Processing technology for producing composite board by utilizing waste PET bottle flakes

Abstract

The invention discloses a processing technology for producing a composite board by utilizing waste PET bottle flakes. The composite board produced by utilizing the waste PET bottle flakes comprises afirst plastic board layer, a second plastic board layer and a steel wire mesh cushion layer located between the first plastic board layer and the second plastic board layer; the steel wire mesh cushion layer is additionally arranged between the first plastic board layer and the second plastic board layer, so that the two sides of the steel wire mesh cushion layer are embedded into the first plastic board layer and the second plastic board layer correspondingly, then the composite board formed by the first plastic board layer and the second plastic board layer is more compact in bonding, the bearing capacity of the composite board is improved, and the service life of the plastic composite board is greatly prolonged; and glass fiber, bismuth selenide layered nano materials, zirconium selenide layered nano materials, niobium disulfide layered nano materials, silicon nanowires and silver nanowires are added into the preparation process of the first plastic board layer and second plastic board layer, so that the mechanical strength of the plastic composite board is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of molded composite boards, in particular to a processing technology for producing composite boards by using waste PET bottle flakes. Background technique [0002] Plastic is a polymer compound (macromolecules) that is polymerized by addition or polycondensation of monomers, commonly known as plastics or resins. It can freely change its composition and shape. It is composed of synthetic resins and fillers, Plasticizer, stabilizer, lubricant, colorant and other additives. [0003] The main component of plastic is resin. The term resin was originally named after the lipids secreted by animals and plants, such as rosin, shellac, etc. Resin refers to a polymer compound that has not been mixed with various additives. Resin accounts for about 40% to 100% of the total weight of the plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important rol...

AI Technical Summary

Problems solved by technology

[0006] Waste PET plastic bottle flakes need to be crushed in the process of preparing composite boards. The existing crushing equipment is not thorough enough for the crushing of PET plastic bottle flakes, which leads to the subsequent mixing of PET plastic flakes with other The mixing of raw materials is not uniform enough, which affects the processing quality of composite panels;

[0007] Existing composite boards produced from PET bottle flakes are all made of multi-layer plastic boards, and the adhesive surface of the plastic boards is coated with an EVA modified layer or a weather-resistant resin layer for lamination to obtain a plastic composite board. However, when the plastic composite board is used for a long time, it is easy to cause the adhesive layer of the plastic board to crack, and the impact resistance is low, thus affecting the service life of the composite board;

[0008] Existing plastics often use a single polymer as the main material, which has a single function and poor overall performance, resulting in low mechanical strength of the plastic composite board

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