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Method for resource utilization of prepreg leftover residues

A technology for corner waste and prepreg, which is applied in recycling technology, plastic recycling, mechanical material recycling, etc., can solve problems such as environmental pollution, harm to human health, and large multi-layer circuit boards, so as to solve environmental pollution problems and realize recycling. The effect of utilization and cost saving

Active Publication Date: 2019-12-31
四川英创力电子科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the production of multi-layer circuit boards is relatively large. If they are not treated effectively and left to be piled up, they will cause greater pollution to the environment and eventually endanger human health.

Method used

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  • Method for resource utilization of prepreg leftover residues
  • Method for resource utilization of prepreg leftover residues
  • Method for resource utilization of prepreg leftover residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: a kind of method for resource utilization of prepreg scraps, such as figure 1 As shown, it includes the following steps:

[0025] S1. Screening and classification: Sorting the semi-solidified corner scraps generated during the production process of printed circuit boards by combining mechanical and manual methods, screening and classifying them into corner scraps with good surface flatness and poor surface flatness;

[0026] S2. Cutting and crushing: cutting and crushing the semi-solidified corner waste with poor surface flatness with a mechanical crusher, and crushing it into particles with a particle size of 1-2mm or flakes with good surface flatness;

[0027] S3. Gelling treatment: the pulverized granules or flake waste are gelled with an adhesive resin glue, the mass fraction of the adhesive in the semi-cured granules or sheets is 30%, and the gelation time 2min;

[0028] S4. Thermocompression molding: perform one-time thermocompression molding on th...

Embodiment 2

[0033] Embodiment 2: a kind of method for resource utilization of prepreg scraps, such as figure 1 As shown, it includes the following steps:

[0034] S1. Screening and classification: Sorting the semi-solidified corner scraps generated during the production process of printed circuit boards by combining mechanical and manual methods, screening and classifying them into corner scraps with good surface flatness and poor surface flatness;

[0035] S2. Cutting and crushing: cutting and crushing the semi-solidified corner waste with poor surface flatness with a mechanical crusher, and crushing it into particles with a particle size of 1-2mm or flakes with good surface flatness;

[0036] S3. Gelling treatment: the crushed granules or flake waste are gelled with an adhesive resin glue, the mass fraction of the adhesive in the semi-cured granules or sheets is 70%, and the gelation time 10min;

[0037] S4. Thermocompression molding: perform one-time thermocompression molding on the ...

Embodiment 3

[0042] Embodiment 3 A method for resource utilization of prepreg corner waste, such as figure 1 As shown, it includes the following steps:

[0043] S1. Screening and classification: Sorting the semi-solidified corner scraps generated during the production process of printed circuit boards by combining mechanical and manual methods, screening and classifying them into corner scraps with good surface flatness and poor surface flatness;

[0044] S2. Cutting and crushing: cutting and crushing the semi-solidified corner waste with poor surface flatness with a mechanical crusher, and crushing it into particles with a particle size of 1-2mm or flakes with good surface flatness;

[0045] S3. Gelling treatment: the pulverized granules or flake waste are gelled with an adhesive resin glue, the mass fraction of the adhesive in the semi-cured granules or sheets is 50%, and the gelation time 7min;

[0046] S4. Thermocompression molding: perform one-time thermocompression molding on the c...

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Abstract

The invention discloses a method for resource utilization of prepreg leftover residues. The method comprises screening and classification, cutting and smashing, gelling processing, thermal press shaping and testing processing. The method disclosed by the invention has the beneficial effects that the prepreg leftover residues are of fixed sources and a huge amount and belong to a typical type of solid waste; through resource processing of the residues, environmental pollution problems can be solved to a great extent; the leftover residues can be recycled; cost expenditures of production enterprises are saved; industrial chain crossing with other industries can be realized; and downstream industrial development can be better promoted.

Description

technical field [0001] The invention belongs to the technical field of energy saving and environmental protection, and in particular relates to a method for resource utilization of prepreg corner waste. Background technique [0002] With the rapid development of science and technology, the industrial production scale of the electronics industry has further expanded, and the demand for various electronic products is increasing. Since the new era of the 21st century, the market demand for multi-layer circuit boards has reached its peak, and many circuit board manufacturers continue to expand production to increase production capacity. [0003] Prepreg, also known as "PP sheet", is one of the main materials for the production of multilayer circuit boards. It is mainly composed of resin and glass fiber cloth reinforcement materials. ), the thin sheet material made by making the resin enter the B stage, which will soften under heat and pressure, and will react and solidify after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/00B29B17/04
CPCB29B17/00B29B17/0036B29B17/0412Y02W30/52Y02W30/62
Inventor 李清华陈梦君艾克华易小霞舒建成齐亚平王蓉
Owner 四川英创力电子科技股份有限公司
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