Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends
Lignosulfonate is a cheap material available in large quantities obtained as a byproduct of paper and cellulose. In this work, blends of polypropylene (PP) and sodium lignosulfonate (LGNa) were developed to evaluate the potential use of lignosulfonate as a lightweight, thermal insulation and flame r...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-01-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/3/543 |
| _version_ | 1797408016532766720 |
|---|---|
| author | Mariane Schneider Noriê Finimundi Maria Podzorova Petr Pantyukhov Matheus Poletto |
| author_facet | Mariane Schneider Noriê Finimundi Maria Podzorova Petr Pantyukhov Matheus Poletto |
| author_sort | Mariane Schneider |
| collection | DOAJ |
| description | Lignosulfonate is a cheap material available in large quantities obtained as a byproduct of paper and cellulose. In this work, blends of polypropylene (PP) and sodium lignosulfonate (LGNa) were developed to evaluate the potential use of lignosulfonate as a lightweight, thermal insulation and flame retardant material. The blends were obtained by mixing in a torque rheometer and molded after compression. The blend proprieties were evaluated by physical, morphological, thermal, thermal conductivity, and flammability tests. The measured values were compared with theoretical models. The results indicated that a heterogeneous blend with a higher number of separated domains is formed when the LGNa content increases from 10 to 40 wt%. In addition, the density and thermal conductivity coefficient of the blends studied are not affected by the addition of LGNa. However, when the LGNa content in the blend exceeds 20 wt% the thermal stability and flame retardant proprieties are considerably reduced. The theoretical models based on the rule of mixtures showed a good agreement with the experimental values obtained from blend density, thermal conductivity, and thermal stability. In general, lignosulfonate tested in this work shows potential to be used as a reactive component in polymer blends. |
| first_indexed | 2024-03-09T03:52:13Z |
| format | Article |
| id | doaj.art-26ee51e82e144586b74395da35d0bfb9 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T03:52:13Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-26ee51e82e144586b74395da35d0bfb92023-12-03T14:25:12ZengMDPI AGMaterials1996-19442021-01-0114354310.3390/ma14030543Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate BlendsMariane Schneider0Noriê Finimundi1Maria Podzorova2Petr Pantyukhov3Matheus Poletto4Chemical Engineering, Exact Sciences and Engineering, University of Caxias do Sul (UCS), Caxias do Sul 95070-560, BrazilChemical Engineering, Exact Sciences and Engineering, University of Caxias do Sul (UCS), Caxias do Sul 95070-560, BrazilFaculty of Trade Economics and Commodity Science, Plekhanov Russian University of Economics, 117997 Moscow, RussiaFaculty of Trade Economics and Commodity Science, Plekhanov Russian University of Economics, 117997 Moscow, RussiaPostgraduate Program in Engineering of Processes and Technologies (PGEPROTEC), Exact Sciences and Engineering, University of Caxias do Sul (UCS), Caxias do Sul 95070-560, BrazilLignosulfonate is a cheap material available in large quantities obtained as a byproduct of paper and cellulose. In this work, blends of polypropylene (PP) and sodium lignosulfonate (LGNa) were developed to evaluate the potential use of lignosulfonate as a lightweight, thermal insulation and flame retardant material. The blends were obtained by mixing in a torque rheometer and molded after compression. The blend proprieties were evaluated by physical, morphological, thermal, thermal conductivity, and flammability tests. The measured values were compared with theoretical models. The results indicated that a heterogeneous blend with a higher number of separated domains is formed when the LGNa content increases from 10 to 40 wt%. In addition, the density and thermal conductivity coefficient of the blends studied are not affected by the addition of LGNa. However, when the LGNa content in the blend exceeds 20 wt% the thermal stability and flame retardant proprieties are considerably reduced. The theoretical models based on the rule of mixtures showed a good agreement with the experimental values obtained from blend density, thermal conductivity, and thermal stability. In general, lignosulfonate tested in this work shows potential to be used as a reactive component in polymer blends.https://www.mdpi.com/1996-1944/14/3/543blendspolyolefincharacterization |
| spellingShingle | Mariane Schneider Noriê Finimundi Maria Podzorova Petr Pantyukhov Matheus Poletto Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends Materials blends polyolefin characterization |
| title | Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends |
| title_full | Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends |
| title_fullStr | Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends |
| title_full_unstemmed | Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends |
| title_short | Assessment of Morphological, Physical, Thermal, and Thermal Conductivity Properties of Polypropylene/Lignosulfonate Blends |
| title_sort | assessment of morphological physical thermal and thermal conductivity properties of polypropylene lignosulfonate blends |
| topic | blends polyolefin characterization |
| url | https://www.mdpi.com/1996-1944/14/3/543 |
| work_keys_str_mv | AT marianeschneider assessmentofmorphologicalphysicalthermalandthermalconductivitypropertiesofpolypropylenelignosulfonateblends AT noriefinimundi assessmentofmorphologicalphysicalthermalandthermalconductivitypropertiesofpolypropylenelignosulfonateblends AT mariapodzorova assessmentofmorphologicalphysicalthermalandthermalconductivitypropertiesofpolypropylenelignosulfonateblends AT petrpantyukhov assessmentofmorphologicalphysicalthermalandthermalconductivitypropertiesofpolypropylenelignosulfonateblends AT matheuspoletto assessmentofmorphologicalphysicalthermalandthermalconductivitypropertiesofpolypropylenelignosulfonateblends |