Copier/printer exterior part using halogen-free flame-retardant resin composition including recycled polycarbonate and recycled polyethylene terephthalate

Abstract

A copier / printer exterior part uses a halogen-free flame-retardant resin composition. The halogen-free flame-retardant resin composition includes 5 wt % to 50 wt % of unused polycarbonate, 20 wt % to 63 wt % of recycled polycarbonate, 5 wt % to 35 wt % of recycled polyethylene terephthalate, 0.2 wt % to 2 wt % of a styrene-acrylonitrile-glycidyl methacrylate terpolymer, 5 wt % to 15 wt % of a toughener, 10 wt % to 20 wt % of a flame retardant, 0.1 wt % to 0.8 wt % of a flame-retardant antidrip agent, 0.1 wt % to 1 wt % of an antioxidant, and 0.1 wt % to 2 wt % of a lubricant. The styrene-acrylonitrile-glycidyl methacrylate terpolymer includes 1 wt % to 5 wt % of glycidyl methacrylate and 20 wt % to 33 wt % of acrylonitrile.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a composition and use of the composition, and, in particular, relates to a halogen-free flame-retardant resin composition including recycled polycarbonate and recycled polyethylene terephthalate and a copier / printer exterior part using the resin composition.[0003]2. Description of the Related Art[0004]With continuous and rapid development of the plastic industry, plastic products have been widely used. At the same time, however, plastic waste has increased, and a huge amount of energy sources has been wasted. Accordingly, collection and reuse of plastic waste has attracted more attention than before.[0005]Plastic materials are chemicals derived from petroleum. It is well known that petroleum is a lifeline for the industries of the present age and a natural source which cannot be reproduced. According to statics of a related organization, plastic waste generated by one medium-sized city p...

AI Technical Summary

Benefits of technology

The present invention aims to provide a resin composition that does not contain halogens and includes recycled polycarbonate and recycled polyethylene terephthalate. Additionally, the invention aims to use this resin composition in the manufacturing of copier / printer exterior parts. By using this combination, the resin composition can achieve recycling of polycarbonate and polyethylene terephthalate and maintain the mechanical performance and stability of the materials used in the resin composition.

Problems solved by technology

At the same time, however, plastic waste has increased, and a huge amount of energy sources has been wasted.

In recent years, consumption of PC has rapidly and continuously increased, and unavoidably, a large amount of PC waste has been generated.

Meanwhile, several million tons of PET waste, which is generated by consumption of a large amount of PET, is generated every year.

If PET waste is not sufficiently used, a large amount of resources is wasted.

However, the application range of recycled PET is relatively narrow in the engineering plastic field.

Furthermore, influence of low molecular weights and wide distribution of molecular weights of recycled PET on performance thereof is more than that of recycled PC on performance thereof, and hence a composition including recycled PET and a product using the composition are unstable in performance, and difficult to obtain stable mechanical performance.

Consequently, the application range of recycled PET is somewhat limited.

Images