Process method for regenerating foamed plastic from waste polyester bottles and printed circuit boards

A technology for printed circuit boards and foamed plastics, applied in plastic recycling, bulk chemical production, recycling technology, etc., can solve the problems of high equipment cost, limited use and added amount, etc., and achieve high economic value and cost advantages , Wide application prospects, the effect of low relative density

Inactive Publication Date: 2020-09-25
邓素荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of using non-metallic powders as fillers to prepare building materials or other materials is that the amount of addition is limited, and the addition of non-metallic powders will affect the performance of the material, especially in these non-metallic powders that also contain a certain amount of metal powder and dust, etc. Impurities
The

Method used

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  • Process method for regenerating foamed plastic from waste polyester bottles and printed circuit boards

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Experimental program
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Effect test

Embodiment 1

[0014] A kind of processing method of waste polyester bottle and printed circuit board regenerated foamed plastics, comprises the following steps:

[0015](1) Put the waste printed circuit board powder and the plasticized ionic liquid with 1.5 times the weight of the waste printed circuit board powder in the organic solvent with 0.7 times the weight of the waste printed circuit board powder to heat, and the waste printed circuit board powder increases Under the catalysis of plastic ionic liquid, a degradation reaction occurs, the reactor is evacuated, and then filled with CO 0.4 times the weight of waste printed circuit board powder. 2 Gas, react at 280°C and 30MPa in a supercritical state for 0.8 hours, then cool naturally to room temperature to obtain a solid-liquid mixture; (2) Add epoxy butyl catallate into the reactor, and heat up to 160°C within 2 hours , then add 2.4 times the weight of epoxy butyl catallate to the solid-liquid mixture obtained in step (1), finish addin...

Embodiment 2

[0019] A kind of processing method of waste polyester bottle and printed circuit board regenerated foamed plastics, comprises the following steps:

[0020] (1) Put the waste printed circuit board powder and the plasticized ionic liquid with 1 times the weight of the waste printed circuit board powder in an organic solvent with 0.4 times the weight of the waste printed circuit board powder to heat, and the waste printed circuit board powder increases Under the catalysis of plastic ionic liquid, a degradation reaction occurs, and the reactor is evacuated, and then filled with CO with 0.2 times the weight of waste printed circuit board powder. 2 Gas, react at 260°C and 26MPa in a supercritical state for 0.5 hours, then cool naturally to room temperature to obtain a solid-liquid mixture; (2) Add epoxy butyl catallate into the reactor, and heat up to 160°C within 2 hours , then add 2.2 times the weight of epoxy butyl catallate to the solid-liquid mixture obtained in step (1), finis...

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Abstract

The invention discloses a process method for regenerating foamed plastic from waste polyester bottles and printed circuit boards, which belongs to the technical field of recycled plastics, and the prepared recycled foam plastic has the advantages of small environmental pollution, reduced production cost, improved production efficiency, no need of external heat during curing, strong bonding force,chemically inert property, self-extinguishing property, tough structure and good insulativity, and can be used as a heat-insulating and electric-insulating material. The product has small relative density, is suitable for filling gaps of mechanical parts, can be used as a sandwich product, a shockproof packaging material, a floating material, a sound absorbing material of an airplane and the like,and can also be used as a special casting product.

Description

technical field [0001] The invention belongs to the technical field of recycled plastics, in particular to a process method for recycling foamed plastics from waste polyester bottles and printed circuit boards. Background technique [0002] PCB is the abbreviation of English printed circuit board. Usually, the conductive pattern made of printed circuit, printed component or a combination of the two on the insulating material according to the predetermined design is called a printed circuit. The conductive pattern that provides electrical connections between components on an insulating substrate is called a printed circuit. In this way, the finished board of printed circuit or printed circuit is called printed circuit board, also known as printed board or printed circuit board. Printed circuit boards are important structural components of electrical appliances or electronics manufactured from copper foil substrates. The printed circuit board (PCB), which is the basis of th...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L67/00C08K13/06C08K9/10C08K7/26C08K5/3415C08K5/55C08J11/28C08J11/24C08J11/26C08J11/22C08J9/04C08J7/12
CPCC08J7/12C08J9/0028C08J9/0047C08J9/0061C08J9/0066C08J9/0071C08J9/0095C08J9/04C08J11/22C08J11/24C08J11/26C08J11/28C08J2205/10C08J2363/00C08J2367/00C08J2467/00Y02W30/62Y02P20/54
Inventor 邓素荣
Owner 邓素荣
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