Antibacterial composition and film thereof

An antibacterial composition, the technology of the composition, applied in the directions of synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve the problems of poor film formation and easy film rupture.

Active 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 b

Method used

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

Examples

Experimental program
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Effect test

Embodiment approach

[0037] According to a preferred embodiment of the present invention, the antibacterial composition is prepared in a multi-reactor parallel device as shown in Figure 1, and the multi-reactor parallel device includes a first reactor 1 and a second reactor 2 , the third reactor 3, solid / liquid (gas) separator 4, homogenizing silo 5 and melting granulation system 6, wherein, the first reactor 1, the second reactor 2 and the third reactor 3 Connected in parallel, the number of the solid / liquid (gas) separator 4 is three, communicated with the first reactor 1, the second reactor 2 and the third reactor 3 respectively, prepared by the first reactor 1 Component A, the component B prepared by the second reactor 2 and the component C prepared by the third reactor 3 carry out phase separation in different solid / liquid (gas) separators 4 respectively, and then the phase The separated component A, component B and component C are transported to the homogenizing silo 5 in proportion and mixe...

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 The catalyst system (metallocene catalyst) and the preparation of the polymerization process are different in the amount of hydrogen added when preparing different components and the type and molar content of the α-olefin comonomer. Specific steps are as follows:

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

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 The catalyst system (metallocene catalyst) and the preparation of the polymerization process are different in the amount of hydrogen added when preparing different components and the type and molar content of the α-olefin comonomer. Specific steps are as follows:

[0068] Add ethylene, α-olefin, hydrogen and nitrogen into the fluidized bed gas phase reactor, then add the metallocene catalyst system, and then polymerize at a temperature of 84-88°C and a pressure of 1.8-2.0MPa to obtain the components respectively A, component B and component C. Amon...

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Abstract

The invention relates to an antibacterial composition. The antibacterial composition comprises a polyethylene composition and an antibacterial agent, wherein the polyethylene composition contains a component A and a component C, and selectively contains a component B; the component A is ethylene/alpha olefin copolymerized linear low-density polyethylene and the melt index MIA is 0.01 to 2 g/10min; the component B is ethylene/alpha olefin copolymerized linear low-density polyethylene and the melt index MIB is 2.1 to 14.9 g/10min; and the component C is ethylene/alpha olefin copolymerized linear low-density polyethylene and the melt index MIC is 15 to 150 g/10min. The invention also provides a film. The film at least comprises a polyethylene layer formed by the antibacterial composition. The film provided by the invention achieves high antibacterial property and has the advantages of large stretching ratio and high film-forming speed.

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
CPCB32B27/32B32B2307/7145C08J5/18C08J2323/08C08J2423/08C08K2201/011C08L23/0815C08L2203/16C08L2205/025C08L2205/03C08L2205/035C08L71/02C08K9/12C08K2003/0806C08L9/06C08K2003/2296C08L23/0853
Inventor 李杰高达利张师军初立秋郭梅芳施红伟李汝贤于鲁强尹华杨庆泉郭鹏徐毅辉张丽英
Owner CHINA PETROLEUM & CHEM CORP
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