Saturday, November 1, 2008

The Advantages Of Polymers (Final Draft)

Polymers are very unique material. It can become solution for lack of nature materials like timber, steel and others. But not all people know when we said polymers; the only significant that they know is plastic. Sometimes they also not know that most of product materials were changed to polymers. Most of the products materials were change to polymers because their long durability. It was done to reduce maintenance cost.

The purpose of polymers usage as raw material is because their properties that can be manipulated to follow product requirement. Polymers can be modified to become very strong, tough, flexible, elastic, heat resistant, weather resistant, and many more. All of the properties can be improved or reduced depend on the product requirement. It's like dream come true, when you can have material that very cheap but in the same time can fulfill all the requierment you need.

The ways to modified all this properties are by adding type of fillers. Fillers can be divided by functional and not functional. For functional filler they have active functional group such as OH, Cl, COOH, SO3 and many more. This type of filler will be reacting with polymer chain to improve their properties. For not functional group, they will not react with polymers chain. They way they improved polymer properties by fill empty space in polymer chain to cover polymer week point. Usually their molecule sizes are much smaller than polymers molecule. This two type filler have similar function to reduce polymers cost.

One of common type of fillers that always use in industries is extender filler. Extender filler type of filler that will not interact with polymers chain. The functions of these extender fillers are to improve polymer strength and to reduce cost. So the polymers will become much cheaper. Example of extender fillers are calcium carbonate, talc, silica, empty fruit bunch, rice husk and many more type of mineral and organic fillers. If we want try to imagine how this filler strengthen polymer structure, we can think polymer like sponge structure. We know sponge have many empty space in thier structure. So to strengthen polymer properties, extender filler will filled all of the empty space in polymer structure. By doing that polymer structure will become more strength.

The other type of common filler is crosslink agent. Crosslink agent will be using to improve strength of polymer. The common product using crosslink agent is tire. Crosslink agent will improve polymer bond by create new bond with other polymers chain. If we want to imagine, crosslink agent will make polymer chain will for ladder shape. So the polymer will become more strength. But the disadvantage of using crosslink agent is polymers cannot be recycled. The examples of crosslink agent are sulfur, carbon black and much more. For this condition you can imagine polymer chain like a thread. if the just stay alone the just can strength themself by tangle among themself. So crosslinkking agent will function to form a ladder shape with other polymer chains.

There were many several types of fillers with different functions. The other common types of filler are impact modifier, pigment, coupling agent, and many more. All of this fillers are using with specific ratio and process condition to make sure the effectiveness of fillers.

Other advantages of polymers are the much lighter, easy to handle, cheaper, and easy to process. There are more advantages when we compared with other materials. Other material cannot be improved from their original properties unlike polymers. Despite all the establish polymer products, there still more can be improved. Recently many researches have been conduct to improved polymers properties. Still many products can be creating from this unique material.


yagami said...

Finally you have fixed some grammatical errors that you have done since you have wrote the same errors twice. There are still some grammtical errors in your essay. You skipped the verb to be such as 'is' 'are' and so on a lot in your essay. You should be careful as it might have affected the meaning of your sentences. Anyway, I like the pictures you put there to make people know what polymers are. Well done for the third draft

¬(_NaMi_)¬ said...

so polymer nih plastiklah lah ek...
ooo, ok, skang baru rase senang ati nak bace ur draft sbb dah improve esp in grammatical aspect, previously i dont really focus on the meaning bcoz i was distracted by the grammatical mistakes,

i'm amazed la, rice husk and fruit bunch are under extended filler

By doing that polymer structure will become [STRONGER].

So the polymer will become [STRONGER]

i've juz realized that when u explained bout d extended filler and common filler,u ask us to imagine and u give real life example (ladder and sponge) so dat we can relate it easier.

Still many products can be CREATED from this unique material.


teddy bear pun is made from polymers ke?

¬(_NaMi_)¬ said...
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