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Method for preparing novel phenolic resin base composite material

A technology of phenolic resin and composite materials, which is applied in the field of building materials, can solve the problems of limited application and promotion, poor hardness and mechanical strength and impact resistance of composite materials, and achieve the effect of improving hardness

Active Publication Date: 2015-06-24
NANTONG DEMING PLASTIC NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patented process is simple and easy to implement, but the hardness and mechanical strength (especially the impact resistance) of the composite material prepared by it are not very good, which limits its application and promotion

Method used

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  • Method for preparing novel phenolic resin base composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of phenolic resin-based composite material, the steps are as follows:

[0027] (1) Wash the shells with deionized water, remove the surface cuticle, and dry them. After cooling naturally to room temperature, the dried shells are obtained. The dried shells are soaked in a 5% sodium hydroxide solution by mass fraction. After 2 days, Take it out, wash it with deionized water, dry it in a vacuum oven at 80°C for 2 hours, put it into a grinder and grind it for 4 hours to get shell powder;

[0028] (2) dissolving the silane coupling agent in acetone to obtain a silane coupling agent solution, adding the shell powder obtained in step (1) into the silane coupling agent solution and stirring for 10 minutes, then moving into an ultrasonic container for ultrasonic treatment for 40 minutes to obtain the improved Sexual shell powder, wherein, the weight ratio of shell powder, silane coupling agent, acetone is 15:1:100;

[0029] (3) Calcium sulfate whiskers are ...

Embodiment 2

[0032] A preparation method of phenolic resin-based composite material, the steps are as follows:

[0033] (1) Wash the shells with deionized water, remove the surface cuticle, and dry them. After cooling naturally to room temperature, the dried shells are obtained. The dried shells are soaked in a 5% sodium hydroxide solution by mass fraction. After 2 days, Take it out, wash it with deionized water, dry it in a vacuum oven at 80°C for 2 hours, put it into a grinder and grind it for 4 hours to get shell powder;

[0034] (2) dissolving the silane coupling agent in acetone to obtain a silane coupling agent solution, adding the shell powder obtained in step (1) into the silane coupling agent solution and stirring for 10 minutes, then moving into an ultrasonic container for ultrasonic treatment for 40 minutes to obtain the improved Sexual shell powder, wherein, the weight ratio of shell powder, silane coupling agent, acetone is 15:1:100;

[0035] (3) Calcium sulfate whiskers are ...

Embodiment 3

[0038] A preparation method of phenolic resin-based composite material, the steps are as follows:

[0039] (1) Wash the shells with deionized water, remove the surface cuticle, and dry them. After cooling naturally to room temperature, the dried shells are obtained. The dried shells are soaked in a 5% sodium hydroxide solution by mass fraction. After 2 days, Take it out, wash it with deionized water, dry it in a vacuum oven at 80°C for 2 hours, put it into a grinder and grind it for 4 hours to get shell powder;

[0040] (2) dissolving the silane coupling agent in acetone to obtain a silane coupling agent solution, adding the shell powder obtained in step (1) into the silane coupling agent solution and stirring for 10 minutes, then moving into an ultrasonic container for ultrasonic treatment for 40 minutes to obtain the improved Sexual shell powder, wherein, the weight ratio of shell powder, silane coupling agent, acetone is 15:1:100;

[0041] (3) Calcium sulfate whiskers are ...

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Abstract

The invention discloses a method for preparing a novel phenolic resin base composite material. The method comprises the following steps: (1) washing and drying a shell, cooling to obtain the dried shell, immersing the dried shell in a sodium hydroxide solution, taking out, washing, drying and grinding to obtain the shell powder; (2) adding the shell powder into a silane coupling agent solution, stirring and performing ultrasonic treatment to obtain the modified shell powder; (3) compounding a calcium sulfate crystal whisker into a suspension slurry, stirring and adding sodium stearate, continuously stirring, taking out, washing, filtering and drying the filter cake to obtain the modified calcium sulfate crystal whisker; (4) adding the phenolic resin, the modified shell powder and the modified calcium sulfate crystal whisker into a stirring kettle, stirring, drying to constant weight, and cooling to obtain a mixed material; and (5) putting the mixed material into a mould, putting the mould in a thermocompressor, performing decompression and degassing after prepressing, performing hot-pressing, baking and cooling to obtain the composite material. The composite material prepared by the invention is good in hardness and mechanical property.

Description

Technical field: [0001] The invention relates to a building material, in particular to a preparation method of a phenolic resin-based composite material. Background technique: [0002] Phenolic resin, commonly known as bakelite, was invented in 1872 and put into industrial production in 1909. It is the oldest plastic and one of the most important thermosetting plastics in the world. Bakelites can generally be divided into non-laminated phenolic plastics and laminated phenolic plastics, and non-laminated phenolic plastics can be divided into cast phenolic plastics and pressed phenolic plastics. Because of its excellent heat resistance and good cost performance, phenolic plastics still have advantages unmatched by other general-purpose plastics, and are widely used as electrical insulation materials, furniture parts, daily necessities, handicrafts, building materials, etc. [0003] For example, the publication number is CN1123599C, the publication date is 2003.10.08, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K9/06C08K9/02C08K3/26C08K9/04C08K7/08
CPCB29C43/58B29C2043/5808B29C2043/5816C08K3/26C08K3/30C08K5/098C08K7/08C08K9/02C08K9/04C08K9/06C08K13/06C08K2003/265C08K2003/3045C08L2203/30C08L61/06
Inventor 董芬芳
Owner NANTONG DEMING PLASTIC NEW MATERIALS
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