Impregnated high thermal conductivity nanofluid adhesive, preparation method and its application in wood-based panel decoration

Abstract

The invention discloses an impregnation type highly-heat-conducting nano-fluid adhesive. The adhesive comprises, by mass, 1 to 10% of metal nanoparticles, metal oxide nanoparticles or non-metal nanoparticles with a high heat conduction coefficient, 89 to 98.8% of an impregnation type resin adhesive, 0.1 to 0.5% of a surfactant or dispersing agent and 0.1 to 0.5% of an antifoaming agent. The above materials are mixed and then undergo ultrasonic concussion so as to form the impregnation type highly-heat-conducting nano-fluid adhesive. The invention also discloses a preparation method and application of the impregnation type highly-heat-conducting nano-fluid adhesive. The impregnation type highly-heat-conducting nano-fluid adhesive accords with the characteristic that the heat conduction coefficient of a nano-fluid substantially increases. As applied to preparation of artificial board decoration materials, the impregnation type highly-heat-conducting nano-fluid adhesive can be used for impregnating surface paper, wear-resistant paper, decoration paper, covering paper, bottom paper, recombinant decorative veneer, sliced veneer, rotary-cut veneer, fabrics and the like, and the adhesive can reduce predrying temperature for the above decorative materials after impregnation or shorten predrying time; and hot-pressing temperature can be decreased or hot-pressing time can be shortened when the predried impregnated decorative materials are used for decoration of the artificial boards.

Description

technical field [0001] The invention belongs to the field of wood-based panel manufacturing, and in particular relates to an impregnated high-thermal-conductivity nanofluid adhesive, a preparation method and its application in wood-based panel decoration. Background technique [0002] In 2014, my country released the "National Plan for Addressing Climate Change (2014-2020)", which proposed China's main goals and key tasks for addressing climate change before 2020, and submitted China's nationally determined plan to the Secretariat of the United Nations Framework Convention on Climate Change. The contribution document clarifies a series of goals such as that China's carbon dioxide emissions will peak around 2030 and strive to reach the peak as soon as possible, and that carbon dioxide emissions per unit of GDP in 2030 will be reduced by 60%-65% compared with 2005. Of all the measures we can take and are taking to control industrial pollution and mitigate environmental hazards,...

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Problems solved by technology

[0003] At present, the method to improve energy efficiency in the secondary processing of wood-based panels is to add a latent curing agent to the impregnated adhesive. The latent curing agent is generally temperature-sensitive, that is, only when the action temperature reaches a certain critical value. It is chemically inert below the critical value, which determines that the pre-drying of impregnated decorative materials and the pressing of wood-based panels after pre-drying must be carried out at relatively high temperatures, and energy consumption is still high

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