Question

write essay on recycle of plastic

Answer 1

Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products. Since the vast majority of plastic is non-biodegradable, recycling is a part of global efforts to reduce plastic in the waste stream, especially the approximately 8 million tons of waste plastic that enters the Earth's ocean every year.

Compared with lucrative recycling of metal, and similar to the low value of glass, plastic polymers recycling is often more challenging because of low density and low value. There are also numerous technical hurdles to overcome when recycling plastic.

When different types of plastics are melted together, they tend to phase-separate, like oil and water, and set in these layers. The phase boundaries cause structural weakness in the resulting material, meaning that polymer blends are useful in only limited applications. The two most widely manufactured plastics, polypropylene and polyethylene behave this way, which limits their utility for recycling. Recently, the use of block copolymers as "molecular stitches" or "macromolecular welding flux" has been proposed to overcome the difficulties associated with phase separation during recycling.

Answer 2

First, depolymerization is the step of transfer a polymer in a mixture of monomers. Second, thermal depolymerization is a depolymerization step using hydrous pyrolysis for the reduction of complex organic materials (often waste products of various sorts, often biomass and plastic) in a light crude oil.Third, the heat compression process have taken all unsorted, cleaned plastic in all forms, from soft plastic bags to hard industrial waste.

Recycling is very important to the world. Reduce, Reuse and Recycle. Plastics are not good for people and earth.

Recycling plastic bottles assists to conserve natural resources, specially oil, that is nonrenewable natural resource obtainable only in limited provide recycling one ton of plastic can conserves around 3.8 barrels of oil according to the Environmental Protection Agency . 2.12 millions of plastic was recycled in 2008 which is equivalent to approximately 7.6 million barrels of oil.

These days, our earth has been filled by a lot of waste. There is a lot of garbage, plastic waste, and electronic waste. We always produce it and dump it when we need the new one. Our waste are piling up and continuously accumulating. Plastic waste is one of the biggest problems for us now. And our solution in this problem is recycling. In my opinion, recycling is a way to manage used items into new products. We can reduce, reuse, and recycling (3R) waste management (Peter, 2013). We can reduce our waste clothes with reuse it. There are some reasons why peoples recycle used or unwanted items, which are, prevent wasting unusable materials that still have usage after recycled, reduce the application of raw materials, reduce energy …show more content…
We know that nowadays plastic is the one materials that widely used by human in all of the country. Most of our goods become from plastic. The bad news is, plastics wastes that come from our unusable goods end up in the oceans. There are 60% to 80% plastic wastes on the sea are coming from the land and it will cause a big problem to 267 sea species in this world (Moore, Lattin, & Zellers). That one example is more than enough to start recycling our plastic waste. We can start from reduce and reuse first. For reduce example: when we buy something, we should prepare our own bag to put the goods we buy, dispose the waste according to the bin that specially provided for plastic, use a refill bottle for our drink bottle, and prefer a paper bag than plastic bag. How about reuse plastic bag? Some of countries have creative company that selling fine art and use plastic waste as the basic materials. One of the countries that have company like that is Indonesia. Indonesia has a lot of home industry that use plastic waste as their main materials. They make new thing from plastic bottle, such as plastic flower art, windmill toys for children, table lamp, and house accessories.