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Plastic product for removing VOC and odor by using photocatalyst and preparation method thereof

A technology for plastic products and photocatalysts, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of poor photocatalytic effect, difficulty in achieving selective dispersion, etc., to achieve photocatalytic degradation of VOC, promotion, and increase of photocatalyst content. , the effect of avoiding shear damage

Pending Publication Date: 2022-01-25
重庆科聚孚新材料有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide a plastic product and a preparation method that uses photocatalyst to remove VOC and odor, so as to solve the problem that photocatalyst plastic products in the prior art are difficult to achieve selective dispersion, resulting in poor photocatalytic effect

Method used

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  • Plastic product for removing VOC and odor by using photocatalyst and preparation method thereof
  • Plastic product for removing VOC and odor by using photocatalyst and preparation method thereof
  • Plastic product for removing VOC and odor by using photocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, prepare the injection molding machine that adopts photocatalyst to remove the plastic product of VOC and odor, as figure 1 , figure 2 and image 3As shown, it includes a motor 1, an oil cylinder 2, a machine barrel and a mould, which are connected to each other. A screw 7 cooperating with the machine barrel is installed in the machine barrel, and a heating ring 5 is wound outside the machine barrel to facilitate heating and melting of materials in the machine barrel. The cylinder is composed of a feeding section, a compression section and a metering section; the front end of the feeding section is provided with a hopper 3 for matrix resin feeding, the lower part of the hopper 3 is detachable, and a feeding drawer 4 is installed to facilitate the opening and closing of the material feeding step, and the end of the compression section is set The photocatalyst feeding device 6 that is convenient for photocatalyst feeding, the end of the metering section is ...

Embodiment 2

[0033] Embodiment 2, a kind of preparation method that adopts photocatalyst to remove VOC and the plastic product of odor, comprises the following steps:

[0034] A. Prepare raw materials by weight, namely ABS matrix resin: 98 parts, activated carbon as carrier TiO 2 Photocatalyst: 2 parts;

[0035] B. Add the ABS matrix resin into the injection molding machine through the hopper, and the matrix resin first passes through the feeding section of the barrel through the screw, and the temperature of the feeding section of the barrel is 210°C; then enters the compression section (melting section) of the barrel for processing Heating, shear melting, the temperature of the compression section is 210 ° C, at the end of the compression section, activated carbon as the carrier of TiO 2 photocatalyst through figure 2 The shown photocatalyst feeding device enters; the speed of photocatalyst addition is passed as image 3 Control system settings shown.

[0036] C. After the ABS matri...

Embodiment 3

[0037] Embodiment 3, a kind of preparation method that adopts photocatalyst to remove VOC and the plastic product of odor, comprises the following steps:

[0038] A. Prepare raw materials by weight, namely ABS matrix resin: 95 parts, activated carbon as carrier TiO 2 Photocatalyst: 5 parts;

[0039] B. Add the ABS matrix resin into the injection molding machine through the hopper, and the matrix resin first passes through the feeding section of the barrel through the screw, and the temperature of the feeding section of the barrel is 200°C; then enters the compression section (melting section) of the barrel for processing Heating, shearing and melting, the temperature of the compression section is 220°C, at the end of the compression section, the photocatalyst enters through the photocatalyst feeding device; the speed of photocatalyst addition is set by the control system.

[0040] C. After the ABS matrix resin is fully melted, it enters the metering section together with the ...

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Abstract

The invention discloses a plastic product for removing VOC and odor by using a photocatalyst and a preparation method thereof, and belongs to the technical field of environment-friendly materials. The plastic product is prepared from 90-99.9 parts by weight of matrix resin and 0.1-10 parts by weight of a photocatalyst through melting, mixing and extrusion molding, wherein the photocatalyst is composed of a nano-scale oxide and an adsorbent. The photocatalyst is added from a photocatalyst feeding device close to the metering section of an injection molding machine, so that the integrity of the size of a carrier adsorbent of the photocatalyst in the preparation process is greatly reserved, a considerable part of the photocatalyst is selectively dispersed on the surface layer of the plastic, the content of the photocatalyst on the surface layer is increased, and therefore, the photocatalytic rate of the ABS product is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection materials, and in particular relates to a plastic product and a preparation method using a photocatalyst to remove VOC and odor. Background technique [0002] Plastics are widely used in automobiles, home appliances, construction, office equipment, machinery and other fields due to their advantages such as low density, light texture, easy molding, corrosion resistance, and high cost performance. However, the extensive use of plastics has also brought many problems, mainly reflected in the pollution of the environment and the harm to human health, such as volatile organic compound pollution (VOC pollution), which is harmful to the closed environment such as indoors, cars, roadways, and spraying workshops. , In a semi-enclosed environment, VOC seriously endangers people's health. This problem has attracted the attention of the government, major domestic and foreign manufacturers an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08K9/12C08K3/22C08K3/36B01D53/86B01J23/14B01J35/00B29C45/00B29K105/00
CPCC08K9/12C08K3/22C08K3/36B01D53/8668B29C45/0001B01J23/14B01D2257/708B01D2255/802B29K2105/0014C08K2003/2241C08K2201/005C08K2003/2231B01J35/39C08L55/02Y02A50/20
Inventor 刘小林周雷陈健吕强叶淑英付莉红徐旭胡志李福顺肖利群石涛唐良忠刘罡
Owner 重庆科聚孚新材料有限责任公司
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