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Method of reusing sampling material, edge cutting material and disqualified prepreg and copper-clad plate manufactured by using method

A technology of prepreg and copper clad laminate, applied in the field of copper clad laminate, can solve the problems of backward process equipment, environmental pollution, environmental pollution and so on

Active Publication Date: 2017-03-15
江门市龙兴电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when most manufacturers produce prepregs, due to improper production process control or relatively backward process equipment, it is easy to produce a large number of products that do not meet the production quality requirements (that is, unqualified performance indicators)
At present, it is very difficult to recycle such unqualified products. If such unqualified products cannot be recycled, it will cause waste of materials;
[0004] In addition, most enterprises generally use cutting tools to cut prepreg before producing copper clad laminates, so a large amount of trimmings are produced. These trimmings are not easy to decompose due to adhesives such as epoxy resin, and they are mechanically processed. When the adhesive component is mechanically heated, it is easy to soften and adhere to the surface of the equipment, which will cause a lot of loss to the equipment. There is no good way to deal with the trimmings of the above prepregs. If they are piled up in large quantities, they will easily cause environmental pollution.

Method used

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  • Method of reusing sampling material, edge cutting material and disqualified prepreg and copper-clad plate manufactured by using method
  • Method of reusing sampling material, edge cutting material and disqualified prepreg and copper-clad plate manufactured by using method
  • Method of reusing sampling material, edge cutting material and disqualified prepreg and copper-clad plate manufactured by using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Example 1 Influence of the prepreg combination and its stacking sequence on the performance of copper clad laminates

[0088] (1) Select copper foil, sampling materials of qualified prepregs, trimming materials of qualified prepregs, and pressing plate materials shown in Table 1, and according to the specifications of 1065mm×1265mm, copper foil and pressing plate materials shown in Table 1 are respectively Carry out cutting, put together the sampling material of the prepreg qualified product into the second prepreg, and put together the trimming material of the prepreg qualified product into the fourth prepreg, for subsequent use; wherein, the first prepreg, the second prepreg, the third prepreg, the first prepreg The fourth prepreg, the fifth prepreg, the sixth prepreg and the seventh prepreg all include electronic grade glass fiber cloth with brand specification 7628 and organic resin glue soaked in the surface and inside of the electronic grade glass fiber cloth with ...

Embodiment 2

[0111] Example 2 Influence of Hot Press Forming Process on the Performance of Copper Clad Laminates

[0112] (1) Select copper foil, sampling materials of qualified prepregs, trimming materials of qualified prepregs, and pressing plate materials shown in Table 4, and according to the specifications of 1065mm×1265mm, copper foil and pressing plate materials shown in Table 4 are respectively Carry out cutting, put together the sampling material of the prepreg qualified product into the second prepreg, and put together the trimming material of the prepreg qualified product into the fourth prepreg, for subsequent use; wherein, the first prepreg, the second prepreg, the third prepreg, the first prepreg The fourth prepreg, the fifth prepreg, the sixth prepreg and the seventh prepreg all include electronic grade glass fiber cloth with brand specification 7628 and organic resin glue soaked in the surface and inside of the electronic grade glass fiber cloth with brand specification 7628...

Embodiment 3

[0123] (1) Select copper foil, sampling materials of qualified prepregs, trimming materials of qualified prepregs, and pressing plate materials shown in Table 4, and according to the specifications of 1065mm×1265mm, copper foil and pressing plate materials shown in Table 4 are respectively Carry out cutting, put together the sampling material of the prepreg qualified product into the second prepreg, put together the trimming material of the prepreg qualified product into the fourth prepreg, according to the stacking order of the pressing plate materials in the hot pressing plate set one in Table 2, the obtained pressing plate Materials are sequentially stacked to form hot-pressed plate group eleven, hot-pressed plate group twelve, and hot-pressed plate group thirteen, for standby; copper foil and eight qualified prepregs are stacked to form hot-pressed plate group fourteen, for standby; , the first prepreg, the second prepreg, the third prepreg, the fourth prepreg, the fifth pr...

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Abstract

The invention provides a method of reusing a sampling material, an edge cutting material and disqualified prepreg and a copper-clad plate manufactured by using the method. The copper-clad plate comprises copper foil and a mixed curing layer, wherein the copper foil is placed at least one side face of the mixed curing layer, and the mixed curing layer is formed by sequentially stacking the sampling material and edge cutting material of qualified prepreg and the disqualified prepreg and carrying out hot pressing molding on the materials. The copper-clad plate made of the sampling material, the edge cutting material and the disqualified prepreg is high in flame retardant level, surface resistance and peel strength. The method of reusing the sampling material, the edge cutting material and the disqualified prepreg is low in production cost and simple in process operation and has remarkable social benefits and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of production methods of copper-clad laminates, and in particular relates to a method for reusing sampling materials, trimming materials and unqualified prepregs, and copper-clad laminates manufactured by applying the method. Background technique [0002] At present, the production process of domestic copper clad laminates mainly includes: the preparation of adhesives, the preparation of prepregs, the preparation of laminates and pressing and other main processes. Among them, the main appearance requirements of the prepreg for copper clad laminates are: the cloth surface should be flat, free of oil, stains, foreign impurities or other defects, free of cracks and excessive resin powder, but micro cracks are allowed. The main performance indicators of prepregs for copper clad laminates include resin content, resin flow, and gel time. Generally, the glue content decreases as the thickness of the glass fiber cl...

Claims

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Application Information

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IPC IPC(8): B32B15/08B32B37/06B32B37/10
CPCB32B15/08B32B37/06B32B37/10
Inventor 曾金师李金梅黎忠良何庭玉
Owner 江门市龙兴电子材料有限公司
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