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Three layered composite film for purifying and preventing the air and the preparing method and the application

A technology of purifying air and layer composite, applied in chemical instruments and methods, separation methods, semi-permeable membrane separation, etc. The effect of strong air purification function

Active Publication Date: 2007-09-26
宁波曦昀高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In the above-mentioned many patents, although the synthetic resins, inorganic fillers and pore-forming methods used are different, the waterproof and breathable (wet) properties are also different, and they all have certain waterproof and breathable (wet) functions, but they do not have air purification functions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 1. Preparation of photocatalyst / adsorbent composite

[0057] A, take by weighing each raw material by following parts by weight:

[0058] Nano-TiO 2 5 copies, ACF 95 copies;

[0059] b. Nano-TiO was dispersed by ultrasonic dispersion 2 (20-60nm in diameter) powder is directly dispersed in water to prepare a slurry with an aggregate size of less than 100nm and a solid content of 6%, and ACF (1-10μm in diameter and 100-150μm in length respectively) is used for the slurry The material is dip-coated 3 times, and after each dip-coating, it is baked at 150-160°C and vacuum for 4 hours to obtain a photocatalyst / adsorbent composite;

[0060] 2. Add the inorganic fillers listed in Table 1 to the high-speed mixer of the mixing unit (Zhangjiagang Wuhe Machinery Co., Ltd., WH-SRL-Z200 / 500 high-speed / low-speed mixing unit), mix for 3 minutes and then add the materials listed in Table 1. After mixing for 3 minutes, add the photocatalyst / adsorbent complex, lubricant, flame retard...

Embodiment 2

[0063] 1. Preparation of photocatalyst / adsorbent composite

[0064] A, take by weighing each raw material by following parts by weight:

[0065] Nano-TiO 2 5 copies, AC 95 copies;

[0066] b. Nano-TiO was dispersed by ultrasonic dispersion 2 (diameter is below 50nm) powder is directly dispersed in water, and the slurry that the solid content that makes agglomerate size is less than 100nm is 8% is slurried, with 600 order AC dip-coating 3 times with above-mentioned slurry, after each dip-coating, in 150 Bake at ~160°C and vacuum for 4 hours to obtain a photocatalyst / adsorbent composite;

[0067] 2. After carrying out high-speed mixing, low-speed mixing and twin-screw extruder plasticizing extrusion granulation by each component listed in Table 1 according to the same method and conditions as in Example 1, the single-screw extruder is plasticized and extruded. Extended into a sheet with a thickness of 120 μm and a width of 1.6 m, stretch the sheet at 80±2°C through a 2-stag...

Embodiment 3

[0070] 1. Preparation of photocatalyst / adsorbent composite

[0071] A, take by weighing each raw material by following parts by weight:

[0072] Nano-TiO 2 10 copies, ACF 90 copies;

[0073] b. Nano-TiO was dispersed by ultrasonic dispersion 2 (diameter of 20-60nm) powder is directly dispersed in water to prepare a slurry with a solid content of 5% of aggregate size less than 100nm, and ACF (diameter and length of 5 μm or less and 100-120 μm respectively) with the above slurry Dip coating for 3 times, and bake at 150-160°C and vacuum for 4 hours after each dip coating to obtain a photocatalyst / adsorbent composite;

[0074] 2. After carrying out high-speed mixing, low-speed mixing and twin-screw extruder plasticizing extrusion granulation by each component listed in Table 1 according to the same method and conditions as in Example 1, the single-screw extruder is plasticized and extruded. Stretched into a sheet with a thickness of 140 μm and a width of 1.6 m, the sheet was st...

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Abstract

The invention discloses a new three-layer composite film with performances of cleaning air, waterproof, air permeation and moisture permeation for building field, the preparing method and the application. In the invention micro-hole film has air cleaning performance by importing complex of photocatalyst and adsorbent in the micro-hole film and it is used as the middle layer. The micro-hole film is pressed with internal and external layers of non-woven fabrics in heat to prepare the three-layer composite film under the condition of no adhesive. The composite film of invention not only has good waterproof and air (moisture) permeation performances but also has stronger air cleaning performance and it can decompose every kinds of harmful air effectively. The composite film of invention can be used as the liner layer at the inner side of oblique roof without concrete in ecological building where the demand to air in door and circumstance is high. It can be also used as the covering film in building assembly work out of door.

Description

technical field [0001] The invention relates to a building material, in particular to a three-layer composite film with air-purifying and waterproof and breathable (wet) functions, its preparation method and application in the building field, belonging to the building material field. Background technique [0002] A comfortable and healthy indoor environment is one of the important characteristics of ecological buildings. The indoor environment includes indoor air quality (IAQ), thermal environment, light environment and acoustic environment. The damage to IAQ comes from two aspects. One is indoor harmful gases, which mainly come from the synthetic materials used in large quantities in modern living rooms and the living activities of occupants. Indoor harmful gases mainly include hydrogen sulfide, formaldehyde, methyl mercaptan, ammonia, etc. Even if the concentration of these gases is only a few ppm, the harm to human health cannot be ignored. The second is air pollution ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B01D71/06B01D39/00
Inventor 孙建中叶泉友王依建
Owner 宁波曦昀高分子新材料有限公司
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