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A kind of EVA foaming material of surface loading modified titanium dioxide photocatalyst and preparation method thereof

A technology of foaming materials and surface loading, which is applied in the field of EVA foaming materials and its preparation of surface-loading modified titanium dioxide photocatalysts, which can solve the problem of poor compatibility of EVA, the inability to achieve surface modification of EVA foaming materials, and easy Problems such as shedding, to achieve the effect of inhibiting recombination, increasing light absorption intensity and light absorption range, and avoiding incompatibility

Active Publication Date: 2021-04-27
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Commonly used coating agents or coating films, such as polyvinyl fluoride PVF coating agents and polyurethane PU films, have poor compatibility with EVA. Whether they are compounded under high temperature and high pressure at the end of a film coating machine or a casting machine, they will be uniform after drying. Easy to fall off, resulting in the inability to achieve effective surface modification of EVA foam materials

Method used

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  • A kind of EVA foaming material of surface loading modified titanium dioxide photocatalyst and preparation method thereof
  • A kind of EVA foaming material of surface loading modified titanium dioxide photocatalyst and preparation method thereof
  • A kind of EVA foaming material of surface loading modified titanium dioxide photocatalyst and preparation method thereof

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Embodiment 1

[0030] A method for preparing an EVA foam material with a surface loaded modified titanium dioxide photocatalyst, the specific steps are:

[0031] 1) Add 100 mg of graphene oxide GO to 40 mL of deionized water at room temperature and stir for 2 hours, add 20 mL of ethanol solution dissolved with 600 mg of p-phenylenediamine PPD, and continue stirring for 30 minutes;

[0032] 2) Add 100mg tetrabutyl titanate and 5mg ammonium chloride to 10mL deionized water at room temperature;

[0033] 3) Mix the solutions obtained in steps 1) and 2), and conduct a hydrothermal reaction in a reactor at 140°C for 8 hours, filter and wash the obtained product, and then dry it in a vacuum oven to obtain RGO / TiO 2 ;

[0034] 4) Mix 100 parts by weight of EVA, 3.2 parts by weight of foaming agent AC, 1.2 parts by weight of crosslinking agent DCP, 1.2 parts by weight of zinc oxide, 0.8 parts by weight of stearic acid and 1 part by weight of zinc stearate In a moment rheometer, extrude and knead at...

Embodiment 2

[0038] A method for preparing an EVA foam material with a surface loaded modified titanium dioxide photocatalyst, the specific steps are:

[0039] 1) Add 100 mg of graphene oxide GO to 40 mL of deionized water at room temperature and stir for 2 hours, add 20 mL of ethanol solution dissolved with 600 mg of p-phenylenediamine PPD, and continue stirring for 30 minutes;

[0040] 2) Add 100mg tetrabutyl titanate and 5mg ammonium chloride to 10mL deionized water at room temperature;

[0041] 3) Mix the solutions obtained in steps 1) and 2), and conduct a hydrothermal reaction in a reactor at 140°C for 8 hours, filter and wash the obtained product, and then dry it in a vacuum oven to obtain RGO / TiO 2 ;

[0042] 4) Mix 100 parts by weight of EVA, 3.2 parts by weight of foaming agent AC, 1.2 parts by weight of crosslinking agent DCP, 1.2 parts by weight of zinc oxide, 0.8 parts by weight of stearic acid and 1 part by weight of zinc stearate In a moment rheometer, extrude and knead at...

Embodiment 3

[0046] A method for preparing an EVA foam material with a surface loaded modified titanium dioxide photocatalyst, the specific steps are:

[0047] 1) Add 100 mg of graphene oxide GO to 40 mL of deionized water at room temperature and stir for 2 hours, add 20 mL of ethanol solution dissolved with 600 mg of p-phenylenediamine PPD, and continue stirring for 30 minutes;

[0048] 2) Add 100mg tetrabutyl titanate and 5mg ammonium chloride to 10mL deionized water at room temperature;

[0049] 3) Mix the solutions obtained in steps 1) and 2), and conduct a hydrothermal reaction in a reactor at 140°C for 8 hours, filter and wash the obtained product, and then dry it in a vacuum oven to obtain RGO / TiO 2 ;

[0050] 4) Mix 100 parts by weight of EVA, 3.2 parts by weight of foaming agent AC, 1.2 parts by weight of crosslinking agent DCP, 1.2 parts by weight of zinc oxide, 0.8 parts by weight of stearic acid and 1 part by weight of zinc stearate In a moment rheometer, extrude and knead at...

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Abstract

The invention discloses an EVA foam material with modified titanium dioxide photocatalyst loaded on the surface and a preparation method thereof, belonging to the field of polymer composite foam materials. The present invention uses a hydrothermal method to prepare RGO / TiO in one step 2 Composite catalyst, and dopamine has self-polymerization film-forming characteristics and the reducibility of polydopamine, so that it can be combined with RGO / TiO 2 The hydrogen bonding between RGO / TiO 2 Composite photocatalyst self-assembled on the surface of EVA to prepare surface-loaded RGO / TiO 2 The EVA foam material, which improves the degradation ability of the foam material to organic macromolecules, and its preparation method is simple to operate, avoiding the incompatibility between the later coating film and the foam material, and has huge social and economic benefits in practical applications. benefit.

Description

technical field [0001] The invention belongs to the field of macromolecule composite foaming materials, and in particular relates to an EVA foaming material with a modified titanium dioxide photocatalyst loaded on the surface and a preparation method thereof. Background technique [0002] Society is developing at a high speed, but the status quo of resources and environment is deteriorating. Taking the indoor environment as an example, a wide variety of interior decoration materials currently contain xylene, toluene, formaldehyde CH 2 VOC substances such as O and acetone have long-term health hazards to the human body. As one of the most widely used organic foam materials, EVA foam products are naturally put forward by people with more product performance requirements. Therefore, a healthy and non-toxic EVA foam material with photocatalytic self-cleaning function and wide range of use has been developed. becomes very important. [0003] Titanium dioxide is considered to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/22C08K5/09C08K5/098C08K5/14C08J9/10C08J9/40B01J31/38C02F1/30C02F101/34C02F101/36C02F101/38
CPCC08J9/103C08J9/40C08J9/405C08J9/0095C08J9/0066C08J9/0023B01J31/38C02F1/30C02F2305/10C02F2101/308C02F2101/34C02F2101/36C02F2101/38C08J2203/04C08J2323/08C08K13/02C08K2003/2296C08K5/14C08K5/09C08K5/098B01J35/39
Inventor 郑玉婴胥荣威
Owner FUZHOU UNIV