Technology Features & Specifications
Protein-free natural rubber is prepared by the complete removal of the proteins from natural para-rubber, i.e. from the Hevea brasiliensis, in which the proteins play an important role as an enzyme in bio-synthesis of the rubber. As a result, the proteins exist at an interface between hydrophobic natural rubber particles and water in the latex state. Protein-free natural rubber is thus prepared in the latex state by using special chemicals.
Until now, enzymes which can decompose protein have been used to remove the proteins from natural rubber. However, the efficiency of the enzymes is too low to remove all the proteins from natural rubber. Recently, more efficient chemicals such as urea were used to remove all proteins from natural rubber.
In this technology, protein-free natural rubber with protein content of 0.00 weight% is prepared by incubation with urea and polar solvents such as acetone or alcohol followed by two or more centrifugation steps. Consequently, this technology offers protein-free natural rubber which is proved to contain 0.0 mg/g of extractable proteins.
Protein-free natural rubber can be utilized in the manufacture of:
- Medical hygiene products
- Vehicle tyres
- Engine mounts, belts, seismic isolation rubber, rubber rollers, seals etc.
The use of protein-free natural rubber in medical hygiene products would be immediately applicable as natural rubber has been used in the application before it was eliminated due to the latex allergy issue.
For other applications, protein-free natural rubber can replace synthetic rubbers which are produced from fossil fuel to contribute to the UN sustainable development goals (SDGs).
- Protein-free natural rubber will recover the markets of existing natural rubber applications that would be replaced with the synthetic rubbers by addressing the latex allergy issue.
- The procedure to prepare protein-free natural rubber is simple and its running cost is lower than the conventional deproteinization process.
- Protein-free natural rubber can contribute to the UN SDGs as a renewable resource obtained from Hevea brasiliensis which is considered as a carbon neutral resource.