A biomass-based modified phenol-formaldehyde resin and a method for preparing the same

By preparing carbon-based catalysts from the pyrolysis solid-liquid products of Ulva prolifera and regenerating them using low-temperature plasma technology, the problem of short catalyst life was solved, enabling efficient utilization of bio-oil. High-performance biomass-based modified phenolic resins were also prepared, reducing costs and improving the performance of phenolic resins.

CN122404640APending Publication Date: 2026-07-17JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the catalyst life is short and the utilization rate is low in the process of preparing bio-oil by biomass catalytic pyrolysis. In addition, the content of phenolic substances in bio-oil is low and the impurities are complex, resulting in high synthesis cost of phenolic resin and serious waste of resources, making it difficult to achieve efficient replacement of petroleum-based phenol.

Method used

A carbon-based catalyst was prepared by synergistic preparation of solid-liquid products from the pyrolysis of Ulva prolifera. The catalyst surface was modified and the coke was regenerated by low-temperature plasma technology. Combined with an alkaline-catalyzed hydrothermal synthesis method, a bio-oil with high phenol content was prepared for partial substitution of phenol in the synthesis of phenolic resin.

Benefits of technology

This significantly improves the service life of the catalyst and the quality of the bio-oil, reduces the dependence on petroleum-based phenols, and produces high-performance biomass-based modified phenolic resins that meet the requirements of green chemistry and sustainable development.

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Abstract

本发明提供一种生物质基改性酚醛树脂及其制备方法,该方法包括:将条浒苔热解,得到固体生物炭和液体生物油;将生物炭或生物炭与生物油的混合物高温活化,制得碳催化剂;对新鲜碳催化剂或使用后失活的催化剂进行低温等离子体处理,实现表面改性或积炭再生;利用处理后的催化剂催化木质素热解,获得富酚生物油;精制后与苯酚混合,再与甲醛缩聚,得到改性酚醛树脂。本发明实现了生物质全组分高值化利用,通过固液共混和等离子体处理显著提高了催化剂的催化活性与使用寿命,所得生物油酚类含量高、杂质少,合成的酚醛树脂降低了对石油基苯酚的依赖,具有良好的力学性能、热稳定性和环保性。
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