Thursday, October 16, 2008

The Advantages Of Polymers (2nd Draft)

Polymers are very unique material. It like 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.
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.
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.
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.
More 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. That still much more properties can be improved. Recently many researches have been conduct to improved polymers properties. Still many products can be creating from this unique material.

9 comments:

blueberry said...

there are some grammatical errors in the second draft that you have to check..

i noticed that you have addded more explanation and described more in the second draft. for those who have studied science before it may not a big problem for them to understand the topic. but maybe for those who are lack of science knowledge, it will be a hard topic for them to understand.

inserting too much information in your writing will make it more difficult to understand. but it also depends on who are your target readers ..

if you purposely wrote them for those who are interested to know about polymers it is ok i think..
keep up the good work.

hanmie7227 said...

First of all, you should organize you essay well. You should put gap between one paragraph to another paragraph for reader so that it would not be difficult for reader to read it.

Your introduction is quite okay and straight forward. However, it would be better if you improve it. For example you is you may tell people like this:

"plastic has become a part of our life. From the bedroom furniture, until kitchen utensils, plastic is a commonly use materials in human life." (sorry for the bad language)

this is just a suggestion for introduction. It depends on your creativity. I think it is better to start with something that reader's familiar than jump it straight into something that did not know. Generate their prior knowledge first, than later go into depth what are you going to talk about.

You should check your grammar in your essay. Sometime you use past, and sometime you use present. It is quite confusing. For example is

"there were several types of fillers with different functions."

It sounds that the fillers that you talked about are not exist or used anymore. Please take a notice on this thing.

I agree with blueberry, there are some grammatical and spelling mistakes. You should check it back. That's all. Feel free to defend on what i comment.

yagami said...

It seemed that you had added more explanation about fillers and crosslink. Pay attention to the grammatical errors that you have done. Some of them are repeated.
Some of the grammatical mistakes you have done are:

"It like solution"
should be "It is a solution..."

"Polymers are very unique material"
should be "Polymers are very unique materials"

"Sometimes they also not know..."
Sometimes they also do not know"

"Most of the materials were change to polymers..."
Most of the materials are changed to polymers..."

VITAL ERROR:
"The ways to modified..."
After to you should always use the basic form
"The ways to modify..."

You shoul also pay attention to your tenses. Do not write it down using past tense becaus you are discussing about facts. Facts always should be written using present tense form

nEuRuLe @z@Ni said...

as a non native speaker, we always do grammar mistakes sometimes, same like me, but u have to pay much more attention to the sentences. i agree with the other comments. to separate each paragraph, u can put sequence connectors like, first, next, besides that, on the other hand, and so on. your essay is a factual essay. but think u can make it more interesting by adding some rhetoric questions or add some tag line or excerpt or newspaper article or dialogue or anything..but this one is clearer that the first draft...keep up the good work.

persona non grata said...

firstly, you should put gap between your paragpraph to make it easier to read.

U also had added more imformation in each point. It was good but you need to check whether that information is important or not.

sometimes you should start your sentence with linking words such as besides, moreover, in addition, in other hand and so on. Try to use these linking words to make your sentence connected with previous one.

onekyh said...

Well, first of all grammatical errors. It seems like you did not improve on this after being told so in your first draft. You should ask someone to check your work so that it won't affect the flow of your essay. There is an additional information which is good, but please review your grammar and sentence structures first.

babysbreath said...

I agree with persona non grata that you should check whether the information included is important. Furthermore, maybe you can ask a friend to help you check for grammatical errors.

¬(_NaMi_)¬ said...

i wonder, do u really take all d comments into consideration...

i think, overall u committed (like commit suicide lak :P ) minor grammatical mistakes. though we can still understand ur essay but there r lots of GLARING grammatical mistake dat our frenz have pointed out to u, i know it's not that easy to understand the grammatical aspects but at least u can try.

lupikirlah sendiri said...

sorry for never commenting on ur draft, cos the topic is quite boring hehe. some mistakes like not know shud be dont know,no paragraph here,(1st draft is better) besides ur essay is like copied and pasted from somewhere becos its all facts that are jargon to other people. u shud put more personal touch to the writing that will make it " tasty" to be read. after all we want to read it too!!