Process of producing logistic tray with waste plastics

Abstract

The process of producing logistic tray with waste plastics relates to utilization of waste plastics. Waste polyethylene and polypropylene plastics are produced into logistic tray through the steps of washing, drying, sorting, crushing, adding modifier and injection molding. The modifier comprises propylene dichloride resin, calcium carbonate, stearate and surfactant polyethylene glycol. The present invention produces logistic tray with waste plastic completely and is environment friendly, and the produced logistic tray has high strength, durable and with less deformation.

Description

technical field

[0001] The invention relates to a method for producing logistics trays with waste plastics. Background technique

[0002] Utilize the existing " a kind of composite material tray " (patent application number 00112751) of waste and old plastics production tray, be to add adhesive agent with a certain amount of fly ash, waste plastics, waste and old fiber, add binder, molded under high temperature and pressure. "Plastic Tray" (Patent No. 01241096) consists of an upper tray body assembly and a lower tray body assembly connected by bolts. It enables comprehensive utilization of fly ash and waste plastics, turning waste into treasure, and is beneficial to the comprehensive management of the environment. "Environment-friendly industrial tray" (patent No. 00245867) is composed of a supporting plate, a bottom plate, and a supporting member, and most of its raw materials are recycled waste plastics, straw, and straw. Neither of them introduce...

Examples

example 1

[0022] Example 1. Take polyethylene waste plastics with a weight ratio of 35%, 65% polypropylene waste plastics, after cleaning, drying, sorting, and crushing, add 0.2% MPP, 0.25% calcium carbonate, and 0.3% stearin to the total amount of waste plastics. salt, 0.25% polyethylene glycol modified by injection molding to obtain logistics trays.

example 2

[0023] Example 2, take 42% polyethylene waste plastics by weight, 58% polypropylene waste plastics after cleaning, drying, sorting, crushing, add waste plastics total amount 1.0% MPP, 1.3% calcium carbonate, 1.2% stearin salt, 1.0% polyethylene glycol modified by injection molding to obtain logistics trays.

example 3

[0024] Example 3, take 60% polyethylene waste plastics by weight, 40% polypropylene waste plastics, after cleaning, drying, sorting, crushing, add waste plastics total amount of 1.1% MPP, 1.3% calcium carbonate, 1.5% stearin salt, 0.9% polyethylene glycol modified by injection molding to obtain logistics trays.

technical field

[0001] The invention relates to a method for producing logistics trays with waste plastics. Background technique

[0002] Utilize the existing " a kind of composite material tray " (patent application number 00112751) of waste and old plastics production tray, be to add adhesive agent with a certain amount of fly ash, waste plastics, waste and old fiber, add binder, molded under high temperature and pressure. "Plastic Tray" (Patent No. 01241096) consists of an upper tray body assembly and a lower tray body assembly connected by bolts. It enables comprehensive utilization of fly ash and waste plastics, turning waste into treasure, and is beneficial to the comprehensive management of the environment. "Environment-friendly industrial tray" (patent No. 00245867) is composed of a supporting plate, a bottom plate, and a supporting member, and most of its raw materials are recycled waste plastics, straw, and straw. Neither of them introduce...

Examples

example 1

[0022] Example 1. Take polyethylene waste plastics with a weight ratio of 35%, 65% polypropylene waste plastics, after cleaning, drying, sorting, and crushing, add 0.2% MPP, 0.25% calcium carbonate, and 0.3% stearin to the total amount of waste plastics. salt, 0.25% polyethylene glycol modified by injection molding to obtain logistics trays.

example 2

[0023] Example 2, take 42% polyethylene waste plastics by weight, 58% polypropylene waste plastics after cleaning, drying, sorting, crushing, add waste plastics total amount 1.0% MPP, 1.3% calcium carbonate, 1.2% stearin salt, 1.0% polyethylene glycol modified by injection molding to obtain logistics trays.

example 3

[0024] Example 3, take 60% polyethylene waste plastics by weight, 40% polypropylene waste plastics, after cleaning, drying, sorting, crushing, add waste plastics total amount of 1.1% MPP, 1.3% calcium carbonate, 1.5% stearin salt, 0.9% polyethylene glycol modified by injection molding to obtain logistics trays.