Plastics

Order of the National Green Tribunal regarding plastic bags dumped in the Budhi Gandak river, Muzaffarpur, Bihar, 07/04/2025

Order of the National Green Tribunal (Eastern Zone Bench, Kolkata) in the matter of Devavrat Kumar Sahani Vs State of Bihar dated 07/04/2025. The application was being registered on the basis of a letter petition dated December 27, 2024 sent to the NGT by the applicant, Devavrat Kumar Sahani, Muzaffarpur, …

No problem!

Plastics have long been condemned by environmentalists because they are not bio-degradable, but the discovery of

Plastic prowess

A VISIT to a factory that manufactures batteries is riot a very pleasant experience. A factory manufacturing lithium batteries uses electrodes made from lithium and manganese dioxide (mo) Which are used to run anything from wristwatches to camcorders. Lithium reacts explosively with water, therefore the humidity in the factory must …

Repackaging plastics

to broadbase the use of plastics in an eco-friendly manner, the ministry of environment and forests ( m o ef ) has constituted a national task force headed by D K Biswas, chairperson of the Central Pollution Control Board ( cpcb ). The report would include a strategy to manage …

Toughness that appeals

Wood can now be produced from waste. The UK's Save Wood Products Limited has come up with a product called durawood that combines the properties of wood and plastic. Derived from recycled polystyrene packaging waste, the product bears the aesthetic and physical properties of wood and the durability of plastic. …

In a better mould

germany's steel industry has come up with a unique solution to the problem of waste plastics

Wonder wood

it looks like timber, works like it, but retains its good look for several years without any protective treatment. This new material is wood prepared from recycled polystyrene. Polystyrene is a plastic material composed of hydrocarbons

Quite resistant

A high-molecular silicon plastic that can withstand temperatures ranging between 400-500

Frozen for reuse

The process of cryo-recycling of plastic wastes has recently been developed by Harry Rosin, director of the Hygiene Institute in Dort- round, Germany. The method uses freezing rather than burning techniques for treating mixed plastic wastes. Wastes are frozen at temperatures as low as -160

Friendly plastic

A K NANDA, a young scientist from Berhampur in Orissa, has developed a commercially viable process for production of bio-degradable plastic sheets and films using starch. The polythene films developed from starch undergo complete degradation in two months of soil burial, unlike polymer plastics which take upto 100 years to …

BLAZING ISSUE

To prevent a recurrence of the devastating fire 1hat broke out in west Delhi on June 6 last year, the Delhi High Court said in a recent ruling that the ban on trade in poly vinyl chloride (PVC) material in Jwalapuri and adjoining colonies of the capital was "merely on …

Advent of plastic electronics

'Plastic electronics', which behave like semiconductors, could become cheap, flexible alternatives to silicon-based electronics for certain products, according to Dutch scientists. These substitute semiconductors are based on polymers. Researchers at Philips have demonstrated that simple electronic circuits could be made cheaply by using low-cost substrates such as glass or plastic. …

Plastic ploys

POLYMERs are probably the most easily visible materials in our lives. From bottles to toys and from crates to packaging materials - they are omnipresent. Polymers are basically chemical compounds of high molecular weights consisting of a number of structural units - called monomers - which are linked together by …

Plastic eaters

THERE may finally be an answer to disposing off the scourge of environment: plastics. Researchers at the National institute of Bioscience and Human Technology in Japan have homed in on wro bacteria that decompose polyvinyl allcohol (PvA) and polylactic acid. PvA is used in textile mills largely to prevent fibres …

Consistent colour

RESEARCHERS from the University of Warwick have developed a technique to paint plastics as they are moulded. The team from Warwick Manufacturing Group's Advanced Technology Centre was led by Gordon Smith, who explains that if plastic components are coloured throughout - as in washing-up bowls, they fade at different rates …

Plastic policies

PLASTIC, the bane of environmentalists worldwide, is on an upward swing in India. By 2000 AD, the per capita consumption level of plastic in the country is expected to go up to 2.5 kg from the present 1.4 kg. This would prop up the Indian plastic industry whose investment is …

Plastic Problem

IT WAS darkness at noon for Delhiites on June 6, when a huge blanket of smoke covered the sun as the 3,000 odd shops in Asia's biggest market of poly-vinyl- chloride (PVc) goods in Jwalapuri, west Delhi, was gutted. Initial loss estimates put it at Rs 80 crore. None died, …

BIO SENSORS

Plastic and protein have joined hands for the common good of humankind. Jon Cooper and his colleagues at the University of Glasgow's Bio-Electronics Research Centre, Scotland, have successfully connected a polymer that conducts electricity to cytochrome c, a protein that plays a vital role in respiration, opening a simple way …

Plastic clothes

AFTER cashmere, alpaca and mohair, the latest fad in the global textile market may well be recycled plastic clothes. Going by the recent developments in the chemical and textile industries, it may not be long before a sweater or a jacket made from recycled plastic bottles becomes an essential fashion …

MALAYSIA

Malaysia has lifted a ban on the import of polypropylene and polyethylene, materials used in the plastics industry. The decision signals a temporary truce in its trade war with neighbouring Singapore, which claimed that its petrb- chemical industry had suf fered a blow because of the Malaysian move. The 2 …

Oil from waste

A waste recycling plant in Bottrop, Germany, has developed a technology to convert assorted plastic wastes into oil. The synthetic waste -- plastic bags, yoghurt cartons and computer casings -- is mixed with heavier oil residues and water added to it. This results in the breaking up of chemical compounds …

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