CN110669442A - Silica sol binder for desulfurization and denitrification of power plant and preparation method thereof - Google Patents
Silica sol binder for desulfurization and denitrification of power plant and preparation method thereof Download PDFInfo
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- CN110669442A CN110669442A CN201911165574.3A CN201911165574A CN110669442A CN 110669442 A CN110669442 A CN 110669442A CN 201911165574 A CN201911165574 A CN 201911165574A CN 110669442 A CN110669442 A CN 110669442A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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Abstract
The invention discloses a silica sol binder for desulfurization and denitrification of a power plant, which comprises the following raw materials in parts by weight: 120 parts of silica sol, 10.5-16.5 parts of modified composition and 10-15 parts of methanol, wherein the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, and the silica content in the silica sol is 10-20wt% and the dispersing agent content is 0.5 wt%; the modified composition is prepared from the following components in percentage by mass (10-12): (1-3): 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent; meanwhile, the invention also discloses a preparation method of the adhesive. The silica sol provided by the invention has the advantages of narrow particle size distribution, stable performance, excellent film-forming performance, heat resistance and weather resistance, and is suitable for being used as a binder for desulfurization and denitrification in a power plant.
Description
Technical Field
The invention relates to the field of preparation of silica sol binders, and particularly relates to a silica sol binder for desulfurization and denitrification of a power plant and a preparation method thereof.
Background
The desulfurization and denitrification catalyst of the power plant is generally inorganic metal or non-metallic oxide, is mostly powdery particles, and can be generally fixed and loaded in order to facilitate engineering use, so that the catalyst is effectively utilized, and the catalytic efficiency and the service life of the catalyst are improved. Binders are also an essential part of the investment casting process.
With the increasing environmental requirements, some countries in the nineties have promoted the development of alcohol-based binders to water-based silica sol binders in the investment casting industry by environmental regulations of "reducing the content of air heavy organic volatile matter".
Silica sol binders have been increasingly studied in various fields. Patent CN101070161A discloses a 'method for preparing high activity composed of superfine silica particles', which uses sodium silicate solution as raw material, firstly passes through cation exchange resin and anion exchange resin, then adds acid into part of silica sol to adjust pH value to 8-11, heats to prepare seed crystal, adds another part of silica sol, and finally prepares high activity silica sol with particle size of 6-12nm, silica 10-30%, sodium oxide of 0.2-0.3% and pH value of 8.5-10.5 through ultrafiltration; the product has small particle size, the aperture of the prepared catalyst is small, the content of sodium ions is high, and the sodium ions can dissolve silicon dioxide at high temperature and collapse pore channels due to the high temperature in the catalytic process, so that the prepared catalyst cannot be used as a catalyst for desulfurization and denitrification. Patent CN101585541A discloses "a method for preparing electronic grade silica sol", which takes silica powder as raw material and comprises two steps: firstly, preparing high-purity silica sol by using silicon powder under the catalysis condition, screening by using an ion screening device, then removing impurities by controlling the flow rate of an exchange solution, and finally adding a stabilizing agent to prepare the electronic grade silica sol. The particle size of the product is 10-20nm, the solid content is about 30%, and the preparation process of silica sol is complex and is not suitable for serving as a catalyst binder due to the slow hydrolysis process of the silicon powder; the particle size is selected by utilizing the particle sieving machine, the energy consumption of the process is large, and the method is not suitable for industrial production. At present, the silica sol binder for desulfurization and denitrification of power plants is already applied industrially, but the silica sol binder has the defects of large volume shrinkage, quick drying, easy cracking of a coating film, poor leveling property and the like in a film forming process, so that the development of the silica sol binder with stable performance, controllable viscosity and simple operation is significant.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the silica sol binder for power plant desulfurization and denitrification and the preparation method thereof.
The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
10.5 to 16.5 portions of modified composition,
10-15 parts of methanol, and the like,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 10-20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass (10-12): (1-3): 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent.
Preferably, the curing accelerator is at least one of aminoalcohols, α -hydroxycarboxylic acids, alkali and/or alkaline earth metal thiocyanates and/or alkaline earth metal halides, glycerol and/or glycerol derivatives; when the curing agent is at least two of amino alcohol, alpha-hydroxycarboxylic acid, alkali metal and/or alkaline earth metal thiocyanate and/or alkaline earth metal halide, glycerol and/or glycerol derivative, the ratio of the components is any ratio.
Preferably, the curing accelerator is prepared from the following components in a mass ratio of (10-20): 1 glycerol and an alkaline earth metal thiocyanate.
Preferably, the curing agent is an amino alcohol.
Preferably, the curing agent is an alkaline earth metal thiocyanate.
Preferably, the amino alcohol is N-methyldiethanolamine.
Preferably, the alkaline earth metal thiocyanate is NaSCN.
Preferably, the silane coupling agent is KH550 or KH 570.
Preferably, the dispersant is any one of sodium hexametaphosphate, sodium tripolyphosphate, citric acid or polyethylene glycol 400.
The preparation method of the silica sol binder for desulfurization and denitrification of the power plant comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 10-20 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6-7 by using hydrochloric acid, sulfuric acid or acetic acid, and stirring and reacting for 60min at the temperature of 60 ℃;
(4) and (4) adding methanol into the product obtained in the step (3), stirring for 5min, and adjusting the viscosity of the system to be 58-62cps at 25 ℃.
The invention has the advantages that:
1. the silica sol provided by the invention has narrow particle size distribution, accounts for 70-80% of the total number of the silica sol distributed in the range of 20-30nm, has stable performance, can control the viscosity of the silica sol through the amount of methanol, and is suitable for being used as a binder for desulfurization and denitrification of a power plant;
2. after the methyl trimethoxy silane, the curing accelerator and the silane coupling agent are adopted to coat and modify the silica sol, the film forming property, the heat resistance and the weather resistance of the product are greatly improved.
Detailed Description
Example 1
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
11.5 parts of a modified composition,
10 parts of methanol, namely 10 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 10wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass of 10: 1: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the mass ratio of the curing accelerator is 10: 1, a mixture of glycerol and NaSCN;
the silane coupling agent is KH 550;
the dispersant is sodium hexametaphosphate.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 10 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6 by using sulfuric acid, and stirring and reacting at 60 ℃ for 60 min;
(4) and (4) adding methanol into the product obtained in the step (3), stirring for 5min, and then adjusting the viscosity of the system to 62cps at 25 ℃.
Example 2
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
11.5 parts of a modified composition,
15 parts of methanol, namely 15 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 12wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass of 10: 1: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the mass ratio of the curing accelerator is 15: 1, a mixture of glycerol and NaSCN;
the silane coupling agent is KH 550;
the dispersing agent is sodium tripolyphosphate.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 12 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6 by using sulfuric acid, and stirring and reacting at 60 ℃ for 60 min;
(4) and (4) adding methanol into the product obtained in the step (3), stirring for 5min, and then adjusting the viscosity of the system to be 58cps at 25 ℃.
Example 3
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
13.5 parts of a modified composition,
12 parts of methanol, namely 12 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 12wt% of silica and 0.5wt% of dispersing agent;
the modified composition comprises the following components in percentage by mass: 3: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the mass ratio of the curing accelerator is 15: 1, a mixture of glycerol and NaSCN;
the silane coupling agent is KH 570.
The dispersant is citric acid.
2. The preparation method of the silica sol binder for desulfurization and denitrification in the power plant is the same as that of the example 2 except that the viscosity is finally adjusted to be 60cps at 25 ℃.
Example 4
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
14.5 parts of a modified composition,
11 parts of methanol, namely methanol, wherein the methanol is methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 15wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in a mass ratio of 12: 2: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the mass ratio of the curing accelerator is 20: 1, a mixture of glycerol and NaSCN;
the silane coupling agent is KH 570.
The dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 15 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6 by using sulfuric acid, and stirring and reacting at 60 ℃ for 60 min;
(4) adding methanol into the product of the step (3), stirring for 5min, and adjusting the viscosity of the system to be 61cps at 25 deg.C.
Example 5
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
10.5 parts of a modified composition,
13 parts of methanol, namely 13 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in a mass ratio of 12: 2: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the curing accelerator is N-methyldiethanolamine which is amino alcohol;
the silane coupling agent is KH 550;
the dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 20 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6 by using sulfuric acid, and stirring and reacting at 60 ℃ for 60 min;
(4) and (4) adding methanol into the product obtained in the step (3), stirring for 5min, and then adjusting the viscosity of the system to 60cps at 25 ℃.
Example 6
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
16.5 parts of a modified composition,
10 parts of methanol, namely 10 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in a mass ratio of 12: 3: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the curing accelerator is NaSCN which is an alkaline earth metal thiocyanate;
the silane coupling agent is KH 550;
the dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant is the same as that of the example 5.
Example 7
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
15.5 parts of a modified composition,
12 parts of methanol, namely 12 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in a mass ratio of 12: 3: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the curing accelerator is glycerol;
the silane coupling agent is KH 550;
the dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant is the same as that of the example 5.
Example 8
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
12 parts of a modified composition, namely 12 parts of,
11 parts of methanol, namely methanol, wherein the methanol is methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass of 10: 1.5: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the curing accelerator is glacial acetic acid and is alpha-hydroxycarboxylic acid;
the silane coupling agent is KH 550;
the dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant is the same as that of the example 5.
Example 9
1. The silica sol binder for desulfurization and denitrification of the power plant comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
12 parts of a modified composition, namely 12 parts of,
15 parts of methanol, namely 15 parts of methanol,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass of 10: 1.5: 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent;
the curing accelerator is a mixture of N-methyldiethanolamine, NaSCN, glycerol and glacial acetic acid in equal mass ratio;
the silane coupling agent is KH 550.
The dispersant is polyethylene glycol 400.
2. The preparation method of the silica sol binder for desulfurization and denitrification of the power plant is the same as that of the example 5.
Performance testing
The physical and chemical properties of the binders obtained in examples 1 to 9 and comparative examples 1 to 9 were examined, and the results are shown in Table 1, wherein the curing accelerators were not added in the examples, the parts by weight of methyltrimethoxysilane and silane coupling agent in the modified composition were not changed, the other examples are the same as examples 1 to 9, and the comparative examples are comparative examples 1 to 9.
The test method comprises the following steps:
and (3) aging resistance testing: under ultraviolet irradiation and at the temperature of 70 ℃ for 1000 hours, testing the tensile strength and the yellowing resistance grade, and measuring the thermal aging resistance by using the tensile strength; the light aging resistance is measured by a yellowing resistance grade, and an SFJJ-2000C type standard light source box (Shanghai Lin New electronics Co., Ltd.) is used for testing the yellowing resistance grade;
tensile strength: implementing the GB/T528-1998 standard; an LJ-5000N tensile machine (a Chengde tester factory) is provided, wherein the tensile machine has the test conditions of room temperature 25 ℃, air humidity 55% and loading speed of 100 mm/min;
peel strength: executing GB/T2791-1995 standard, adopting PET material to make bonding, testing 24-hour final bonding strength, and making material width be 2.5 cm; the test conditions of the tensile machine are that the room temperature is 25 ℃, the air humidity is 55 percent, and the loading speed of the tensile machine is 100 mm/min; LJ-5000N tensile machine (Chengde test machine factory);
table 1 physicochemical property test results of binders
As can be seen from Table 1, the binder provided by the invention has the advantages of high bonding strength, good heat resistance, no yellowing and high particle size concentration, and can be used in desulfurization and denitrification catalysts of power plants. The preparation method of the adhesive is simple and easy to implement. The above-described embodiments are intended to illustrate the substance of the present invention, but are not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a power plant SOx/NOx control uses silica sol binder which characterized in that: the feed comprises the following raw materials in parts by weight:
120 parts of silica sol, namely 120 parts of silica sol,
10.5 to 16.5 portions of modified composition,
10-15 parts of methanol, and the like,
the silica sol consists of hydrophilic fumed silica, a dispersing agent and deionized water, wherein the silica sol contains 10-20wt% of silica and 0.5wt% of dispersing agent;
the modified composition is prepared from the following components in percentage by mass (10-12): (1-3): 0.5 of methyl trimethoxy silane, a curing accelerator and a silane coupling agent.
2. The silica sol binder for desulfurization and denitrification of power plants according to claim 1, wherein: the curing accelerator is at least one of amino alcohol, alpha-hydroxycarboxylic acid, alkali metal and/or alkaline earth metal thiocyanate and/or alkaline earth metal halide, glycerol and/or glycerol derivative.
3. The silica sol binder for desulfurization and denitrification of power plants according to claim 2, wherein: the curing accelerator is prepared from the following components in percentage by mass (10-20): 1 glycerol and an alkaline earth metal thiocyanate.
4. The silica sol binder for desulfurization and denitrification of power plants according to claim 2, wherein: the curing agent is an amino alcohol.
5. The silica sol binder for desulfurization and denitrification of power plants according to claim 2, wherein: the curing agent is alkaline earth metal thiocyanate.
6. The silica sol binder for desulfurization and denitrification of power plants according to claim 2 or 4, which is characterized in that: the amino alcohol is N-methyldiethanolamine.
7. The silica sol binder for desulfurization and denitrification of power plants according to claim 2, 3 or 5, wherein: the alkaline earth metal thiocyanate is NaSCN.
8. The silica sol binder for desulfurization and denitrification of power plants according to claim 1, wherein: the silane coupling agent is KH550 or KH 570.
9. The silica sol binder for desulfurization and denitrification of power plants according to claim 1, wherein: the dispersing agent is any one of sodium hexametaphosphate, sodium tripolyphosphate, citric acid or polyethylene glycol 400.
10. The preparation method of the silica sol binder for desulfurization and denitrification of power plants according to claim 1, 2, 3, 4, 5, 8 or 9, is characterized in that: the method comprises the following steps:
(1) preparing a silica sol solution: adding hydrophilic fumed silica into deionized water, then adding a dispersing agent, stirring for 1h at 60 ℃, and cooling to obtain silica sol with the silica content of 10-20 wt%;
(2) preparation of modified composition: mixing methyltrimethoxysilane, a curing accelerator and a silane coupling agent, and heating and stirring at 30 ℃ for 30min to obtain a composition A;
(3) adding the composition A into the silica sol obtained in the step (1), adjusting the pH value to 6-7 by using hydrochloric acid, sulfuric acid or acetic acid, and stirring and reacting for 60min at the temperature of 60 ℃;
(4) and (4) adding methanol into the product obtained in the step (3), stirring for 5min, and adjusting the viscosity of the system to be 58-62cps at 25 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115253624A (en) * | 2022-08-22 | 2022-11-01 | 哈密市鲁江缘新材料有限公司 | Desulfurizing agent, preparation method and application thereof |
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| KR20140119319A (en) * | 2013-03-28 | 2014-10-10 | 주식회사 에스디비 | Inorganic aqueous binder and inorganic aqueous adhesive comprising the same |
| CN106244063A (en) * | 2016-07-28 | 2016-12-21 | 汪辉 | A kind of high bond strength, ageing-resistant binding agent and the application in reflectorized material |
| CN107151466A (en) * | 2017-06-16 | 2017-09-12 | 杭州惟翔科技有限公司 | Inorganic bond and its manufacture method |
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| CN103958432A (en) * | 2011-12-23 | 2014-07-30 | Sika技术股份公司 | Accelerator |
| KR20140119319A (en) * | 2013-03-28 | 2014-10-10 | 주식회사 에스디비 | Inorganic aqueous binder and inorganic aqueous adhesive comprising the same |
| CN106244063A (en) * | 2016-07-28 | 2016-12-21 | 汪辉 | A kind of high bond strength, ageing-resistant binding agent and the application in reflectorized material |
| CN107151466A (en) * | 2017-06-16 | 2017-09-12 | 杭州惟翔科技有限公司 | Inorganic bond and its manufacture method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115253624A (en) * | 2022-08-22 | 2022-11-01 | 哈密市鲁江缘新材料有限公司 | Desulfurizing agent, preparation method and application thereof |
| CN115253624B (en) * | 2022-08-22 | 2023-11-24 | 哈密市鲁江缘新材料有限公司 | Desulfurizing agent, preparation method and application thereof |
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