Difference between revisions of "Nytril fiber"
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== Description == | == Description == | ||
| − | A manufactured fiber containing at least 85% by weight of a long chain polymer of vinylidene dinitrile (-CH2-C(CN)2-) and having the vinylidene dinitrile group in no less than every other unit in the polymer chain (Federal Trade Commission definition). Nytril fibers were first sold commercially in 1955 under the brand name of Darlan. This name was soon changed to Darvan, but its production in the U.S. stopped in the early 1960s. Nytril made a soft, resilient fabric that did not shrink and was wrinkle resistant. It was used for sweaters and pile fabrics. Nytril was also used in wool blends to improve dimensional stability in coats and suits. The fibers, however, were difficult to dye and never became popular. | + | A manufactured fiber containing at least 85% by weight of a long chain polymer of vinylidene dinitrile (-CH2-C(CN)2-) and having the vinylidene dinitrile group in no less than every other unit in the polymer chain (Federal Trade Commission definition). The comonomer used in the Nytril synthesis is vinyl acetate. Nytril fibers were first sold commercially in 1955 under the brand name of Darlan. This name was soon changed to Darvan, but its production in the U.S. stopped in the early 1960s. Nytril made a soft, resilient fabric that did not shrink and was wrinkle resistant. It was used for sweaters and pile fabrics. Nytril was also used in wool blends to improve dimensional stability in coats and suits. The fibers, however, were difficult to dye and never became popular. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | nytril fibre; nitrile fiber; | + | nytril fibre; nitrile fiber; Darvan®; Darlan; Travis |
| − | == | + | == Physical and Chemical Properties == |
| − | Resistant to dilute acids and alkalis and to most organic solvents. Resistant to sunlight, oxidation and insects. Fiber =opaque, white. Cross section = flattened or hook-shaped. Tenacity = 2.0 g/denier (dry); 1.7 (wet); Elongation = 30% (dry or wet); Moisture regain = 2-3% | + | * Resistant to dilute acids and alkalis and to most organic solvents. |
| + | * Resistant to sunlight, oxidation and insects. | ||
| + | * Fiber =opaque, white. | ||
| + | * Cross section = flattened or hook-shaped. | ||
| + | * Tenacity = 2.0 g/denier (dry); 1.7 (wet); | ||
| + | * Elongation = 30% (dry or wet); | ||
| + | * Moisture regain = 2-3%; | ||
| + | * Melting Point = 170 C (softens); | ||
| + | * Density = 1.18 gm/cc | ||
| − | + | == Comparisons == | |
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| − | + | [[media:download_file_74.pdf|Properties of Synthetic Fibers]] | |
| − | + | == Resources and Citations == | |
| − | = | + | * The Textile School: [https://www.textileschool.com/121/acrylic-fibres-manmade-artificial-fibres/#:~:text=%20Manmade%20artificial%20fibers%20%201%20ACRYLIC.%20Acrylic,least%2085%25%20vinylidene%20dinitrile%20units%2C%20which...%20More%20 website] |
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| + | * G.Cook, ''Handbook of Textile Fibres:II. Man-made Fibres'', 5th edition, Merrow Publishing Co., Durham, England, 1984, p.523. | ||
| − | [[ | + | [[Category:Materials database]] |
Latest revision as of 07:36, 4 August 2022
Description
A manufactured fiber containing at least 85% by weight of a long chain polymer of vinylidene dinitrile (-CH2-C(CN)2-) and having the vinylidene dinitrile group in no less than every other unit in the polymer chain (Federal Trade Commission definition). The comonomer used in the Nytril synthesis is vinyl acetate. Nytril fibers were first sold commercially in 1955 under the brand name of Darlan. This name was soon changed to Darvan, but its production in the U.S. stopped in the early 1960s. Nytril made a soft, resilient fabric that did not shrink and was wrinkle resistant. It was used for sweaters and pile fabrics. Nytril was also used in wool blends to improve dimensional stability in coats and suits. The fibers, however, were difficult to dye and never became popular.
Synonyms and Related Terms
nytril fibre; nitrile fiber; Darvan®; Darlan; Travis
Physical and Chemical Properties
- Resistant to dilute acids and alkalis and to most organic solvents.
- Resistant to sunlight, oxidation and insects.
- Fiber =opaque, white.
- Cross section = flattened or hook-shaped.
- Tenacity = 2.0 g/denier (dry); 1.7 (wet);
- Elongation = 30% (dry or wet);
- Moisture regain = 2-3%;
- Melting Point = 170 C (softens);
- Density = 1.18 gm/cc
Comparisons
Properties of Synthetic Fibers
Resources and Citations
- The Textile School: website
- G.Cook, Handbook of Textile Fibres:II. Man-made Fibres, 5th edition, Merrow Publishing Co., Durham, England, 1984, p.523.