{"id":11736,"date":"2026-03-23T11:32:58","date_gmt":"2026-03-23T10:32:58","guid":{"rendered":"https:\/\/hybster.com\/matiere-plastique\/ppa-polyphtalamide-fibres-de-verre\/"},"modified":"2026-04-02T22:43:41","modified_gmt":"2026-04-02T20:43:41","slug":"ppa-polyphtalamide-fibres-de-verre","status":"publish","type":"matiere-plastique","link":"https:\/\/hybster.com\/en\/matiere-plastique\/ppa-polyphtalamide-fibres-de-verre\/","title":{"rendered":"PPA (Polyphtalamide) &#8211; fibres de verre"},"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-11736","matiere-plastique","type-matiere-plastique","status-publish","hentry"],"acf":{"nom_commercial":"","sigle":"PPA-GF","matiere_famille_brut":"PPA","renforce":"fibres de verre","filler_reinforcement_raw":"fibres de verre","process_compatibles":"injection","normes_certifications":"UL94 HB, RoHS, FDA","ul94":"HB","tg":125,"tm":310,"hdt":300,"temp_usage_min":-40,"temp_usage_max":200,"temp_transfo_min":320,"temp_transfo_max":360,"retrait_min":0.2,"retrait_max":0.5,"density_g_cm3":"1.32 to 1.69 (ASTM D792); 1.41 to 1.66 (ISO 1183)","charpy_notched_iso179_kj_m2":"6.6 to 15","durometer_shore_a":"","durometer_shore_d":"","flexural_modulus_mpa":"5340 to 17600 (ASTM D790); 9.40 to 12600 (ISO 178)","flexural_strength_mpa":"330","tensile_modulus_mpa":"5140 to 19600 (ASTM D638); 3720 to 19200 (ISO 527-1)","tensile_strength_mpa":"82.7 to 270 (ASTM D638, Yield); 88.5 to 260 (ASTM D638); 163 to 251 (ASTM D638, Break); 147 to 253 (ISO 527-1, -2); 111 to 252 (ISO 527-1, -2, Yield); 59.7 to 287 (ISO 527-1, -2, Break)","tensile_elongation_pct":"1.7 to 3.0 (ASTM D638, Break); 1.5 to 2.6 (ASTM D638, Yield); 1.5 to 6.0 (ISO 527-1, -2, Break)","mecanique_note":5,"thermique_note":5,"chimique_note":4,"uv_note":2,"difficulte_injection":5,"recyclabilite_score":2,"mecanique_score":100,"thermique_score":100,"chimique_score":70,"uv_score":30,"process_score":25,"esthetique_score":50,"durabilite_score":90,"cout_score":20,"transparent":false,"contact_alimentaire":false,"recycle":false,"biosource":false,"ignifuge":false,"uv_resistant":false,"recycle_code":"7 (renforc\u00e9 GF)","features":"","commentaire_chimie":"Le PPA pr\u00e9sente une excellente r\u00e9sistance aux huiles moteur \u00e0 haute temp\u00e9rature, aux graisses industrielles et aux carburants. Sa faible absorption d'humidit\u00e9 garantit une stabilit\u00e9 dimensionnelle sup\u00e9rieure. Sensible aux acides forts concentr\u00e9s et bases \u00e0 chaud.","applications_recommandees":"- Applications automobiles\n- Applications industrielles\n- Biens domestiques\n- Applications \u00e9lectriques\/\u00e9lectroniques\n- Applications grand public\n- Usage g\u00e9n\u00e9ral\n- \u00c9lectrom\u00e9nager\n- Contenants\n- Pi\u00e8ces int\u00e9rieures automobiles\n- Emballage","uses":"","faq_recyclage":"Le PPA est difficile \u00e0 recycler en raison de sa structure aromatique et de ses hautes temp\u00e9ratures de transformation. Des programmes de reprise industrielle existent chez certains fabricants. Non destin\u00e9 au recyclage grand public.","faq_injection":"Les grades GF requi\u00e8rent des pressions d'injection plus \u00e9lev\u00e9es. Retrait fortement anisotrope (perpendiculaire aux fibres > dans l'axe). Usure des buses et moules accrue \u2014 aciers nitrur\u00e9s recommand\u00e9s. S\u00e9chage identique au grade de base.","faq_alimentaire":"Le PPA n'est pas adapt\u00e9 aux applications alimentaires. 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