{"title":"Substrates for Col Bioelectronic","description":null,"products":[{"product_id":"cfbshspuf","title":"Highly Stretchable Polyurethane (PU) Film as Substrates for Flexible Bioelectronics, 5 pcs\/pack, CFBSHSPUF","description":"\u003cp\u003eHighly stretchable polyurethane (PU) and thermoplastic polyurethane (TPU) films serve as foundational substrates and encapsulation layers in flexible bioelectronics. Their molecular structure—alternating hard segments (providing physical cross-links and mechanical strength) and soft segments (yielding high chain mobility and elasticity)—allows for Young's moduli that closely match biological tissues (10 kPa - 100 MPa), bridging the mechanical mismatch between human skin and rigid electronic components.\u003c\/p\u003e\n\u003cp\u003eThe main features of the Stretchable PU film are: (1) \u003cstrong\u003eLow Modulus \u0026amp; High Elasticity\u003c\/strong\u003e: Tunable elongation at break (\u0026gt; 500–1000%) with low mechanical hysteresis under cyclic deformation, ensuring conformal contact with curvilinear, dynamic skin surfaces without delamination. (2) \u003cstrong\u003eBiocompatibility \u0026amp; Cytotoxicity\u003c\/strong\u003e: Medical-grade aliphatic PUs and waterborne polyurethanes (WPU) avoid cytotoxic leaching (such as residual aromatic isocyanates or tin catalysts), preventing contact dermatitis during long-term epidermal wear. (3) \u003cstrong\u003eMoisture Permeability \u0026amp; Breathability\u003c\/strong\u003e: Solid dense PU films can trap sweat; electrospun fibrous PU membranes or phase-inversion micro-porous films achieve high Water Vapor Transmission Rates (WVTR\u0026gt; 2000–5000 g\/m^2\/day), suppressing skin maceration and motion-artifact noise. (4) \u003cstrong\u003eSubstrate \u0026amp; Encapsulation Barrier\u003c\/strong\u003e: High dielectric breakdown strength (\u0026gt; 20–50 kV\/mm) and chemical resistance against biofluids (sweat, interstitial fluid, saline), providing stable electrical insulation for embedded sensor traces.\u003c\/p\u003e\n\u003ctable border=\"1\" style=\"width: 100.071%; height: 206.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 24.65px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 24.65px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 24.65px;\"\u003eCFBSHSPUF (C-FB-S-HSPUF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.65px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 24.65px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 24.65px;\"\u003eModified PU \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.65px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 24.65px;\"\u003eThickness\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 24.65px;\"\u003e25 um, 50 um and 100 um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.65px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 24.65px;\"\u003e\u003cem\u003eSizes\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 24.65px;\"\u003eA4 paper size: ~210* 300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 19.6px;\"\u003e\u003cem\u003eElongation at Break\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 19.6px;\"\u003e\u0026gt;1000 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 19.6px;\"\u003e\u003cem\u003eElasticity Modulus\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 19.6px;\"\u003e10 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 58.8px;\"\u003e\u003cem\u003ePrimary Applications\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 58.8px;\"\u003eThe stretchable PU film is mainly used as flexible substrate for conductive ink printing, which can be used for electronic skin, electronic tattoo, and wearable electronics.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 24.6929%; height: 10px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8334%; height: 10px;\"\u003e5 pcs\/pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/abs\/10.1002\/adfm.202303881\"\u003eY. Hao, et al., A Stretchable, Breathable, And Self-Adhesive Electronic Skin with Multimodal Sensing Capabilities for Human-Centered Healthcare, Adv. Funct. Mater., 2023, 33, 2303881.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/pubs.acs.org\/aamick\/article-abstract\/9\/44\/38745\/705430\/Highly-Flexible-and-Sensitive-Wearable-E-Skin?redirectedFrom=fulltext\"\u003eJ. Wu. et al. Highly Flexible and Sensitive Wearable E‑Skin Based on Graphite Nanoplatelet and Polyurethane Nanocomposite Films in Mass Industry Production Available, ACS Appl. Mater. Interfaces (2017) 9 (44): 38745–38754.\u003c\/a\u003e \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"RXDZSYS","offers":[{"title":"25 um","offer_id":48241892819174,"sku":"CFBSHSPUF25","price":79.0,"currency_code":"USD","in_stock":true},{"title":"50 um","offer_id":48241892851942,"sku":"CFBSHSPUF50","price":79.0,"currency_code":"USD","in_stock":true},{"title":"100 um","offer_id":48241892884710,"sku":"CFBSHSPUF100","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CFBSHSPUF_main.jpg?v=1787684542"}],"url":"https:\/\/echemsupplies.com\/collections\/substrates-for-bioelectronic.oembed","provider":"EChem Supplies","version":"1.0","type":"link"}