Foreword: plastic recycling, an invisible form of pollution
The treatment of plastic waste is not an environmentally-friendly process. According to ADEME, the degradation of plastics is a real obstacle. We’re talking about invisible pollution and a destructive chain for the planet. Today, plastics are either burnt or hidden.
In fact, only PET bottles (i.e. 1 to 2% of plastics) are actually recycled. The rest are incinerated, generating toxic emissions, and the rest are buried in the ground…
The issue of bioplastics is therefore crucial for the environment. Biodegradable plastics offer a sustainable solution to this infernal machine. Consumers and manufacturers are turning to alternatives: Nodax is (surely) the future. In conclusion, trust the OK Compost label !
Bioplastics: how is Nodax produced?
Nodax, an ecological and sustainable alternative
As we mentioned earlier, this PHA is manufactured using a biological fermentation process. Unlike conventional plastics, which are derived from fossil resources, Nodax is produced from renewable raw materials. Vegetable oils (canola, soya or palm oil) and sugars are the most commonly used.
Manufacture and use of Nodax
The manufacturing process begins with the cultivation of specific bacteria, which then synthesise the polymer as a source of energy storage. During fermentation, the bacteria produce Nodax in two stages:
- they consume organic substrates to grow and multiply
- they accumulate the polymer inside their cells in the form of granules
The polymer is then extracted and purified to be transformed into plastic beads. This extraction can be carried out using mechanical, chemical or enzymatic processes. These PHA granules are then ready to be moulded (or extruded) for various applications in industry…
PHA: what are the applications for Nodax?
With its unique, vast and constantly expanding properties, Nodax is already being used or is in the process of being adopted for:
- Food packaging: Nodax films and bags preserve the freshness of products while offering a biodegradable and compostable solution.
- Disposable tableware: Nodax cutlery, plates, straws and cups offer a sustainable alternative and reduce the environmental impact of plastic waste.
- Medical and hygienic products: thanks to its biocompatibility,Nodax is used to manufacture medical devices (sutures, temporary implants, etc.) and disposable hygiene products (nappies, feminine protection, etc.).
- Agricultural applications: mulching film and planting pots decompose in the soil after use. As well as enriching the soil, no residual plastic pollution is detected.
Nodax: what are the advantages of this biomaterial?
Renewable materials and complete biodegradability
One of the most remarkable properties of Nodax is its biodegradability in multiple environments. It does not survive in soil, freshwater, seawater or any type of industrial composting. This material decomposes naturally in a few months, or even a few weeks, without leaving any toxic residue.
A biosourced material means biocompatibility and safety
Because of its biosourced nature and non-toxic chemical composition, Nodax is biocompatible. It can simply be used for applications in contact with food, as well as medical and paramedical products. Diversity and safety are assured for both the planet and its inhabitants.
Nodax offers flexibility and proven mechanical strength
Nodax has mechanical properties comparable to those of petroleum-based plastics such as polyethylene and polypropylene. With good flexibility, tensile strength and durability, it can replace these plastics, which are considered polluting.
Is Nodax PHA the future for the plastics industry?
High production costs for Nodax
There’s no denying it, the cost of manufacturing Nodax is still higher than that of traditional plastics. This is the main obstacle to its mass adoption. However, as demand increases and production processes improve, costs could fall over the next few years.
The availability of raw materials
Here, we’re talking about the financial balance. Supply and demand. Nodax production relies on the availability of renewable raw materials, as well as their price. Variations in the supply or cost of these resources can have a direct impact on the production of this biopolymer.
Nodax: between awareness and regulation
For consumers and manufacturers alike, it is essential to stimulate demand for bioplastics. This is everyone’s responsibility. At the same time, governments must continue to support regulatory initiatives that promote the use of biodegradable materials.
Nodax represents a significant advance in the field of bioplastics, offering a viable and environmentally-friendly alternative to conventional plastics. Despite certain obstacles, both industry and politicians are in favour of its widespread use. This biopolymer could play a key role in the transition to a more environmentally-friendly circular economy.
