Biodegradable composite material
The invention consists in the application of waste wool in the process of manufacturing biocomposite/paper made of a combination of superheated water hydrolyze waste wool and recyclable kraft paper pulp such as waste cardboard, paper boards without the use of any chemicals and binding material.
The patented biocomposite/paper was made using superheated water hydrolyzed wool and recycled Kraft paper pulp without using any binder. In this biocomposite/paper matrix, the mixture of hydrolyzed wool and cellulose fiber together were resulted in a compact structure in paper/biocomposite. The raw wool fibers were given a simple washing treatment in order to remove a vegetable matter and dirt to increase the uniformity of biocomposite/paper structure. The superheated water hydrolysis of wool was carried out at various temperatures ranging between 130-170 °C using only water as a solvent for a different time (for example 30-90 min) considering the hydrophilicity of wool and its homogeneity with recycled Kraft pulp.
Based on the grams per m2 to be obtained, a known amount of solution was molded to form a sheet by evaporating the water.
After 90 days of degradation in the soil some samples are completely degraded while most of them found to be in > 90% state of degradation.
- Packaging sector to produce cartons, for the production of supermarket bags;
- Agricultural sector;
- Mulching films;
- Packing for agricultural products;
- Biodegradable pot to carry seedlings to be planted in the ground.
- Use of a waste biomass (coarse wool) to create sustainable circular economy;
- Paper is entirely organic, compostable, biodegradable along with wool modification process is a completely sustainable process;
- Paper sheets obtained can replace synthetic films in certain applications.