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Antibacterial LDPE produced by grafting reactive extrusion and preparation method thereof

A reactive extrusion and antibacterial technology, applied in the field of materials, can solve the problems of easy aging, poor effect, and long-lasting antibacterial effect, and achieve the effect of not easy aging, improved antibacterial effect, and long-lasting antibacterial effect

Pending Publication Date: 2020-11-10
JIANGSU BAOAN CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the blending method is used to add an antibacterial agent to the LDPE material to achieve antibacterial function, but there are problems of easy aging, long-lasting antibacterial effect and poor effect.

Method used

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  • Antibacterial LDPE produced by grafting reactive extrusion and preparation method thereof
  • Antibacterial LDPE produced by grafting reactive extrusion and preparation method thereof
  • Antibacterial LDPE produced by grafting reactive extrusion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]

[0025] Implementation process:

[0026] (1) Extrude on a twin-screw extruder with a length-to-diameter ratio of L / D=48. The twin-screw extruder is divided into 12 sections and 3 feed ports. The first feed port is located at the second extruder One section, the second feed port is located in the fifth section of the extruder, the third feed port is located in the seventh section of the extruder, the distance between the second feed port and the first feed port, and the first The ratio of the distance between the three feeding ports and the first feeding port is 20:28.

[0027] (2) Add LDPE to the first feeding port on the twin-screw extruder running at 120r / min at a feeding rate of 75kg / h. N-(2-acryloyloxyethyl)-N,N-dimethyl-n-(3-thiopropyl)betaine amine, 1-allyltetrahydro-4(1H)-pyridone Initiator, 2.5-dimethyl-2.5-bis(tert-butyl peroxy) hexane, catalyst di-n-octyltin dilaurate, after mixing uniformly according to the formula ratio, add to the place located at the...

Embodiment 2

[0032]

[0033]

[0034] Implementation process:

[0035] (5) Extrude on a twin-screw extruder with a ratio of length to diameter L / D=48. The twin-screw extruder is divided into 12 sections and 3 feed ports. The first feed port is located at the second extruder. One section, the second feed port is located in the fifth section of the extruder, the third feed port is located in the seventh section of the extruder, the distance between the second feed port and the first feed port, and the first The ratio of the distance between the three feeding ports and the first feeding port is 20:28.

[0036] (6) Add LDPE to the first feeding port on the twin-screw extruder running at 120r / min at a feeding rate of 75kg / h. N-(2-acryloyloxyethyl)-N,N-dimethyl-n-(3-thiopropyl)betaine amine, 1-allyltetrahydro-4(1H)-pyridone Initiator, 2.5-dimethyl-2.5-bis(tert-butyl peroxy) hexane, catalyst di-n-octyltin dilaurate, after mixing uniformly according to the formula ratio, add to the place l...

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PUM

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Abstract

The invention discloses an antibacterial LDPE produced by grafting reactive extrusion and a preparation method of the antibacterial LDPE. The antibacterial LDPE is prepared by extruding the followingcomponents in parts by weight through a double-screw extruder: 100 parts of LDPE, 5-10 parts of N-(2-acryloyloxyethyl)-N,N-dimethyl-n-(3-thiopropyl) betaine amine, 2-8 parts of 1-allyltetrahydro-4-(1H)-pyridone, 0.2-0.6 part of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 0.1-0.5 part of a catalyst, 0.3-0.7 part of an antioxidant and 0.6-1.0 part of a lubricant. The antibacterial LDPE produced bygrafting reactive extrusion has a lasting antibacterial effect and is not easy to age.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an antibacterial LDPE produced by grafting reactive extrusion and a preparation method thereof. Background technique [0002] LDPE (low density polyethylene) is a general-purpose thermoplastic polymer material with good physical and mechanical properties. Widely used in food packaging, kitchen supplies, household appliances, daily necessities, etc. With the rapid development of the polymer material industry, antibacterial polymer materials have become the future development trend. LDP itself has no antibacterial function, and the surface of the product is susceptible to infection, where a large number of bacteria can grow, and pathogenic bacteria can easily spread between people and things, bringing harm to people's health. Usually, the blending method is used to add an antibacterial agent to the LDPE material to achieve antibacterial function, but there are probl...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08K5/20C08K5/134C08K5/372C08F255/02C08F220/38C08F226/06
CPCC08K5/20C08K5/1345C08K5/372C08F255/02C08L2201/04C08F220/387C08F226/06C08L51/06
Inventor 刘强吴军荣石海
Owner JIANGSU BAOAN CABLE
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