{"id":11751,"date":"2026-03-23T11:33:06","date_gmt":"2026-03-23T10:33:06","guid":{"rendered":"https:\/\/hybster.com\/matiere-plastique\/ps-polystyrene-gpps\/"},"modified":"2026-04-02T22:43:42","modified_gmt":"2026-04-02T20:43:42","slug":"ps-polystyrene-gpps","status":"publish","type":"matiere-plastique","link":"https:\/\/hybster.com\/en\/matiere-plastique\/ps-polystyrene-gpps\/","title":{"rendered":"PS &#8211; (Polystyr\u00e8ne) (GPPS)"},"content":{"rendered":"","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false},"famille-de-matiere":[],"class_list":["post-11751","matiere-plastique","type-matiere-plastique","status-publish","hentry"],"acf":{"nom_commercial":"","sigle":"GPPS","matiere_famille_brut":"PS (GPPS)","renforce":"","filler_reinforcement_raw":"","process_compatibles":"injection","normes_certifications":"UL94 HB, RoHS, FDA","ul94":"HB","tg":88,"tm":285,"hdt":260,"temp_usage_min":-50,"temp_usage_max":200,"temp_transfo_min":310,"temp_transfo_max":360,"retrait_min":0.5,"retrait_max":1.5,"density_g_cm3":"1.04 (ASTM D1505); 1.03 to 1.06 (ASTM D792); 1.04 to 1.05 (ISO 1183)","charpy_notched_iso179_kj_m2":"1.2 to 10","durometer_shore_a":"","durometer_shore_d":"","flexural_modulus_mpa":"2950 to 3540 (ASTM D790); 1540 to 3510 (ISO 178)","flexural_strength_mpa":"210","tensile_modulus_mpa":"2820 to 3300 (ASTM D638); 2560 to 3330 (ISO 527-1)","tensile_strength_mpa":"20.5 to 53.1 (ASTM D638); 24.8 to 55.2 (ASTM D638, Break); 36.2 to 55.0 (ASTM D638, Yield); 22.5 to 36.8 (ISO 527-1, -2); 18.0 to 55.9 (ISO 527-1, -2, Yield); 20.0 to 55.0 (ISO 527-1, -2, Break)","tensile_elongation_pct":"0.50 to 4.0 (ASTM D638, Break); 2.0 to 11 (ASTM D638, Yield); 1.3 to 2.3 (ISO 527-1, -2, Yield); 1.0 to 4.6 (ISO 527-1, -2, Break); 1.5 to 16 (ISO 527-1, -2, Break)","mecanique_note":5,"thermique_note":5,"chimique_note":5,"uv_note":2,"difficulte_injection":5,"recyclabilite_score":2,"mecanique_score":92,"thermique_score":92,"chimique_score":92,"uv_score":30,"process_score":40,"esthetique_score":40,"durabilite_score":95,"cout_score":20,"transparent":false,"contact_alimentaire":false,"recycle":false,"biosource":false,"ignifuge":false,"uv_resistant":false,"recycle_code":"7 (PPS)","features":"","commentaire_chimie":"Le PPS pr\u00e9sente une des meilleures r\u00e9sistances chimiques parmi les thermoplastiques techniques. R\u00e9siste aux acides, bases, solvants organiques et chlorures. L\u00e9g\u00e8rement sensible aux oxydants forts \u00e0 haute T\u00b0. Excellent en milieu humide.","applications_recommandees":"- Emballage\n- Feuille \/ plaque\n- Usage g\u00e9n\u00e9ral\n- Isolation\n- Biens domestiques\n- Applications \u00e9lectriques\/\u00e9lectroniques\n- Composants d\u2019\u00e9lectrom\u00e9nager\n- Jouets\n- Contenants\n- Mousse","uses":"","faq_recyclage":"Le PPS est difficile \u00e0 recycler en raison de sa haute T\u00b0 de transformation et sa structure aromatique. Des programmes industriels de r\u00e9cup\u00e9ration existent chez les fabricants. Non adapt\u00e9 au recyclage grand public.","faq_injection":"Injection entre 310\u2013360 \u00b0C, moule \u00e0 120\u2013160 \u00b0C. Pr\u00e9-s\u00e9chage : 4\u20136 h \u00e0 150 \u00b0C. Mat\u00e9riau abrasif \u2192 usure des outils et moules. Bonne fluidit\u00e9. Retrait anisotrope (0,5\u20131,5 %) selon orientation des fibres.","faq_alimentaire":"Le PPS n'est g\u00e9n\u00e9ralement pas certifi\u00e9 contact alimentaire. 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