Nylon-66
NYLON 6 · Poly[imino(1,6-dioxo-1,6-hexanediyl)imino-1,6-hexanediyl] · Nylon 6/6 pellets · POLY(HEXAMETHYLENE ADIPAMIDE) · Nylon 6/6,Poly(N,N′-hexamethyleneadipinediamide, Poly(hexamethylene adipamide) · Nylon 66 powder · NYLON 6,6 POLYMERS · [-CO(CH2)4CONH(CH2)6NH-]n
Identifiers & Physical Properties
| CAS No. | 32131-17-2 |
|---|---|
| Molecular formula | C12H20N2O2 |
| Average molar mass | 224.3 g/mol |
| Monoisotopic mass | 224.15247789 g/mol |
| SMILES | [CH]CCCCCNC(=O)CCCCC([N])=O |
| InChIKey | LOCYSVHOSYQGOV-UHFFFAOYSA-N |
| PubChem CID | 36070 |
| EC No. | 608-706-6 |
Chemical & Physical Properties
| XLogP | 1.4 |
|---|---|
| Topological polar surface area | 47.2 |
| Hydrogen bond donors | 1 |
| Hydrogen bond acceptors | 2 |
| Rotatable bonds | 10 |
| Heavy atoms | 16 |
| Formal charge | 0 |
| Complexity | 205 |
| Cosmetics | Cosmetic ingredients (Nylon-66) -> CIR (Cosmetic Ingredient Review)BulkingViscosity controllingOpacifying |
| Melting point | 250-260 °C(lit.) |
| Density | 1.47 g/mL at 25 °C |
| Refractive index | n20/D 1.565 |
| Solubility | strong proton donor solvents, acetic acid and phenols: soluble |
| Physical state | pellets |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
| Cosmetics Ingredients Functions | BULKINGOPACIFYINGVISCOSITY CONTROLLING |
| Cosmetic Ingredient Review (CIR) | Nylon 6/6 (32131-17-2) |
| InChI | 1S/C12H24N2O2/c1-2-3-4-7-10-14-12(16)9-6-5-8-11(13)15/h2-10H2,1H3,(H2,13,15)(H,14,16) |
| InChIKey | QDBQXOAICGSACD-UHFFFAOYSA-N |
| SMILES | C(CC(=O)NCCCCCCNC(=O)CCCCC(=O)NCCCCCCN*)CCC(=O)NCCCCCCNC(=O)CCCCC(*)=O |$$| |
| Surface tension | 46.5mN/m at 20°C |
| Indirect Additives used in Food Contact Substances | NYLON 66 |
| FDA 21 CFR | 177.1200177.1500177.2355 |
| EPA Substance Registry System | Poly[imino(1,6-dioxo-1,6-hexanediyl)imino-1,6-hexanediyl] (32131-17-2) |
| UNSPSC Code | 12162002 |
| NACRES | NA.23 |
| Personal protective equipment (PPE) | Eyeshields, Gloves, type N95 (US) |
| Safety statements (S) | 24/25 |
| Water hazard class (WGK) | 3 |
| Autoignition temperature | 752 °F |
| TSCA inventory status | TSCA listed |
| Storage class | 11 - Combustible Solids |
Safety & Regulations
| GHS classification | This chemical does not meet GHS hazard criteria for 88.5% (177 of 200) of all reports.WarningH315 (11.5%): Causes skin irritation [Warning Skin corrosion/irritation]P264, P280, P302+P352, P321, P332+P317, and P362+P364 (click each P-code to see the statement)Aggregated GHS information provided per 200 reports by companies from 2 notifications to the ECHA C&L Inventory. |
|---|---|
| Hazard Classes and Categories | Skin Irrit. 2 (11.5%) |
| Toxicity summary | Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org |
| Personal protective equipment (PPE) | Eyeshields, Gloves, type N95 (US) |
| Water hazard class (WGK) | 3 |
| TSCA inventory status | TSCA listed |
| Safety statements (S) | 24/25 |
| Storage class | 11 - Combustible Solids |
| Autoignition temperature | 752 °F |
Applications & Uses
Description
Nylon 6,6 was first developed in 1935 by W.H. Carothers at DuPont and patented in 1938 for use as a textile fiber. It was originally given the name Fiber #66. The fibers are known to be strong, tough, and elastic. Importantly, as opposed to traditional fibers such as cotton, wool, and rayon, nylon fibers are glossy. They are extruded through a spinneret with a circular or trilobal cross section shape. Nylon 6,6 fibers can be used individually, i.e., as monofilaments, for brushes, surgical sutures, tennis strings, and fishing lines. Nylon 6,6 fibers are used for clothing, carpets, tire cords, conveyor belts, and brushes. Nylon 6,6 exhibits excellent dyeability and are twice as durable as Cotton (see Canvasetc.com). Nylon is sometimes coated with plastic, such as vinyl, to produce thin, lightweight waterproof fabrics.
Uses
Nylon 6/6 can be used as nanofibers for the fabrication of support materials for osmosis membranes. It can also be used in the formation of the nanofibrous membranes as separators in lithium-ion batteries.
General Description
Nylon 6/6 is a thermoplastic material with good mechanical properties like elastic modulus (~21 MPa) and peak stress (~6.5 MPa). It also has good thermal stability and flexibility that makes it useful in the packaging of food items.
Preparation & Synthesis
Preparation
Nylon 6/6 is synthesized by polycondensation of hexamethylenediamine and adipic acid with the removal of water.