{"id":1139,"date":"2025-10-29T08:38:00","date_gmt":"2025-10-29T05:08:00","guid":{"rendered":"https:\/\/myepanel.ir\/apit\/?post_type=product&#038;p=1139"},"modified":"2025-12-06T14:19:02","modified_gmt":"2025-12-06T10:49:02","slug":"polycarbonate-pc","status":"publish","type":"product","link":"https:\/\/apitpetro.com\/en\/product\/polycarbonate-pc\/","title":{"rendered":"Polycarbonate (PC)"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong>What is Polycarbonate?<\/strong><\/p>\n<p style=\"text-align: justify;\">Polycarbonate is a family of engineering thermoplastics produced by polymerizing bisphenol A (BPA) derivatives or via transesterification processes. The material is amorphous (no true melting point) and has a high glass transition temperature, giving it good performance at elevated service temperatures. Polycarbonate can be formulated and compounded with UV stabilizers, flame retardants, colorants and other additives to meet diverse end-use requirements.<\/p>\n<p style=\"text-align: justify;\">Typical key physical parameters (typical ranges):<\/p>\n<ul style=\"text-align: justify;\">\n<li>Density: ~1.20\u20131.22 g\/cm\u00b3<\/li>\n<li>Glass transition (Tg): \u2248 145\u2013150 \u00b0C<\/li>\n<li>Light transmission (clear grades): up to ~88\u201390% (near glass-like clarity)<\/li>\n<li>Refractive index: \u2248 1.58 (depends on formulation)<\/li>\n<li>Impact strength: very high (notched Izod and Charpy values far exceed common commodity plastics)<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Main Commercial Production Routes<\/strong><\/p>\n<ol style=\"text-align: justify;\">\n<li>Interfacial polycondensation (phosgene route): Reaction of Bisphenol A (BPA) with phosgene in a two-phase system \u2014 the traditional commercial route that yields high-performance grade resins.<\/li>\n<li>Transesterification (melt polycondensation): BPA + diphenyl carbonate (DPC) under melt conditions \u2014 a phosgene-free route increasingly used for environmental and regulatory reasons.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">Both routes produce engineering-grade PC resin; downstream compounding and stabilization define the final grade.<\/p>\n<p style=\"text-align: justify;\"><strong>Common PC Grades &amp; Trade Names<\/strong><\/p>\n<p style=\"text-align: justify;\">\n<p style=\"text-align: justify;\">Polycarbonate is supplied as homopolymer resin, blends and engineered compounds. Well-known commercial trade names include:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Makrolon\u00ae \u2014 Covestro (global)<\/li>\n<li>LEXAN\u00ae \u2014 SABIC (global)<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Other suppliers and compounders offer speciality PC grades (UV-stabilized, flame-retardant, optical, medical, high-flow) and regional brands. When specifying a grade, request MFR (melt flow rate), color\/clarity, impact grade, and any regulatory approvals (food or medical).<\/p>\n<p style=\"text-align: justify;\"><strong>Typical Applications<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Optical &amp; glazing: Transparent safety glazing, machine guards, and spectacle lenses.<\/li>\n<li>Electronics &amp; electrical: Housings, connector components and insulating parts due to good dielectric properties.<\/li>\n<li>Automotive: Headlamp lenses, interior trim and under-the-hood components where heat resistance and toughness are required.<\/li>\n<li>Medical &amp; healthcare: Device housings, surgical instrument components and diagnostic parts (using medical-grade PC).<\/li>\n<li>Consumer goods &amp; packaging: Durable transparent containers, display cases and rigid reusable items.<\/li>\n<li>Industrial: Machine guards, optical sheets, and components for lighting (diffusers and lenses).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Key Performance Advantages<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>High impact resistance \u2014 more durable than most clear plastics.<\/li>\n<li>Excellent optical clarity \u2014 ideal for see-through parts.<\/li>\n<li>Heat resistance \u2014 functional at higher temperatures than many commodity plastics.<\/li>\n<li>Dimensional stability \u2014 tight tolerance molding and excellent surface finish.<\/li>\n<li>Good electrical insulation in many grades.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Limitations &amp; Considerations<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Chemical resistance: PC is susceptible to some solvents (aromatics, some chlorinated solvents) and may craze under stress in certain environments.<\/li>\n<li>UV stability: Untreated PC yellows under prolonged UV exposure; use UV-stabilized grades or coatings for outdoor use.<\/li>\n<li>BPA origin: Many PC resins are based on bisphenol A. For food contact or medical uses, choose certified food-grade or BPA-free alternatives and request regulatory documentation.<\/li>\n<li>Flame retardancy: Native PC is self-extinguishing to some extent, but certain applications require halogen-free flame-retardant compounds.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Processing Methods<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Injection molding \u2014 most common for complex parts and high precision.<\/li>\n<li>Extrusion \u2014 sheets, profiles and tubing.<\/li>\n<li>Thermoforming \/ vacuum forming \u2014 for larger transparent parts and signage.<\/li>\n<li>Blow molding \u2014 limited, usually for specialty applications.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Typical processing notes: dry resin thoroughly before molding (PC is hygroscopic); recommended drying and melt temperatures depend on grade \u2014 always follow supplier TDS.<\/p>\n<p style=\"text-align: justify;\"><strong>Regulatory &amp; Compliance<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Food contact: Some PC grades have approvals for food contact in jurisdictions where BPA-based materials are permitted; verify certificates (FDA, EU) per grade and intended use.<\/li>\n<li>Medical: Medical-grade PC is available with appropriate biocompatibility and sterilization compatibility data.<\/li>\n<li>RoHS \/ REACH: Confirm compliance certificates if parts are destined for regulated markets.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Recycling &amp; Sustainability<\/strong><\/p>\n<p style=\"text-align: justify;\">Polycarbonate is recyclable (often coded as \u201c7 \u2014 other\u201d). Mechanical recycling is common for industrial scrap. Chemical recycling methods (depolymerization to BPA or other monomers) are being developed and scaled in the industry \u2014 ask suppliers about PCR (post-consumer recycled) PC grades and take-back programs if circularity is required.<\/p>\n<p style=\"text-align: justify;\"><strong>Packaging, Storage &amp; Logistics<\/strong><\/p>\n<ul style=\"text-align: justify;\">\n<li>Standard packaging: 25 kg PE bags, 1,000 kg FIBCs (big bags) or bulk pneumatic deliveries for large consumers.<\/li>\n<li>Storage: Keep dry, cool, and protected from direct sunlight. Protect from contamination and humidity to preserve processability.<\/li>\n<li>Supply documentation: Request TDS, COA (batch certificate), MSDS and regulatory compliance documentation before purchase.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">\n<p style=\"text-align: justify;\"><strong>How to Specify (buyer checklist)<\/strong><\/p>\n<p style=\"text-align: justify;\">When requesting quotations include:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Intended end-use (optical, electrical, medical, glazing)<\/li>\n<li>Required MFR \/ melt flow index (g\/10 min)<\/li>\n<li>Clarity \/ color (clear, opal, tinted)<\/li>\n<li>Impact grade \/ toughness requirement<\/li>\n<li>Any additives needed (UV, flame retardant, FDA compliance)<\/li>\n<li>Packaging preference and required delivery schedule<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>Why Choose Us as Your Polycarbonate Supplier?<\/strong><\/p>\n<p style=\"text-align: justify;\">We source high-quality PC resins and compounds from reputable global producers (including grades under established trade names) and provide:<\/p>\n<ul>\n<li style=\"text-align: justify;\">Verified COA\/TDS\/MSDS per shipment<\/li>\n<li style=\"text-align: justify;\">Flexible packaging and secure export logistics<\/li>\n<li style=\"text-align: justify;\">Technical support for grade selection and molding parameters<\/li>\n<li style=\"text-align: justify;\">Assistance with regulatory documentation for food\/medical markets<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Polycarbonate (PC) is a high-performance, amorphous thermoplastic renowned for its exceptional impact resistance, optical clarity, dimensional stability and heat resistance. Because of this property set, PC is specified where a combination of strength and transparency is required \u2014 from protective glazing to precision optical parts, electrical housings and medical devices.<\/p>\n","protected":false},"featured_media":1141,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[35,37],"product_tag":[],"class_list":{"0":"post-1139","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-polymers","7":"product_cat-other-polymers","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product\/1139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/comments?post=1139"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/media\/1141"}],"wp:attachment":[{"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/media?parent=1139"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_brand?post=1139"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_cat?post=1139"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/apitpetro.com\/en\/wp-json\/wp\/v2\/product_tag?post=1139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}