{"id":1460,"date":"2025-09-30T14:26:24","date_gmt":"2025-09-30T12:26:24","guid":{"rendered":"https:\/\/www.spinpet.it\/pet-pe-antiurto\/"},"modified":"2025-12-19T15:11:14","modified_gmt":"2025-12-19T14:11:14","slug":"pet-pe-impact-resistant-recycled-compound","status":"publish","type":"page","link":"https:\/\/www.spinpet.it\/en\/pet-pe-impact-resistant-recycled-compound\/","title":{"rendered":"Impact-Resistant PET\u2013PE Recycled Compound"},"content":{"rendered":"

[vc_row full_width=”stretch_row” css=”.vc_custom_1759235039006{padding-top: 80px !important;background-image: url(https:\/\/www.spinpet.it\/wp-content\/uploads\/2025\/09\/Header-PE.webp?id=553) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}” el_id=”top” min_height=”600px”][vc_column width=”2\/3″][vc_custom_heading text=”Impact-Resistant PET\u2013PE Recycled Compound” font_container=”tag:p|text_align:left|color:%23FFFFFF” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:700%20bold%20regular%3A700%3Anormal” css_animation=”left-to-right” css=”.vc_custom_1766136558287{margin-top: 35px !important;}”][vc_custom_heading text=”SPINPET\u2019s first project and the origin of our name” font_container=”tag:h1|text_align:left|color:%23FFFFFF” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css_animation=”left-to-right” css=”.vc_custom_1766134748678{margin-top: 35px !important;}”][vc_column_text css_animation=”left-to-right” css=”” el_class=”line-height-p color-white”]At a time when environmental sustainability was not yet central to the public debate, we took a complex, seemingly unrecyclable bilayer<\/strong> and transformed it into a homogeneous, impact-resistant compound, ready for industrial processing.
\nThis was achieved through reactive compatibilizers, molecular regrading and a strong problem-solving approach<\/strong>.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][\/vc_column][\/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1759224238323{background-color: #133B5B !important;}”][vc_column][vc_single_image image=”1473″ img_size=”full” alignment=”center” css_animation=”fadeIn” css=””][vc_column_text css_animation=”fadeIn” css=”” el_class=”box-in-image”]PET\u2013PE multilayer recycling compound developed by SPINPET – Valorization of post-consumer bilayer packaging commonly used for food trays.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1759235869110{background-color: #133B5B !important;}”][vc_column width=”1\/2″][vc_custom_heading text=”How we transformed a complex waste stream into a functional material: a concrete case of advanced recycling, targeted upcycling and applied innovation.” font_container=”tag:h2|text_align:left|color:%23FFFFFF” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css_animation=”left-to-right” css=””][\/vc_column][vc_column width=”1\/2″][vc_column_text css_animation=”right-to-left” css=”” el_class=”color-white”]From formulation to market<\/strong><\/p>\n

Post-consumer bilayer packaging \u2014 especially PET\/PE-based structures commonly used for food trays \u2014 represents a material that is extremely difficult to recycle and often considered waste with no future.<\/p>\n

SPINPET<\/a> transformed this complex waste into a functional, patented material, processable at industrial scale<\/strong> for applications such as thermoformable cladding for vertical surfaces<\/strong> in commercial environments, particularly within the retail sector.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1759235879994{background-color: #133B5B !important;}”][vc_column][vc_single_image image=”1462″ img_size=”full” alignment=”center” css_animation=”fadeIn” css=”” el_id=”gif-vaschetta”][vc_empty_space height=”100px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”The problem:<\/mark>
\nPET\/PE\/EVA, a challenging combination.” font_container=”tag:h2|text_align:left|color:%23133B5B” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css_animation=”left-to-right” css=”” el_class=”marked-title”][vc_column_text css_animation=”left-to-right” css=””]Post-consumer (and post-industrial) plastics often contain multilayer films, where:[\/vc_column_text][vc_row_inner css=”.vc_custom_1759234268066{margin-bottom: 35px !important;}” el_class=”colonne-bordate”][vc_column_inner width=”1\/3″][vc_single_image image=”1463″ img_size=”full” alignment=”center” css_animation=”bounceIn” css=””][vc_column_text css_animation=”fadeIn” css=””]<\/p>\n

PET<\/strong><\/p>\n

provides mechanical strength and gas barrier properties<\/p>\n

[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/3″][vc_single_image image=”1464″ img_size=”full” alignment=”center” css_animation=”bounceIn” css=””][vc_column_text css_animation=”fadeIn” css=””]<\/p>\n

PE<\/strong><\/p>\n

ensures flexibility and sealability<\/p>\n

[\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/3″][vc_single_image image=”1465″ img_size=”full” alignment=”center” css_animation=”bounceIn” css=””][vc_column_text css_animation=”fadeIn” css=””]<\/p>\n

EVA<\/strong><\/p>\n

s frequently present as a tie layer or adhesive<\/p>\n

[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css_animation=”left-to-right” css=”” el_class=”line-height-p”]These polymers are chemically incompatible<\/strong>. In addition, the presence of adhesives complicates every recycling step, resulting in materials that are non-homogeneous, unstable and mechanically weak.[\/vc_column_text][vc_empty_space height=”70px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”The technical challenge:<\/mark>
\ncompatibilization and molecular regrading.” font_container=”tag:h2|text_align:left|color:%23133B5B” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css_animation=”left-to-right” css=”” el_class=”marked-title”][vc_column_text css_animation=”left-to-right” css=”” el_class=”line-height-p”]To address these issues and obtain an Impact-Resistant PET\u2013PE Recycled Compound, SPINPET developed a twofold technical strategy<\/strong>:<\/p>\n

    \n
  1. Compatibilization<\/strong> of immiscible polymer phases.<\/li>\n
  2. Molecular regrading<\/strong> of PET to recover properties lost along the recycling chain.<\/li>\n<\/ol>\n

    [\/vc_column_text][vc_empty_space height=”30px”][\/vc_column][\/vc_row][vc_row equal_height=”yes” content_placement=”middle”][vc_column width=”1\/2″][vc_single_image image=”1469″ img_size=”full” css_animation=”fadeIn” css=”.vc_custom_1765790142277{margin-bottom: 8px !important;}”][vc_column_text css_animation=”top-to-bottom” css=””]SEM of a Non-compatibilized PET-PE<\/small>[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”1468″ img_size=”full” css_animation=”fadeIn” css=”.vc_custom_1765790151343{margin-bottom: 8px !important;}”][vc_column_text css_animation=”top-to-bottom” css=””]SEM of a Compatibilized PET-PE<\/small>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=”100px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”The results:<\/mark>
    \na patented, processable, impact-resistant material.” font_container=”tag:h2|text_align:left|color:%23133B5B” google_fonts=”font_family:Montserrat%3Aregular%2C700|font_style:400%20regular%3A400%3Anormal” css_animation=”left-to-right” css=”” el_class=”marked-title”][vc_column_text css_animation=”left-to-right” css=”” el_class=”line-height-p”]The final formulation resulted in a flat-die extrudable compound featuring:<\/p>\n