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Use of Waste Red Seaweed Furcellaran for Development of Green Thermoplastically Processable Bioplastics.

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Title: Use of Waste Red Seaweed Furcellaran for Development of Green Thermoplastically Processable Bioplastics.
Authors: Merijs-Meri, Remo1 (AUTHOR) remo.merijs-meri@rtu.lv, Zicāns, Jānis1,2 (AUTHOR), Ivanova, Tatjana1 (AUTHOR), Bitenieks, Juris1,2 (AUTHOR), Jefimovs, Pēteris Patriks1 (AUTHOR), Bočkovs, Ivans1 (AUTHOR), Rībens, Žanis Edvards1 (AUTHOR), Bērziņa, Rita1 (AUTHOR), Bernava, Aina1 (AUTHOR), Rozentāle, Reina2 (AUTHOR), Bāliņa, Karina2 (AUTHOR), Žaimis, Uldis2 (AUTHOR)
Source: Polymers (20734360). Apr2026, Vol. 18 Issue 7, p884. 13p.
Subjects: Red algae, Ultrasonic waves, Mechanical behavior of materials, Biodegradable materials, Biodegradable plastics, Thermal analysis
Abstract: Bioplastics are in focus for the development of sustainable materials due to the depletion of fossil resources, generation of solid waste and global climate change. Considering this, the current research is devoted to the valorization of beachcast red seaweed F. lumbricalis for the development of thermoplastically processable bioplastics. The composites have been developed from beachcast red seaweed-derived furcellaran (FUR) and potato-derived thermoplastic starch (TPS) by using an ultrasound-assisted technique. Three different FUR concentrations (10, 30 and 50 wt.%) in relation to potato starch were examined for their thermoplastic processability. Fourier infrared spectroscopy (FTIR) was used to reveal the structural changes in the developed TPS/FUR composites depending on FUR content as well as thermal pre-treatment. Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and tensile mechanical tests were performed to assess the performance of the developed TPS/FUR composites. It was demonstrated that the ultrasound-assisted manufacturing route allowed TPS/FUR composites with an improved spectrum of properties to be obtained. The highest mechanical stress at break (almost three times higher than for neat TPS) was observed for the TPS + 50 wt.% FUR composite, which also possessed decreased deformability (only ca 10%), reduced thermal resistance at processing temperatures (150 °C) and high shear sensitivity. Thus, the TPS + 30 wt.% FUR and especially the TPS + 10 wt.% FUR composites were recognized as more suitable for thermoplastic processing and the development of TPS-based composites with improved exploitation properties. [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Use of Waste Red Seaweed Furcellaran for Development of Green Thermoplastically Processable Bioplastics.
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  Data: <searchLink fieldCode="AR" term="%22Merijs-Meri%2C+Remo%22">Merijs-Meri, Remo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> remo.merijs-meri@rtu.lv</i><br /><searchLink fieldCode="AR" term="%22Zicāns%2C+Jānis%22">Zicāns, Jānis</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ivanova%2C+Tatjana%22">Ivanova, Tatjana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bitenieks%2C+Juris%22">Bitenieks, Juris</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jefimovs%2C+Pēteris+Patriks%22">Jefimovs, Pēteris Patriks</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bočkovs%2C+Ivans%22">Bočkovs, Ivans</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rībens%2C+Žanis+Edvards%22">Rībens, Žanis Edvards</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bērziņa%2C+Rita%22">Bērziņa, Rita</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bernava%2C+Aina%22">Bernava, Aina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rozentāle%2C+Reina%22">Rozentāle, Reina</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bāliņa%2C+Karina%22">Bāliņa, Karina</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Žaimis%2C+Uldis%22">Žaimis, Uldis</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Apr2026, Vol. 18 Issue 7, p884. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Red+algae%22">Red algae</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrasonic+waves%22">Ultrasonic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradable+materials%22">Biodegradable materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradable+plastics%22">Biodegradable plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Bioplastics are in focus for the development of sustainable materials due to the depletion of fossil resources, generation of solid waste and global climate change. Considering this, the current research is devoted to the valorization of beachcast red seaweed F. lumbricalis for the development of thermoplastically processable bioplastics. The composites have been developed from beachcast red seaweed-derived furcellaran (FUR) and potato-derived thermoplastic starch (TPS) by using an ultrasound-assisted technique. Three different FUR concentrations (10, 30 and 50 wt.%) in relation to potato starch were examined for their thermoplastic processability. Fourier infrared spectroscopy (FTIR) was used to reveal the structural changes in the developed TPS/FUR composites depending on FUR content as well as thermal pre-treatment. Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and tensile mechanical tests were performed to assess the performance of the developed TPS/FUR composites. It was demonstrated that the ultrasound-assisted manufacturing route allowed TPS/FUR composites with an improved spectrum of properties to be obtained. The highest mechanical stress at break (almost three times higher than for neat TPS) was observed for the TPS + 50 wt.% FUR composite, which also possessed decreased deformability (only ca 10%), reduced thermal resistance at processing temperatures (150 °C) and high shear sensitivity. Thus, the TPS + 30 wt.% FUR and especially the TPS + 10 wt.% FUR composites were recognized as more suitable for thermoplastic processing and the development of TPS-based composites with improved exploitation properties. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/polym18070884
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        Text: English
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        PageCount: 13
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      – SubjectFull: Red algae
        Type: general
      – SubjectFull: Ultrasonic waves
        Type: general
      – SubjectFull: Mechanical behavior of materials
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      – SubjectFull: Biodegradable materials
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              Text: Apr2026
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