Foaming masterbatch with photocatalytic function and preparation method of foaming masterbatch

A foaming masterbatch and photocatalytic technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc.

Active Publication Date: 2017-08-29
SHANXI LANHUA HUAMING NANO MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When forming a photocatalytic composite material, larger particles are also beneficial to avoid t

Method used

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  • Foaming masterbatch with photocatalytic function and preparation method of foaming masterbatch
  • Foaming masterbatch with photocatalytic function and preparation method of foaming masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The masterbatch component consists of 60 parts of composite photocatalyst, 25 parts of carrier resin LDPE, 3 parts of dispersant polyethylene low molecular weight wax, 1 part of silane coupling agent (KH-550), 3 parts of lubricant stearic acid, activated foaming agent Makes up 8 servings.

[0075] The preparation method is to carry out according to the following steps:

[0076] (1) Under the condition of pH 6, 1 kg of n-butyl titanate was hydrolyzed, stirred at room temperature for 3 h, and adjusted by dialysis to obtain TiO with a pH value of 7. 2 Sol.

[0077] (2) Add 10kg of calcium carbonate and 0.1kg of biomass ash (plant ash: seaweed ash mass ratio = 1:5) into a high-speed mixer and stir at high speed, then add 0.1kg of TiO prepared in step (1) 2 Sol, control the speed of 600 r / min, heat at 100°C to remove water, and then add 0.1kg of TiO prepared in step (1) when the water is less 2 The sol was repeated 5 times to obtain a coated powder with high dispersion an...

Embodiment 2

[0083] The masterbatch component consists of 60 parts of composite photocatalyst, 20 parts of carrier resin LDPE, 3.5 parts of dispersant polyethylene low molecular weight wax, 1 part of silane coupling agent (KH-550), 3.5 parts of lubricant stearic acid, activated foam The composition consists of 12 parts.

[0084] The preparation method is to carry out according to the following steps:

[0085] (1) Under the condition of pH 6, 1 kg of n-butyl titanate was hydrolyzed, stirred at room temperature for 3 h, and adjusted by dialysis to obtain TiO with a pH value of 7. 2 Sol.

[0086] (2) Add 10kg of calcium carbonate and 0.2kg of biomass ash (plant ash: seaweed ash mass ratio = 1:5) into a high-speed mixer and stir at high speed, then add 0.1kg of TiO prepared in step (1) 2 sol, control the speed at 600 r / min, heat at 100°C to remove water, add 0.1 kg of TiO2 sol prepared in step (1) when the moisture is low, and repeat 5 times to obtain highly dispersed and high-loaded TiO2 so...

Embodiment 3

[0090] The masterbatch component consists of 70 parts of composite photocatalyst, 15 parts of carrier resin LDPE, 3.5 parts of dispersant polyethylene low molecular wax, 1.5 parts of silane coupling agent (KH-550), 2 parts of lubricant stearic acid, activated foam The composition consists of 8 parts.

[0091] The preparation method is to carry out according to the following steps:

[0092] (1) Under the condition of pH 6, 1 kg of n-butyl titanate was hydrolyzed, stirred at room temperature for 3 h, and adjusted by dialysis to obtain a TiO2 sol with a pH value of 7.

[0093] (2) Add 10kg of calcium carbonate and 0.2kg of biomass ash (plant ash: seaweed ash mass ratio = 1:5) into a high-speed mixer and stir at high speed, then add 0.12kg of TiO2 sol prepared in step (1), and control the speed 600 r / min, heat at 100°C to remove water, add 0.12kg of TiO2 sol prepared in step (1) when the moisture is low, and repeat 5 times to obtain a coated powder with high dispersion and high l...

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Abstract

The invention discloses a foaming masterbatch with a photocatalytic function and a preparation method of the foaming masterbatch. The foaming masterbatch with the photocatalytic function is characterized by being prepared from 50-70 parts of a composite photocatalyst, 15-20 parts of carrier resin, 3-5 parts of a dispersing agent, 0.5-2 parts of a coupling agent, 1-2 parts of a lubricant and 1-20 parts of a foaming activator; inorganic powder is 100-5000 meshes in size and is one or a mixture of several of calcium carbonate, barium sulfate, kaoline, wet white carbon black, quartz powder, talcum powder, calcium silicate and mica; the method comprises the steps of taking polyolefin resin as a carrier, and adding the composite photocatalyst, the foaming activator, the dispersing agent, the coupling agent and the lubricant for extrusion and granulation. A photocatalytic material prepared from the masterbatch has the advantages that the material is high in catalytical efficiency and light in weight and can be recycled. The method is lower in cost, a preparation technology is simple, and industrialization can be achieved.

Description

technical field [0001] The invention belongs to the environmental protection field of waste water and waste gas treatment, and in particular relates to a foam masterbatch with photocatalytic function and a preparation method thereof. Background technique [0002] TiO 2 It is a typical photocatalyst with excellent physical and chemical properties such as non-toxic, cheap and easy to obtain, stable chemical properties and high photocatalytic activity. It is widely used in photocatalytic water splitting, photodegradation of pollutants, solar cells and other fields. Under normal temperature conditions, hydroxyl radicals OH, superoxide ions O 2 - , hydroperoxy·HO 2 etc. have strong redox active groups, which can directly degrade organic matter into CO 2 and H 2 Inorganic small molecules such as O. Due to TiO 2 There are problems of narrow light absorption wavelength range and high recombination rate of photogenerated carriers, which limit its application. Modifying it is ...

Claims

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Application Information

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IPC IPC(8): B01J31/38B01J35/10C02F1/30C02F101/38C02F101/34C02F101/36
CPCY02W10/37B01J31/38B01J35/004B01J35/1004C02F1/30C02F2101/34C02F2101/36C02F2101/38C02F2305/10
Inventor 张红光杨松伟陈庆华吴仲涛杨裕金李富林
Owner SHANXI LANHUA HUAMING NANO MATERIALS
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