MICRONIZED BLEACHED EUCALYPTUS KRAFT PULP FIBRE BIOCOMPOSITE

• Main Authors: AFONSO VALENTE, Bruno Filipe, CUNHA VILELA, Carla Andreia, DA ROCHA FREIRE BARROS, Carmen Sofia, PASCOAL NETO, Carlos de, RICARDO GASPAR, Alexandre Miguel, DOMINGUES SILVESTRE, Armando Jorge
• Format: Patent
• Language: English; French; German
• Published: 20.12.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; IMPREGNATING OR COATING OF PAPER; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

The invention relates to a biocomposite comprising a bioplastic and micronized fibers of bleached eucalyptus Kraft pulp, as a simple and sustainable alternative to composites with petrochemical-based components for application in the industries of automotive, furniture, aerospace, construction, musical instruments, home appliances and electronic components, packaging, among others. The biocomposite includes micronized fibers of bleached eucalyptus Kraft pulp in a percentage by weight of 5% to 60%. The fibers have an aspect ratio of 11.0 to 30.0.The biocomposite is entirely biologically based and presents dispersion, homogeneity, tensile strengths, and increased tensile and flexural modulus compared to biocomposites with non-micronized fibers.