Building bricks from plastic waste


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Revolutionary ‘green’ types of bricks and construction materials can be made out of PVC recycling, waste, vegetal fibers, or sand with the help of a remarkable new type of polymer rubber discovered by Australian scientists.


The rubber polymer, the own fact of sulphur and canola oil, can be compressed and heated with fills, to create building materials of the future, says a new paper unveiling of a new and promising technique that has just been published in Chemistry—A European Journal.

“This method could produce materials that can one day replace non-recyclable building materials, bricks and even concrete replacement,” says organic chemistry researcher from Flinders University, Associate Professor Justin Chalker.

The rubber powder can potentially be used as pipes, coatings, rubber, or bumper, or is compressed, heated and then mixed with other fillers to form entirely new compounds, including more sustainable construction of concrete blocks, replacement or isolation.

Cement is a finite resource and highly polluting in their production, with the production of cement is estimated to contribute more than 8% of the global emissions of greenhouse gases, and the construction industry throughout the world accounting for about 18%.

“This new recycling method and new compositions are an important step forward in the manufacture of sustainable construction materials, and the rubber material can be repeatedly ground and recycled”, says the lead author of Flinders Phone D. Nic Lundquist. “The rubber particles may also be used for the first time to purify the water and then reused on a rubber mat or tube.”

“This is also important because there are currently few methods for recycling PVC, or carbon fiber,” he says, with the collaboration of Flinders, Deakin University and the University of WA.

Co-author and research collaborator Dr Louisa Esdaile says the important research looks at ways to reuse and recycle the materials, so that these materials are multiple-use by design.

“This technology is important in a circular economy,” says Dr. Esdaile, a special contributor for this month of the Young Chemist problem Chemistry—A European Journal (ChemEurJ).

The new manufacturing and recycling of the technique, called reactive compression molding, is applied to a rubber material that can be compressed and stretched, but one that will not melt. The unique chemical structure of the sulfur backbone on the novel of the rubber allows several pieces of the rubber together.


High hopes for the new era of rubber: “the Self-repairing material has many industrial uses


More information:
Nicholas Lundquist et al. Reactive compression molding post‐reverse of the vulcanization, A method to assemble, recycle and reuse sulfur polymers and composite materials, Chemistry – A European Journal (2020). DOI: 10.1002/chem.202001841

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Flinders University

Appointment:
Building bricks from plastic waste (by 2020, the 25 of May)
retrieved 26 May 2020
of https://phys.org/news/2020-05-bricks-plastic.html

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