{"id":9492,"date":"2026-01-26T03:09:05","date_gmt":"2026-01-26T03:09:05","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9492"},"modified":"2026-04-27T11:16:12","modified_gmt":"2026-04-27T11:16:12","slug":"what-you-need-to-know-about-liquid-silicone-rubber","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/it\/what-you-need-to-know-about-liquid-silicone-rubber\/","title":{"rendered":"Liquid Silicone Rubber: Properties, Processing, and Common End Uses"},"content":{"rendered":"<p>Liquid silicone rubber is typically evaluated for its balance of heat resistance, flexibility, biocompatibility, and processing efficiency in molded parts. Engineers and buyers usually review curing behavior, viscosity control, molding conditions, and regulatory suitability before adopting it for medical, electrical, or consumer-product use.<\/p>You also find it in fast and clean injection molding. More people are using it all over the world. For example, the market will grow from $2.81 billion in 2023 to $4.97 billion by 2030: People pick it because it is safe, useful, and has special features. <h2>Practical Takeaways<\/h2> <ul> <li>La gomma siliconica liquida \u00e8 sicura. Viene utilizzata nei prodotti medici e per l'infanzia. L'LSR \u00e8 forte e pu\u00f2 piegarsi senza rompersi. Pu\u00f2 sopportare temperature molto calde e molto fredde. Viene utilizzata in molti settori, come quello sanitario e automobilistico. L'LSR fa bene all'ambiente. Pu\u00f2 essere riciclato. Scegliete l'LSR per i progetti che devono essere <a href=\"https:\/\/changhongchemical.com\/tpo-free-gel-polish-vs-regular-gel-polish-safety-differences\/\" target=\"_blank\" rel=\"noopener\">sicuro e di lunga durata<\/a>.<\/li> <\/ul> <h2>Che cos'\u00e8 la gomma siliconica liquida?<\/h2> <h3>Definizione e caratteristiche dell'LSR<\/h3> Liquid silicone rubber is special for many reasons. It starts as two separate liquids. One liquid is the base. The other has a catalyst. When you mix them, they react and become solid. Platinum is used as the catalyst. This keeps the product clean and safe. Factories use machines to mix the liquids evenly. They use a 1:1 ratio. The mixture goes into a mold. Heat makes the liquid turn solid. This process is called liquid injection molding. Liquid silicone rubber has many unique features. Here are some important ones: Liquid silicone rubber is strong in tough places. It does not smell or taste. You find it in kitchen tools and baby items. It works well in medical devices. It does not cause allergies. It stops bacteria from growing. <h3>LSR vs. altri materiali<\/h3> Liquid silicone rubber is different from other silicone and rubber types. The main difference is how you make and use them. Liquid silicone rubber uses injection molding. This gives you clean and exact parts. It also makes less waste. Here is a table that shows how liquid silicone rubber compares to high consistency rubber: Liquid silicone rubber stretches more than high consistency rubber. It works better in hot and cold places. You need special machines to make it. The products are very clean and pure. High consistency rubber can be shaped in more ways. But it does not stretch as much. It may not last as long in hard conditions. Here are some things to remember about LSR and other materials: <ul> <li>L'LSR ha una rete regolare di legami incrociati. Questo gli conferisce una migliore elasticit\u00e0.<\/li> <li>L'LSR non produce sottoprodotti indesiderati durante l'indurimento. Questo lo rende pi\u00f9 sicuro.<\/li> <li>\u00c8 possibile utilizzare l'LSR per la fusione, l'estrusione o lo stampaggio a iniezione. Funziona meglio con macchine speciali.<\/li> <\/ul> La nuova tecnologia ha reso la gomma siliconica liquida ancora migliore. Ora l'LSR pu\u00f2 avere caratteristiche speciali. Alcuni esempi sono le superfici autolubrificanti, l'elevata conduttivit\u00e0 termica e le propriet\u00e0 antibatteriche. Le fabbriche utilizzano macchine avanzate per realizzare parti piccole e dettagliate. Questi sono utilizzati nell'elettronica e nei dispositivi medici. Questi cambiamenti consentono di ottenere prodotti migliori. Si ottengono anche meno rifiuti e pi\u00f9 scelte. <h2>Propriet\u00e0 e composizione della gomma siliconica liquida<\/h2> <h3>Struttura chimica e polimerizzazione<\/h3> Liquid silicone rubber has a special chemical structure. Its backbone is made of siloxane. Siloxane is a chain of silicon and oxygen atoms. This makes the material both strong and bendy. The polymer chains have vinyl groups at their ends. When you mix two parts together, these vinyl groups react with silicone oil that has hydrogen. Platinum helps this reaction happen. Here is what happens during curing: <ol> <li>I gruppi vinilici delle catene polimeriche reagiscono con i legami Si-H del reticolante.<\/li> <li>Questa reazione lega le catene tra loro.<\/li> <li>Il materiale diventa una rete solida.<\/li> <\/ol> You can see the main parts in this table: Platinum-cured liquid silicone rubber uses hydrosilylation. This makes the material stronger and better with heat. It also helps factories work faster. Platinum curing keeps molds clean and saves time. Liquid silicone rubber comes in two parts. One part has the platinum catalyst. The other part has methylhydrogensiloxane and an alcohol inhibitor. Long polysiloxane chains are mixed with treated silica. This mix makes the material tough and steady. <h3>Propriet\u00e0 fisiche fondamentali<\/h3> La gomma siliconica liquida ha molte propriet\u00e0 fisiche importanti. Queste lo rendono adatto a molti usi. <ul> <li>L'elevata purezza significa che \u00e8 sicura per l'organismo e per gli alimenti. Non ci sono sostanze chimiche nocive.<\/li> <li>Il materiale \u00e8 molto resistente e non si strappa facilmente. Alcuni tipi non necessitano di ulteriore calore dopo lo stampaggio.<\/li> <li>Per gli usi sensibili, \u00e8 necessario mantenere la volatilit\u00e0 al di sotto di 0,5%. Alcuni tipi soddisfano gi\u00e0 questa regola.<\/li> <\/ul> Ecco le principali propriet\u00e0 di una tabella: <ul> <li>La resistenza alla trazione indica la forza di trazione che pu\u00f2 sopportare prima di rompersi.<\/li> <li>L'allungamento indica fino a che punto \u00e8 possibile allungarlo prima che si spezzi. Alcuni tipi si allungano pi\u00f9 di 1.000%.<\/li> <li>La resistenza alla temperatura significa che funziona da -50\u00b0C a oltre 250\u00b0C.<\/li> <\/ul> Other things like elasticity, compression set, and tear resistance show how well it works. It cures into a strong shape that lasts a long time. Adding things like nanotubes or mineral fillers makes it even stronger and better with heat. Purity is important for special uses. High purity keeps people safe, like in medical tools and baby items. The material does not get hurt by ozone or sunlight. The strong silicone base also helps protect against hits when you add special fillers. <h2>Usi e applicazioni<\/h2> <h3>Usi industriali e medici<\/h3> La gomma siliconica liquida \u00e8 utilizzata in molti <a href=\"https:\/\/changhongchemical.com\/application-areas-and-functions-of-chemical-auxiliaries\/\" target=\"_blank\" rel=\"noopener\">grandi industrie<\/a>. I dispositivi sanitari e medici utilizzano oltre 38,3% di tutto l'LSR prodotto. Guarnizioni, guarnizioni e O-ring utilizzano oltre 35,8% del totale. Questo materiale viene scelto quando la sicurezza e la fiducia sono molto importanti. <ul> <li>Assistenza sanitaria e dispositivi medici (38.3%)<\/li> <li>Guarnizioni e O-Ring (35.8%)<\/li> <\/ul> Doctors use liquid silicone rubber for catheters, implants, and tools. It is also in valves, seals, and gaskets. These items must pass strict rules like ISO 10993 and FDA 21 CFR 177.2600. You can trust these products because they do not cause allergies. They also stop bacteria from growing. The car industry uses more LSR every year. You find it in battery seals, gaskets, and connectors. The use of LSR in cars is rising fast, especially with electric cars. <h3>Prodotti di consumo e di uso quotidiano<\/h3> Utilizzate oggetti realizzati con gomma siliconica liquida <a href=\"https:\/\/changhongchemical.com\/application-areas-and-functions-of-chemical-auxiliaries\/\" target=\"_blank\" rel=\"noopener\">ogni giorno<\/a>. Gli utensili da cucina, gli articoli per l'infanzia e i dispositivi indossabili sono spesso dotati di LSR. A casa e al lavoro si vedono pentole, strumenti medici e parti di automobili. <ul> <li>Articoli da cucina<\/li> <li>Prodotti per bambini<\/li> <li>Dispositivi indossabili<\/li> <li>Articoli da forno<\/li> <li>Dispositivi medici<\/li> <li>Componenti per autoveicoli<\/li> <\/ul> Baby items like pacifiers and bottle nipples use LSR. It lasts a long time and stays safe. Silicones that meet FDA and USP Class VI rules do not cause harm. LSR parts can last for many years if used right. They do not get ruined by acids, bases, solvents, or oils. This makes them safe for babies. Food items that touch silicone must follow FDA rules. Silicone must meet 21 CFR Part 177. This keeps food safe from bad chemicals. You can trust silicone that is approved by the FDA for food use. <h2>Vantaggi e svantaggi<\/h2> <h3>Vantaggi dell'LSR<\/h3> Liquid silicone rubber has many good points. It is safe and pure. It bends and stretches well. You can use it for medical tools, baby things, and kitchen items. It does not cause allergies or skin problems. Bacteria do not grow on it. It is safe for food and for touching the body. Liquid silicone rubber is great for making lots of parts fast. The first tools cost more, but each part costs less. Look at this table to see how it matches up with other materials: You can make strong parts that last a long time. There is not much waste. Machines do most of the work, so labor costs are low. The shapes come out clean and exact. <h3>Limiti e idee sbagliate comuni<\/h3> La gomma siliconica liquida presenta alcuni svantaggi. Ecco i principali: <ul> <li>Non \u00e8 molto forte in luoghi molto sollecitati<\/li> <li>Alcuni prodotti chimici, oli o solventi possono danneggiarlo.<\/li> <li>Pu\u00f2 indebolirsi se si scalda troppo<\/li> <li>Non si attacca bene ad altre cose<\/li> <li>Non \u00e8 il massimo per i lavori elettrici ad alta tensione<\/li> <li>Durante la preparazione possono verificarsi bolle d'aria o una polimerizzazione non uniforme.<\/li> <li>I tipi speciali possono costare molto<\/li> <\/ul> Alcuni pensano che l'LSR non sia sicuro o possa causare allergie. Ma gli studi dimostrano che non fa male alla pelle e non provoca allergie. \u00c8 pi\u00f9 sicuro del lattice di gomma naturale. Alcuni pensano che rimanga nel corpo o che provochi malattie. I test dimostrano che non rimane nel corpo e non favorisce la crescita dei batteri. La FDA afferma che \u00e8 sicuro per gli alimenti e per l'uso medico. <h2>Sicurezza e impatto ambientale<\/h2> <h3>Salute e biocompatibilit\u00e0<\/h3> Ci si potrebbe chiedere perch\u00e9 <strong>gomma siliconica liquida<\/strong> \u00e8 sicuro per le persone. Molti medici si affidano a questo materiale per gli oggetti utilizzati nel corpo per lungo tempo. Lo si pu\u00f2 trovare in impianti e cateteri. \u00c8 presente anche in altri dispositivi che rimangono all'interno dell'organismo. Ecco i motivi per cui \u00e8 sicuro: <ul> <li>Rimane invariata in luoghi caldi o freddi.<\/li> <li>\u00c8 possibile pulirlo con il calore o con le radiazioni.<\/li> <li>Non reagisce con il corpo.<\/li> <li>Non provoca allergie.<\/li> <\/ul> I medici e gli scienziati utilizzano misure accurate per verificare la sicurezza del materiale. Preparano un piano per testare il materiale. Eseguono test chimici e biologici. Scrivono un rapporto e lo inviano alla FDA. In questo modo le persone sono al sicuro. <h3>Considerazioni ambientali<\/h3> Ci si potrebbe chiedere cosa succede a <strong>gomma siliconica liquida<\/strong> after you use it. This material lasts a long time. It does not turn into microplastics. It comes from silica, which is a natural mineral. It does not put bad chemicals in the air or water. Some factories try new ways to make silicone better for the planet. They mix it with oils from plants. This uses less energy and fewer chemicals. The final product can break down into silicone oils. You can use these oils again. When you recycle silicone, you have two main choices: <ul> <li><strong>Riciclaggio meccanico<\/strong>: Le fabbriche tagliano e macinano il vecchio silicone. Lo usano per produrre nuovi prodotti. In questo modo si risparmia energia, ma la qualit\u00e0 peggiora dopo molte volte.<\/li> <li><strong>Riciclaggio chimico<\/strong>: Le fabbriche rompono il silicone in piccole parti con il calore e le sostanze chimiche. In questo modo possono realizzare nuovamente prodotti di qualit\u00e0. In questo modo si consuma pi\u00f9 energia, ma si evitano gli sprechi e l'inquinamento.<\/li> <\/ul> <div class=\"qc-divider-wrapper\"> <div class=\"qc-divider\"><\/div> <\/div> La gomma siliconica liquida \u00e8 resistente e si piega facilmente. \u00c8 sicura per molte cose. Si trova negli strumenti medici, nell'elettronica e negli articoli da cucina. Non si rovina con il calore o le sostanze chimiche. L'LSR scorre facilmente, per cui le fabbriche possono produrre velocemente piccoli pezzi. Prima di scegliere l'LSR, \u00e8 necessario esaminare il grado, il durometro e la purezza. Procuratevi sempre le schede tecniche. Assicuratevi che abbia l'approvazione FDA o USP Classe VI per uso medico o alimentare. Se non siete sicuri, chiedete aiuto ai fornitori o ai produttori. Possono aiutarvi a scegliere l'LSR giusto per il vostro progetto. <h2>FAQ<\/h2> <h3>Qual \u00e8 l'uso principale della gomma siliconica liquida?<\/h3> La gomma siliconica liquida \u00e8 presente in molti settori. La si vede nei dispositivi medici e nei prodotti per l'infanzia. \u00c8 presente anche negli utensili da cucina. Le fabbriche la scelgono perch\u00e9 \u00e8 sicura e resistente. Pu\u00f2 piegarsi senza rompersi. Si trova anche in guarnizioni e sigilli. Anche i dispositivi indossabili lo utilizzano. <h3>Cosa differenzia la gomma siliconica liquida dal silicone normale?<\/h3> La gomma siliconica liquida nasce come liquido. Dopo l'indurimento diventa solida. Il silicone normale \u00e8 solitamente un solido o un gel. L'LSR utilizza uno speciale processo di iniezione. In questo modo i pezzi sono pi\u00f9 puliti e precisi. <h3>Cosa controllare prima di scegliere l'LSR per il vostro progetto?<\/h3> Verificare innanzitutto la qualit\u00e0 e la durezza. Anche la purezza \u00e8 importante. Cercare <a href=\"https:\/\/changhongchemical.com\/what-is-an-antifoaming-agent-and-why-you-need-it%EF%BC%9F\/\" target=\"_blank\" rel=\"noopener\">Approvazione FDA o medica<\/a> se avete bisogno di sicurezza. Chiedete ai fornitori le schede tecniche. Questo vi aiuter\u00e0 a scegliere il tipo migliore. <h3>Quali sono i vantaggi in termini di sicurezza dell'utilizzo dell'LSR?<\/h3> L'LSR non causa allergie o problemi alla pelle. Blocca la crescita dei batteri. Non reagisce con il corpo. I medici lo usano per impianti e strumenti. \u00c8 possibile utilizzarlo per alimenti e articoli per l'infanzia. <h3>Cosa succede alla gomma siliconica liquida dopo averla gettata via?<\/h3> L'LSR dura a lungo. Non si trasforma in microplastica. Le fabbriche possono <a href=\"https:\/\/changhongchemical.com\/why-ama-monomer-is-the-secret-behind-stronger-plastics\/\" target=\"_blank\" rel=\"noopener\">riciclarlo mediante macinazione<\/a> o l'uso di sostanze chimiche. Non inquina l'aria e l'acqua.<h2>What engineers and buyers usually review<\/h2><ul><li>Viscosity behavior and cure profile during molding or processing.<\/li><li>Heat resistance, compression set, flexibility, and long-term stability.<\/li><li>Regulatory suitability for medical, electrical, or consumer-product use.<\/li><li>Supplier consistency, packaging, and production-support capability.<\/li><\/ul>\n\n\n<p><strong>Related product references:<\/strong> For formulation review or sourcing comparison, see <a href=\"https:\/\/changhongchemical.com\/product\/lcsorb-360-cas-103597-45-1\/\">CHLUMIUV 360<\/a> e <a href=\"https:\/\/changhongchemical.com\/product\/lcsorb-uv-1577-cas-147315-50-2\/\">CHLUMIUV UV-1577<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Liquid silicone rubber is typically evaluated for its balance of heat resistance, flexibility, biocompatibility, and processing efficiency in molded parts. Engineers and buyers usually review curing behavior, viscosity control, molding conditions, and&#8230;<\/p>","protected":false},"author":1,"featured_media":9495,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-9492","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Liquid Silicone Rubber: Properties, Processing, and Common End Uses | Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Liquid silicone rubber is typically evaluated for its balance of heat resistance, flexibility, biocompatibility, and processing efficiency in molded...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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