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

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...

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 difficulty in recycling non-metallic substrates in waste PCBs by pyrolysis is that the products after pyrolysis are difficult to use as fuel due to their low calorific value, and cannot be used as other chemical raw materials. The pyrolysis products will become tertiary waste

Other methods such as ultrasound require special equipment and higher costs

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