Phenol-formaldehyde resin of lignin and biomass oil in use for moulding plastic material, and preparation method

A technology for biomass oil and phenolic resin, applied in the field of phenolic resin and its preparation, can solve the problems of no reports, etc., and achieve the effects of fast reaction speed, increased farmers' income and low price

Inactive Publication Date: 2007-12-26
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research on biomass oil at home and abroad mainly focuses on the calorific value and composition analysis of biomass oil, in order to obtain high-yield and high-calorific value biomass liquefied fuel oil, and there are basically no reports on the application of phenolic resin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]A lignin biomass oil phenolic resin used in molding materials, its molecular weight is 1000-2500, the softening point is 82°C-93°C, for example: 83°C, 85°C, 88°C, 90°C, and the fluidity is 1.2- 7.5cm, such as 2.2cm, 3.5cm, 4.7cm, 5.9cm, 7cm, the polymerization speed is 65-98s, such as: 75s, 80s, 83s, 88s, 92s, 95s, the viscosity is 14-16MPa.s, such as : 15MPa.s, can be made by following method: phenol, lignin biomass oil, aldehyde and acid catalyst are mixed to form reaction system, and the molar ratio of phenol and aldehyde is 1: (0.80-0.87), for example can be selected as : 1: 0.81, 1: 0.82, 1: 0.83, 1: 0.84, 1: 0.85, 1: 0.86, the mass ratio of phenol and lignin biomass oil is 100: (30-70), for example can be selected as: 100 : 35, 100: 40, 100: 45, 100: 50, 100: 54, 100: 60, 100: 65, adjust the Ph value of the above-mentioned reaction system to 1.0-3.0 by changing the addition amount of the acid catalyst, for example, the Ph value is 1.5, 2, 2.5, 2.8, and then heated...

Embodiment 2

[0029] A kind of preparation method for the lignin biomass oil phenolic resin of molding compound, comprises the steps:

[0030] Mix phenol, lignin biomass oil, aldehyde and acid catalyst to form a reaction system, the molar ratio of phenol to aldehyde is 1: (0.80-0.87), for example, it can be selected as: 1: 0.81, 1: 0.82, 1: 0.83, 1: 0.84, 1: 0.85, 1: 0.86, the mass ratio of phenol and lignin biomass oil is 100: (30-70), for example, it can be selected as: 100: 35, 100: 40, 100: 45, 100: 50, 100: 54, 100: 60, 100: 65, adjust the Ph value of the above-mentioned reaction system to 1.0-3.0 by changing the addition amount of the acid catalyst, for example, the Ph value is 1.5, 2, 2.5, 2.8, and the acid catalyst is usually 0.5-3% of the phenol mass, for example, can be selected as: 0.6%, 1%, 1.2%, 1.5%, 1.7%, 2%, 2.2%, 2.4%, 2.6%, 2.9%, and then heated to 75 ° C -85 °C, for example, can be selected as: 78 °C, 80 °C, 82 °C, 84 °C, the heating rate is 0.5-2 °C / min, and the heating...

Embodiment 3

[0035] Add a certain amount of phenol, formaldehyde (molar ratio 1:0.80) and biomass oil (30% of phenol) into the reactor, add 0.5% acid catalyst in the amount of phenol to adjust the pH value of the system to 1.0, slowly heat up to 75 ° C, Stop heating, heat up the system to about 100°C due to the exothermic reaction, boil and reflux in the kettle, wait for the reflux to slow down and keep the system warm for 0.5h, then dehydrate at 0.06MPa until the resin is transparent and discharge. The yield is 65.3%, the softening point is 83°C, the fluidity is 7.3cm, the polymerization speed is 95s, and the viscosity is 14MPa.s.

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Abstract

This invention discloses a method for preparing lignin bio-oil phenolic resin used as molding material. The method comprises: mixing phenol, lignin bio-oil, aldehyde and acid catalyst to obtain a reaction system, adjusting the pH value of the reaction system to 1.0-3.0 by changing the addition amount of the acid catalyst, heating to 75-85 deg.C at 0.5-2 deg.C / min, ending heating, reacting (exothermic reaction), boiling when the temperature is increased to 95-106 deg.C, refluxing, keeping the temperature for 0.5-4.5 h, and vacuum-dehydrating to obtain lignin bio-oil phenolic resin. The method utilizes bio-oil obtained by rapid pyrolysis of lignin to replace phenol in preparing phenolic resin, and molding material with the same performance as that of pure phenolic resin. The method has such advantages as abundant and inexpensive raw material, and is environmentally friendly.

Description

technical field [0001] The invention relates to a phenolic resin and a preparation method thereof, in particular to a lignin biomass oil phenolic resin used for molding materials and a preparation method thereof. Background technique [0002] Lignin is the only non-petroleum resource that can provide renewable aryl compounds in nature, and it is the second most abundant natural polymer in the plant kingdom after cellulose cords. Lignin molecules have many different types of active functional groups, and have the advantages of being renewable, degradable, and non-toxic. Moreover, industrial lignin comes from papermaking black liquor and is low in cost. It is regarded as an excellent green chemical raw material. Its comprehensive utilization much attention. [0003] The tar obtained from pyrolysis of lignin is rich in phenolic compounds, which is mainly caused by the chemical structure of lignin phenylpropane, which has a higher thermal stability. Therefore, commercially va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/32
Inventor 周永红蒋剑春胡立红刘红军
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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