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bioplastics daily news
  • Researchers develop biobased, self-healing elastomer derived from lignin

    21.05.2019

    Scientists at Oak Ridge National Laboratory (ORNL) have developed a new, stretchy, plant-derived material that outperforms the adhesiveness of the natural chemical that gives mussels the ability to stick to rocks and ships.

    This bio-based material—composed of lignin (the substance that gives plants sturdiness) and epoxy—can self-heal and elongate up to 2,000%. Converting lignin into well- defined compounds is often challenged by structural complexation and inorganic contamination induced by the pulping process.
    To achieve these results, researchers developed a unique method to extract a specific form of lignin. Instead of breaking down lignin into small molecules, we extracted a uniform and rigid oligomer from the lignin waste stream. The multifunctional polyphenol oligomer containing carboxylic acid, alcohol, and phenol groups is highly reactive and brings stiffness into the material matrix. 

    a

    Researchers developed a new material using epoxy mixed with a form of lignin naturally rich in hydroxyl groups that can self-heal if sliced and elongate up to 2,000%. Photo courtesy of ORNL

    The resulting molecular structure creates a super-sticky, Tough, super-sticky elastomers are economically prepared from this oligomer by a reaction with epoxy-terminated polyethylene glycol, without needing any solvent. The highly elastic material can heal quickly, where broken, through hydrogen bonding

    This extracted lignin shows promise for a range of industrial applications including coatings, glues, and hydrogels. The results, published in ACS Macro Letters, demonstrate new potential for a small, but high-value portion of the lignin waste stream from biorefineries and the pulp and paper industry.

    https://www.ornl.gov/news

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  • DIN CERTCO expands network of laboratory partners

    20.05.2019

    Din Certco has entered into a new collaboration agreement for the testing of compostable products with Scion, a government-owned company that carries out scientific research for the benefit of New Zealand. Scion specializes in research, science and technology development for the forestry, wood and wood-derived materials and other biomaterial sectors.

    mCooperating with Scion will allow DIN CERTCO to strengthen its position in Australia and New Zealand, according to Dr Oliver Ehlert (product manager, compostable products, DIN CERTCO) says:
    “We can offer our customers a faster service for laboratory testing with local partners around the globe.”

    Dr Florian Graichen, science leader biopolymers and chemicals at Scion) says that DIN CERTCO is a ‘key partner for Scion in our role to lead the transition of New Zealand to a circular bioeconomy.’

    “Scion is helping to solve the new challenges that arise through the transition into a new economy focused on sustainable design and renewable resources.,” he said. “The ability to design, manufacture, test and certify compostable products and materials are crucial for the success and future growth of New Zealand’s packaging and plastics-related businesses.”

    DIN CERTCO previously entered into a collaboration with the Australasian Bioplastics Association (ABA) and the certification system there for certifications according to the AS 4736 and AS 5810 standards in the Australia and New Zealand (Australasia) markets (https://www.bioplastics.org.au/)

    Scion covers the full scope of laboratory tests for industrial compostable products and home compostable products and can perform the laboratory testing for the certification of compostable products according to all relevant national and international standards:
    ASTM D 6400, EN 13432, EN 14995, ISO 17088, ISO 18606, AS 4736, AS 5810, NF T 51-800.

    For further information, visit: http://www.scionresearch.com/home

  • COEXPAN, NatureWorks and AMUT Group showcase PLA sheets for barrier packaging applications

    17.05.2019

    COEXPAN, Grupo Lantero’s division specializing in the manufacture of rigid sheets and thermoformed products, will be exhibiting at Chinaplas 2019, the international trade fair for the plastics industry which takes place 21-24 May in Guangzhou from 21st to 24th May.

    aThe company is showcasing its new range of rigid plastic foils made of Ingeo polylactic acid (PLA), a biobased material approved for a range of food contact applications.
    COEXPAN has entered into a partnership agreement with NatureWorks LLC, the supplier and founder of Ingeo PLA bioplastic, and with the AMUT Group, the leading Italian manufacturer of extrusion and thermoforming lines. Together they will be running live thermoforming demos of COEXPAN PLA sheets during both Chinaplas and K-show international exhibitions.
    The company’s innovative range of PLA rigid sheets for thermoforming, marketed under the CoexBioR brand name, has demonstrated its outstanding performance in processing and packaging applications. The comprehensive family of medium and high-barrier solutions in PLA is primarily intended for dairy desserts, coffee or tea capsules, and fresh food trays among others.
    The new PLA sheets have exceptional barrier properties that reduce oxygen, grease and water vapour transmissions, preserving the flavour and aroma of foods for longer. These characteristics make PLA rigid sheets highly suitable for packing applications that require extra barrier protection, such as coffee and tea capsules or fresh food trays.
    PLA sheets are also outstanding for their high degree of transparency and glossy, with high tear strength and excellent strength and formability properties compared to other thermoplastic materials.
    In addition to PLA, COEXPAN has extensive expertise in developing rigid foils in different thermoplastic materials, such as PET, PP and PS, both for Form-Fill-Seal (FFS) and thermoforming machines, with medium and high-barrier properties, providing the best packaging solutions that ensure product efficiency and food preservation properties.

    http://www.coexpan.com

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