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LDPE (low-density polyethylene) antibacterial plastic and preparation method therefor

A technology of antibacterial plastics and plasticizers, applied in the field of polymers, can solve problems such as short service life, poor heat resistance, and poor safety, and achieve excellent processing performance, super antibacterial properties, and undemanding effects

Active Publication Date: 2016-06-15
SHENZHEN BOXINMEI NANOMETER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic antibacterial agents have a fast sterilizing speed, and some can effectively kill and inhibit mold. However, in addition to poor safety in use, they also have problems such as poor heat resistance, easy hydrolysis, and short service life.

Method used

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  • LDPE (low-density polyethylene) antibacterial plastic and preparation method therefor
  • LDPE (low-density polyethylene) antibacterial plastic and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: the preparation of a kind of LDPE antibacterial plastic

[0029] Ingredients: 120 parts of low-density polyethylene, 4 parts of isothiazolinone, 3 parts of polyhexamethyleneguanidine, 4 parts of betaine, 3 parts of nano-zinc oxide powder, 4 parts of nano-titanium dioxide, 1 part of zinc stearate, white 1.5 parts of oil, 2 parts of coupling agent, 1 part of oleic acid amide, 0.5 parts of ethylene-octene copolymer, 0.7 parts of antioxidant, 2 parts of random copolymer of styrene and maleic anhydride, 1 part of plasticizer The coupling agent is a combination of titanate coupling agent and silane coupling agent, the ratio of the two is 2:1; the plasticizer is triethyl citrate; the antioxidant is 4,4'-thio Combination of bis(6-tert-butyl-3-methylphenol) and sodium tripolyphosphate, the ratio of the two is 1:1;

[0030] Preparation includes the following steps:

[0031] (1) Premixing isothiazolinone, polyhexamethyleneguanidine, betaine and antioxidant to obtai...

Embodiment 2

[0034] Embodiment 2: the preparation of a kind of LDPE antibacterial plastic

[0035] Ingredients: 100 parts of low-density polyethylene, 3 parts of isothiazolinone, 2 parts of polyhexamethyleneguanidine, 2 parts of betaine, 2 parts of nano-zinc oxide powder, 3 parts of nano-titanium dioxide, 0.5 parts of zinc stearate, white 0.5 parts of oil, 0.5 parts of coupling agent, 0.5 parts of oleic acid amide, 0.1 parts of ethylene-octene copolymer, 0.5 parts of antioxidant, 0.1 parts of random copolymer of styrene and maleic anhydride, 0.5 parts of plasticizer The coupling agent is a combination of titanate coupling agent and silane coupling agent, the ratio of the two is 2:1; the plasticizer is triethyl citrate; the antioxidant is 4,4'-thio Combination of bis(6-tert-butyl-3-methylphenol) and sodium tripolyphosphate, the ratio of the two is 1:1;

[0036] Preparation includes the following steps:

[0037] (1) Premixing isothiazolinone, polyhexamethyleneguanidine, betaine and antioxi...

Embodiment 3

[0040] Embodiment 3: the preparation of a kind of LDPE antibacterial plastic

[0041] Ingredients: 150 parts of low-density polyethylene, 5 parts of isothiazolinone, 5 parts of polyhexamethyleneguanidine, 5 parts of betaine, 5 parts of nano-zinc oxide powder, 5 parts of nano-titanium dioxide, 2 parts of zinc stearate, white 2 parts of oil, 5 parts of coupling agent, 2 parts of oleic acid amide, 1 part of ethylene-octene copolymer, 1 part of antioxidant, 3 parts of random copolymer of styrene and maleic anhydride, 2 parts of plasticizer The coupling agent is a combination of titanate coupling agent and silane coupling agent, the ratio of the two is 2:1; the plasticizer is triethyl citrate; the antioxidant is 4,4'-thio Combination of bis(6-tert-butyl-3-methylphenol) and sodium tripolyphosphate, the ratio of the two is 1:1;

[0042] Preparation includes the following steps:

[0043] (1) Premixing isothiazolinone, polyhexamethyleneguanidine, betaine and antioxidant to obtain a p...

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Abstract

The invention relates to an LDPE (low-density polyethylene) antibacterial plastic and a preparation method therefor. The antibacterial plastic is prepared from the following components in parts by weight: 100-150 parts of LDPE, 3-5 parts of isothiazolinone, 2-5 parts of polyhexamethyleneguanidine, 2-5 parts of betaine, 2-5 parts of nano-zinc oxide powder, 3-5 parts of nano-titanium dioxide, 0.5-2 parts of zinc stearate, 0.5-2 parts of white oil, 0.5-5 parts of a coupler, 0.5-2 parts of oleamide, 0.1-1 part of an ethylene-octene copolymer, 0.5-1 part of an antioxidant, 0.1-3 parts of a styrene-maleic anhydride random copolymer and 0.5-2 parts of a plasticizer. The antibacterial plastic is excellent in mechanical property and processing performance and good in flame retardancy, has good antibacterial property and can be used for plastic products such as plastic films, packaging bags and the like.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and relates to an antibacterial plastic and a preparation method thereof, in particular to an LDPE antibacterial plastic and a preparation method thereof. Background technique [0002] At present, plastic products play a very important role in people's daily life and industrial and agricultural production. However, with the change of people's health concept, it is gradually realized that a large number of various healing bacteria that are harmful to human health will grow on the surface of plastic products. In order to effectively prevent and kill the bacteria attached to the plastic surface, people usually add antibacterial agents to the plastic to make antibacterial plastic, so that the plastic itself has antibacterial properties, which can kill or kill the bacteria that are stained on the plastic within a certain period of time. Inhibition, compared with conventional chemical and physi...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L79/00C08L23/08C08L35/06C08K13/02C08K3/22C08K5/098C08K5/20C08K5/47
CPCC08K2201/011C08L23/06C08L2201/08C08L2205/035C08L2207/066C08L79/00C08L23/0815C08L35/06C08K13/02C08K2003/2241C08K5/098C08K5/20C08K2003/2296C08K5/47
Inventor 张崇英
Owner SHENZHEN BOXINMEI NANOMETER TECH CO LTD
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