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Fire-retardant coating with photo-catalytic performance and preparation method thereof

A technology of fire retardant coating and photocatalysis, applied in fire retardant coating, coating and other directions, can solve the problems of high electron and hole recombination rate, low photocatalytic activity, low light utilization rate, etc., to improve anti-aging performance and photocatalytic performance Low activity, the effect of reducing environmental pollution

Active Publication Date: 2014-06-18
镇江新智生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To improve TiO 2 Wide band gap, low quantum efficiency; low photocatalytic activity after several times of use; high recombination rate of electrons and holes, low utilization rate of visible light, etc.

Method used

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  • Fire-retardant coating with photo-catalytic performance and preparation method thereof
  • Fire-retardant coating with photo-catalytic performance and preparation method thereof
  • Fire-retardant coating with photo-catalytic performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] First add 4.5g dispersant (BYK180 polymer dispersant, m 分散剂 :m 溶剂 =1:10), add 45ml of solvent (water), under high-speed stirring (1500 rpm), add base material (phosphoric acid, aluminum hydroxide) 10ml and filler (ultrafine slag powder, specific surface area 681m 2 / Kg, see Table 1 for the chemical composition of slag powder) 10g, stir for 5min after adding. Then add the pigment (Cu-La / TiO 2 ) 4g, and then stirred for 5min. Reduce the rotation speed to 1000 rpm, add 1g of catalyst (ammonium polyphosphate), 1g of charring agent (pentaerythritol) and 2g of blowing agent (melamine), and stir for about 30min to prepare fireproof white paste.

[0051] Add the above-mentioned fireproof white paste into the paint mixing tank, adjust the rotation speed of the stirring plate to 500 rpm, and then add 0.15g of pre-mixed drier (lead oxide) and 0.25g of drier (zinc powder) and nano-mother solution (nano-SiO 2 mother liquor) 1ml, and stirred for 20 minutes to obtain the required...

Embodiment 2

[0055] First add 35ml of solvent (water) to 3.5g of dispersant (BYK180 polymer dispersant, m dispersant: m solvent = 1:10), and add base material ( Phosphoric acid, aluminum hydroxide) 20ml and filler (ultrafine slag powder, same as Example 1) 16g, stir for 5min after adding. Then add the pigment (Cu-La / TiO 2 ) 6g, and then stirred for about 5min. Reduce the rotation speed to 1000 rpm, add 2g of catalyst (ammonium polyphosphate), 2g of charring agent (pentaerythritol) and 3g of foaming agent (melamine), stir for 30min, and prepare fireproof white paste.

[0056] Add the above-mentioned fireproof white paste into the paint mixing tank, adjust the rotation speed of the stirring plate to 500 rpm, and then add 0.2g of pre-mixed drier (lead oxide) and 0.1g of drier (zinc powder) and nano-mother solution (nano-SiO 2 mother liquor) 7ml, and stirred for 20 minutes to obtain the required fireproof coating with photocatalytic properties using slag.

Embodiment 3

[0058] First add 2.5g dispersant (BYK180 polymer dispersant, m 分散剂 :m 溶剂 =1:10), add 25ml of solvent (water), under high-speed stirring (rotating speed is 1500 rpm), add 15ml of base material (phosphoric acid, aluminum hydroxide) and filler (ultrafine slag powder, same as in Example 1) ) 14g, stir for 5min after the addition. Then add the pigment (Cu-La / TiO 2 ) 8g, and then stirred for about 5min. Reduce the speed to 1000 rpm, add 2g of catalyst (ammonium polyphosphate), 2g of charring agent (pentaerythritol) and 1g of blowing agent (melamine), stir for 30min, and prepare fireproof white paste.

[0059] Add the above-mentioned fireproof white paste into the paint mixing tank, adjust the rotation speed of the stirring plate to 500 rpm, and then add 0.3g of drier (lead oxide) and 0.2g of drier (zinc powder) mixed in proportion in advance and nano-mother solution (nano-SiO 2 mother liquor) 5ml, and stirred for 20 minutes to obtain the required fireproof coating with photocat...

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Abstract

The invention discloses a fire-retardant coating with photo-catalytic performance and a preparation method thereof, belonging to the field of fire-retardant coatings. The coating comprises a base material, a catalyst, a charring agent, a foaming agent, a filler, a pigment, a solvent, a dispersant, a drier, a drying aid, a nano mother solution and the like, wherein the base material is aluminum dihydrogen phosphate, the catalyst is ammonium polyphosphate, the charring agent is pentaerythritol, the foaming agent is melamine, the filler is ultra-fine slag powder, the pigment is Cu-La / TiO2, the solvent is water, the dispersant is a BYK180 polymeric dispersant, the drier is lead oxide, the drying aid is zinc powder, and the nano mother solution is a nano SiO2 mother solution. The fire-retardant coating disclosed by the invention reduces the environment pollution to the maximum extent by using industrial waste residues as the filler; meanwhile, the coating has a function of realizing photocatalytic degradation of formaldehyde gas under a visible light source to endow conventional fire-retardant coatings with a brand-new function, and the fire-retardant coating accords with the development trend of national green ecological building materials.

Description

technical field [0001] The invention belongs to the field of fireproof coatings, and in particular relates to a method of using water-quenched slag as a filler and co-doping modified TiO with metal ions and rare earth ions. 2 As a pigment, the fireproof coating with photocatalytic performance can be prepared by comprehensively utilizing industrial waste residues. Background technique [0002] Water-quenched slag mainly refers to the granulated slag discharged from the iron-making blast furnace. It generally refers to an industrial waste slag that flows out of the high-temperature molten state in the furnace and is quenched by water. It is a glass structure material with high potential activity. As a material "resource" with high energy and high energy consumption, water-quenched slag is far from enough for its comprehensive utilization. Statistics show that although nearly 67% of the slag has been better utilized so far, there is still a large amount of slag that is only us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/18C09D7/12
Inventor 张浩吴胜华黄新杰唐刚刘影
Owner 镇江新智生物科技有限公司
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