1. Nhanganyaya
Polystyrene (PS) inochinja-chinja uye inodhura-inoshanda thermoplastic polymer inoshandiswa zvakanyanya mukurongedza, zvinhu zvevatengi, uye kuvaka. Inowanikwa mumhando mbiri dzekutanga — General Purpose Polystyrene (GPPS, crystal clear) uye High Impact Polystyrene (HIPS, yakaomeswa nerabha) — PS inokosheswa nekuoma kwayo, nyore kugadzirisa, uye kukwanisa kutenga. Ichi chinyorwa chinoongorora zvivakwa zvePS plastiki, makiyi ekushandisa, nzira dzekugadzirisa, uye maonero emusika.
2. Zvinhu zvePolystyrene (PS)
PS inopa maitiro akasiyana zvichienderana nerudzi rwayo:
A. General Chinangwa Polystyrene (GPPS)
- Optical Clarity - Yakajeka, segirazi-kutaridzika.
- Kuomarara & Brittleness - Zvakaoma asi zviri nyore kupaza pasi pekushushikana.
- Kureruka – Kudzikira pasi (~ 1.04–1.06 g/cm³).
- Magetsi Insulation - Inoshandiswa mumagetsi uye zvinhu zvinoraswa.
- Chemical Resistance - Inopikisa mvura, asidhi, uye alkalis asi inonyungudika mune zvinonyungudutsa senge acetone.
B. High Impact Polystyrene (HIPS)
- Yakavandudzwa Kusimba - Iine 5-10% polybutadiene rabha yekukanganisa kuramba.
- Kuonekwa kweOpaque - Kusina kujeka pane GPPS.
- Zviri nyore Thermoforming - Yakanakira kurongedza chikafu uye midziyo inoraswa.
3. Zvikumbiro zvakakosha zvePS Plastic
A. Packaging Indasitiri
- Zvokudya (Makapu anoraswa, mashells, cutlery)
- CD & DVD Cases
- Dziviriro Foam (EPS - Yakawedzerwa Polystyrene) - Inoshandiswa mukurongedza nzungu uye kuvharisa.
B. Consumer Goods
- Matoyi & Zvinyorwa (LEGO-sezvidhinha, peni casings)
- Cosmetic Containers (Compact kesi, lipstick tubes)
C. Electronics & Appliances
- Firiji Liners
- Transparent Display Cover (GPPS)
D. Kuvaka & Insulation
- EPS Foam Boards (Kuvaka insulation, lightweight kongiri)
- Decorative Moldings
4. Kugadzirisa Nzira dzePS Plastic
PS inogona kugadzirwa uchishandisa akati wandei matekiniki:
- Jekiseni Molding (Yakajairika kune dzakaomarara zvigadzirwa senge cutlery)
- Extrusion (Yemashizha, mafirimu, uye profiles)
- Thermoforming (Inoshandiswa mukurongedza chikafu)
- Foam Molding (EPS) - Yakawedzerwa PS yekuvharisa uye cushioning.
5. Market Trends & Zvinetso (2025 Outlook)
A. Sustainability & Regulatory Pressures
- Kurambidza Kushandisa Kamwechete PS - Nyika zhinji dzinorambidza zvinoraswa zvePS (semuenzaniso, EU's Single-Use Plastics Directive).
- Yakadzokororwa & Bio-Yakavakirwa PS - Kukura kudiwa kweeco-hushamwari dzimwe nzira.
B. Makwikwi kubva kune Alternative Plastics
- Polypropylene (PP) - Yakawanda isingadziviriri uye inogara kwenguva refu yekurongedza chikafu.
- PET & PLA - Inoshandiswa mukugadzirisazve / biodegradable packaging.
C. Regional Market Dynamics
- Asia-Pacific (China, India) inotonga PS kugadzirwa uye kushandiswa.
- North America & Europe inotarisa pakudzokorodza uye EPS insulation.
- Middle East inodyara mukugadzirwa kwePS nekuda kwemitengo yakaderera yekudyisa.
6. Mhedziso
Polystyrene inoramba iri purasitiki yakakosha mukurongedza uye zvinhu zvevatengi nekuda kwemutengo wayo wakaderera uye nyore kugadzirisa. Nekudaro, zvinonetsa kwezvakatipoteredza uye kurambidzwa kwekushandisa-kamwe PS kuri kutyaira hunyanzvi mukudzokorodza uye bio-based dzimwe nzira. Vagadziri vanochinjira kumhando dzehupfumi dzakatenderedza vanosimudzira kukura mumusika wepurasitiki uri kubuda.
Nguva yekutumira: Jun-10-2025