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Reinforced and toughened anti-bacterial polypropylene composition and preparation method thereof

An antibacterial polypropylene, strengthening and toughening technology, which is applied in the field of reinforced and toughened antibacterial polypropylene composition and its preparation, can solve the problems not related to the mechanical properties and antibacterial properties of polypropylene, achieve rapid antibacterial, broaden the application range, and improve mechanical properties performance effect

Inactive Publication Date: 2014-03-12
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 anti-bacterial polypropylene composition and preparation method thereof
  • Reinforced and toughened anti-bacterial polypropylene composition and preparation method thereof
  • Reinforced and toughened anti-bacterial polypropylene composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupled 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, compatibilizer.

[0040] The preparation method of the reinforced and toughened antibacterial polypropylene composition of this embodiment includes the following steps:

[0041] 1) Surface modification of inorganic antibacterial agents

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

Embodiment 2

[0048] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupled 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, compatibilizer.

[0049] The preparation method of the reinforced and toughened antibacterial polypropylene composition of this embodiment includes the following steps:

[0050] 1) Surface modification of inorganic antibacterial agents

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

Embodiment 3

[0057] This embodiment relates to a reinforced and toughened antibacterial polypropylene composition, including the following components: polypropylene, coupled 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, compatibilizer.

[0058] The preparation method of the reinforced and toughened antibacterial polypropylene composition of this embodiment includes the following steps:

[0059] 1) Surface modification of inorganic antibacterial agents

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

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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 specifically relates to a reinforced and toughened antibacterial polypropylene composition and a preparation method thereof. Background technique [0002] The data shows that the surface of various plastic products in daily life is contaminated and breeds many kinds of bacteria. For example, the bacteria on the toilets of hotels and restaurants include Escherichia coli, Staphylococcus aureus, Staphylococcus albicans, Bacillus subtilis, Tetragenococcus, etc., with a colony number of 40; the colony number of a public telephone microphone reaches 50; 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 antibacterial materials in house...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L23/06C08L23/08C08L51/06C08K9/06C08K9/04C08K3/22C08J3/22B29C47/92B29B9/06B29C48/92
CPCB29C48/92B29C48/875B29C2948/92704B29C2948/92895B29C2948/92904C08K2003/2241C08L23/12B29B9/06B29C2948/92514B29C2948/9258C08J3/226C08J2323/12C08J2323/14C08J2423/06C08J2423/08C08L23/14C08L2205/035C08L2207/068C08L23/0815C08L23/06C08L91/06C08L51/06C08K13/06C08K9/06C08K2003/2296C08K9/04
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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