1.Product Description
Unidirectional fabric, that is, unidirectional fabric, refers to a fabric that has a large amount of textile yarn or untwisted roving in one direction (usually warp, but also weft unidirectional fabric) and only a small and usually fine yarn in the other direction, resulting in virtually all the strength of the fabric in one direction
It is a structural reinforcement material composed of unidirectional reinforcement, used for the bending, shear, and compressive reinforcement of components, seismic reinforcement of structural systems, and reinforcement of masonry structures.
2.Common species
1. Woven unidirectional cloth:
which is generally warp unidirectional cloth, mainly used for seismic repair and reinforcement of building Bridges, such as carbon fiber unidirectional cloth of Toray Company of Japan and HEX-3R unidirectional carbon fiber cloth of HEX-3R carbon fiber Company of the United States;
2. Weftless unidirectional cloth:
that is, the general people think of unidirectional cloth, UD cloth it is actually a kind of prepreg sheet, is the use of special equipment to arrange the fibers in one direction, 0 degrees 90 degrees cross lay 2 layers or more, bonded with resin, or composite a layer of film or release paper or even fiber grid, mainly used in sports equipment, such as golf clubs, fishing rods, etc. Also used in the field of bulletproof main raw materials for aramid and ultra high molecular weight polyethylene;
3. Stitched unidirectional fabric :
It is a fabric made of polyester yarn arranged in one direction with sewing equipment imported from Germany. It is mainly used in aerospace industry and shipbuilding industry, as well as for building reinforcement and sports equipment.
3.Technical Data Sheet
| Type |
Thickness(mm) |
Weight per unit area of fabric(g/m²) |
Product width(cm) |
| CJT-200 |
0.111 |
200 |
5-100 |
| CJT-300 |
0.167 |
300 |
5-100 |
Performance Indications
Performance items |
Level I performance indicators |
Level II performance indicators |
Tensile strength value (MPa) |
≥ 3400 |
≥3000 |
Tensile modulus of elasticity (MPa) |
≥ 2.4×105 |
2.1×105 |
Elongation(%) |
≥ 1.7 |
≥ 1.7 |
4.Advantages
·Light weight, small thickness, no increase in component load,good durability, easy construction, not limited by component shape
·Easy to cross overlap, high strength, high modulus of elasticity
5.Typical Uses
Suitable for various component surfaces (beams, columns, ventilation ducts, pipes, walls);
Widely used in seismic reinforcement of buildings on highways, bridges, piers, bridge decks, tunnels, chimneys, beams, columns, and slabs.
6.Shipping information
Restrictions
This product is not classed as dangerous goods for transport and can be shipped to all destinations without restriction.
Package Size
There are no package size restrictions or surcharges for this product.
---------- FAQ ----------
1.How Much Resin Will I Need To Wet Out Carbon Cloth Fabrics?
For wet-lay lamination you will use approximately the same weight of resin as the weight of the fabric. For example, with a 200gsm cloth, for 1 square metre you will have 200g of fabric and thus will need 200g of resin to wet it out, plus a small amount of wastage for the brush and mixing pot.
2.What Does The '3k' Mean?
'3k' is the filament count or tow size. It simply means that each 'bunch' of carbon fibers that this cloth is woven from is made up of 3000 individual carbon filaments. Bigger counts (6k, 12k etc.) means chunkier 'bunches' of carbon so chunkier fabrics.
3.What Typical Thickness Would Each Layer Be?
Thickness of any reinforcement is dependent on consoldation(how much it's 'squashed down'. For this reason we generally give out thickness figures for when the reiforcement is consoldated under vacuum (1bar); this seems like the most useful figure. For example,a 90gsm carbon,a single layer, compressed under vacuum, would be about 0.1mm thick. For a 200gsm carbon a single layer would be about 0.25mm thick. This is the number you see listed under 'thickness' in the specification table.
4.How Do I Go About Ordering A Sample Of This Carbon Fabric?
You can purchase a sample of our fabrics here.
5.How Much Resin Would Be Needed On Average Per Sqm?
Well, this depends entirely on what reinforcement you're laminating, speficically how thick and heavy it is. If you're laminating 5mm of carbon fiber you'll use a lot more resin that if you're laminating just 1mm of it. Fortunately though there a really quick rule to get a good estimate-simply add up the total weight of your reinforcement and you'll probably need the same weight in resin. This means that if you're laminating 5 layers of 200g carbon(so a total of 1000g of carbon) then you'll want about 1000g(i. e.1kg) of Epoxy Resin.If it was 2 layers of 450g glass then you'd need about 900g per square metre.
6. What Is The Maximum Service Temperature As I Want To Make An Engine Rocker Cover.
The carbon fabric itself will survive many hundreds of degrees and is not the limiting factor for almost all applications. The limiting factor will be the heat distortion temperature of the resin system you plan to laminate this fabric with.
An engine rocker/cam cover may easily be exposed to hot oils at around 120°C as well as heat from the exhaust which would be dependent on the engine configuration and level of tune. As such we would recommend considering using a higher temperature resin system.
7. Does The Carbon Have A Shelf Life?
For very critical applications, such as aerospace, even dry carbon fabrics will be 'lifed' due to very gradual degradation of the sizing on the fibers, however in practice, for most applications, the degradation is minimal and most users would consider dry fabric s to not have a shelf life when stored appropriately.
8.What Colour Is Carbon fiber?
All Carbon fibers are naturally charcoal black in colour.
){kind=link}
){kind=link}