Introduction:
1. Sorona is DuPont's brand of triexta (polytrimethylene terephthalate).
2. It was named and commercialized in 2000.
3. Sorona is a co-polymer of 1,3-propanediol (obtained by fermentation) and petroleum-derived terephthalic acid (TPA) or dimethyl terephthalate (DMT).
A unique molecular structure:
When stress is exerted on the molecule, strain deformation occurs first in its crystalline, lower modulus regions.
As stress is released, the crystalline structure locks in, allowing a complete recovery to the initial shape.
In conjunction with this distinctive characteristic, fibers made with Sorona® offer additional advantages over both polyester (PET) and nylon.
it has a softer feel and supports easier, more versatile dyeability with excellent washfastness and UV resistance.
Key technical features and benefits:
1. Softness (a micro-denier feel at greater than one denier).
The stress-strain tests demonstrate that flat yarns made with Sorona® fibers are softer than either polyester or nylon, at the same denier, because less effort is required to bend Sorona® fibers.
2. Stretch with recovery (2-3x greater than nylon).
Research shows that fully drawn flat yarn made with Sorona® recovers 100% from approximately 120% strain. Even at higher strain levels, fibers made with Sorona® recover completely, returning to their initial form.
3. Easy dyeability at the boiling point with no carriers.
Sorona® can be dyed at a lower temperature than polyester, without requiring pressure or chemical carriers.
4. Resiliency similar to nylon.
The crystalline structure of the Sorona® polymer molecule enables the fiber to retain its original memory and bulk, ensuring that the fabric wears exceptionally well.
5. Heatsetability.
Fabrics made with Sorona® are heatset at lower temperatures than polyester, providing manufacturers with a new option for blending Sorona® fibers with spandex to create garments with high-power stretch capabilities.
Uses: Sorona® biopolymer is used in residential and commercial carpets, apparel and automotive mats and carpets.
Download Full Pdf Article via Dupont
What’s Next:
DuPont™ Sorona® polymer is made from two monomers or ingredients, one of which is 1,3 propanediol or PDO. DuPont
pioneered a way to produce the 1,3 Propanediol from renewable resources, namely corn sugar.
The advantages of transitioning to a renewable resource based process for the production of PDO are many and include a smaller environmental footprint, lower manufacturing costs, less energy used, less capital and a more reliable supply of feedstocks.
References:
https://www.google.co.in/url sa=t&source=web&rct=j&url=http://www.dupont.co.in/products-and-services/fabrics-fibers-nonwovens/fibers.html&ved=0ahUKEwiYtLqt4-HRAhVGpo8KHWZAAJAQFggbMAA&usg=AFQjCNFUrtvvb_X1tcu1PB9t9DNyx9pvzg&sig2=1Zl2f-ArKCJE9lcwfrOQ8g
https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://www.dupont.com/products-and-services/fabrics-fibers-nonwovens/fibers/brands/dupont-sorona.html&ved=0ahUKEwiYtLqt4-HRAhVGpo8KHWZAAJAQFggtMAI&usg=AFQjCNGfiZxEJrlkJ4SikzEBSZz6l-ZK1Q&sig2=lnu3sb_nEaIjobnIvZoN6g
No comments:
Post a Comment