Antibacterial modified PE film and preparation method thereof

Abstract

The invention discloses an antibacterial modified PE film and a preparation method thereof. The antibacterial modified PE film comprises the following raw materials in parts by weight, 50-60 parts oflinear low-density polyethylene, 30-40 parts of low-density polyethylene, 3-5 parts of antioxidant, 1-3 parts of odor remover, 2-4 parts of processing aid, 3-5 parts of plasticizer, 2-3 parts of antibacterial agent, 1-2 parts of compatilizer, 0.6-1 part of carbon black and 1-2 parts of light absorber. According to the invention, linear low-density polyethylene and low-density polyethylene are mixed in proportion and subjected to film blowing; according to the PE blown film, the advantages of the linear low-density polyethylene and the low-density polyethylene can be integrated, the interactionbetween the linear low-density polyethylene and the low-density polyethylene is enhanced, the linear low-density polyethylene serves as rigid particles under the action of external force, the transparency and the tensile strength of the PE blown film are effectively improved, and the stability of the PE film is effectively guaranteed by adding the main antioxidant and the auxiliary antioxidant.

Description

technical field [0001] The invention belongs to the technical field of PE film preparation, in particular to an antibacterial modified PE film and a preparation method thereof. Background technique [0002] PE film is a film made of polyethylene material, and polyethylene (PE) has high molecular weight, low degree of branching, excellent mechanical properties, excellent electrical insulation properties, low temperature resistance, easy processing and molding, and excellent chemical stability. Advantages, it has been widely used in the fields of industry, agriculture, construction and national defense, and products such as films, pipes, wires, cables, home appliances, plastic products, packaging materials and auto parts. With the development of petrochemical industry, the production of polyethylene has developed rapidly. The output accounts for about 1 / 4 of the total output of plastics, and the consumption is also the first 1-3 of all synthetic resins. In recent years, with ...

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Problems solved by technology

[0003] The existing PE film preparation process is complicated, resulting in high cost. For example, patent application number CN201610010572.7 discloses a polyethylene film production line, including extrusion mechanism, power mechanism, air compressor, storage box and other structures. The preparation process of the PE film is simplified and has the characteristics of low cost, but the existing PE film still has the following deficiencies in the preparation process:

[0004] 1. The existing PE film has poor flexibility, is difficult to stretch and has poor retractability, and has the problems of low transparency and low tensile strength, and is easily damaged;

[0005] 2. The existing PE film preparation process usually involves rewinding the PE film first, and then unwinding and trimming the reeled PE film. The operation is cumbersome and the process is complicated;

[0006] 3. The existing PE film is wound by a single winding roller during the production process, resulting in the need to stop the machine to replace the winding roller during the continuous winding process of the PE film, which is time-consuming and laborious, and reduces the production efficiency of the PE film

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