafai ona gaosia e faʻaaoga ai le tele o metotia:
- Su'i tui (E masani mo oloa malō pei o tipi)
- Extrusion (Mo pepa, ata tifaga, ma talaaga)
- Thermoforming (Fa'aoga ile afifiina o mea'ai)
- Foam Moulding (EPS) - Faʻalauteleina PS mo le faʻamaʻaina ma le faʻafefe.
5. Fa'asologa o Maketi & Lu'itau (2025 Va'aiga)
A. Fa'atumauina & Fa'atonu Fa'atonu
- Fa'asa ile Fa'aoga Tasi PS – Tele atunu'u e fa'atapula'aina oloa fa'aaogāina ole PS (fa'ata'ita'iga, Fa'atonuga a le EU mo le Fa'aaogā Fa'atasi a le EU).
- Recycled & Bio-Based PS - Fa'atupula'ia le mana'oga mo isi mea fa'alelei.
B. Fa'atauvaga mai isi Palasitika
- Polypropylene (PP) - Sili atu le vevela ma tumau mo le afifiina o meaai.
- PET & PLA - Faʻaaogaina i totonu o faʻapipiʻi toe faʻaaogaina / biodegradable.
C. Fa'aitulagi Maketi Dynamics
- Asia-Pasefika (Saina, Initia) e pulea le gaosiga o le PS ma le taumafaina.
- Amerika i Matu & Europa e taulaʻi i le toe faʻaaogaina ma le faʻaogaina o le EPS.
- O Sasa'e Tutotonu o lo'o fa'atupe i le gaosiga o PS ona o le maualalo o tau o mea'ai.
6. Fa'ai'uga
O le Polystyrene o lo'o tumau pea le palasitika autu i le afifiina ma oloa fa'atau ona o le taugofie ma le faigofie o le gaosiga. Peita'i, o atugaluga o le si'osi'omaga ma tulafono fa'asa mo le fa'aogaina e tasi le PS o lo'o fa'aosoina ai le fa'afouga i le toe fa'aaogāina ma isi mea fa'aolaola. O tagata gaosi oloa e faʻafetaui i faʻataʻitaʻiga faʻataʻitaʻiga o le tamaoaiga o le a faʻatumauina le tuputupu aʻe i le faʻatupulaia o maketi palasitika.
Taimi meli: Iuni-10-2025