{"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":"2026-05-11T18:13:14","modified_gmt":"2026-05-11T16:13:14","slug":"polystyrene-gpps","status":"publish","type":"matiere-plastique","link":"https:\/\/hybster.com\/en\/matiere-plastique\/ps-polystyrene-gpps\/","title":{"rendered":"PS \u2013 (Polystyrene) (GPPS)"},"content":{"rendered":"<!-- HXGLOSDEBUG-START\n  version=1.0.6\n  has_post=yes\n  post_type=matiere-plastique\n  post_slug=ps-polystyrene-gpps\n  is_singular=no\n  result=SKIPPED-no-singular\nHXGLOSDEBUG-END -->\n<p><!-- HXGLOS-FILTER-OK --><\/p>","protected":false},"author":15,"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_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. 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