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Antibacterial polyurethane film and preparation method thereof

A technology of polyurethane film and water-based polyurethane, applied in the field of polyurethane film, can solve problems such as low safety and poor antibacterial properties, and achieve the effects of content optimization, good waterproofness and breathability, and safe use.

Inactive Publication Date: 2014-07-16
盐城金桂源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the antibacterial effect of the polyurethane film added with the above chemical substances has a certain antibacterial effect under certain conditions, its antibacterial performance is generally not good.
Because its antibacterial mechanism is to use its toxicity to kill microorganisms, it is not safe to use

Method used

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  • Antibacterial polyurethane film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: at first, with the mass meter of aqueous polyurethane resin 10% bamboo charcoal powder, 4% nano-titanium dioxide and KH570 (gamma-methacryloxypropyltrimethoxysilane) that accounts for 6% of nano-titanium dioxide quality General trade name) in an organic solvent composed of 15% methyl ethyl ketone, 25% toluene and 25% N,N-dimethylformamide based on the quality of water-based polyurethane resin, and ultrasonically dispersed for 5 minutes to prepare a loaded nano-slurry. Next, 1% of the OK-412 matting powder based on the mass of the water-based polyurethane resin was added to the above-mentioned loaded nano-slurry, and a mixed solution was formed under the stirring of a high-speed mixer at 2500 rpm. And the water-based polyurethane resin is fully mixed with 0.4% ZBJ-002 and 0.4% ZBJ-003 based on the mass of the water-based polyurethane resin under the stirring of a mixer with a rotation speed of 1000rpm to form a mixed resin. Then, add the mixed solution to t...

Embodiment 2

[0031] Embodiment 2: at first, with the mass meter of water-based polyurethane resin 15% bamboo charcoal powder, 5.5% nano-titanium dioxide and KH550 (the general brand name of gamma-aminopropyltriethoxysilane) that accounts for 7% of nano-titanium dioxide quality Based on the quality of water-based polyurethane resin, the organic solvent composed of 20% methyl ethyl ketone, 15% toluene and 35% N,N-dimethylformamide was ultrasonically dispersed for 6 minutes to prepare the loaded nano slurry. Next, 2% of the OK-412 matting powder based on the mass of the water-based polyurethane resin was added to the above-mentioned loaded nano-slurry, and a mixed solution was formed under the stirring of a high-speed mixer at 2800 rpm. And the water-based polyurethane resin is fully mixed with 0.6% ZBJ-002 and 0.6% ZBJ-003 based on the mass of the water-based polyurethane resin under the stirring of a mixer with a rotation speed of 1200rpm to form a mixed resin. Then, according to the additi...

Embodiment 3

[0032]Embodiment 3: at first, with the mass meter of waterborne polyurethane resin 20% bamboo charcoal powder, 6% nano-titanium dioxide and KH560 (γ-glycidyl ether oxypropyl trimethoxysiloxane) accounting for 8% of nano-titanium dioxide quality General trade name) was ultrasonically dispersed for 7 minutes in an organic solvent composed of 20% methyl ethyl ketone, 15% toluene and 35% N,N-dimethylformamide based on the quality of water-based polyurethane resin to prepare a loaded nano-slurry. Next, 1% of the OK-412 matting powder based on the mass of the water-based polyurethane resin was added to the above-mentioned loaded nano-slurry, and a mixed solution was formed under the stirring of a high-speed mixer at 3000 rpm. And the water-based polyurethane resin is fully mixed with 0.45% ZBJ-002 and 0.4% ZBJ-003 based on the mass of the water-based polyurethane resin under the stirring of a mixer with a rotation speed of 1300rpm to form a mixed resin. Then, according to the additi...

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Abstract

The invention discloses an antibacterial polyurethane film and a preparation method thereof. The antibacterial polyurethane film comprises waterborne polyurethane resin as well as 10-30% of bamboo charcoal powder, 4-12% of nano titanium dioxide, 1-2% of extinction powder, 0.4-0.6% of a flatting agent and 0.4-0.6% of a peeling aid based on waterborne polyurethane resin, 6-14% of a silane coupling agent based on nano titanium dioxide and the balance of an organic solvent. According to the polyurethane film disclosed by the invention, by taking the waterborne polyurethane resin as a film forming matter and by compounding and adding the bamboo charcoal powder and the nano titanium dioxide into the waterborne polyurethane resin, the nano titanium dioxide is loaded in the bamboo charcoal powder, so that the antibacterial performance of the polyurethane film is good and superior to the total effect of the two which are independently used. The nano titanium dioxide and the bamboo charcoal powder are non-toxic in the antibacterial process, so that the antibacterial polyurethane film is safe to use. In addition, by optimizing the contents of the raw materials, the antibacterial polyurethane film has good waterproofness and air permeability.

Description

technical field [0001] The invention relates to the technical field of polyurethane films, in particular to an antibacterial polyurethane film and a preparation method thereof. Background technique [0002] In recent years, polyurethane films have been more and more used in the preparation of ready-made garments and fashions. The garments made of breathable polyurethane film materials not only have breathing function, but also can be antistatic; polyurethane films are used in sportswear and products to make diving suits, swimming clothing, rhythm clothing and air drop clothing, inflatable water beds, ball liners, kayaks, life buoys and other fabrics and inner materials. The newly developed shape-memory polyurethane film has good crystallinity, and the blocks are aggregated into micro-domains to act as physical cross-linking points to control the shape fixation and recovery of shape-memory polyurethane. The shape-memory temperature of these shape-memory polyurethanes is set a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L83/04C08L83/12C08K13/06C08K9/12C08K9/06C08K3/04C08K3/22C08K3/36C08J9/00C08J5/18
Inventor 巫永裕
Owner 盐城金桂源新材料科技有限公司
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