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Shell biolobic material phenolic resin and its preparation method

A technology of phenolic resin and biomass, which is applied in the field of synthetic resin, can solve the problems of high production cost, difficulty in realizing industrialized production, and long time for walnut shell activation treatment, so as to save oil resources, realize large-scale industrialized production, and shorten the process The effect of operating time

Inactive Publication Date: 2007-11-14
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

China Liu Qiming et al. (1994) tried to use peanut shells or papermaking black liquor, Huang Ruzhu, etc. (1995) tried to use masson pine bark, Lin Jin et al. (1996) tried to use larch bark extract to partially replace phenol to prepare phenolic resin, but There are problems that the chemical components in the above-mentioned biomass need to be extracted, filtered and dehydrated, the production cost is high, and it is difficult to realize industrial production
[0006] China Zhang Hongjian et al. (2002) attempted to use the walnut shell of the genus Juglans as a partial substitute for phenol (Chinese invention patent 02113646.3 "a powdery wood adhesive and its preparation method"), and formaldehyde copolymerization to produce walnut shell-phenol-formaldehyde Resin, but there is the shortcoming that the walnut shell activation treatment time is too long (5-80 hours), which limits its further application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 100 kilograms of walnut shells, pulverize it into walnut shell powder below 40 meshes with a pulverizer, add 5 kilograms of furfural to obtain walnut shell active powder; add 210 kilograms of water, 120 kilograms of phenol and 40 kilograms of sodium sulfite successively, at 150 ° C Process 1 hour under the temperature of 100 ℃, obtain walnut shell active liquid; Add 160 kilograms of phenol and 480 kilograms of formaldehyde, react 3 hours at 100 ℃ of temperature, obtain walnut shell biomass phenolic resin, its free phenol content is 0.089%, free aldehyde content It is 0.096%, the gluing process and gluing performance are equivalent to the pure petrochemical raw material phenolic resin, and the gluing strength is above 2.23Mpa.

Embodiment 2

[0025] Get 100 kilograms of rubber bowl shells, other conditions are the same as Example 1, obtain rubber bowl shell biomass phenolic resin, its free phenol content is 0.103%, and free aldehyde content is 0.114%, and its gluing process and gluing performance are the same as those of pure petrochemical raw material phenolic resin. Equivalent, the bonding strength is above 1.81Mpa.

Embodiment 3

[0027] Get 100 kilograms of peanut shells, other conditions are with embodiment 1, obtain peanut shell biomass phenolic resin, its free phenol content is 0.077%, and free aldehyde content is 0.082%, and its gluing process and gluing performance are equivalent to pure petrochemical raw material phenolic resin, The bonding strength is above 1.92Mpa.

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Abstract

The invention discloses a shell-organism phenol resin and its preparation method. Wherein, using smashed shell-organism active powder to replace some phenol or resorcinol; with formaldehyde and copolymerization reaction, one obtains the said product, which can be used in plastic and other industry, has advantages of no industrial secondary pollution, low cost, etc.

Description

technical field [0001] The present invention relates to a kind of synthetic resin, more particularly, the present invention relates to the shell biomass active powder obtained by pulverization and activation treatment, substituted or partially substituted phenol or resorcinol, in the participation of formaldehyde, through copolymerization After the reaction, the shell biomass phenolic resin with the performance equivalent to that of the phenolic resin made from pure petrochemical raw materials is obtained. Meanwhile, the present invention also relates to the preparation method of the shell biomass phenolic resin. Background technique [0002] The phenolic resin used in modern wood adhesives is formed by the reaction of petrochemical raw materials - phenol or resorcinol with formaldehyde. Due to the limitation of petroleum resources, the price of petrochemical products and the production cost of downstream products have been soaring. The trend, especially phenol or resorcino...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/28
Inventor 张宏健凌敏郑志锋
Owner SOUTHWEST FORESTRY UNIVERSITY
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