{"id":5309,"date":"2022-06-18T13:39:18","date_gmt":"2022-06-18T13:39:18","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5309"},"modified":"2026-04-28T11:19:23","modified_gmt":"2026-04-28T11:19:23","slug":"what-is-the-role-of-plasticizers-what-is-the-mechanism-of-action","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/what-is-the-role-of-plasticizers-what-is-the-mechanism-of-action\/","title":{"rendered":"Qual \u00e8 il ruolo dei plastificanti? Qual \u00e8 il meccanismo d'azione?"},"content":{"rendered":"<h1><strong>Qual \u00e8 il ruolo dei plastificanti? Qual \u00e8 il meccanismo d'azione?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Risposta rapida:<\/strong> For plasticizer topics, buyers usually compare flexibility, migration behavior, processing fit, and compliance together because end-use requirements can vary sharply between food contact, flexible plastics, and general industrial products.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>Agli occhi dell'industria chimica, gli additivi hanno sempre un ruolo di supporto. Ma gli ingegneri e i tecnici pi\u00f9 esperti sanno che senza un buon additivo \u00e8 difficile migliorare la qualit\u00e0 del materiale. Nella produzione di materie plastiche, i plastificanti, in quanto additivi comuni, svolgono un ruolo importante. lONGCHANG CHEMICAL fornisce un'introduzione dettagliata al ruolo dei plastificanti.<\/p>\n<p>&nbsp;<\/p>\n<p>I plastificanti sono sostanze poco volatili aggiunte alle materie plastiche per migliorarne la plasticit\u00e0 e aumentarne la flessibilit\u00e0.<\/p>\n<p>Il ruolo principale dei plastificanti \u00e8 quello di indebolire le forze intermolecolari del polimero, ridurre la temperatura di fusione e la viscosit\u00e0 della massa fusa, migliorarne le propriet\u00e0 di stampaggio e lavorazione, nell'utilizzo di un intervallo di temperature, conferendo ai prodotti plastici flessibilit\u00e0 e una serie di altre propriet\u00e0 necessarie.<\/p>\n<p>L'effetto plastificante \u00e8 causato dall'indebolimento dell'aggregazione tra le catene macromolecolari nel materiale polimerico. L'inserimento di molecole plastificanti tra le catene molecolari del polimero indebolisce le forze tra le catene molecolari del polimero e di conseguenza aumenta la mobilit\u00e0 delle catene molecolari del polimero e riduce la cristallinit\u00e0 delle catene molecolari del polimero, aumentando cos\u00ec la plasticit\u00e0 del polimero. In particolare, le molecole di plastificante inserite tra le molecole di polimero, indeboliscono le forze intermolecolari, ottenendo cos\u00ec la plastificazione.<\/p>\n<p>I plastificanti sono solitamente liquidi ad alto punto di ebollizione e bassa volatilit\u00e0, o solidi a basso punto di fusione; la maggior parte delle loro molecole ha parti polari e non polari.<\/p>\n<p>La parte polare \u00e8 spesso composta da gruppi polari, mentre la parte non polare \u00e8 costituita da alchili con una certa lunghezza e volume. I gruppi polari sono principalmente gruppi estere, atomi di cloro e gruppi epossidici.<\/p>\n<p>I composti contenenti diversi gruppi polari hanno caratteristiche diverse, come ad esempio gli esteri di ftalato hanno una buona compatibilit\u00e0, effetto plastificante e prestazioni complete; gli esteri di fosfato e i cloruri hanno una buona resistenza alla fiamma; gli epossidi e gli esteri di dipentaeritritolo hanno una buona resistenza al calore; gli esteri di acidi dibasici alifatici hanno un'eccellente resistenza al freddo; gli esteri di fenil alchil solfonato hanno una buona resistenza agli agenti atmosferici; gli esteri di citrato e acetil citrato hanno propriet\u00e0 antibatteriche, ecc.<\/p>\n<p>Il peso molecolare dei plastificanti influisce principalmente sulla durata, sull'efficienza di plastificazione e sulla compatibilit\u00e0. Per ottenere una buona durata, il peso molecolare dei plastificanti deve essere superiore a 350, mentre il peso molecolare dei plastificanti di poliestere e di esteri poliacidi di benzene (come il trimellitato) deve essere superiore a 1000. I plastificanti hanno un'ottima durata e sono utilizzati soprattutto per fili e cavi, prodotti decorativi per interni di autoveicoli e alcuni cosiddetti prodotti plastificati permanenti.<\/p>\n<p>La plastica con il plastificante ideale dovrebbe avere: buona compatibilit\u00e0 con la resina, elevata efficienza di plastificazione, durata, resistenza al freddo, stabilit\u00e0, isolamento; non tossicit\u00e0; eccellente lavorabilit\u00e0, ritardante di fiamma, poco costoso e facile da ottenere.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How buyers usually evaluate plasticizers and flexibility modifiers<\/h2>\n<p>Plasticizer sourcing usually goes more smoothly when the end-use exposure, migration limit, and processing route are reviewed before price negotiations. That usually gives a clearer answer on whether a phthalate, terephthalate, or citrate route is commercially strongest.<\/p>\n<ul>\n<li><strong>Start from the end-use requirement:<\/strong> food contact, toys, medical, and general industrial plastics need different screening priorities.<\/li>\n<li><strong>Review migration and permanence:<\/strong> flexibility alone is not enough if the application is sensitive to extraction, volatility, or long-term loss.<\/li>\n<li><strong>Check process fit:<\/strong> compatibility, viscosity effect, and thermal stability often decide whether a plasticizer is easy to scale.<\/li>\n<\/ul>\n<h3>Riferimenti prodotto consigliati<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/acetyl-tributyl-citrate-cas-77-90-7\/\">CHLUMIFLEX ATBC<\/a>:<\/strong> A practical non-phthalate plasticizer reference for food-contact and compliance-sensitive discussions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/dotp-cas-6422-86-2\/\">CHLUMIFLEX DOTP<\/a>:<\/strong> A common terephthalate-plasticizer benchmark when balancing processability, migration profile, and compliance needs.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/dbp-dibutyl-phthalate-cas-84-74-2\/\">CHLUMIFLEX DBP<\/a>:<\/strong> A conventional plasticizer comparison point when historical formulation routes or substitution choices are being reviewed.<\/li>\n<\/ul>\n<h3>FAQ per acquirenti e formulatori<\/h3>\n<p><strong>Why is a lower-cost plasticizer not always the better sourcing choice?<\/strong><br \/>Because compliance, migration profile, and process stability can quickly outweigh the unit-price difference.<\/p>\n<p><strong>Should plasticizer selection be based on flexibility only?<\/strong><br \/>Usually no. The strongest choice also needs to match migration expectations, thermal behavior, and the real end-use standard.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>In the eyes of the chemical industry, additives are always a supporting role. But experienced engineers and technicians know that without good additives with, the quality of the material is<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5309","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the role of plasticizers? 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