question about PVC-help please (1 Viewer)

[FlashingT-Shirt]

hey, this would really help my response for a particular question I have to worry about for an assesment task, I gotta do later

How important is PVC to the economy and the future?

 

[chowm]

Chemistry contexts 2
http://rapidshare.com/files/316485192/Chemistry_Contexts_2_right_click_to_extract.rar

click on free user to download

 

[mtsmahia]

hey, this would really help my response for a particular question I have to worry about for an assesment task, I gotta do later

How important is PVC to the economy and the future?

well in very simple terms, it provides employment to the people who produce it.

and, satisfys the wants of consumers - the science behind it is really important as PVC is crucial in our day to day lives . (bs about, the uses and relate it to Q)

 

[iMAN2]

PVC
Inclusions of various additives improve the flexibility and thermal stability of PVC.
- Its rigidity allows it to be used in water pipes
- Its flexibility allows it to be used in garden hoses.
- Resistant to oils and most organic materials so it used to make bottles to hold these materials
- Water pipes: electrical insulator, waterproof and corrosion resistant making it ideal for being in constant contact with water.

Adv of polymers on people and the environment
- Cheaper, less dense and safer than glass. Less likely to cause damage if broken.
- Conserves beach sand as this is used in glass production
- If recyclable, environmentally friendly
- For the economy, creates jobs (production, recylcing, packaging etc.)

Disadv:
- If not recyclable, accumulation of wastes
- Vinyl chloride - highly toxic to marine life, irritates skin and eyes.

Polymers have had a huge impact on society and the environment and based on this evidence the adv favour over the disadv.