Major Fibers & Their Properties

[...]... exceeds 85% by mass) & half times its original length &released recovers rapidly & substantially to its initial length       Elastolefin Molecular Structure Elastolefin Fiber composed of at least 95% (by mass) of macromolecules partially cross-linked, made up from ethylene & at least one other olefin & which, when stretched to one & a half its original length & released, recovers rapidly & substantially... = H & Y = Cl: Poly (acrylonitrile or chloride) IF X = Y = Cl: Poly (acrylonitrile or vinylidene chloride ) Fiber composed of linear macromolecules having in the chain at least 50% & less than 85% by mass of acrylonitrile Physical Properties: Chemistry: 35% acrylonitrile / 65% vinylidene chloride Size: 3 denier x 51mm cut length Crimp Level: 3.8 crimps/cm Moisture: 3.5% (typical) Mechanical Properties. .. Southeast University My selected topics is Chlorofiber &Elastodiene   Chlorofiber Molecular Structure Poly (Vinyl chloride) Fiber composed of linear macromolecules having in the chain more than 50% by mass of vinyl chloride or vinylidene chloride unites Properties: Long lasting antibacterial effectiveness  Not wash out An easy care product comfort & coolness Heat regulation & moisture transfer good Uses: Bedding... amide or imide linkages, at least 85% of the amide imide linkages Physical Properties: Thermal expansion: 2 -5 e-6/K Thermal conductivity: 0.05 - 0.05 W/m.K Specific heat: 1250 - 2900 J/kg.K Density: 1390 - 1440 kg/m3 Friction coefficient: 0.4 - 0.5 Water absorption: 3.5 - 6.5% Refraction index: 1.6 – 2 Mechanical Properties Young's modulus: 58000 - 82000 Mpa Tensile strength: 2800 - 3400... Dept. of Textile Engineering Southeast University My selected topics is Polyamide (Nylon) & Polyester Polyamide (Nylon) Molecular Structure Polyhexamethylene adipamide (Nylon 6,6) Polycaproamide (Nylon  Fiber composed of linear macromolecules having in the chain recurring amide linkages, at least 85% of which are joined to aliphatic cyucloaliphatic units Properties: Moisture Absorption: 4.2-4.5% Specific Gravity: 1.14... Swimwear  Cycle wear Polyester Molecular Structure             Poly(ethylene terephthalater  Fiber composed of linear macromolecules having in the chain at least 85% by mass of an ester of a diol & terephthalic acid Properties: Denier: 0.5 – 15 Tenacity : dry 3.5 - 7.0 : wet 3.5 - 7.0 Elongation at break : dry 15 - 45 : wet 15 45% Moisture Regain: 0.4 Specific Gravity: 1.36 - 1.41% Elastic Recovery... unsubstituted saturated aliphatic hydrocarbons Physical Properties: State at 20ºC: flexible Temperature-dependent form changes: insignificant from +5ºC bis +90ºC Specific weight at 20ºC: approx 0.92 Shore hardness at 20ºC: approx 90 Tear strength at 20ºC: approx 10 N/mm2 Elongation at break at 20ºC: approx 500% Water absorption: traces Chemical Properties: Resistant against: Non-oxidizing alkalis,... Fiber composed of linear macromolecules made up of saturated aliphatic hydrocarbon units in which one carbon atom in two carries a methyl side group, generally an isotactic configuration & without further substitution Properties: Uses:        Moisture Regain: < 0.1% Refractive Index: 1.49 Thermal Conductivity: 0.95Btu-in/ft hr.°F Coefficient of linear thermal expansion: 4.0x10 /°F Heat of... Molecular Structure Natural polyisoprene Fiber composed of natural or synthetic polyisoprene, or of one or more dienes polymerized with or without one or more vinyl monomers Properties: Stretched: More than 500% without breaking Stronger & more durable than rubber Lightweight, soft, smooth It comfort and fit, prevents bagging and sagging Heat-settable Dye able Resistant to deterioration by body oils,...      Acrylic Molecular Structure Polyacrylonitrile Acrylic copolymers Fiber composed of linear macromolecules having in the chain at least 85% by mass of acrylonitrile repeating units Properties: Moisture regain: 1.5-2% at 65%  Tenacity: dry state= 5 gpd wet state=4-8 gpd Breaking elongation: 15 Elastic recovery: 85% after 4% extension Thermal stability: Good Resistance to mineral . Poly (Vinyl chloride) Properties: Uses:  Long lasting antibacterial effectiveness  Not wash out.  An easy care product.  comfort & coolness  Heat regulation & moisture transfer. multimerise, forming filaments consisting of multiple copies of the keratin monomer. Physical Properties: Chemical Properties: Uses:  Tenacity: Strong (linear, beta-configuration polymers)  Reflect. coefficient: 0.4 - 0.5  Water absorption: 3.5 - 6.5%  Refraction index: 1.6 – 2 Mechanical Properties  Young's modulus: 58000 - 82000 Mpa  Tensile strength: 2800 - 3400 Mpa  Elongation: 3.3