Biodegradabel plsatics

INTRODUCTOIN The potential of biodegradable polymers and more particularly that of polymers obtained from renewable resources such as the polysaccharides (e.g., starch) have long been recognized. However, these biodegradable polymers have been largely used in some applications (e.g., food industry) and have not found extensive applications in the packaging industries to replace conventional plastic materials, although they could be an interesting way to overcome the limitation of the petrochemical resources in the future. The fossil fuel and gas could be partially replaced by greener agricultural sources, which should participate in the reduction of CO2 emissions.

Amount of plastic recycled

A chart on recycling of plastics

How does biodegradable platic work ?

How it more eco friendly

 Advantages of Biodegradable Plastics

 Biodegradable plastics take less time to break down Biodegradable plastics are renewable Biodegradable plastics require less energy to produce Biodegradable plastics are not toxicBiodegradable plastics reduce dependence on foreign oil Biodegradable plastics are easier to recycle

BIO AND NORMAL PLASTIC COMPARSION

plasticsbiodegradable Non toxicReMouldable Cheap costEg tyres,

plastic bags etc…….

Biodegradable Plastics

biodegradable Non toxicReMouldableCheap cost

Example of BIO AND NORMAL PLASTIC S

plastics Biodegradable Plastics

Types of plastics

Biodegradable plastic Bio based Thermo filmNormal Plastic Thermo setting Thermo

Difference between

THERMO SETTING

ReMouldableRecycleableBare high

temperatureEg tyre

THERMO

ReMouldableRecycleableBare high

temperature Eg , polythenet

covers

EXAMPLES OF

THERMO SETTING

THERMO

Bio based plastics

 bio based plastics are made from corn, soy or potatoes. These plastics meet standards set by the American Society for Testing and Material (ASTM) for composting, breaking down 60 percent or more within 180 days or less. In order to do this, bio-based plastics need water, heat and aeration.

Examples of bio based

Biobased plasticsBio-Based advantage

Potentially a much lower carbon footprint

Lower energy costs in manufacturing

Bioplastics can be made clearer and more transparent.

Do not use scarce crude oil.

Bio-Based disatvantage

Take much longer to compost if in landfill since landfills lack one key component - aeration

Be a bit pricey Not be recyclable

Thermal-based biodegradable plastic has an additive that causes it to break down when exposed to high temperatures. This plastic is safe to use for food containers since it is non-toxic. Most times, this product can also be recycled.

Thermal-Based Film

Types of thermal flimOxo biodegradable This plastic is less

expensive to produce since it is easy to use with machinery that currently manufactures conventional plastics. When aerated, it gradually breaks down into biodegradable fragments over a course of several months to a few years.

hydro-biodegradable Hydro-

biodegradable plastic breaks down when exposed to moisture at a faster rate than oxo-biodegradable plastic.

Downsides of Oxo and Hydro-biodegradable PlasticShelf-life and degradation can be two of the downsides to this type of biodegradable plastic.Plastic may start to degrade if it's stored in a hot place, such as a trash bag in an outside garage container.Some of these plastics are labeled with an expiration date.

DISATVANTAGE S OF THERMAL PLASTIC.

Additive-Based Film Combo

Another additive-based film is manufactured by Maverick Enterprises, known asGreen Film™. This film degrades first into humus and then into carbon dioxide or methane and water when buried. It atvantages inBreaks down with or without aerationHas no expiration dateCan also be recycled

Done by T.Sathi ram of ryan class viii a sec eintsein or yellow house