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Preparation method of biomass fiberboard based on spherical polymer

A biomass fiber and polymer technology, applied in the direction of polymerization impregnation, manufacturing tools, flat products, etc., can solve the problems of high pressure of fiberboard hot pressing, low production efficiency of fiberboard, hot pressing time effect, etc., to achieve easy compression molding, The effect of improving the efficiency of hot press forming and increasing the contact area

Active Publication Date: 2022-01-11
阜阳大可新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, there are ubiquitous deficiencies in the hot-pressing pressure of fiberboard and the effect of hot-pressing time, resulting in lower production efficiency of fiberboard and greater energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The biomass fibers are selected from wood fibers, preferably eucalyptus fibers.

[0048]A kind of preparation method of the biomass fiberboard based on spherical polymer, concrete preparation method comprises the following steps:

[0049] 1) Weigh 51.6g of diethylenetriamine and place it in a container, cool it in an ice-water bath, and slowly add a mixed solution of 43.0g of methyl acrylate and 100mL of methanol dropwise under the protection of nitrogen. The generated intermediate monomer was transferred to the reactor, methanol was removed under reduced pressure, the temperature was raised to 150°C to continue the reaction under reduced pressure for 4 hours, and the reaction was stopped to obtain a polyamide polymer;

[0050] 2) Take an appropriate amount of the above-mentioned polyamide polymer, dissolve it in deionized water to make 50mL of mother liquor, add 0.5mL of 0.1mol / L silver nitrate aqueous solution dropwise to the mother liquor, and stir while dripping to ...

Embodiment 2

[0055] The biomass fibers are selected from wood fibers, preferably eucalyptus fibers.

[0056] A kind of preparation method of the biomass fiberboard based on spherical polymer, concrete preparation method comprises the following steps:

[0057] 1) Weigh 61.9g of diethylenetriamine and place it in a container, cool it in an ice-water bath, and slowly add a mixed solution of 51.7g of methyl acrylate and 120mL of methanol dropwise under the protection of nitrogen. The generated intermediate monomer was transferred to the reactor, methanol was removed under reduced pressure, the temperature was raised to 156°C and the reaction under reduced pressure was continued for 5 hours, and the reaction was stopped to obtain a polyamide polymer;

[0058] 2) Take an appropriate amount of the above-mentioned polyamide polymer, dissolve it in deionized water to make 65mL of mother liquor, add 0.65mL of 0.15mol / L silver nitrate aqueous solution drop by drop to the mother liquor, and stir while...

Embodiment 3

[0063] The biomass fibers are selected from wood fibers, preferably eucalyptus fibers.

[0064] A kind of preparation method of the biomass fiberboard based on spherical polymer, concrete preparation method comprises the following steps:

[0065] 1) Weigh 82.5g of diethylenetriamine and place it in a container, cool it in an ice-water bath, and slowly add a mixed solution of 68.8g of methyl acrylate and 160mL of methanol dropwise under the protection of nitrogen. The generated intermediate monomer was transferred to the reactor, methanol was removed under reduced pressure, the temperature was raised to 158° C. to continue the reaction under reduced pressure for 6 h, and the reaction was stopped to obtain a polyamide polymer;

[0066] 2) Take an appropriate amount of the above-mentioned polyamide polymer, dissolve it in deionized water to make 80mL of mother liquor, add 0.8mL of 0.18mol / L silver nitrate aqueous solution drop by drop to the mother liquor, and stir while dripping...

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Abstract

The invention discloses a preparation method of a biomass fiberboard based on a spherical polymer, and relates to the technical field of biomass fiberboard processing. The specific preparation method is as follows: firstly, making the polymer into a quasi-spherical structure, then reducing on the surface of the quasi-spherical polymer to generate nano-silver, dispersing the formed composite polymer in an emulsion, and infiltrating the composite polymer into the biomass fibers through vacuum pressurization impregnation, and carrying out hot press molding to obtain the fiberboard. According to the preparation method of the fiberboard provided by the invention, the biomass fibers are treated, so that the hot pressing time and the hot pressing pressure in the hot pressing process are reduced, the purposes of improving the production efficiency of the fiberboard and reducing the energy consumption are achieved, and the obtained fiberboard is relatively excellent in performance data and meets the processing requirements on the current market.

Description

technical field [0001] The invention belongs to the technical field of biomass fiber board processing, and in particular relates to a preparation method of a spherical polymer-based biomass fiber board. Background technique [0002] my country is the largest producer of fiberboard in the world. Fiberboard is widely used in furniture, floor substrates and other fields because of its uniform, fine material, excellent machining and finishing performance. Fiberboard is a man-made thin board made of wood fiber or other vegetable fiber and applied with urea-formaldehyde resin or other suitable adhesives. Now as a new type of environmentally friendly material, it is widely used in high-end shoe materials, automotive interiors, high-end packaging and other fields. Adhesives and / or additives can be applied during the manufacturing process. Fiberboard has the advantages of uniform material, small vertical and horizontal strength difference, not easy to crack, etc., and has a wide ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/12B27N3/04B27N1/00B27K3/34B27K3/08B27K5/04C08J3/12C08L79/02
CPCB27N3/12B27N3/04B27N1/00B27K3/15B27K3/08B27K5/04C08J3/12B27K2200/15C08J2379/02
Inventor 刘池伟陆昌余郭海涛赵红阳吴淳生
Owner 阜阳大可新材料股份有限公司
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