Indian Institute of Science scientists develop new graphene-infused packaging

14 July 2016 (Last Updated July 14th, 2016 18:30)

Scientists from the Indian Institute of Science (IISc), Bengaluru, have developed a new type of packaging that incorporates a single layer of graphene to protect packaged goods from moisture.

Scientists from the Indian Institute of Science (IISc), Bengaluru, have developed a new type of packaging that incorporates a single layer of graphene to protect packaged goods from moisture.

The newly developed material is capable of preventing water molecules from entering packaged products, such as electronics and medicines.

During the development of the new material, the researchers synthesised a single layer of graphene via chemical vapour deposition, and used a simple and scalable process to convert the graphene to a polymer film.

Water vapour permeated the material at a rate of less than 10-6gm per m² every day.

The scientists conducted an accelerated aging test, which demonstrated that an organic photovoltaic device wrapped in the graphene-infused film would have a lifetime of more than a year.

However, goods packed in polymer without the graphene layer offer a lifespan of just 30 minutes.

"The newly developed material is capable of preventing water molecules from entering packaged products, such as electronics and medicines."

IISc Department of Materials Engineering professor Praveen C Ramamurthy said that in order to increase the lifespan of a moisture-sensitive device for more than a year, the packaging must prohibit water vapour from entering at a rate of less than 10-6 gm per m² per day.

It is noted that plastic packaging materials help protect food, electronics, medicines and other items from dust, bacteria and sometimes from water.  

However, water molecules can pass through plastic films and reduce the lifetime of products.

The IISc scientists involved in the project have already created a prototype of the new graphene-infused packaging material, reported Bangalore Mirror.


Image: Making packaging nearly impenetrable to water could vastly improve the lifetimes of moisture-sensitive products. Photo: courtesy of Medioimages / Photodisc / Thinkstock.