Activated Carbon Fiber and Its Innovative Uses

While using activated carbon in forms such as granules, pellets and powders has been popular for several years, these products are sometimes difficult to handle. On the other hand, the use of activated carbon fiber or ACF provides ease of use and unmatched performance even in the most heavy duty applications. In this particular type of form, the adsorbent (in granule or powder form) is laminated to a melt blown or spun bonded material. The end result is a light-weight, porous sheet that offers versatility in hundreds of applications.

These fiber sheets can be used in filters and masks. They can also be pleated for added performance. Today, manufacturers can also offer ACFs that are bonded using heat or have been needle punched to achieve the desired results. In many cases, you shall find that the ACF is made from a rayon or resin precursor.

In this article, we shall now discuss some of the most prominent advantages of ACFs:

    They are highly micro porous, which makes them suitable for use with air or water-based applications.

    Since these sheets are 100% activated and they offer an exceedingly large surface area, you can use them to carry out even the most complex adsorption applications.

    Just like any other type of fiber or cloth, the thickness, width and length of the ACF can be adjusted to suit specific requirements.

    It can be used for adsorption of both organic and inorganic gases. The best part is, adsorption takes place at a more rapid rate than regular granular activated carbon.

    It can also be used in acidic applications, as well as with alkaline materials as it is resistant to both.

    A number of applications in the chemical and electrical sector make use of them because they offer chemical stability and satisfactory electrical conductivity.

All these qualities have played a pivotal role in making the activated charcoal fiber an indispensable industrial material. In fact, a number of environmentalists have lauded this material for its use in environmental pollution control measures. The aerospace industry is also known to make use of these materials for metal reinforcing purposes. Moreover, the water treatment industry has successfully used this material for filtration purposes. Did you know that ACF can even adsorb bacteria such as Escherichia coli?.

And in its most basic form, this material can be used for deodorizing purposes, both in industrial and commercial sectors. Today, several industries have been applying this material for recovering solvents, purifying air, various applications in the medical sector, and even for carrying catalysts in the chemical industry. Considering all these varied advantages and applications, it is easy to understand why activated carbon fiber is in high demand across various industry verticals.

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Why not use Fibre Glass for your next repair?

Using fibre glass is often overlooked, more often than not as a repair solution, because one associates it with only car body repairing or boat repairs. Well this is not quite correct, as there are literally hundreds of other applications in and around the home where you can use fibre glass. For instance you can fill holes virtually anywhere, in timber, brick or even concrete. You are able to repair your water tanks, water pipes, the guttering, even your furniture.

Ordinary resin or polyester-based filler paste can be used for repairing small holes and dents in metal and wood. To extend your repair kit even further, I suggest you include the conventional Fibre Glass materials, being resin and Chopped Strand Mat (CSM). This will allow you to repair anything from roofs to rusty storage tanks that can be patched. Make a Fibre Glass bandage to add strength to gutter or down-pipe joints, or if you have a burst water-pipe, a similar application for a successful interim repair.

Although there are many types of Fibre Glass products, for instance woven cloths (more strength less flexible) fibre tissue where appearance is of importance and not strength. To give a better finish fibre tissue is often used on top of the CSM material. You will find most repair kits that are available supply CSM, this product is actually a mat of randomly laid fibres which are loosely held together by an emulsion, of which dissolves upon contact with the fibre glass resin. This allows more flexibility and interconnection between the alternate layers of the fibre and resin.

Essential materials required, Chopped Strand Mat (CSM) or fibre glass tape, resin (attention this has a limited life) and hardener are for the fibre glass material. A measuring dispenser for the hardener, a grooved metal roller, important to remove any air bubbles, a stiff bristled brush, you will also need acetone or cellulose thinners for cleaning. Finally, an absolute must, Gloves.

Rather than buy a proprietary filler, why not make your own as you have the resin and hardener, almost any aggregate can be used together with clear general purpose resin and hardener. For instance, fine sawdust makes perfect filler for wood, powdered chalk or a cheap talcum powder makes dense filler of which can be used for cracked concrete, brickwork. Mix one part of aggregate to one part of resin/hardener solution when making up the paste, carefully turning the mix into itself, avoiding creating air bubbles until the mix is to a uniform color. Attention to the quantity you mix, as it may harden before you have had the chance to use it all. Damp and cold are not conducive to successful work, ideal temperature approximately 20 C.

Filling holes or dents, to repair minor holes or dents with filler start by scuffing the area with a sanding disk at least 25 mm around the affected area. Clean the area with a white spirit, if you are working with metal apply a coat of rust inhibitor. If the hole you are repairing is in metal and the repair is not to show above the surrounding surface,I would suggest you indent the area around hole with a ball head hammer, this way the indent can be filled and later sanded to a flat smooth finish.

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