Biomass fiber-based three-dimensional porous material and preparation method thereof

A biomass fiber and biomass material technology, applied in the field of biomass fiber-based three-dimensional porous materials and its preparation, can solve problems such as the inability to establish an effective cross-linked network structure, difficulty in controlling the material structure, and poor stability of the material structure, achieving a huge The effect of commercial and social value, low cost and simple equipment

Inactive Publication Date: 2015-03-25
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the material structure involved in the above literature is limited to fibrous natural biomass raw materials, the structure of the obtained material is difficult to control and cannot establish an effective cross-linked network structure, the material structure has poor stability, is not easy to rebound, and the suitable raw material is single, thus limiting Its application performance

Method used

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  • Biomass fiber-based three-dimensional porous material and preparation method thereof
  • Biomass fiber-based three-dimensional porous material and preparation method thereof

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Embodiment 1

[0029] A biomass fiber-based three-dimensional porous material includes biomass fibers, and the biomass fibers are mutually cross-linked and supported to form a three-dimensional network structure. Its preparation method is:

[0030] The first step: using plant biomass material straw as raw material, screening the straw with a diameter of 15 μm and an aspect ratio of 500, and cleaning it;

[0031] The second step: activate the straw obtained after the first step, specifically: soak it in a sodium hydroxide solution with a mass fraction of 2%, heat it in an oil bath at 100°C for 2 hours, and take it out Afterwards, wash repeatedly with deionized water until neutral;

[0032] The third step: use the oxidized starch in the starch as a biological cross-linking agent, prepare an oxidized starch solution with a mass fraction of 0.01%, and the solvent is ethanol, and disperse the treated straw in the oxidized starch solution, using Shanghai Zhenxuan Electromechanical Co., Ltd. Orie...

Embodiment 2

[0035] A biomass fiber-based three-dimensional porous material includes biomass fibers, and the biomass fibers are mutually cross-linked and supported to form a three-dimensional network structure. Its preparation method is:

[0036] The first step: using plant biomass material ramie as raw material, screening ramie fibers with a single fiber diameter of 30 μm and an aspect ratio of 6, and cleaning;

[0037] The second step: activate the ramie treated in the first step, specifically: soak it in a dilute sulfuric acid solution with a mass fraction of 2%, heat it in a water bath and keep it at 50°C for 2 hours, take it out and use a deionized Repeatedly wash with water until neutral, then treat with 0.05% sodium hydroxide solution, and keep it in an oil bath at 120°C for 6 hours, then repeatedly wash with deionized water until neutral;

[0038] The third step: using egg white protein in proteins as a biological cross-linking agent, prepare an egg white solution with a mass frac...

Embodiment 3

[0041]A biomass fiber-based three-dimensional porous material includes biomass fibers, and the biomass fibers are mutually cross-linked and supported to form a three-dimensional network structure. Its preparation method is:

[0042] The first step: using animal biomass material silk as raw material, screening silk with a diameter of 14 μm and an aspect ratio of 500, and cleaning;

[0043] The second step: Activate the silk treated in the first step, specifically: soak it in a dilute sulfuric acid solution with a mass fraction of 2%, heat it in a water bath and keep it at 100°C for 1 hour, take it out and use deionized Rinse with water repeatedly until neutral;

[0044] Step 3: Use pectin in gums as a biological cross-linking agent to prepare a pectin solution with a mass fraction of 20%, and the solvent is ethanol, and disperse the treated silk in the pectin solution, using Shanghai Zhenxuan Electromechanical Co., Ltd. Orientation high-speed beating machine with frequency co...

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Abstract

The invention provides a biomass fiber-based three-dimensional porous material and a preparation method thereof. The biomass fiber-based three-dimensional porous material comprises biomass fibers, wherein the biomass fibers are mutually cross-linked and supported to form a three-dimensional network structure. The preparation method of the biomass fiber-based three-dimensional porous material is characterized by comprising the following steps: purifying the biomass raw materials; activating the purified biomass materials; preparing a biological cross-linking agent solution, and dispersing the biomass materials in the solution through an orientation high-speed pulping method to form uniform dispersion liquid of biomass fibers with draw ratio of 10-30000; and molding the dispersion liquid to obtain the biomass fiber-based three-dimensional porous material. The biomass fiber-based three-dimensional porous material has the advantages of being wide in raw material selectivity, free of pollution, simple in preparation process, low in cost and controllable in structure, and having huge application value in the fields of biomedical application, tissue engineering, energy sources, environment protection and aerospace.

Description

technical field [0001] The invention belongs to the field of biomass fiber porous materials, and in particular relates to a biomass fiber-based three-dimensional porous material and a preparation method thereof. The prepared material can be used in technical fields such as environmental protection materials, tissue engineering, and biomedicine. Background technique [0002] Fiber-based three-dimensional porous materials have broad application prospects in many fields due to their light weight, high porosity, and large specific surface area. At present, the raw materials used to prepare fiber-based three-dimensional porous materials are mainly chemical products, which have defects such as non-renewability and environmental pollution, which limit their applications in the fields of biomaterials, environmental protection, energy, and industrialization. Biomass materials widely exist in natural resources such as cellulose, protein, and polysaccharide macromolecules, and have the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08J3/24C08L97/02C08L3/10C08L89/00C08L5/06C08L97/00C08L1/02C08L93/04C08L1/18C08L5/08C08L7/00
Inventor 丁彬朱婕葛建龙王雪琴斯阳俞建勇
Owner DONGHUA UNIV
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