November 1, 2021 Journal article Open Access

Pablo Ferrero; Olivia A. Attallah; Miguel Ángel Valera; Ivana Aleksic; Muhammad Azeem; Jasmina Nikodinovic-Runic; Margaret Brennan Fournet

JSON Export

{
  "files": [
    {
      "links": {
        "self": "https://zenodo.org/api/files/068d93f5-296d-4ec4-987f-2b4dd56d323c/Rendering_Bio-Inert_Low_Density_Polyethylene_Amena%20%281%29.pdf"
      }, 
      "checksum": "md5:d7906c0c8a11e12dd370da5041b7b191", 
      "bucket": "068d93f5-296d-4ec4-987f-2b4dd56d323c", 
      "key": "Rendering_Bio-Inert_Low_Density_Polyethylene_Amena (1).pdf", 
      "type": "pdf", 
      "size": 1771935
    }
  ], 
  "owners": [
    309828
  ], 
  "doi": "10.21203/rs.3.rs-1016043/v1", 
  "stats": {
    "version_unique_downloads": 43.0, 
    "unique_views": 92.0, 
    "views": 97.0, 
    "version_views": 97.0, 
    "unique_downloads": 43.0, 
    "version_unique_views": 92.0, 
    "volume": 79737075.0, 
    "version_downloads": 45.0, 
    "downloads": 45.0, 
    "version_volume": 79737075.0
  }, 
  "links": {
    "doi": "https://doi.org/10.21203/rs.3.rs-1016043/v1", 
    "latest_html": "https://zenodo.org/record/6259017", 
    "bucket": "https://zenodo.org/api/files/068d93f5-296d-4ec4-987f-2b4dd56d323c", 
    "badge": "https://zenodo.org/badge/doi/10.21203/rs.3.rs-1016043/v1.svg", 
    "html": "https://zenodo.org/record/6259017", 
    "latest": "https://zenodo.org/api/records/6259017"
  }, 
  "created": "2022-02-24T15:06:20.464581+00:00", 
  "updated": "2022-02-25T01:50:11.317104+00:00", 
  "conceptrecid": "6259016", 
  "revision": 2, 
  "id": 6259017, 
  "metadata": {
    "access_right_category": "success", 
    "doi": "10.21203/rs.3.rs-1016043/v1", 
    "description": "<p>An energy efficient high throughput pre-treatment of low density polyethylene (LDPE) using a fast reactive extrusion (REX) assisted oxidation technique followed by bacterial attachment as an indicator for bio-amenability was studied. Silicon dioxide (SiO<sub>2</sub>) was selected as a model oxidizing and catalytic reagent with the REX process demonstrated to be effective both in the presence and absence of the catalyst. Optimized 5-minute duration pretreatment conditions were determined using Box-Behnken design (BBD) with respect to screws speed, operating temperature, and concentration of SiO<sub>2</sub>. The crystallinity index, carbonyl index and weight loss (%) of LDPE were used as the studied responses for BDD. FTIR and DSC spectra of the residual LDPE obtained after pretreatment with the REX assisted oxidation technique showed a significant increase in residual LDPE carbonyl index from 0 to 1.04 and a decrease of LDPE crystallinity index from 29% to 18%. Up to 5-fold molecular weight reductions were also demonstrated using GPC. Optimum LDPE pretreatment with a duration of 5 minutes was obtained at low screw speed (50 rpm), operating temperature of 380-390\u2070C and variable concentration of SiO<sub>2</sub>&nbsp;(0 and 2% (w/w)) indicating that effective pretreatment can occur under noncatalytic and catalysed conditions. Biofilms were successfully formed on pretreated LDPE samples after 14 days of incubation.</p>\n\n<p>Furthermore, the technique proposed in this study is expected to provide a high throughput approach for pretreatment of pervasive recalcitrant PE based plastics to reduce their bio inertness.</p>", 
    "license": {
      "id": "CC-BY-4.0"
    }, 
    "title": "Rendering bio-inert low-density polyethylene amenable for biodegradation via fast high throughput reactive extrusion assisted oxidation", 
    "relations": {
      "version": [
        {
          "count": 1, 
          "index": 0, 
          "parent": {
            "pid_type": "recid", 
            "pid_value": "6259016"
          }, 
          "is_last": true, 
          "last_child": {
            "pid_type": "recid", 
            "pid_value": "6259017"
          }
        }
      ]
    }, 
    "grants": [
      {
        "code": "870292", 
        "links": {
          "self": "https://zenodo.org/api/grants/10.13039/501100000780::870292"
        }, 
        "title": "Bio Innovation of a Circular Economy for Plastics", 
        "acronym": "BioICEP", 
        "program": "H2020", 
        "funder": {
          "doi": "10.13039/501100000780", 
          "acronyms": [], 
          "name": "European Commission", 
          "links": {
            "self": "https://zenodo.org/api/funders/10.13039/501100000780"
          }
        }
      }
    ], 
    "publication_date": "2021-11-01", 
    "creators": [
      {
        "affiliation": "AIMPLAS", 
        "name": "Pablo Ferrero"
      }, 
      {
        "affiliation": "Athlone Institute of Technology", 
        "name": "Olivia A. Attallah"
      }, 
      {
        "affiliation": "AIMPLAS", 
        "name": "Miguel \u00c1ngel Valera"
      }, 
      {
        "affiliation": "University of Belgrade: Univerzitet u Beogradu", 
        "name": "Ivana Aleksic"
      }, 
      {
        "affiliation": "Athlone Institute of Technology", 
        "name": "Muhammad Azeem"
      }, 
      {
        "affiliation": "University of Belgrade: Univerzitet u Beogradu", 
        "name": "Jasmina Nikodinovic-Runic"
      }, 
      {
        "affiliation": "Athlone Institute of Technology", 
        "name": "Margaret Brennan Fournet"
      }
    ], 
    "access_right": "open", 
    "resource_type": {
      "subtype": "article", 
      "type": "publication", 
      "title": "Journal article"
    }
  }
}