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Bamboo product protective film and preparation method thereof

A technology for bamboo products and protective films, applied in coatings, reflective/signal coatings, and biocide-containing paints, etc., can solve the problems of easy aging, inability to effectively protect the integrity of bamboo products, and general corrosion resistance.

Inactive Publication Date: 2022-01-14
阜南县猛发工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because bamboo is rich in cellulose, hemicellulose, lignin, sugar, fat, wax, protein, minerals, etc., it can provide sufficient nutrients for moths and termites, and provide them with living conditions, so bamboo products In the process of use, it is very easy to be eaten by moths. At the same time, when bamboo products are in use, the surface is easy to age. In the existing method, the bamboo products are processed by coating the surface of the bamboo products with a protective measure for the bamboo products, but The existing coatings have general corrosion resistance, poor antibacterial properties, and are easy to age, so that the service life of the coating cannot be well guaranteed, and the quality of bamboo products cannot be effectively protected.

Method used

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  • Bamboo product protective film and preparation method thereof
  • Bamboo product protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Insect repellent microcapsules are made by the following steps:

[0029] Step A1. Add dried chili powder into an ethanol solution with a mass fraction of 95% according to the ratio of material to liquid: 1g: 20mL, heat up to 55°C, perform ultrasonic extraction at a frequency of 50kHz for 45min, then centrifuge for 15min, filter under reduced pressure, and spin evaporate the filtrate to remove ethanol solution to obtain capsaicin;

[0030] Step A2. Add 20g of dried mugwort leaves to 400mL of deionized water, then adjust the pH value to 4.0 with citric acid, soak for 24 hours, ultrasonically extract at 200W for 30 minutes, heat in a water bath at 80°C for 2 hours, filter with gauze while it is hot, and pump the filtrate again Filtrate the supernatant, vacuum freeze-dry to obtain Artemisia argyi extract;

[0031] Step A3: Add 1g of gelatin to 10mL of deionized water at 75°C to obtain a gelatin solution, add 0.2g of capsaicin and 0.3g of Artemisia argyi leaf extract to 2.8...

Embodiment 2

[0034] Antibacterial particles are made by the following steps:

[0035] Step S1, at room temperature, add 65.4 mg of cetyltrimethylammonium bromide into 200 mL of deionized water, stir magnetically for 5 min, add 5 mL of sodium borohydride solution with a concentration of 0.05 mol / L, and stir for 20 min at a speed of 60 r / min Finally, add 2.1 mL of silver nitrate solution with a concentration of 0.1 mol / L dropwise, and control the rate of addition to 1 drop / second. After the addition, continue the reaction for 10 minutes to obtain nano-silver colloids. Add 50 mL of absolute ethanol to the nano-silver colloids. Adjust the pH value to 4 with glacial acetic acid, then add 0.32mL tetrabutyl titanate, stir at 100r / min for 2h, then centrifuge at 3000r / min for 15min, wash the precipitate with deionized water 3 times, and finally dry it in an oven at 25°C for 20min , calcined at 500°C for 1 h, cooled to obtain hybrid particles;

[0036] Step S2, ultrasonically disperse 0.3g of hybri...

Embodiment 3

[0038] Insect repellent microcapsules are made by the following steps:

[0039] Step A1. Add dried chili powder into an ethanol solution with a mass fraction of 95% according to the ratio of material to liquid: 1g: 20mL, heat up to 55°C, perform ultrasonic extraction at a frequency of 55kHz for 60min, then centrifuge for 15min, filter under reduced pressure, and remove the ethanol by rotary evaporation of the filtrate solution to obtain capsaicin;

[0040] Step A2. Add 20g of dried mugwort leaves to 600mL of deionized water, then adjust the pH value to 4.0 with citric acid, soak for 24 hours, ultrasonically extract with a power of 200W for 30 minutes, heat in a water bath at 80°C for 2 hours, filter with gauze while it is hot, and pump the filtrate again Filtrate the supernatant, vacuum freeze-dry to obtain Artemisia argyi extract;

[0041] Step A3: Add 1 g of gelatin to 10 mL of deionized water at 80°C to obtain a gelatin solution, add gum arabic to deionized water to obtain a...

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Abstract

The invention relates to a bamboo product protective film, and belonging to the technical field of bamboo product protection. The protective film is prepared from the following raw materials by weight: 30-35 parts of waterborne epoxy resin, 1-3 parts of insect repellent microcapsules, 1 part of antibacterial particles, 1-5 parts of waterborne polyurethane, 7-12 parts of a coalescing agent, 1-2 parts of a defoaming agent, 0.1-1 part of a leveling agent, 2-4 parts of a curing agent, 1-5 parts of dimethylethanolamine, and 15-30 parts of deionized water. The invention also discloses a preparation method of the bamboo product protective film. The method comprises the following steps: firstly preparing nano-silver hybridized titanium dioxide ions, carrying out KH-550 modification treatment to obtain the antibacterial particles, preparing the insect repellent microcapsules by taking capsaicin and folium artemisiae argyi extract as core materials and gelatin and Arabic gum as wall materials, and jointly adding the insect repellent microcapsules and the antibacterial particles into the protective film to prepare the bamboo product protective film. The protective film is endowed with a long-term and efficient antibacterial effect.

Description

technical field [0001] The invention belongs to the technical field of bamboo product protection, and in particular relates to a bamboo product protective film and a preparation method thereof. Background technique [0002] Products made from bamboo are currently very popular, such as bamboo flooring and bamboo furniture, which have become more popular in recent years. However, because bamboo is rich in cellulose, hemicellulose, lignin, sugar, fat, wax, protein, minerals, etc., it can provide sufficient nutrients for moths and termites, and provide them with living conditions, so bamboo products In the process of use, it is very easy to be eaten by moths. At the same time, when bamboo products are in use, the surface is easy to age. In the existing method, the bamboo products are processed by coating the surface of the bamboo products with a protective measure for the bamboo products, but The existing coatings have general corrosion resistance, poor antibacterial properties...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D175/04C09D5/14C09D7/20C09D5/33C09D5/32
CPCC09D163/00C09D5/14C09D7/20C09D7/67C09D7/70C09D5/004C09D5/32C08K2003/0806C08K2201/011C08K2003/2241C08K2201/005C08L75/04C08K9/10C08K5/20C08K5/0058C08K9/06C08K3/08C08K3/22
Inventor 李明李东猛
Owner 阜南县猛发工艺品有限公司
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