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Regeneration method for phenolic aldehyde Bakelite plates

A bakelite and phenolic technology, applied in chemical instruments and methods, lamination devices, lamination auxiliary operations, etc., can solve problems such as environmental hazards and human hazards, and achieve the effects of reducing environmental pollution and reducing production costs

Inactive Publication Date: 2012-06-13
清远市康美特新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Normally, after the phenolic bakelite board in electronic products is used, it becomes garbage and is discarded. Since phenolic formaldehyde is the foam of phenol and formaldehyde, nearly 20% of the raw material in phenolic formaldehyde is formaldehyde, which is extremely harmful to the human body. Therefore, Discarded phenolic bakelite boards will cause great harm to the environment. At this stage, there is no effective means of recycling waste phenolic bakelite boards in electronic products.

Method used

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  • Regeneration method for phenolic aldehyde Bakelite plates
  • Regeneration method for phenolic aldehyde Bakelite plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The regeneration method of phenolic bakelite board comprises the steps:

[0052] Step A, grinding the surface of the discarded phenolic bakelite to make a substrate;

[0053] A1. Use an abrasive belt grinder to grind the upper and lower surfaces of the scrapped phenolic bakelite board. Grind the upper and lower surfaces to remove one-twentieth of the total thickness. For example, if the thickness of the finished board is required to be 10cm, the thickness of the ground substrate is 9cm. , that is, grind 0.5mm on both sides; when using a belt grinder for grinding, ensure that both sides are ground and that the plate will not be warped;

[0054] A2. Use an air gun to blow off the debris in the hole;

[0055] A3. Place the ground phenolic bakelite board on a horizontal platform so that the ambient temperature is 21-27°C and the humidity is 50-60°C; the best ambient temperature is 24°C and the best humidity is 55°C.

[0056] Step B, modulation phenolic resin glue and phen...

Embodiment 2

[0082] The difference from Example 1 is:

[0083] Step C is: use a vacuum plugging machine or an ordinary nylon mesh plugging machine to plug the phenolic resin glue made in step B into the holes on the surface of the substrate. When using a nylon mesh plugging machine, it can be used as a blocking mesh plug hole Or use aluminum sheets as mesh plug holes.

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Abstract

The invention discloses a regeneration method for phenolic aldehyde Bakelite plates, which sequentially comprises steps of manufacturing base plates, modulating phenolic aldehyde resin adhesive and phenolic aldehyde resin semi-solidification powder, plugging holes, hot-pressing, grinding into the required thickness and the like. Thus, waste phenolic aldehyde Bakelite plates can be processed into new available phenolic aldehyde Bakelite plates. The regeneration method can regenerate and recycle waste phenolic aldehyde Bakelite plates presently used in markets, thereby meeting original using requirements, reducing production cost and simultaneously reducing environment pollution.

Description

[0001] technical field [0002] The invention relates to a recycling method for waste electrical insulation materials, in particular to a regeneration method for phenolic bakelite boards. [0003] Background technique [0004] Phenolic bakelite is an insulating board commonly used in electronic products. It has the characteristics of non-absorbent, good insulation performance, high temperature resistance, and high strength, and is widely used. [0005] Normally, after the phenolic bakelite board in electronic products is used, it becomes garbage and is discarded. Since phenolic formaldehyde is the foam of phenol and formaldehyde, nearly 20% of the raw material in phenolic formaldehyde is formaldehyde, which is extremely harmful to the human body. Therefore, Discarded phenolic bakelite boards will cause great harm to the environment. At this stage, there is no effective means of recycling waste phenolic bakelite boards in electronic products. [0006] Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B38/18
Inventor 肖娟娟
Owner 清远市康美特新型材料科技有限公司