High-strength injection molding material prepared from waste polyester bottle flakes and waste polypropylene injection molding materials and preparation method thereof

Abstract

The invention relates to a high-strength injection molding material prepared from waste polyester bottle flakes and waste polypropylene injection molding materials and a preparation method thereof, and belongs to the technical field of treatment and resource utilization of waste plastics. The method includes: firstly, crushing the waste polyester bottle flakes (PET) and the waste polypropylene injection molding materials (PP) into materials similar in size, washing and drying prior to uniform mixing to obtain the PET / PP mixed waste; secondly, taking 100 parts of the prepared PET / PP mixed waste, 5-10 parts of chlorinated polyethylene, 0.5-1 part of maleic anhydride, 0.5-1 part of silane coupling agent, 1-3 parts of paroline oil and 0.5 part of ferrous sulfate for blending prior to extruding and granulating to prepare the high-strength injection molding material.The prepared injection molding material is superior to brand-new PP-V30G injection molding material in impact strength, and undesirable odor emitted from the waste plastics are effectively reduced and lowered during processing as the ferrous sulfate which can be in chemical combination with odor of the waste polyester bottle flakes and the polypropylene film waste is contained in the raw material formula.

Description

technical field [0001] The invention belongs to the technical field of treatment and resource utilization of waste plastics, and relates to a high-strength injection plastic prepared by using waste polyester bottle flakes and waste polypropylene injection plastic and a method thereof. Background technique [0002] Existing polyester waste bottle flakes (i.e. polyethylene terephthalate, PET) are generally used for weaving or alone for blowing low-end products such as daily-use packaging bottles, polypropylene waste injection molding (PP) They are also processed into low-end products such as daily-use packaging bags and packaging bottles by means of separate recycling. This kind of extensive recycling has simple processing, poor quality, and low utilization value. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art, and provide a high-strength injection molding material prepared by using waste polyester bot...

AI Technical Summary

Problems solved by technology

[0002] Existing polyester waste bottle flakes (i.e. polyethylene terephthalate, PET) are generally used for weaving or alone for blowing low-end products such as daily-use packaging bottles, polypropylene waste injection molding (PP) They are also processed into low-end products such as daily-use packaging bags and packaging bottles by means of separate recycling. This kind of extensive recycling has simple processing, poor quality, and low utilization value.

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