Reutilization method of prepreg edge trimming material

A technology of prepreg and trimming material, which is applied in recycling technology, application, household components, etc., can solve the problems of a large number of trimming materials, environmental pollution equipment loss, etc., and achieve the effect of reducing cost expenditure and controlling environmental pollution problems.

Active Publication Date: 2014-05-07
GOLDENMAX TECH HANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of a large amount of trimmings, environmental pollution, and large equipment loss in the existing process of preparing prepregs, and to provide a method for recycling and reusing prepreg trimmings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Cryogenic treatment

[0027] Put the trimmings of the prepreg into an airtight container, pass through liquid nitrogen, the mass ratio of liquid nitrogen to the trimmings is 1:1.5, and control the temperature of the liquid nitrogen at -170°C (±5°C). If the temperature rises Continue to feed liquid nitrogen, and the treatment time is 5 minutes to 10 minutes.

[0028] Step 2: Shred

[0029] The trimmed material processed in the above steps is quickly transferred to the crushing equipment, the crushed particle size is 0.1mm ~ 10mm, brushed through a 50-mesh screen, and then the impurities in the crushed material are removed by magnetic separation equipment to obtain the material.

[0030] Step 3: Mix and beat

[0031] The material obtained above is added to recycled industrial waste paper pulp, and the mass ratio of material to industrial waste paper pulp is 1:30. After mixing evenly, it is sent to the beater, and the pulp is beaten to a degree of beating of 40°...

Embodiment 2

[0034] Step 1: Cryogenic treatment

[0035] Put the trimmings of the prepreg into an airtight container, pass through liquid nitrogen, the mass ratio of liquid nitrogen to the trimmings is 1:1.5, control the temperature of the liquid nitrogen at -150°C (±5°C), if the temperature rises Continue to feed liquid nitrogen, and the processing time is 3 minutes to 5 minutes.

[0036] Step 2: Shred

[0037] The trimmings processed in the above steps are quickly transferred to the crushing equipment, and the crushed particle size is 0.1 mm to 10.0 mm. The metal impurities in the crushed materials are removed by a magnetic separation device to obtain materials.

[0038] Step 3: Mix and press

[0039] Mix the material obtained above with wood chips of the same particle size ratio in proportion to the mass, and then add a thermosetting adhesive. The mass ratio of material: wood chips: adhesive is 1:2:0.2. In the mold, it is sent to the pressing equipment for heating and pressing, the p...

Embodiment 3

[0042] Step 1: Cryogenic treatment

[0043] Put the trimmings of the prepreg into an airtight container, pass through liquid nitrogen, the mass ratio of liquid nitrogen to the trimmings is 1:2.0, and control the processing temperature at -175°C (±5°C). Liquid nitrogen was introduced to ensure the treatment temperature, and the treatment time was 3min to 5min.

[0044] Step 2: Shred

[0045] The trimmings processed in the above steps are quickly transferred to the crushing equipment, the crushed particle size is 0.01mm-0.1mm, screened with a 200-mesh screen, and the metal impurities in the crushed material are removed through a magnetic separation device to obtain the material.

[0046] Step 3: Filling and pressing

[0047] Thoroughly mix the above materials with fillers (silicon dioxide, aluminum hydroxide and barium sulfate) with the same particle size ratio, the mass ratio of the materials to the total amount of fillers is 1:20, add to the glue used In the adhesive, the l...

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PUM

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Abstract

The invention discloses a reutilization method of a prepreg edge trimming material, which comprises the step of remanufacturing a product from raw materials according to needs. The raw material comprises a material prepared by a recovery treatment method. The recovery treatment method comprises the following steps of carrying out cryogenic treatment on the prepreg edge trimming material, and pulverizing to obtain the material. The product is a stone product, and the raw material also comprises an ore material. The remanufacturing technique comprises one or more of molding, casting, filling, cementing and press fitting. The mass ratio of the material to the ore material is (1:8)-(1:50). The method effectively controls the environmental pollution, achieves the reutilization of industrial leftover waste, saves the cost expenditure of a production enterprise, can form industrial chain crossover with other industries, and better promotes the development of downstream industries.

Description

[0001] This application is a divisional application of the patent application with application number 201210019968.X, application date: January 21, 2012, and the invention title is "a method for recycling and reusing prepreg trimmings". technical field [0002] The invention relates to a method for reusing prepreg trimmings. Background technique [0003] With the rapid development of science and technology, the scale of industrial production in the electronics industry continues to expand. Especially in recent years, with the rapid development of the epoxy resin industry and the increasing market demand, it has driven the diversification of its downstream industries. The laminate industry has a new peak period of development, and many laminate manufacturers continue to expand production. Increase production capacity. [0004] At present, the production process of domestic laminates mainly includes: the preparation of adhesives, the preparation of prepregs, the preparation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/06B02C23/08H01B13/14H01B13/24D21B1/32D21C5/02B27N3/08
CPCY02W30/64
Inventor 胡瑞平
Owner GOLDENMAX TECH HANGZHOU CO LTD
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