Nanometer copper oxide in-situ reduction wood composite material and preparation method thereof

Abstract

The invention discloses a nanometer copper oxide in-situ reduction wood composite material and a preparation method thereof. The nanometer copper oxide in-situ reduction wood composite material is made of five components, and the components include, by mass, 40%-50% of Chinese pennisetum micro powder, 20%-30% of wheat straw middlings, 10%-20% of reed fiber, 10%-15% of nanometer copper oxide powderand 0.5%-3% of polyethylene glycol 400. The preparation method comprises eight steps including preparation of the Chinese pennisetum micro powder, preparation of the wheat straw middlings, preparation of the reed fiber, matching, preparation of wood alloy, material mixing, thermal compression moulding forming and subzero treatment. According to the preparation method, material forming theories ofthe interdisciplines including powder metallurgy and powder engineering, composite material and engineering, wood science and technology and the like are comprehensively applied, and the wood composite material forming technology and method are innovated.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a nano-copper oxide in-situ reduction wood composite material and a preparation method thereof. Background technique [0002] From the adoption of the "Framework Convention on Climate Change" at the 1st United Nations Conference on Environment and Development in Rio de Janeiro, Brazil in 1992, to the adoption of the "Paris Agreement" at the 21st Global Climate Conference in Paris, France, in 2015 to make arrangements for global action on climate change after 2020, and then By 2016, China and the United States ratified the Paris Agreement at the G20 Summit in Hangzhou, China. While "building an innovative, dynamic, interconnected, and inclusive world economy", it left endless thinking and heavy burdens for resource, environment, and material science and technology workers. On the one hand, the development and plunder of forests, oil and mineral resources by human beings ha...

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Problems solved by technology

For example, as a typical representative of biomass engineering materials, wood-based panels still have environmental protection problems when used as furniture / building materials. They do not have the beautiful texture and natural color of natural wood, and their weather resistance needs to be improved; when used as mechanical engineering materials, their mechanical properties are low. Insufficient hydrophobic function, poor heat resistance, etc.