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Antibacterial composition and film thereof

An antibacterial composition and composition technology, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve the problems of poor film-forming property and easy cracking of the film

Inactive Publication Date: 2017-05-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the existence of poor film-forming properties and easy rupture of the film when the polyethylene raw material of the existing antibacterial polyethylene film is prepared by the flat film stretching method, that is, it is not suitable for adopting the flat film stretching method. Prepare the defect of antibacterial film, and provide a kind of new a kind of antibacterial composition and film thereof

Method used

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  • Antibacterial composition and film thereof
  • Antibacterial composition and film thereof
  • Antibacterial composition and film thereof

Examples

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Embodiment approach

[0037] According to a preferred embodiment of the present invention, the antibacterial composition is figure 1Prepared in the shown multi-reactor parallel device, described multi-reactor parallel device comprises first reactor 1, second reactor 2, third reactor 3, solid / liquid (gas) separator 4, homogenizer The silo 5 and the melt granulation system 6, wherein the first reactor 1, the second reactor 2 and the third reactor 3 are connected in parallel, and the number of the solid / liquid (gas) separator 4 is three One, communicated with the first reactor 1, the second reactor 2 and the third reactor 3 respectively, the component A produced by the first reactor 1, the component B produced by the second reactor 2 and the component B produced by the third reactor The component C prepared by the reactor 3 is carried out phase separation in different solid / liquid (gas) separators 4 respectively, and then the component A, component B and component C after the phase separation will be ...

Embodiment 1

[0052] This embodiment is used to illustrate the antibacterial composition and film thereof provided by the present invention.

[0053] (1) Preparation of antibacterial composition:

[0054] The polyethylene composition provided in this example is composed of component A, component B and component C, and these three components are linear low density polyethylene (LLDPE) copolymerized with ethylene / α olefin, and all adopt the same Catalyst system (Ziegler-Natta catalyst) and polymerization process preparation, the difference lies in the amount of hydrogen added when preparing different components and the type and molar content of α-olefin comonomers. Specific steps are as follows:

[0055] Add ethylene, α-olefin, hydrogen and nitrogen (ethylene, α-olefin, hydrogen and nitrogen are of polymerization grade, used after removing water and oxygen, the same below) into the fluidized bed gas phase reactor, and then into the Ziegler -Natta catalyst system (the Ziegler-Natta catalyst ...

Embodiment 2

[0065] This embodiment is used to illustrate the antibacterial composition and film thereof provided by the present invention.

[0066] (1) Preparation of antibacterial composition:

[0067] The polyethylene composition provided in this example is composed of component A, component B and component C, and these three components are linear low density polyethylene (LLDPE) copolymerized with ethylene / α olefin, and all adopt the same Catalyst system (Ziegler-Natta catalyst) and polymerization process preparation, the difference lies in the amount of hydrogen added when preparing different components and the type and molar content of α-olefin comonomers. Specific steps are as follows:

[0068] Add ethylene, alpha olefin, hydrogen and nitrogen into the fluidized bed gas phase reactor, then add the Ziegler-Natta catalyst system, and then polymerize under the conditions of temperature 84-88°C and pressure 1.8-2.0MPa, Component A, component B and component C were obtained respectivel...

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Abstract

The present invention relates to an antibacterial composition, which contains a polyethylene composition and an antibacterial agent, wherein the polyethylene composition contains a component A, a component C and an optional component B, the component A is ethylene / alpha olefin copolymerized linear low density polyethylene and has a melt index MIA of 0.01-3.5 g / 10 min, the component B is ethylene / alpha olefin copolymerized linear low density polyethylene and has a melt index MIB of 3.6-9.9 g / 10 min, and the component C is ethylene / alpha olefin copolymerized linear low density polyethylene and has a melt index MIC of 10-80 g / 10 min. The present invention further provides a film, which comprises at least a layer of a polyethylene layer formed from the antibacterial composition. According to the present invention, the film achieves good antibacterial property while has advantages of high elongation ratio and high film-forming rate.

Description

technical field [0001] The invention relates to an antibacterial composition and its film. Background technique [0002] Biaxially Oriented Polyethylene (BOPE) film is a film material formed by a polyethylene (PE) resin with a special molecular structure through a biaxial stretching process. In the forming process of BOPE film, after the film is stretched, the PE macromolecular chain and crystal structure are highly oriented, which significantly improves the tensile strength of the film, reduces the tensile elongation at break, and makes the film Lower haze, higher gloss and better clarity. In addition, compared with polyethylene film products prepared by extrusion blow molding process and extrusion casting process in the prior art, BOPE film has high mechanical strength, good puncture resistance and impact resistance, excellent optical properties, energy saving and environmental protection, etc. Advantage. Therefore, BOPE film can be widely used in packaging bags, heavy ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L71/02C08L9/06C08K9/12C08K3/08C08K3/22B32B27/32
CPCC08L23/0815B32B27/32B32B2307/7145C08J5/18C08J2323/08C08J2423/08C08K2201/011C08L2203/16C08L2205/025C08L2205/03C08L2205/035C08L71/02C08K9/12C08K2003/0806C08L9/06C08K2003/2296C08L23/0853
Inventor 李杰张师军初立秋高达利邹浩徐萌权慧解娜张琦白弈青吕明福徐耀辉
Owner CHINA PETROLEUM & CHEM CORP
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