Polymeric membrane and polymeric membrane manufacturing method

Abstract

The invention discloses a polymeric membrane, which comprises a polymeric membrane composed of a film substrate, an acrylic copolymer and a functional filler, the film substrate is one or a combination of more of polyurethane, polytetrafluoroethylene and polyether-ether-ketone, the functional filler is an antibacterial filler, and the antibacterial filler comprises a metal filler and a plant filler. Compared with the prior art, the invention has the advantages that the polymeric membrane which is convenient to use and good in antibacterial effect and the polymeric membrane manufacturing method are provided.

Description

Technical Field

[0001] The invention relates to the technical field of polymer films, in particular to a polymer film and a method for manufacturing the polymer film. Background Art

[0002] There are many high-strength film materials, such as polyvinyl chloride, ethylene-tetrafluoroethylene, polytetrafluoroethylene, etc. According to the different properties of the material itself, they can be used to make ground film, greenhouse film, packaging film, defensive equipment, toys, decorations, etc., and have a wide range of uses.

[0003] Then, when the existing polymer membrane is used, the membrane material will become moldy and bacteria will gather, and a large number of harmful microorganisms such as bacteria and mold will grow. On the one hand, it affects the service life of the membrane material, and on the other hand, it also causes harm to the health of the user. In the prior art, it is mostly cleaned by ultraviolet irradiation or disinfectant, and some products are used by adding antibacterial agents to the polymer membrane, mostly by adding nano-silver particles, but the antibacterial effect of pure nano-silver particles is short, and the silver nano-particles are easy to fall off, affecting the membrane effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a polymer film and a method for manufacturing the polymer film which are easy to use and have good antibacterial effect.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a polymer film, comprising a polymer film composed of a film substrate, an acrylic copolymer and a functional filler, the film layer substrate is a combination of one or more of polyurethane, polytetrafluoroethylene, and polyetheretherketone, the functional filler is an antibacterial filler, and the antibacterial filler includes a metal filler and a plant filler.

[0006] Preferably, the metal filler is nanosilver particles, the plant filler is a plant antibacterial extract, the particle size of the nanosilver particles is 1-20 nanometers, and the plant antibacterial extract contains one of flavonoid compounds and polyphenol compounds.

[0007] Preferably, the polymer membrane has a thickness of 0.1 to 2 mm and has a porous structure.

[0008] Preferably, the film substrate is a composition of polyurethane, polytetrafluoroethylene and polyetheretherketone, wherein the weight ratio of polyurethane, polytetrafluoroethylene and polyetheretherketone is 10-15:5-8:6-10.

[0009] Preferably, the weight ratio of the polyurethane, polytetrafluoroethylene and polyetheretherketone is 12:8:6.

[0010] Preferably, the weight ratio of the polyurethane, polytetrafluoroethylene and polyetheretherketone is 13:7:8.

[0011] On the other hand, the present invention discloses a method for manufacturing a polymer film, comprising the following steps: placing a film substrate into a mixer and stirring and blending to obtain a mixture; mixing the mixture, an acrylic copolymer and a functional filler and adding an alcohol solvent to form a uniform mixed solution; continuing to stir until uniformly dispersed; casting the obtained solution into a film, and heat-treating and stretching it to obtain a polymer film.

[0012] Preferably, the prepared solution further comprises vacuum degassing, and the degassing temperature is 10 to 50°C;

[0013] The drooling film forming process includes drying at 120-150°C, scraping the film with a scraper after drying, and heat treating the scraped film at a temperature of 200-320°C.

[0014] Preferably, the volume ratio of the film substrate to the acrylic copolymer is 0.8:1.

[0015] The advantages of the present invention compared with the prior art are: the antibacterial effects of metal fillers and plant fillers are combined in the present invention to provide more comprehensive and lasting antibacterial protection. At the same time, polyurethane has high wear resistance and can be used for a long time in a variety of environments. Polytetrafluoroethylene increases the high and low temperature resistance of the membrane, and polyetheretherketone further ensures the mechanical properties and chemical stability of the membrane, thereby providing a membrane structure that is easy to use at a certain temperature. DETAILED DESCRIPTION

[0016] References to embodiments of the present invention will now be provided in detail, one or more examples of which are described below. Each example is provided as an explanation rather than a limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used in another embodiment to produce a further embodiment.

[0017] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0018] Except as shown in the operating examples or otherwise indicated, all numbers used in the specification and claims to indicate the amount of ingredients, physicochemical properties, etc. are understood to be adjusted by the term "about" in all cases. For example, therefore, unless otherwise indicated, the numerical parameters listed in the above specification and the attached claims are approximate values, and those skilled in the art can use the teachings disclosed herein to seek to obtain the desired properties and appropriately change these approximate values. The use of numerical ranges expressed as endpoints includes all numbers within the range and any range within the range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4 and 5, etc.

[0019] As shown in combination, a polymer film includes a polymer film composed of a film substrate, an acrylic copolymer and a functional filler, wherein the film layer substrate is a combination of one or more of polyurethane, polytetrafluoroethylene, and polyetheretherketone, the functional filler is an antibacterial filler, the antibacterial filler includes a metal filler and a plant filler, the metal filler is nanosilver particles, the plant filler is a plant antibacterial extract, the particle size of the nanosilver particles is 1-20 nanometers, and the plant antibacterial extract contains one of a flavonoid compound and a polyphenol compound.

[0020] In one embodiment

[0021] The film substrate is a composition of polyurethane, polytetrafluoroethylene and polyetheretherketone, wherein the weight ratio of polyurethane, polytetrafluoroethylene and polyetheretherketone is 10-15:5-8:6-10.

[0022] In one embodiment

[0023] The weight ratio of polyurethane, polytetrafluoroethylene and polyetheretherketone is 12:8:6.

[0024] In one embodiment

[0025] The weight ratio of polyurethane, polytetrafluoroethylene and polyetheretherketone is 13:7:8.

[0026] The present invention is specifically implemented:

[0027] The film substrate is weighed according to the weight ratio, and is put into a mixer for stirring and blending to obtain a mixture. The mixture, the acrylic copolymer and the functional filler are mixed and added into an alcohol solvent. The volume ratio of the film substrate to the acrylic copolymer is 0.8:1 to form a uniform mixed solution, which is continuously stirred until uniformly dispersed. The obtained solution is cast into a film, and then heat-treated and stretched to obtain a polymer film.

[0028] The prepared solution also includes vacuum degassing, the degassing temperature is 10-50°C, the salivation film forming includes drying at 120-150°C, after drying, scraping the film with a scraper, and heat treating the scraped film at a temperature of 200-320°C.

[0029] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The present invention and its implementation methods are described above, and such description is not restrictive. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design structures and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A polymer film, characterized in that: The invention comprises a polymer film composed of a film substrate, an acrylic copolymer and a functional filler. The film substrate is a combination of one or more of polyurethane, polytetrafluoroethylene and polyetheretherketone. The functional filler is an antibacterial filler, which comprises a metal filler and a plant filler.

2. A polymer film according to claim 1, characterized in that: The metal filler is nano silver particles, the plant filler is plant antibacterial extract, the particle size of the nano silver particles is 1-20 nanometers, and the plant antibacterial extract contains one of flavonoid compounds and polyphenol compounds.

3. A polymer film according to claim 1, characterized in that: The thickness of the polymer film is 0.1-2 mm, and the polymer film has a porous structure.

4. A polymer film according to claim 1, characterized in that: The film substrate is a composition of polyurethane, polytetrafluoroethylene and polyetheretherketone, wherein the weight ratio of polyurethane, polytetrafluoroethylene and polyetheretherketone is 10-15:5-8:6-10.

5. A polymer film according to claim 4, characterized in that: The weight ratio of the polyurethane, polytetrafluoroethylene and polyetheretherketone is 12:8:

6.

6. A polymer film according to claim 4, characterized in that: The weight ratio of the polyurethane, polytetrafluoroethylene and polyetheretherketone is 13:7:

8.

7. A method for producing a polymer film, characterized in that: The following steps are involved: The film substrate is put into a mixer and stirred and blended to obtain a mixture. The mixture, acrylic copolymer and functional filler are mixed and added into an alcohol solvent to form a uniform mixed solution, which is continuously stirred until uniformly dispersed. The obtained solution is cast into a film, and then heat-treated and stretched to obtain a polymer film.

8. A method for producing a polymer film according to claim 7: the obtained solution further comprises vacuum degassing, the degassing temperature being 10 to 50°C; The drooling film forming process includes drying at 120-150°C, scraping the film with a scraper after drying, and heat treating the scraped film at a temperature of 200-320°C.

9. The method for producing a polymer film according to claim 7, characterized in that: The volume ratio of the film substrate to the acrylic copolymer is 0.8:1.