{"id":58080,"date":"2022-02-28T15:30:49","date_gmt":"2022-02-28T14:30:49","guid":{"rendered":"https:\/\/packaging-journal.de\/?p=58080"},"modified":"2022-02-28T16:01:42","modified_gmt":"2022-02-28T15:01:42","slug":"plastic-bags-become-glue","status":"publish","type":"post","link":"https:\/\/packaging-journal.de\/en\/aus-plastiktueten-wird-klebstoff\/","title":{"rendered":"Plastic bags become glue"},"content":{"rendered":"
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Since January 2022, single-use plastic bags with a wall thickness of less than 50 micrometres have been banned in Germany. Thinner bags for fruit and vegetables are still permitted and often end up as waste after use. Californian scientists have found a way to reuse the material: as an adhesive.\u00a0<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Exception of the Plastic bag ban<\/a> are very lightweight plastic carrier bags with a wall thickness of less than 15 micrometres. In 2019, Germans used an average of around 36 of these bags per capita. There are currently Plastic bags offer few incentives for reuse<\/strong>. They end up in the rubbish and are usually incinerated.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Adhesive with strong properties <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Scientists at the University of Berkeley (California, USA) have set themselves the goal of to convert plastic bags and their material - polyethylene (PE) - into something of higher quality in the future<\/strong>. PE itself does not have good adhesive properties. The research team led by John Hartwig (Chair of Organic Chemistry at the University of Berkeley) therefore wanted to find out whether functionalisation with hydroxyl and keto groups would improve the adhesion of the plastic. They chose a ruthenium-based catalyst for this purpose.<\/p>

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The result: a PE connection that retains the original properties of the plastic, but also adheres firmly to metal, for example<\/strong> and can be painted at the same time. Even the introduction of a relatively small amount of functional groups was able to increase the adhesion of the PE by a factor of twenty. At the same time, the modified PE retains its original material properties and would therefore be a Option for numerous bonding applications<\/strong>.<\/p>

The scientists' process is not yet economically viable for industrial use. However, the research results are an important milestone on the way to recycling plastics into sustainable, high-quality products.<\/p>

Source:\u00a0<\/em>Industrieverband Klebstoff e.V.<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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More news on adhesives <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tGraco acquires Valco Melton\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tThe completion of the transaction is expected in the third quarter of 2026.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tHenkel modernises Packaging Competence Centre\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tHenkel has extensively modernised its Packaging Competence Centre in D\u00fcsseldorf to meet the increasing demands of the packaging industry. New machinery and partnerships are intended to foster innovation.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tProcess over material as the decisive factor\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tDiscussion around sustainable packaging traditionally focuses on materials, but a significant portion of emissions arises from processing, such as in gluing, sealing or labelling.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tEfficient complete systems for the packaging industry\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tAn important part of Baumer hhs's trade fair appearance at interpack is the Xmelt complete system for hot melt applications.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tAdhesive systems for every requirement\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tRobatech presents innovative adhesive application systems at interpack 2026.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\tBASF develops recyclable label adhesive for PET bottles\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\tBASF has developed a labelling adhesive that is fully compatible with PET bottle recycling processes. This supports the production of high-quality recyclate and fulfils new EU requirements.\t\t<\/div>\n\t\t\n\t\t\n\t\t\tRead more \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"Despite the ban on plastic bags, thinner bags for fruit and vegetables continue to accumulate as waste. Californian scientists are now continuing to use the material and producing adhesive from it.","protected":false},"author":1,"featured_media":58086,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"__cvm_playback_settings":[],"__cvm_video_id":"","rank_math_description":"D\u00fcnne Plastikt\u00fcten f\u00fcr Obst und\u00a0Gem\u00fcse fallen h\u00e4ufig als M\u00fcll an. Kalifornische Wissenschaftler verwenden das Material nun weiter und stellen daraus Klebstoff her. ","rank_math_focus_keyword":"Klebstoff","rank_math_title":"","_earpaper_enabled":false,"_earpaper_voice_id":"","_earpaper_audio_url":"","_earpaper_audio_id":"","_earpaper_article_id":"","_earpaper_status":"","_earpaper_error":"","_earpaper_duration":0,"_earpaper_generated_at":"","csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[22],"tags":[58757,69,54,38,59142,58821,32],"class_list":["post-58080","post","type-post","status-publish","format-standard","has-post-thumbnail","category-packmittel-und-packstoffe","tag-gesetze-und-verordnungen","tag-klebstoff","tag-kunststoff-und-verbunde","tag-lebensmittel","tag-news-express","tag-obst-und-gemuese","tag-packmittel-und-packstoffe","cs-entry","cs-video-wrap"],"acf":[],"vimeo_video":null,"_links":{"self":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts\/58080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/comments?post=58080"}],"version-history":[{"count":0,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/posts\/58080\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/media\/58086"}],"wp:attachment":[{"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/media?parent=58080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/categories?post=58080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/packaging-journal.de\/en\/wp-json\/wp\/v2\/tags?post=58080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}