{"id":8587,"date":"2025-05-14T06:21:32","date_gmt":"2025-05-14T06:21:32","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=8587"},"modified":"2026-04-27T11:15:58","modified_gmt":"2026-04-27T11:15:58","slug":"mechanism-of-action-and-application-areas-of-toughening-agents","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/it\/mechanism-of-action-and-application-areas-of-toughening-agents\/","title":{"rendered":"Meccanismo d'azione e campi di applicazione degli agenti indurenti"},"content":{"rendered":"Mechanism of action of toughening agents\r\n1.Elastomer toughening mechanism.\r\nSilver grain-shear band theory:\r\nElastomer particles (0.1-1\u03bcm) act as stress concentration points to induce silvering\r\nSimultaneously promotes shear yielding of the matrix (energy absorption 5-10 times higher than silver grain).\r\nTypical system: HIPS (polystyrene\/butadiene rubber)\r\nCavitation mechanism:\r\nFormation of micro cavities (50-200 nm) in the rubber phase under stress.\r\nInduces plastic deformation of the substrate (e.g. PP\/EPDM systems).\r\nVolume expansion by cavitation up to 300% of the original volume\r\n\r\n2. Rigid particle toughening\r\nNano CaCO\u2083 toughening:\r\nParticle size &lt;100nm, notched impact strength increase 3-5 times\r\nOptimal additive amount 5-15wt% (surface needs silane coupling agent treatment)\r\nCore-shell structure particles:\r\nPMMA-g-PB (acrylate shell\/butadiene core)\r\nPVC notched impact strength up to 80kJ\/m\u00b2.\r\n\r\n3. Multiple mechanism synergy\r\nPOE-g-MAH toughens PA6:\r\nAt 0.8-1.2% maleic anhydride grafting ratio\r\nImpact strength increased from 6kJ\/m\u00b2 to 45kJ\/m\u00b2.\r\nWhile maintaining tensile strength &gt;50MPa\r\n\r\nKey Application Areas\r\n\r\n1.Engineering plastics modification\r\nCar bumper (PP modification):\r\nFormulation: PP 70% + POE 15% + Talc 15%.\r\nPerformance: Notched impact &gt;45kJ\/m\u00b2 (-30\u00b0C)\r\nElectrical and electronic housings (PC\/ABS):\r\nMBS 8-12% added\r\nFalling ball impact test: 1kg steel ball 1m height without rupture\r\n\r\n2.Special materials\r\nSuper tough nylon (PA66):\r\nEPDM-g-MAH 10-15%\r\nCantilever beam impact &gt;90kJ\/m\u00b2\r\nFor rail components\r\nTransparent toughened PMMA:\r\nCore-shell ACR 5-8%\r\nLight transmission &gt;92%, 3 times higher impact strength\r\n\r\n3.Composite Materials\r\nCarbon fibre reinforced epoxy resin:\r\nCTBN modified (10phr)\r\nG\u2081C upgraded from 200J\/m\u00b2 to 800J\/m\u00b2\r\nWood-plastic composites:\r\nEVA toughening agent 3-5%\r\nFlexural modulus retention &gt;85\r\n<h2><strong><b>Contattateci ora!<\/b><\/strong><\/h2>\r\n<h4><strong><b>Se avete bisogno di Price, inserite i vostri dati di contatto nel modulo sottostante; di solito vi contatteremo entro 24 ore. Potete anche inviarmi un'e-mail\u00a0<span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@changhongchemical.com\">info@changhongchemical.com<\/a><\/span>\u00a0durante l'orario di lavoro (dalle 8:30 alle 18:00 UTC+8 lun.-sab.) o utilizzare la live chat del sito web per ottenere una risposta immediata.<\/b><\/strong><\/h4>\n\n\n<p><strong>Related product references:<\/strong> For formulation review or sourcing comparison, see <a href=\"https:\/\/changhongchemical.com\/product\/chlumiao-1010-cas-6683-19-8\/\">CHLUMIAO 1010<\/a> e <a href=\"https:\/\/changhongchemical.com\/product\/lcsorb-360-cas-103597-45-1\/\">CHLUMIUV 360<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Mechanism of action of toughening agents 1.Elastomer toughening mechanism. Silver grain-shear band theory: Elastomer particles (0.1-1\u03bcm) act as stress concentration points to induce silvering Simultaneously promotes shear yielding of the matrix (energy absorption 5-10&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-8587","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mechanism of action and application areas of toughening agents - Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Mechanism of action of toughening agents 1.Elastomer toughening mechanism. 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