A sensitive membrane that can effectively improve the response performance to ammonia

A technology of sensitive membrane and ammonia gas, applied in the field of sensitive membrane, can solve the problem that the response performance of ammonia gas cannot be further improved, and achieve the effects of improving the response performance of ammonia gas, reducing the response time and improving the technical effect.

Active Publication Date: 2022-01-14
惠州市鑫亚凯立科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a sensitive film that can effectively improve the response performance to ammonia, which solves the technical problem that the PDADMAC flexible room temperature ammonia sensor in the prior art cannot further improve the response performance to ammonia

Method used

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  • A sensitive membrane that can effectively improve the response performance to ammonia
  • A sensitive membrane that can effectively improve the response performance to ammonia
  • A sensitive membrane that can effectively improve the response performance to ammonia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The sensitive film includes the following raw materials: 30g of In with an average particle size of ≤50nm 2 o 3 Particles, 1.8g of MoO with an average particle size ≤ 50nm 3 Granules, 50mL absolute ethanol, 2.2g polyvinyl alcohol, 50mL PDADMAC, 18mL water-based epoxy resin;

[0032] The preparation method of above-mentioned sensitive film comprises the following steps:

[0033] S1. Take 30g of In with an average particle size ≤ 50nm 2 o 3 Granules, spare;

[0034] S2. Take 1.8g of MoO with an average particle size ≤ 50nm 3 Granules, spare;

[0035] S3. The In in step S1 2 o 3 Particles, MoO in step S2 3 The particles were placed into a ball mill jar together with 50mL of absolute ethanol and 2.2g of polyvinyl alcohol, using zirconium beads with a diameter of 3mm, and the ball-to-material ratio was 5:1. 2 Under protection, ball milling for 3 hours to prepare mixed components;

[0036] S4. Put the mixed components in step S3 first in a vacuum drying oven, and t...

Embodiment 2

[0041] The sensitive film includes the following raw materials: 30g of In with an average particle size of ≤50nm 2 o 3 Particles, 1.5g MoO with average particle size ≤ 50nm 3 Granules, 50mL absolute ethanol, 2g polyvinyl alcohol, 50mL PDADMAC, 20mL water-based epoxy resin;

[0042] The preparation method of above-mentioned sensitive film comprises the following steps:

[0043] S1. Take 30g of In with an average particle size ≤ 50nm 2 o 3 Granules, spare;

[0044] S2. Take 1.5g of MoO with an average particle size ≤ 50nm 3 Granules, spare;

[0045] S3. The In in step S1 2 o 3 Particles, MoO in step S2 3 The particles were placed into a ball mill jar together with 50mL of absolute ethanol and 2g of polyvinyl alcohol, using zirconium beads with a diameter of 3mm, and the ball-to-material ratio was 8:1. 2 Under protection, ball milling for 3 hours to prepare mixed components;

[0046]S4. Put the mixed components in step S3 first in a vacuum drying oven, and then vacuum-...

Embodiment 3

[0051] The sensitive film includes the following raw materials: 30g of In with an average particle size of ≤50nm 2 o 3 Particles, 2.5g of MoO with an average particle size ≤ 50nm 3 Granules, 50mL absolute ethanol, 3g polyvinyl alcohol, 50mL PDADMAC, 15mL water-based epoxy resin;

[0052] The preparation method of above-mentioned sensitive film comprises the following steps:

[0053] S1. Take 30g of In with an average particle size ≤ 50nm 2 o 3 Granules, spare;

[0054] S2. Take 2.5g of MoO with an average particle size ≤ 50nm 3 Granules, spare;

[0055] S3. The In in step S1 2 o 3 Particles, MoO in step S2 3 The particles were placed into a ball mill jar together with 50mL of absolute ethanol and 3g of polyvinyl alcohol, using zirconium beads with a diameter of 3mm, and the ratio of ball to material was 10:1. 2 Under protection, ball milling for 3 hours to prepare mixed components;

[0056] S4. Put the mixed components in step S3 first in a vacuum drying oven, and t...

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Abstract

The invention relates to the technical field of making a flexible room temperature ammonia sensor, and discloses a sensitive film that can effectively improve the response performance to ammonia gas. The sensitive film includes the following raw materials in parts by weight: 30g nanometer In 2 o 3 Particles, 1.5‑2.5g nanometer MoO 3 Granules, 50mL absolute ethanol, 2-3g polyvinyl alcohol, 30-60mL PDADMAC, 15-20mL water-based epoxy resin. The invention solves the technical problem that the PDADMAC flexible room temperature ammonia sensor in the prior art cannot further improve the response performance to ammonia.

Description

technical field [0001] The invention relates to the technical field of making a flexible room temperature ammonia gas sensor, in particular to a sensitive film that can effectively improve the response performance to ammonia gas. Background technique [0002] PDADMAC flexible room temperature ammonia sensor, including PI flexible substrate, firstly cleans the cleaned PI flexible substrate through photolithography, development and primer treatment, and then uses electron beam evaporation method on the surface of PI flexible substrate, first evaporates a layer Cr is used as the adhesion layer, and then a layer of Au is evaporated. After stripping, the Cr adhesion layer and the Au interdigitated electrode layer are obtained. Finally, a layer of PDADMAC sensitive film is coated on the surface of the Au interdigitated electrode layer, that is, the PI-based flexible The room temperature ethanol gas sensor of the substrate; among them, PI is polyimide; PDADMAC is polydimethyl diall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/12
Inventor 不公告发明人
Owner 惠州市鑫亚凯立科技有限公司
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