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Powerful Storage Capacities
If one job is to deliver moisture at the right time and another to keep crucial areas dry, they may seem like two incompatible missions. But super absorbers made of polymers have precisely those characteristics. The results are impressive.
The argan tree is one of the world’s oldest tree species. It is thought to have been widespread about 65 million years ago in what is now the Mediterranean region. Today, the tree, which has an expansive crown and countless thorns, thrives solely in a fairly restricted area of Morocco. It is not just goats who like the almonds that grow on these trees. The Berbers extract a highly coveted oil from them. About 30 kilograms (66 pounds) of the almonds have to be processed to produce 1 liter of the oil. Known as “liquid gold,” it’s not only used for domestic cooking – it also can be found in grooming products for skin and hair.
Support for Its Cultivation
In 1998, UNESCO declared the geographic range of the tree to be a biosphere reserve. The trees only reach their maximum productivity after 50 to 60 years. To ensure their survival, a strong focus on their cultivation is essential in these barren landscapes, especially since reductions in groundwater and land clearing are decimating the population. The insertion of super absorbers in dry soil has proven to be a practical option. This is shown by experiments that a Moroccan research Institute has carried out with small polymers. The advantages are clear: They can absorb up to 500 times their weight in water. As soon as the soil dries out, the artificial granules give off the nutrition and fluids that were stored inside them earlier and deliver them to the roots of plants around them. This property of the granules makes the polymers a valuable product generally for agriculture and gardening.
Binds Up Fluids When None Are Desired
Other economic sectors benefit from the characteristics of super absorbers, especially when portions of their products must be kept dry. For example, for dressing materials and hygienic items like incontinence products and single-use diapers. If they come into contact with liquids, the polymers soak them up and a gel is produced. The liquid remains bonded in the material and is not released later. These characteristics are also effective in a different field: the manufacture of casings for deep-sea cables used to transmit electrical energy or data. If a line is ever damaged, the super absorber embedded in the casing keeps water from entering lines and causing malfunctions for a certain period of time. This is an example of how polymer granules play to their strengths. They are a way to absorb and store liquids, whether in agriculture, medicine, grooming products, the energy sector or the telecommunications industry.
Plastics are our current focus. On single-use plastic as a burden on society – and how we can deal with the problem. And on the question of whether plastic can be a solution. You can find more on the topic “Plastic – Breakthrough and Burden” in the latest edition of our magazine ESSENTIAL.
More Stories About Sustainability
Tender Leaves amid Mountains of Trash
Plastic trash from around the world ends up in Vietnam. At the same time, a new generation of innovative city-dwellers is discovering its ecological conscience. Are rice-flour straws and leaf-based packaging suitable solutions for the rest of the world? A visit to Southeast Asia.
Materials for Wind Power
If you were to stand a single rotor blade on end next to the Dresden Frauenkirche, it would rise more than 10 meters higher than the church’s tower cross. Without the use of composite materials, the blades of the latest wind turbine giants would be too heavy to function.
A Material from the Bark of a Tree
Natural rubber, sometimes called caoutchouc, is the raw material used in making what we simply call rubber. Thailand is the world’s biggest exporter of natural rubber. It is where the first plantations and producers are turning to sustainable cultivation methods – by abandoning pesticides and monoculture, for example.
Would the World Be Better Off without Plastic?
In the emotional debate over microplastics and the accumulation of trash in the oceans, Dr. Ernst Osen makes the case in ESSENTIAL magazine for a sober accounting. In many technical applications, plastics provide the best ecological footprint, the expert says.
“The Future Is Presenting Us with Opportunities”
In July 2019, Dr. Theodore Duclos began serving as Chief Operating Officer (COO) in addition to his duties as Chief Technology Officer (CTO), taking over operations, lean, supply chain management, and corporate procurement. In this interview, he talks about the advantages that his dual role offers, the capacity to innovate, and what the transformation of the auto industry means for Freudenberg Sealing Technologies (FST).