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Self-cleaning acrylonitrile butadiene styrene (ABS) sheet with visible-light response and preparation method thereof

A self-cleaning, visible light technology, applied in the direction of radiation-absorbing coatings, coatings, etc., can solve the problems of low reaction efficiency, low utilization rate of visible light, low utilization rate of solar energy, etc., and achieves broad application prospects and excellent photocatalytic degradation performance. , the effect of broad market application prospects

Active Publication Date: 2017-05-17
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently most TiO 2 Photocatalysts generally have problems such as low reaction efficiency and low solar energy utilization rate (it can only absorb ultraviolet light that accounts for less than 5% of the solar spectrum range, while the utilization rate of visible light that accounts for 47% of solar energy is very low) and other problems.

Method used

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  • Self-cleaning acrylonitrile butadiene styrene (ABS) sheet with visible-light response and preparation method thereof
  • Self-cleaning acrylonitrile butadiene styrene (ABS) sheet with visible-light response and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A method for preparing a self-cleaning ABS sheet with visible light response. Put 5 g of melamine in a crucible and put it in a muffle furnace, and calcinate it at 520 °C for 6 hours at a heating rate of 10 °C / min. After natural cooling, collect the obtained Light yellow g-C 3 N 4 powder; take 0.1 g g-C 3 N 4 Disperse in 10mL of methanol, ultrasonic 1h stand-by. Take 9.6g of tetraisobutyl titanate and add it dropwise to 60mL of acetic acid (HAc), and add the sonicated g-C 3 N 4 After stirring the suspension for 0.5h, the solution was transferred to a 100mL hydrothermal kettle and reacted at 150°C for 18h. After the reaction, the product was washed several times with deionized water and ethanol, and dried in an oven at 60°C for 10 hours, and the product was collected to obtain g-C 3 N 4 / TiO 2 Powder; 27gABS (weight-average molecular weight 100000Da, butadiene rubber content 16%, number-average particle diameter 1.4μm) and 6 grams of g-C 3 N 4 / TiO 2 Add it in...

Embodiment 2

[0034] A preparation method of a self-cleaning ABS sheet with visible light response. Put 8g of cyanamide in a crucible and put it into a muffle furnace, and calcinate at 560°C for 5h at a heating rate of 15°C / min. After natural cooling, collect The resulting pale yellow g-C 3 N 4 powder; take 0.2 g g-C 3 N 4 Disperse in 15mL of methanol, ultrasonic 1h stand-by. Take 9.6g of isopropyl titanate and add it dropwise to 60mL of acetic acid (HAc), and add the sonicated g-C 3 N 4After the suspension was stirred for 0.5h, the solution was transferred to a 100mL hydrothermal kettle and reacted at 180°C for 12h. After the reaction, the product was washed several times with deionized water and ethanol, and dried in an oven at 60°C for 10 hours, and the product was collected to obtain g-C 3 N 4 / TiO 2 Powder; 42g ABS (weight average molecular weight 150000Da, butadiene rubber content 13%, number average particle diameter is 0.9μm) and 7 grams g-C 3 N 4 / TiO 2 Add to 278g of ac...

Embodiment 3

[0037] A preparation method of a self-cleaning ABS sheet with visible light response, put 5g of cyanamide and 5g of melamine mixture in a crucible, put it into a muffle furnace, and calcinate at 600°C for 4h at a heating rate of 20°C / min. After cooling, the resulting pale yellow g-C was collected 3 N 4 powder; take 0.3 g g-C 3 N 4 Disperse in 15mL of methanol, ultrasonic 1h stand-by. Take 9.6g of tetraisobutyl titanate and add it dropwise to 60mL of acetic acid (HAc), and add the sonicated g-C 3 N 4 After stirring the suspension for 0.5h, the solution was transferred to a 100mL hydrothermal kettle and reacted at 120°C for 24h. After the reaction, the product was washed several times with deionized water and ethanol, and dried in an oven at 60°C for 10 hours, and the product was collected to obtain g-C 3 N 4 / TiO 2 Powder; 24gABS (weight average molecular weight 200000Da, butadiene rubber content 10%, number average particle diameter is 3μm) and 8 grams of g-C 3 N 4 / ...

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Abstract

The invention relates to a self-cleaning acrylonitrile butadiene styrene (ABS) sheet with visible-light response and a preparation method thereof. The self-cleaning ABS sheet consists of an ABS substrate and a self-cleaning film covering the ABS substrate, wherein the ABS substrate is an ABS sheet with thickness of 0.5-2.5cm, and the self-cleaning film is prepared from ABS resin and g-C3N4 / TiO2. The preparation method comprises the steps of calcining a carbon-containing and nitrogen-rich precursor for 4-6h at the temperature of 520-600 DEG C under the condition that the heating rate is 10-20 DEG C / min, so as to obtain g-C3N4 powder; adding a titanium source into acetic acid, adding g-C3N4 suspending liquid, and carrying out a hydrothermal reaction for 12-24h at the temperature of 120-180 DEG C to obtain the g-C3N4 / TiO2; preparing polymer mother liquor by using ABS and the g-C3N4 / TiO2, and adopting a film coating method to obtain the ABS sheet. Compared with the prior art, the ABS sheet provided by the invention has the advantages of absorbing visible light, being high in photocatalytic activity, realizing efficient and rapid self-cleaning, and the like; the ABS sheet can reduce organic matter pollution, thus being applied to appearance parts such as exterior wall decoration and outdoor equipment.

Description

technical field [0001] The invention belongs to the technical field of ABS-based composite materials, and relates to a self-cleaning ABS sheet with visible light response and a preparation method thereof. Background technique [0002] Acrylonitrile, butadiene and styrene terpolymer (ABS) is currently one of the polymers with the largest output and the widest application. With good mechanical properties and excellent molding processing characteristics, it is widely used in the fields of mechanical parts, household appliances, electronic devices and automobile industry. [0003] With the development of economy and society, ABS products and their composite materials are used more and more widely in modern economic construction, especially in outdoor and decorative materials. However, with the aggravation of environmental pollution, the color and luster of the surface of ABS products will fade due to the deposition of a large amount of oily substances during use. At the same ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D155/02C09D7/12C09D5/32C08L55/02
CPCC08J7/0427C08J2355/02C08J2455/02C08K3/22C08K3/28C08K9/12C08K2003/2241C09D5/32C09D7/62C09D155/02
Inventor 李赵波刘星罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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