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Recycling method of waste masks

A mask and cover body technology, applied in the field of polymer materials, can solve the problems of environmental pollution of discarded masks, achieve the effects of reducing environmental pollution, improving recycling efficiency, and reducing energy consumption and pressure

Inactive Publication Date: 2020-08-11
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of environmental pollution caused by discarded masks, a method for recycling discarded masks is provided

Method used

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  • Recycling method of waste masks
  • Recycling method of waste masks
  • Recycling method of waste masks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of recycling method of discarded mask, described recycling method comprises the steps:

[0028] (1) The bridge of the nose strip of the discarded mask is removed, the cover body and the lanyard of the discarded mask are made into fragments, and the fragments of the mask are obtained, dried and set aside; the material of the cover body is a non-woven fabric made of polypropylene resin, The melt index of the non-woven fabric is 40g / 10min~3000g / 10min, and the material of the lanyard is polyurethane elastomer;

[0029] (2) The mask fragments after drying and coupling agent, reinforcing agent, antioxidant, pigment, antibacterial agent and antistatic agent are first carried out banburying processing with a banburying extruder, and then extrusion processing, so Described banbury extruder comprises banbury section and extrusion section, and described banbury section is banbury mixer, and described extrusion section is single-screw extruder, and the banbury rotating speed...

Embodiment 2

[0033] A kind of recycling method of discarded mask, described recycling method comprises the steps:

[0034] (1) The bridge of the nose strip of the discarded mask is removed, the cover body and the lanyard of the discarded mask are made into fragments, and the fragments of the mask are obtained, dried and set aside; the material of the cover body is a non-woven fabric made of polypropylene resin, The melt index of the non-woven fabric is 40g / 10min~3000g / 10min, and the material of the lanyard is polyurethane elastomer;

[0035] (2) The mask fragments after drying and coupling agent, reinforcing agent, antioxidant, pigment, antibacterial agent and antistatic agent are first carried out banburying processing with a banburying extruder, and then extrusion processing, so Described banburying extruder comprises banburying part and extruding part, and described banburying part is banbury mixer, and described extruding part is single-screw extruder, and the banburying rotating speed...

Embodiment 3

[0039] A kind of recycling method of discarded mask, described recycling method comprises the steps:

[0040] (1) The bridge of the nose strip of the discarded mask is removed, the cover body and the lanyard of the discarded mask are made into fragments, and the fragments of the mask are obtained, dried and set aside; the material of the cover body is a non-woven fabric made of polypropylene resin, The melt index of the non-woven fabric is 40g / 10min~3000g / 10min, and the material of the lanyard is polyurethane elastomer;

[0041] (2) The mask fragments after drying and coupling agent, reinforcing agent, antioxidant, pigment, antibacterial agent and antistatic agent are first carried out banburying processing with a banburying extruder, and then extrusion processing, so Described banbury extruder comprises banbury section and extrusion section, and described banbury section is banbury mixer, and described extrusion section is single-screw extruder, and the banbury rotating speed o...

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Abstract

The invention relates to a recycling method of waste masks. The recycling method comprises the following steps that firstly, nose bridge strips of the waste masks are dismounted, mask bodies and hanging ropes of the waste masks are made into fragments, mask fragments are obtained, are dried and used for standby application, the materials of the cover bodies are non-woven fabric made of polypropylene resin with the fusion index being 40 g / 10 min to 3000 g / 10min, and the hanging ropes are polyurethane elastomers; and secondly, the dried mask fragments, a coupling agent, a reinforcing agent, an antioxidant, pigment, and an antibacterial agent are subjected to mixing machining and then subjected to extrusion machining through an internal mixing extruder, granulation is carried out, and finally, a polypropylene composite based on the waste masks is made. According to the method, the waste masks are recycled to be used for preparing the polypropylene composite, the environment pollution caused by the waste masks can be solved, and the polypropylene composite has the good mechanical property, the antibacterial capability and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a method for recycling waste masks. Background technique [0002] Wearing a mask is the simplest and most effective way to stop the spread of the epidemic. However, due to the epidemic, the use of masks has surged, and at the same time, some follow-up problems that are inevitable but not enough attention have arisen. The most important thing that cannot be ignored is how to deal with the use of masks used discarded masks. [0003] Calculated on the basis of one mask per person per day, it is estimated that the use of masks in the secondary industry, medical care, transportation and other industries is at least about 533 million per person per day. Calculated according to the average weight of an ordinary three-layer disposable mask of 5g, at least 2,600 tons of medical waste will be generated nationwide every day, which will cause great pressure on our country's enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B29C48/04B29C48/92C08L23/12C08L75/04
CPCB29B17/0412B29C48/04B29C48/92B29C2948/9259B29C2948/92704C08L23/12C08L2207/20C08L75/04Y02W30/62
Inventor 向萌董爽周仕龙杨菁菁杨洲朱圣清陈建香
Owner JIANGSU UNIV OF TECH
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