پروفسور فیزیک

این سایت برای دانش آموزان،دانشجویان،اساتیدفیزیک و علاقه مندان به دانش فیزیک می باشد...

The Advantages and Disadvantages of Polyethylene

Polyethylene is the preferred and commonly used plastic on the earth, utilized in shopping bags, toys and shampoo bottles. There are over one hundred million tonnes of the fabric’s resins produced yearly, which accounts for 34% of the plastics market.

Advantages
Polyethylene has many benefits which is why it has been used to make many products over the years.

Polyethylene has many useful properties which make it suitable for a number of applications. It has low strength and hardness, however is very ductile and has good impact strength; it will stretch slightly than break.
Polyethylene is water-resistant and durable, so it is longer lasting when uncovered to the elements compared to other polymers.
Polyethylene is a good electrical insulator, offering electrical treeing resistance but can develop into electrostatically charged. Adding antistatic agents will forestall this.
Depending on the thickness of the polyethylene, it can be virtually transparent to opaque. The clearness of low-density polyethylene (PE) makes it suitable for packaging.
Polyethylene as HDPE could be recycled into different products, which is more price effective than manufacturing a new product from new plastic.
Polyethylene has a melting level range of one hundred twenty to a hundred and eighty degrees Celsius for medium to high density and 105 to one hundred fifteen degrees Celsius for low-density polyethylene. The nice heat resistant properties enable it for use in high and low temperatures.

Disadvantages
Despite its commonity, polyethylene is a polymer with a couple of disadvantages which can deter producers and consumers from using it.

The polymer, like many different plastics, takes a long time to break down, and as such can end up in landfill sites for decades, which we’re running out of house for.
One other way to get rid of polyethylene is incineration, which can lead to harmful gas emissions.
Polyethylene is principally extracted from petroleum or natural gas, of which there’s a finite amount.
Producing polyethylene takes a considerable amount of energy and in addition leads to high emissions of carbon dioxide, a greenhouse gas contributing to global warming and local weather change.
Although it is technically potential to recycle the keyity of plastic polymers, there are numerous completely different types to kind via, which is pricey and complex.

In the event you loved this post and you want to receive details with regards to orange polythene assure visit the site.

پروفسورفیزیک © 2016 Frontier Theme