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Method for preparing phenol-formaldehyde resins, resin materials and method for preparing resin molding materials

A phenolic resin and phenolic technology, applied in the field of preparation of phenolic resin, can solve the problems of endangering the living environment of human beings, warming, limited oil reserves, etc., and achieve the effects of reducing carbon dioxide emissions, slowing down global warming, and reducing dependence

Active Publication Date: 2015-07-22
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the limited reserves of oil and the large amount of carbon dioxide (CO2) emitted during processing and use 2 ) greenhouse gases, causing global warming, and endangering the living environment of human beings in the future

Method used

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  • Method for preparing phenol-formaldehyde resins, resin materials and method for preparing resin molding materials
  • Method for preparing phenol-formaldehyde resins, resin materials and method for preparing resin molding materials
  • Method for preparing phenol-formaldehyde resins, resin materials and method for preparing resin molding materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] [Example 1] Preparation I of resin molding material of the present invention

[0034] First, get 525 grams of cedar pyrolysis oil (this cedar pyrolysis oil can refer to Chih-Chiang Chang, et al., "Fast Pyrolysis of Sawdust in a Bubbling Fluidized Bed to Produce Bio-oil", The 13th Asia Pacific Confederation of Chemical Engineering Congress, October 5-8, 2010, produced in Taipei) adding 420 grams of ethyl acetate for extraction. The above mixed solution was first filtered, and the obtained filtrate was left to separate phases with a separatory funnel. Next, take 581 grams of the solvent phase and add 418 grams of water for washing. After static phase separation, 470 grams of the hydrophobic phase was taken, and 471 grams of 5% sodium bicarbonate was added to adjust its pH to about 7.7. The above-mentioned neutralized solution was left to stand for phase separation, and the hydrophobic phase was evaporated by a rotary evaporator to obtain a phenolic compound sample. The...

Embodiment 2

[0048] [Example 2] Preparation II of the resin molding material of the present invention

[0049] First, get 479 grams of cedar pyrolysis oil and add 48 grams of ethyl acetate and 105 grams of phenol (cedar pyrolysis oil / ethyl acetate=1 / 0.1, biomass pyrolysis oil / phenol=1 / 0.22 ) for extraction, and after the extraction mixture was filtered, the resulting filtrate was allowed to stand for stratification with a separatory funnel. Next, take 435.5 grams of the solvent phase and add 357.34 grams of water to wash it with water. After statically separating the phases, 309 grams of the hydrophobic phase was added to 412 grams of 5% sodium bicarbonate to adjust its pH to about 7.3. The above-mentioned neutralized solution was left to stand for phase separation, and the hydrophobic phase was evaporated with a rotary evaporator to obtain the first phenolic mixture sample. Take the first phenolic mixture sample and add 3 times of MIBK for dilution, and analyze its composition by GC. G...

Embodiment 3

[0065] [Example 3] Reactive phenol content in the extract of the present invention (extractant is ethyl acetate)

[0066] The standard method for testing the content of reactive phenols is to add formalin to the aqueous solution of the phenolic substance sample, and make the phenolic substance and formaldehyde undergo polycondensation reaction in a strong acid environment to form a polymerized solid substance and precipitate it. The final product was dried in an oven at 103±2°C until constant weight. Finally, the reactive phenol content was calculated from the sample weight taken and the final dry weight.

[0067] The stock solution of cedar pyrolysis oil was separated by standing, and the reactive phenol content of the oil phase was tested to be 58%.

[0068] The procedure for separating phenolic compounds from cedar wood pyrolysis oil is the same as in Example 1, including extraction, water washing, neutralization and evaporation. The extractant is ethyl acetate, cedar pyr...

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Abstract

A method for preparing a phenol-formaldehyde resin is provided. The method includes extracting a biomass pyrolysis oil to obtain a first phenolic mixture, and polymerizing the first phenolic mixture to form a phenol-formaldehyde resin solution under an aldehyde, an alcohol and an alkaline catalyst. The disclosure also provides a resin material prepared from the phenol-formaldehyde resin. The disclosure further provides a method for preparing a resin molding material.

Description

technical field [0001] The invention relates to a method for preparing phenolic resin, in particular to a method for preparing phenolic resin from biomass pyrolysis oil. Background technique [0002] Due to the limited reserves of oil and the large amount of carbon dioxide (CO2) emitted during processing and use 2 ) greenhouse gases, causing global warming and endangering the living environment of human beings in the future. Therefore, the search for oil alternative resources is a topic of common concern to all countries in the world. Advanced countries such as Europe and the United States have strengthened research and development to replace petrochemical raw materials with renewable resources, and are planning to regulate that future petrochemical processing products must contain a considerable proportion of renewable materials. This shows that there is an urgent need to develop renewable materials and establish related processing technologies. Maintain the sustainable d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/04C08L61/06C08L97/02C08J5/24
CPCC08J5/24C08G8/08C08L97/02C08J2361/06C08L61/06C08G8/24C08J5/245
Inventor 曾益民徐闻全李文昭
Owner IND TECH RES INST
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