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Reinforced and toughened antibacterial polypropylene composition and preparation method thereof

An antibacterial polypropylene, strengthening and toughening technology, applied in the field of strengthening and toughening antibacterial polypropylene compositions and their preparation, can solve the problems that do not involve polypropylene mechanical properties and antibacterial, achieve rapid antibacterial, widen application scope, and improve mechanical properties performance effect

Inactive Publication Date: 2016-03-30
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned patents report the toughening modification of polypropylene, the published reports do not involve research on the mechanical properties and antibacterial properties of polypropylene.

Method used

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  • Reinforced and toughened antibacterial polypropylene composition and preparation method thereof
  • Reinforced and toughened antibacterial polypropylene composition and preparation method thereof
  • Reinforced and toughened antibacterial polypropylene composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupling modified inorganic antibacterial agent, ultra-high molecular weight polyethylene masterbatch, grafted polypropylene, dispersant, stabilizer , Antioxidant; Among them, the ultra-high molecular weight polyethylene masterbatch is composed of the following components: ultra-high molecular weight polyethylene, linear low-density polyethylene, inorganic powder, and compatibilizer.

[0040] The preparation method of the reinforced and toughened antibacterial polypropylene composition of the present embodiment comprises the steps:

[0041] 1) Surface modification of inorganic antibacterial agents

[0042] Use ethanol as the dispersion medium and heat to 60°C, add silane coupling agent KH550 to disperse for 5 minutes, then add inorganic antibacterial agent zinc oxide to disperse for 30 minutes, dry, grind, and sieve to obtain ...

Embodiment 2

[0048] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupling modified inorganic antibacterial agent, ultra-high molecular weight polyethylene masterbatch, grafted polypropylene, dispersant, stabilizer , Antioxidant; Among them, the ultra-high molecular weight polyethylene masterbatch is composed of the following components: ultra-high molecular weight polyethylene, linear low-density polyethylene, inorganic powder, and compatibilizer.

[0049] The preparation method of the reinforced and toughened antibacterial polypropylene composition of the present embodiment comprises the steps:

[0050] 1) Surface modification of inorganic antibacterial agents

[0051] Use ethanol as the dispersion medium and heat to 60°C, add silane coupling agent KH550 to disperse for 5 minutes, then add inorganic antibacterial agent zinc oxide to disperse for 30 minutes, dry, grind, and sieve to obtain ...

Embodiment 3

[0057] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupling modified inorganic antibacterial agent, ultra-high molecular weight polyethylene masterbatch, grafted polypropylene, dispersant, stabilizer , Antioxidant; Among them, the ultra-high molecular weight polyethylene masterbatch is composed of the following components: ultra-high molecular weight polyethylene, linear low-density polyethylene, inorganic powder, and compatibilizer.

[0058] The preparation method of the reinforced and toughened antibacterial polypropylene composition of the present embodiment comprises the steps:

[0059] 1) Surface modification of inorganic antibacterial agents

[0060] Heat to 70°C with isopropanol as the dispersion medium, add silane coupling agent DL602 to disperse for 5 minutes, then add inorganic antibacterial agent zinc oxide to disperse for 30 minutes, dry, grind and sieve to obtain ...

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Abstract

The invention relates to a reinforced and toughened anti-bacterial polypropylene composition and a preparation method thereof. The composition comprises the following components in weight percent: 54% to 87.7% of polypropylene, 0.5% to 5% of a coupling-modified inorganic antimicrobial agent, 10% to 30% of ultra-high molecular weight polyethylene master batch, 1% to 8% of graft polypropylene; 0.2% to 1% of a stabilizing agent, 0.2% to 1% of a dispersing agent and 0.4% to 1% of anti-oxidant. According to the invention, ultra-high molecular weight polyethylene is prepared into ultra-high molecular weight polyethylene master batch under certain conditions, and the ultra-high molecular weight polyethylene master batch, the surface-modified inorganic antimicrobial agent, the polypropylene, the graft polypropylene and other additives are quickly mixed and extruded to be manufactured into a polypropylene composite material with high strength, high ductility and high mold resistance. Under the condition that the inorganic antimicrobial agent is added to endow excellent antibacterial activity to the polypropylene, organic very long-chain high-polymer reinforced and toughened polypropylene is added, so that the prepared polypropylene composite material not only has excellent mold resistance but also has outstanding mechanical characteristics.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a reinforced and toughened antibacterial polypropylene composition and a preparation method thereof. Background technique [0002] The data show that various germs are contaminated and breed on the surface of various plastic products that are in contact with in daily life. For example, the bacteria on toilets in hotels and restaurants include Escherichia coli, Staphylococcus aureus, Staphylococcus albus, Bacillus subtilis, Tetralococcus, etc., with 40 colonies; public telephone microphones with 50 colonies; door handles of hospitals and hotels The number of colonies can even be as high as 200 or more. With the improvement of people's material living standards, everyone's requirements for hygiene and health are getting higher and higher. Since the 1990s, developed countries represented by Japan have carried out research, development and production of antiba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/06C08L23/08C08L51/06C08K9/06C08K9/04C08K3/22C08J3/22B29C47/92B29B9/06B29C48/92
CPCB29C48/92B29C48/875B29C2948/92704B29C2948/92895B29C2948/92904C08K2003/2241
Inventor 刘思俊徐少洪陈超赵斌刘光武金彩虹何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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