Method for preparing phenol-formaldehyde resins, resin materials and method for preparing resin molding materials
OwnerI-Min TSENG, Wen-Chuan HSU +1inventors
InventorsI-Min TSENG, Wen-Chuan HSU, Wen-Jau LEE
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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.
Claims22
A method for preparing a phenol-formaldehyde resin, comprising the following steps:
- 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.
A method for preparing a resin molding material, comprising the following steps:
- providing a biomass pyrolysis oil extract;
- polymerizing the biomass pyrolysis oil extract to form a stratified solution under an aldehyde, an alcohol and an alkaline catalyst, wherein the biomass pyrolysis oil extract is polymerized at 70-90° C. for 0.5-2 hours;
- diluting an under-layer solution of the stratified solution with an alcohol to form a diluent;
- impregnating a matrix with the diluent;
- and
- drying, pulverizing and molding the matrix.
Dependencies are inferred from the claim text.