Science today biopol

Biopol is an environment friendly bio-degradable plastic made naturally in plants from starch and glucose, used by them as an energy reserve. Biopol is actually the brand name for a group of bio polymers called PHAs and PHBs (alcaligens).they are made for injections moulds, water based latex products, water-resisting coatings,fiber,and fi lm .They are insoluble in water so this means they are great at resisting water that’s why they are used as water resisting courts as such.

SCIENCE TODAY – BIOPOL

Bio-plastics is a form of plastic derived from plant sources such as sweet potatoes , sugarcane , corn starch , pea starch , soy bean oil , etc.

Bio-plastics are environmentally friendly because , compared with traditional plastics , their production results in the emission of carbon dioxide , which is thought to cause global warming.

They are also biodegradable .

BIO-PLASTIC

Bio-plastics are used in many ways. A few are:Packaging: shopping bags , trays and

containers for meat , fruits , eggs , bottles and dairy products . Blisters for fruits and vegetables .

Catering products: disposable crockery and cutlery , bowls , pack foils , straws , etc.

Agriculture: plant pots for flowering and vegetable plants.

Medicine: to produce artificial heart valves , tooth reconstruction , bone fracture plates and artificial skin.

USES OF BIO-PLASTICS

Materials required: 1) starch powder , 2) glycerine , 3)vinegar , 4)water.

Method:1)Take a non stick vessel and add 2 table spoon of

starch powder and 4 spoons of water in it . Stir it with a spatula and add one spoon of glycerine , 1 spoons of vinegar. After that mix them thoroughly and heat it slowly on a stove.

2)At fi rst a paste like substance forms. Then , it turns into a jelly like substance. When it becomes bubble less and clear , stop heating it. Pour it in a hard plastic tray and spread it. It takes about a day to dry . Hence you can get bio-plastic.

HOW TO MAKE BIO-PLASTIC

Bio-plastics does have both advantages and disadvantages. The advantages of bio-plastic is that organisms are able to feed on them better and faster when weather conditions are right. Thus , this allows bio-plastic to be broken down into smaller pieces , reducing pollution in the process. With this , pollution is reduced and there will be no problem in litter or harms the wildlife.

ADVANTAGES OF BIO-PLASTICS

The main disadvantage oil-based bio-plastic is that when they break down , carbon dioxide is released in the process and contributes global warming.

Another disadvantage of bio-plastic is that degradation will happen very slowly underground , if it even disintegrate at all.

Also , bio-plastic when mixed with normal plastic would reduce the worth of the plastic itself if it is recycled and make the recycled plastic useless.

DISADVANTAGES OF BIO-PLASTIC

Global warming is the rise in the average temperature of the earth’s atmosphere and oceans since the late 19th century and its projected continuation.

GLOBAL WARMING

The green house affect is when the temperature rises because the sun’s heat and light is trapped in the earth’s atmosphere.

GREEN HOUSE GASSES:Green house gasses are gasses present in the earth’s atmosphere that collect heat and light from the sun . With too many green house gasses in the air the earth’s atmosphere will trap too much of heat and the earth will get hot too . A result plants , animal , people would die because the heat would be too strong.

GREEN HOUSE AFFECT

ALTERNATIVE SOURCE OF ENERGY

BY GROUP-2