Nanometer tungsten oxide photocatalyst paper-base bamboo curtain manufacturing method and product thereof

A technology of nano-tungsten oxide and photocatalyst, which is applied in the direction of chemical instruments and methods, wood layered products, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of photocatalyst light conditions, large bandgap width of TiO2, etc. , the joint effect is not clear, etc., to achieve the effect of easy control of the crystal form, uniform distribution, and small particle size

Inactive Publication Date: 2013-09-04
安吉汉洲竹制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although TiO2 has high activity and stability, but the band gap of TiO2 is large (~3.2eV), it can only be excited by short-wavelength ultraviolet light, and the photoconversion efficiency is very low (less than 4%)
[0006] At home and abroad, there are some studies on the photocatalyst treatment of textile, bamboo and wood materials. Beijing Forestry University recently reported that the use of molecular sieves and nano photocatalysts (TiO2) to form formaldehyde adsorbents to treat wood plywood has achieved certain results, but it is molecular sieves that work. It is still the photocatalyst (TiO2) that works, or the joint effect is not clear. In addition, the light conditions of the photocatalyst are not explained.

Method used

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  • Nanometer tungsten oxide photocatalyst paper-base bamboo curtain manufacturing method and product thereof
  • Nanometer tungsten oxide photocatalyst paper-base bamboo curtain manufacturing method and product thereof
  • Nanometer tungsten oxide photocatalyst paper-base bamboo curtain manufacturing method and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of nano-tungsten oxide photocatalyst water-based emulsion: heat 40% ammonium tungstate solution at 50°C and cool it down, then add ethanol to form the first emulsion; then add cationic surfactant to protect the colloid, and obtain it through mechanical miscible refining the second emulsion;

[0038] Preparation of paper-based bamboo curtains: composite paper-based fibers with bamboo curtains to obtain paper-based bamboo curtains;

[0039] Photocatalyst paper-based bamboo curtain: Spray the second latex liquid onto the paper-based bamboo curtain at a pressure of 0.2 MPa to form a film to obtain nano-tungsten oxide photocatalyst paper-based bamboo curtain.

[0040] The specific process can refer to figure 1 .

[0041] The parameters of the product are: the length of the bamboo curtain is 1.95m, the allowable error is plus or minus 20mm; the width is 1.5, the allowable error is plus or minus 10mm; squareness: diagonal difference <25mm; average gap <0.35mm;

...

Embodiment 2

[0047] Preparation of nano-tungsten oxide photocatalyst water-based emulsion: heat 80% ammonium tungstate solution at 80°C and cool it down, then add ethanol to form the first emulsion; then add cationic surfactant to protect the colloid, and obtain it through mechanical miscible refining the second emulsion;

[0048] Preparation of paper-based bamboo curtains: composite paper-based fibers with bamboo curtains to obtain paper-based bamboo curtains;

[0049] Photocatalyst paper-based bamboo curtain: Spray the second latex solution on the paper-based bamboo curtain under a pressure of 0.3 MPa to form a film to obtain nano-tungsten oxide photocatalyst paper-based bamboo curtain.

Embodiment 3

[0051] Preparation of nano-tungsten oxide photocatalyst water-based emulsion: heat 60% ammonium tungstate solution at 70°C and cool it down, then add ethanol to form the first emulsion; then add cationic surfactant to protect the colloid, and obtain it through mechanical miscible refining the second emulsion;

[0052] Preparation of paper-based bamboo curtains: composite paper-based fibers with bamboo curtains to obtain paper-based bamboo curtains;

[0053] Photocatalyst paper-based bamboo curtain: Spray the second latex liquid onto the paper-based bamboo curtain under a pressure of 0.25 MPa to form a film to obtain nano-tungsten oxide photocatalyst paper-based bamboo curtain.

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Abstract

The invention relates to a paper-base bamboo curtain manufacturing method and a product thereof, in particular to a nanometer tungsten oxide photocatalyst paper-base bamboo curtain manufacturing method and a product thereof. The method sequentially comprises the following steps that (1), ammonium tungstate solutions are heated under 50-80 DEG C and then are cooled, then ethyl alcohol is added into the ammonium tungstate solutions to form a first latex solution, then cationic surface active agents are added to protect colloid, and mechanical mixing dissolving and refining are used for obtaining a second latex solution; (2) paper-base fibers and a bamboo curtain are combined to obtain a paper-base bamboo curtain; (3) the second latex solution obtained in the step (1) is sprayed to the paper-base bamboo curtain obtained through in the step (2) to form a film, and a nanometer tungsten oxide photocatalyst paper-base bamboo curtain is obtained. The parameters of the manufactured bamboo curtain are that each clearance is smaller than 0.35mm in average, the bonding strength is larger than 0.20Mpa, formaldehyde emission is smaller than 0.5mg/L, antibacterial property is higher than 70%, and water content is 7-13%. According to the nanometer tungsten oxide photocatalyst paper-base bamboo curtain, tungsten oxide content in the paper-base bamboo curtain has good function effect in optic self-catalytic degradation Voc, deodorization, antibiosis and sterilization and the like, and cost can be lowered.

Description

technical field [0001] The invention relates to a method for preparing a paper-based bamboo curtain and its products, in particular to a method for preparing a paper-based bamboo curtain with a nanometer tungsten oxide photocatalyst and its products. Background technique [0002] In the past two decades, due to changes in life and work patterns, modern people spend more and more time indoors, and almost 90% of their time is spent indoors. As a result, a large number of "sick buildings" are caused by poor indoor air quality, as well as "Sick Building Syndrome", "Building Related Illness" and "Multiple Chemical Allergies" (Multiple Chemical Allergies) —chemical Sensitivity) is increasing. People have found that due to the widespread use of new building materials, especially chemically synthesized building materials, high-end furniture and household appliances have entered homes and offices one after another, and cosmetics, polishes, air fresheners, insecticides and detergents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/00B32B21/06B01J23/30
Inventor 汪鸣
Owner 安吉汉洲竹制品有限公司
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