Special antibacterial masterbatch for biodegradable garbage bag and preparation method of antibacterial masterbatch

A technology of biodegradable and antibacterial masterbatch, which is applied in the field of preparation of antibacterial masterbatch for biodegradable garbage bags, which can solve the problems of increased cost and poor strength, and save resources , reduce production costs, and protect the environment

Inactive Publication Date: 2019-05-17
SHANGHAI CHANGFA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology provides an improved way to make plastic products that are resistant against harmful microorganisms such as germs or yeast without adding any chemical substances like preservatives which may cause health hazards if ingested too much. Additionally, this process helps reuse excess materials produced during manufacturing processes while reducing costs associated with disposals.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding ways to make better quality decomposables made up mostly of low-cost material while also being able to resist microbes like mold spores during decomposition without adding too much extra effort on their own.

Method used

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  • Special antibacterial masterbatch for biodegradable garbage bag and preparation method of antibacterial masterbatch
  • Special antibacterial masterbatch for biodegradable garbage bag and preparation method of antibacterial masterbatch
  • Special antibacterial masterbatch for biodegradable garbage bag and preparation method of antibacterial masterbatch

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A special antibacterial masterbatch for biodegradable garbage bags, in parts by mass, comprising the following components:

[0032]

[0033] And, the above recipe proceeds as follows:

[0034] (1) Dry a certain amount of papermaking waste and crush it to 50-500 mesh.

[0035] (2) Place the above-mentioned polybutylene adipate / terephthalate, polylactic acid, papermaking waste, compatibilizer, plasticizer, heat stabilizer, and antioxidant together in a high-speed blender, and The temperature was 60° C., the rotation speed was 250 rpm, and the mixture was mixed for 60 minutes to obtain the primary mixture.

[0036] (3) Place the above primary mixture in a twin-screw extruder to extrude and granulate. The temperature in the first zone to the sixth zone is 200°C, 200°C, 205°C, 210°C, 215°C, 215°C, and the temperature of the head is 215°C. , the screw speed is 300rpm, and the special antibacterial masterbatch for the biodegradable garbage bag is obtained.

[0037] (4) F...

Embodiment 2

[0039] A special antibacterial masterbatch for biodegradable garbage bags, in parts by mass, comprising the following components:

[0040]

[0041] And, the above recipe proceeds as follows:

[0042] (1) Dry a certain amount of papermaking waste and crush it to 50-500 mesh.

[0043] (2) Place the above-mentioned polybutylene adipate / terephthalate, polylactic acid, papermaking waste, compatibilizer, plasticizer, heat stabilizer, and antioxidant together in a high-speed blender, and The temperature was 60° C., the rotation speed was 250 rpm, and the mixture was mixed for 60 minutes to obtain the primary mixture.

[0044] (3) Place the above primary mixture in a twin-screw extruder to extrude and granulate. The temperature in the first zone to the sixth zone is 200°C, 200°C, 205°C, 210°C, 215°C, 215°C, and the temperature of the head is 215°C. , the screw speed is 300rpm, and the special antibacterial masterbatch for the biodegradable garbage bag is obtained.

[0045] (4) F...

Embodiment 3

[0047] A special antibacterial masterbatch for biodegradable garbage bags, in parts by mass, comprising the following components:

[0048]

[0049]

[0050] And, the above recipe proceeds as follows:

[0051] (1) Dry a certain amount of papermaking waste and crush it to 50-500 mesh.

[0052] (2) Place the above-mentioned polybutylene adipate / terephthalate, polylactic acid, papermaking waste, compatibilizer, plasticizer, heat stabilizer, and antioxidant together in a high-speed blender, and The temperature was 60° C., the rotation speed was 250 rpm, and the mixture was mixed for 60 minutes to obtain the primary mixture.

[0053] (3) Place the above primary mixture in a twin-screw extruder to extrude and granulate. The temperature in the first zone to the sixth zone is 200°C, 200°C, 205°C, 210°C, 215°C, 215°C, and the temperature of the head is 215°C. , the screw speed is 300rpm, and the special antibacterial masterbatch for the biodegradable garbage bag is obtained.

[0...

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Abstract

The invention provides special antibacterial masterbatch for a biodegradable garbage bag. The antibacterial masterbatch is prepared from components in parts by mass as follows: 20-85 parts of PBAT (poly(butylene adipate-co-terephthalate), 0-30 parts of polylactic acid, 10-70 parts of papermaking waste and 0.5-15 parts of an assistant. The invention further provides a preparation method. PBAT, polylactic acid, the papermaking waste and the assistant are mixed uniformly and subjected to extrusion and granulation, and the special antibacterial masterbatch for the biodegradable garbage bag is obtained. With the adoption of the preparation method, a large amount of papermaking waste can be recycled effectively; the papermaking waste has certain antibacterial activity, so that the special antibacterial masterbatch modified with the papermaking waste for the biodegradable garbage bag also has certain antibacterial activity, decay and fermentation of organic matter in garbage can be inhibited,and peculiar smell emitted by garbage decay can be reduced.

Description

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Claims

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Application Information

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Owner SHANGHAI CHANGFA NEW MATERIAL CO LTD
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