{"id":34640,"date":"2025-03-27T06:29:04","date_gmt":"2025-03-27T05:29:04","guid":{"rendered":"https:\/\/www.co2news.sk\/?p=34640"},"modified":"2025-03-27T06:30:09","modified_gmt":"2025-03-27T05:30:09","slug":"self-compacting-wood-could-give-metal-a-hard-time","status":"publish","type":"post","link":"https:\/\/www.co2news.sk\/en\/2025\/03\/27\/self-compacting-wood-could-give-metal-a-hard-time\/","title":{"rendered":"&quot;Self-compacting&quot; wood could give metal a hard time"},"content":{"rendered":"<p>While <strong>sustainably grown wood<\/strong> can be an economical and environmentally friendly building material, its relatively low tensile strength limits its potential applications. However, this could soon change thanks to a new self-thickening technique for creating super-strong wood. Individual wood fibers are made up mainly of cellulose, along with a binding material known as lignin. This mixture forms the wall of what is essentially a long hollow tube \u2013 the fiber \u2013 that runs lengthwise through a larger piece of wood. The hollow space inside the tube is called the lumen, and it is\u00a0<i>that one<\/i>\u00a0limits the strength of the wood.<\/p>\n<p>It begins by boiling a block of wood in a mixture of sodium hydroxide (lye) and sodium sulfite, which removes some of the lignin. The block is then immersed in a heated mixture of lithium chloride and a solvent known as dimethylacetamide. This causes the cellulose (and remaining lignin) to swell and expand inward to fill the lumen.<\/p>\n<p>In the final step, the treated wood is left to air dry for 10 hours at room temperature. During this time, it shrinks inward evenly on all sides, but retains its original length. <em>(Ben Coxworth, more on <a href=\"https:\/\/newatlas.com\/materials\/self-densified-wood\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">newatlas.com<\/span><\/a>)<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>While sustainably grown wood can be an economical and environmentally friendly building material, its relatively low tensile strength limits its potential applications. However, this could soon change thanks to a new self-thickening technique for creating super-strong wood. Individual wood fibers are made up mainly of cellulose along with a binding material known as lignin. This mixture forms the wall [\u2026]<\/p>","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34640","post","type-post","status-publish","format-standard","hentry","category-znizovanie_co2_cdr_ccs_ccu_dac"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts\/34640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/comments?post=34640"}],"version-history":[{"count":0,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/posts\/34640\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/media?parent=34640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/categories?post=34640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.co2news.sk\/en\/wp-json\/wp\/v2\/tags?post=34640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}