Preparation method of wood liquefied product spinning solution

Abstract

The invention provides a preparation method of a wood liquefied product spinning solution. The preparation method comprises the following steps of: mixing a solid-state wood biomass material which is difficult to dissolve with a polyhydric alcohol; liquefying a mixture into a solubilized wood material with reaction activity under an acidic catalysis condition; and adding a synthesizing agent to react under a certain condition to generate a spinning solution capable of being drew. According to the preparation method, the defects in a wood fiber material preparation technology are overcome and the utilization rate of the material is improved; the spinning solution is used for spinning a carbon fiber precursor so that the dependence on fossil fuel resources by a carbon fiber industry is relieved, the whole comprehensive utilization performance of wood is improved, and the additional values of the biomass material including the wood are greatly improved. Compared with an existing wood liquefaction technology, the preparation method disclosed by the invention has the characteristics of high liquefaction efficiency, low liquefaction temperature, no toxin and no harm, environmental friendliness, low fusion and spinning temperature range and the like, and spinning is easy and convenient to control.

Description

technical field

[0001] The invention relates to wood liquefaction technology, in particular to a preparation method of wood liquefaction spinning solution. Background technique

[0002] Agricultural and forestry biomass materials represented by wood are derived from photosynthesis and are rich in resources. They are the only natural renewable natural materials among traditional materials. With the depletion of fossil resources, the complex process of refining fossil materials and environmental pollution, biomass resources have gradually become an important substitute. Since wood is an insoluble natural polymer, a certain size greatly limits the application range of wood. Using wood liquefaction technology, wood can be converted into a reactive and fluid liquid in the presence of certain organic matter or catalysts, so that it can be used as a chemical raw material. Through the liquefaction of wood, the liquefied wood is chemically prepared into a spinning solution, and the...

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