Use method of lignin in phenolic resin molding compound

A technology of phenolic resin and lignin, which is applied in the field of mixed plastics, can solve the problems of resource waste and environmental pollution, and achieve the effects of small loss, smooth surface and improved plasticity

Inactive Publication Date: 2020-12-29
周静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the lignin cannot be used for high-value utilization, and it is disposed of by incineration, landfill, etc., which not only pollutes the environment, but also wastes resources; at the same time, with the development of cities and new rural construction, more decorative panels are needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for using lignin in phenolic resin molding compound, specifically according to the following steps:

[0038] S1: Preparing the proportioning base liquid, using phenolic resin as the medium, heating the base liquid to a liquid state, and stirring continuously to make the overall temperature of the base liquid uniform, as a binder, pour the prepared base liquid into a corrosion-resistant in the proportioning container;

[0039] S2: Preparation of mixed raw materials. The mixed raw materials include: lignin powder, discarded rubber and plastic bags, sanfei powder granules, talcum powder, urotropine solution, stearic acid powder, among which the discarded rubber and plastic bags are heated To liquid state, heat the lignin powder and stearic acid powder to liquefaction, grind the Sanfei powder particles into powder form, the mass-number ratio between each raw material and binder is: lignin powder 131: binder 95: Waste rubber and plastic bags 96: urotropine 20: talc...

Embodiment 2

[0049] A method for using lignin in phenolic resin molding compound, specifically according to the following steps:

[0050] S1: Prepare the base liquid by using epoxy resin as the medium, heat the base liquid to a liquid state, and keep stirring to make the overall temperature of the base liquid uniform. As an adhesive, pour the prepared base liquid into a durable Corroded proportioning container;

[0051] S2: Preparation of mixed raw materials. The mixed raw materials include: lignin powder, discarded rubber and plastic bags, sanfei powder granules, talcum powder, urotropine solution, stearic acid powder, among which the discarded rubber and plastic bags are heated To a liquid state, heat the lignin powder and stearic acid powder to liquefaction, grind the Sanfei powder particles to a powder state, and the mass-number ratio between each raw material and the binder is: lignin powder 131: binder 92: Discarded rubber and plastic bags 89: urotropine 21: talcum powder 8: Sanfei ...

Embodiment 3

[0061] A method for using lignin in phenolic resin molding compound, specifically according to the following steps:

[0062] S1: Preparing the proportioning base liquid, using acrylic resin adhesive as the medium, heating the base liquid to a liquid state, and stirring continuously to make the overall temperature of the base liquid even, as an adhesive, pour the prepared base liquid into In a corrosion-resistant proportioning container;

[0063] S2: Preparation of mixed raw materials. The mixed raw materials include: lignin powder, discarded rubber and plastic bags, sanfei powder granules, talcum powder, urotropine solution, stearic acid powder, among which the discarded rubber and plastic bags are heated To a liquid state, heat the lignin powder and stearic acid powder to liquefaction, grind the Sanfei powder particles to a powder state, and the mass-number ratio between each raw material and the binder is: lignin powder 122: binder 88: Discarded rubber and plastic bags 85: ...

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Abstract

The invention discloses a use method of lignin in a phenolic resin molding compound. The use method specifically comprises the following operation steps: S1, preparing a proportioning base solution; S2, preparing mixed raw materials; S3, mixing liquefied lignin; S4, mixing talcum powder; S5, mixing heavy calcium carbonate Sanfei powder; S6, mixing liquefied stearic acid; S7, curing a mixed solution; S8, carrying out compression molding; S9, carrying out solid-phase molding; S10, detecting quality. Lignin is added in the high-strength plastic injection molding process, the problem of consumables at present is solved, and the heat resistance of the plastic mold is improved by adding the stearic acid solution; the talcum powder is added into the mold, so that the strength of the mold is improved, and the impact resistance of the mold is improved; by adding the heavy calcium carbonate Sanfei powder into the mold in a mixed manner, the stability of the whole mold can be improved; by designing and adding waste plastic bags and rubber into the plastic mold, the plasticity and high elasticity of the plastic mold are improved, and cyclic utilization of resources is achieved.

Description

technical field [0001] The invention belongs to the technical field of mixed plastics, and in particular relates to a method for using lignin in phenolic resin molding compounds. Background technique [0002] Lignin is one of the most abundant renewable resources on the earth. It exists widely in various plants and forms the basic skeleton of plant cell walls with cellulose and hemicellulose as the main components. It is a kind of secondary metabolism synthesis of plants. Natural organic polymer substances. Lignin is widely distributed and abundant in nature, and it is estimated that up to 150 billion tons of lignin can be produced by plant growth in the world every year. However, most of the lignin cannot be used for high-value utilization, and it is disposed of by incineration, landfill, etc., which not only pollutes the environment, but also wastes resources; at the same time, with the development of cities and new rural construction, more decorative panels are needed ....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/00C08L61/06C08L101/00C08L19/00C08K3/34C08K5/09C08K3/26C08K13/02B29C43/02B29C43/32
CPCB29C43/003B29C43/02B29C43/32C08K2003/265C08L97/005C08L2201/08C08L2205/035C08L61/06C08L101/00C08L19/003C08K3/34C08K5/09C08K3/26C08K13/02
Inventor 周静王孟丽刘苏亭
Owner 周静
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