CN115073751B - Water-based flame-retardant emulsifier and preparation thereof, epoxy resin and epoxy resin composition for color sand joint beautifying agent - Google Patents
Water-based flame-retardant emulsifier and preparation thereof, epoxy resin and epoxy resin composition for color sand joint beautifying agent Download PDFInfo
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Abstract
The invention provides a bi-component epoxy color sand joint beautifying agent composition, which comprises the following components: and (3) a component A: an epoxy resin color sand main agent; and the component B comprises the following components: and (3) a curing agent. Wherein, the component A contains a water-based flame-retardant epoxy emulsifier with the following structure
Description
Technical Field
The invention belongs to the field of epoxy resin, and in particular relates to a water-based flame-retardant emulsifier, an epoxy resin prepared from the water-based flame-retardant emulsifier, a preparation method of the epoxy resin, and an epoxy resin composition for an epoxy color sand joint beautifying agent.
Background
With the vigorous development of building material markets, ceramic tiles, mosaic tiles and stones become the main stream of the present building decoration market. For carrying and storing reasons, the tiles, mosaic tiles and stones are not too large, the tiles, mosaic tiles and stones are required to be formed into a piece of ground, one piece of ground is required to be spliced, a certain gap is required to be reserved when the materials are paved due to thermal expansion and cold contraction of the materials, and seam materials are coated at the gap.
The traditional joint material adopts cement-based joint material, the cement is mainly white cement, the white cement is easy to change color, peculiar smell is easy to generate, bacteria are bred, and indoor pollution is caused.
In order to solve the problem, the reactive resin type joint material is produced, the existing reactive resin type joint material is mainly used for joint filling by epoxy resin or polyurethane, the problems of easy bacteria breeding and color change are solved, the existing reactive type joint agent is mainly an epoxy resin joint agent and mainly derives two types, one type is a resin indoor joint agent, more than 90% of the joint agent is epoxy resin, the joint agent has high hardness and strong toughness, the reaction speed is extremely high, the construction of a double-pipe gun is mainly adopted, but in order to ensure that the joint material can be successfully extruded from the double-pipe gun, a large amount of solvents are required to be supplemented for the system to reduce the viscosity of the system, and the cost is higher due to the too high resin content; the other kind is epoxy color sand joint beautifying agent, a large amount of color sand is supplemented in epoxy resin, the resin consumption is greatly reduced while the strength is ensured, the joint beautifying agent belongs to slow reaction type joint beautifying agent, so that the construction can be realized in a batch scraping mode, and the problem that the joint beautifying agent remained on a table top after batch scraping is difficult to clean is also existed.
As an indoor product, the seam beautifying agent has a necessary requirement on flame retardance, the flame retardance of the product on the market is difficult to achieve, and the seam beautifying agent capable of flame retardance meets the requirements of end consumers.
Patent 104004309A discloses an acrylic ester aqueous epoxy joint beautifying agent, but because water is added into the system as a diluent, the system is necessarily contracted, water is difficult to come out of the inside of the resin, and the problem of prickly heat is necessarily caused after a long time.
Patent 110643067A discloses a flame retardant toughening agent used in a curing agent, but the flame retardant toughening agent is mainly used as a resin indoor joint beautifying agent of a fast reaction system and cannot be applied to an epoxy colored sand joint beautifying agent of a slow reaction system, so that the application range is narrow.
The patent 105255299B discloses a high-solid-content single-component joint beautifying agent, but the single component is inferior to the double component in terms of hardness establishment and tolerance, and a large amount of water is introduced into the system as a solvent, so that the system is contracted and miliaria is caused.
Patent 10970573A discloses a method for realizing flame retardant function by adding flame retardant, and the flame retardant effect can reach UL 94V-0 level, but 50% of flame retardant auxiliary agent is added in the method, solvent in the auxiliary agent is introduced, the solvent is difficult to volatilize in the system, and the mode of adding the auxiliary agent has influence on the long-term hardness and adhesive force of resin.
In view of the above problems, there is a need to develop an epoxy colored sand joint beautifying agent which is easy to clean after construction is completed and has excellent flame retardant property.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the flame-retardant epoxy emulsifier which contains epoxy groups, ethoxy chain segments and phosphorus flame-retardant groups at the same time, so that oily epoxy resin is changed into water-based flame-retardant epoxy resin; meanwhile, in the application process, the water-based flame-retardant epoxy color sand joint beautifying agent with environmental protection, easy construction and excellent performance can be obtained.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
in a first aspect of the present invention, there is provided a water-based flame retardant epoxy emulsifier having a molecular structure comprising an epoxy group, an ethoxy segment and a phosphorus-containing flame retardant group, having the following structure:
therein, R, R 2 An alkyl group selected from H or C1-12, preferably H or C1-4; r is R 1 Selected from benzene rings or alicyclic rings, preferably benzene rings; r is R 3 Selected from H or C1-C10 alkylamines, preferably H; a is selected from H or methyl; n is an integer, and n is not less than 5, preferably 11-180; m is 1-10.
In a second aspect of the present invention, there is provided a method for preparing the above aqueous flame retardant epoxy emulsifier, comprising the steps of:
1) Carrying out esterification reaction on anhydride and polyether shown in a structure of a formula I to obtain a product A-1;
2) Adding alkali into the product A-1 to perform neutralization reaction to obtain a product A-2;
3) Carrying out ring opening reaction on the product A-2 and epoxy resin to obtain a product A-3;
4) Carrying out ring opening reaction on the product A-3 and maleimide substances to obtain a product A-4;
5) And (3) adding the phosphorus-containing flame retardant groups onto maleimide substances through Michael addition to obtain the epoxy flame retardant emulsifier.
In the step 1), the polyether has a structure shown in a formula I:
in the structure of the formula I, R is selected from H or C1-12 alkyl, preferably H or C1-4 alkyl; a is selected from H or methyl; n is an integer, and n is not less than 5, preferably 11-180;
the anhydride is selected from aromatic anhydrides and/or cyclic aliphatic anhydrides, preferably from aromatic anhydrides; the aromatic anhydride is selected from one or more of phthalic anhydride, hexahydrophthalic anhydride, trimellitic anhydride, pyromellitic anhydride or benzophenone-3, 3', 4' -tetracarboxylic dianhydride; the cyclic aliphatic acid anhydride is selected from hydrogenated trimellitic anhydride and/or hydrogenated pyromellitic anhydride;
the molar ratio of the anhydride to the polyether shown in the structure of the formula I is 1-3, preferably 1-1.2;
in some embodiments, the esterification reaction is carried out at 40-140 ℃, preferably 80-130 ℃; the esterification reaction is carried out for 1 to 5 hours, preferably 1 to 3 hours;
no small molecule is generated in the reaction process of the step 1), and the polyether shown in the structure of the formula I has the same molar quantity with the generated product A-1.
In step 2), the molar ratio of the product A-1 to the base is from 1 to 20, preferably from 1.5 to 10;
the base is selected from sodium hydroxide and/or potassium hydroxide;
the neutralization reaction is carried out at 40-140℃for 0.5-5 hours, preferably at 120-140℃for 0.5-3 hours.
In step 3), the epoxy resin has at least two epoxy groups in the molecular structure, the epoxy value is 1mol/100g or less, preferably 0.6mol/100g or less, and in some preferred embodiments, the epoxy resin may be selected from one or more of bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, ethylene glycol-1, 2-diglycidyl ether, diglycidyl phthalate, or diglycidyl hexahydrophthalate, but is not limited to the epoxy resins described above, such as
One or more of E51, E44, E20, preferably E51;
the molar ratio of the epoxy resin to the product A-2 is 1 to 5, preferably 1 to 2;
the ring-opening reaction is carried out at 40-140 ℃ for 1-5h in the presence of a catalyst, preferably at 120-140 ℃ for 1-3h;
the catalyst is selected from one or more of triphenylphosphine and boron trifluoride diethyl etherate;
the catalyst is used in an amount of 0.01 to 2% by weight, preferably 0.05 to 1% by weight, based on 100% by weight of the sum of the mass of the product A-2 and the mass of the epoxy resin.
In step 4), the maleimide material (H on N of maleimide may be substituted, and the general formula is C 4 H 2 R 3 NO 2 Wherein R is 3 At least one imine group selected from H or C1-C10 alkylamines, preferably H), wherein the molar ratio of maleimide to A-3 is 1-3, preferably 1-2; the reaction is carried out at 10-40℃for 10-20 hours, preferably 15-20 hours at 15-20 ℃.
In step 5), the phosphorus-containing flame retardant groups are preferably DOPO groups, and the molar ratio of phosphorus-containing flame retardant groups to A-4 is 1-2:1, a step of; the Michael addition reaction is carried out at a temperature of 80 to 110℃and preferably 100 to 110℃and the reaction is carried out for 1 to 3 hours and preferably 1.5 hours.
In a third aspect of the present invention, there is provided a water-based flame retardant epoxy resin joint compound dispersion (component a) for a water-based flame retardant joint compound, the dispersion comprising the above-described water-based flame retardant epoxy emulsifier, and an epoxy resin composition;
the system composition has the characteristics of high solid content, easy wiping with water after being mixed with the component B, and high weather resistance after the hardness within 48 hours can be established to 60D, and is suitable for the color sand joint beautifying agent industry.
In a fourth aspect, the invention provides a two-component epoxy color sand joint beautifying agent composition, which comprises the following components A and B:
and (3) a component A: an epoxy resin color sand main agent;
and the component B comprises the following components: a curing agent;
wherein the mass ratio of the component A to the component B is (5-10): 1, preferably (8-10): 1;
in the epoxy resin color sand main agent (A component), the relation of each component and the dosage is as follows:
the diluent is selected from one or more of butyl glycidyl ether, C12-C14 alkyl glycidyl ether, 1, 4-butanediol glycidyl ether and phenyl glycidyl ether, preferably butyl glycidyl ether;
the epoxy resin is selected from one or more of bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, ethylene glycol-1, 2-diglycidyl ether, diglycidyl phthalate or diglycidyl hexahydrophthalate, for example
One or more of E51, E44, E20, preferably E51.
The colored sand is selected from one or more of natural colored sand, calcined colored sand, quartz sand and glass sand, preferably calcined colored sand, and more preferably calcined colored sand with 80-200 meshes;
the water-based flame-retardant epoxy emulsifier is prepared by the method;
the toner is selected from metal oxide-based toner and/or mica-based toner, preferably moonlight white.
In the invention, the relation of the components and the dosage of the components in the component B is as follows: 80-89 parts of polyether amine, 5-10 parts of thixotropic agent and 1-5 parts of flow stopping agent;
wherein the molecular weight of the polyetheramine is preferably 100-1000, more preferably 230;
wherein the thixotropic agent is selected from one or more of cellulose ether, fumed silica and bentonite, preferably fumed silica, more preferably fumed a200 hydrophobic fumed silica;
the flow inhibitor is selected from one or more of BYK607 of Pick chemistry, BC-607 of Baichen chemistry and Shanghai De obtained NP607, preferably BYK607.
The preparation method of the epoxy color sand joint beautifying agent composition comprises the following steps:
1) Preparing a component A: uniformly mixing the water-based flame-retardant epoxy resin and the diluent, adding the color sand and the toner, dispersing in vacuum for 0.5-2h, uniformly mixing, and standing at room temperature;
the water-based flame-retardant epoxy resin is a mixture of epoxy resin and a water-based flame-retardant epoxy emulsifier, the epoxy resin and the water-based flame-retardant epoxy emulsifier are fully mixed, the temperature is kept for 2-2.5 hours at 60-80 ℃, and the water-based flame-retardant epoxy resin is obtained after cooling to room temperature.
2) And (3) preparing a component B: uniformly mixing polyether amine, a flow stopping agent and a thixotropic agent, dispersing in vacuum for 0.5-2h, and standing to room temperature.
By adopting the technical scheme, the method has the following technical effects:
(1) The synthesis process adopted in the water-based flame-retardant emulsifier is Michael addition of maleimide, the reaction efficiency is high, and the maleimide can reduce DOPO group lipophilicity, so that the emulsifier modified epoxy resin can react with the water-based curing agent more quickly, thereby achieving high flame-retardant efficiency, and the flame retardance of the product can reach V1 flame-retardant value.
(2) Because the flame-retardant emulsifier is directly modified on the epoxy resin, the system stability is higher, and the phenomena of floating color and low-temperature pulverization of other flame-retardant water-based products added with auxiliary agents are avoided.
(3) The water-based flame-retardant epoxy resin is a high-solid-content low-viscosity system, and most of market samples are added with 5% -10% benzyl alcohol to adjust the viscosity, so that the product has extremely low VOC content and good smell.
(4) The epoxy resin has higher hydrophilicity, and is beneficial to water cleaning in the construction process.
Detailed Description
For a better understanding of the technical solution of the present invention, the following examples are further described below, but the present invention is not limited to the following examples.
The starting materials used in the examples were all conventional in the art and the purity specifications used were analytically or chemically pure.
1. Raw material sources and instrument information in the following examples:
sodium hydroxide: TCI;
trimellitic anhydride: TCI;
hexahydrophthalic anhydride: TCI;
triphenylphosphine: building a level in Xuzhou;
polyetheramine: hounsfield, D230, D400, T403;
epoxy resin: baling petrochemical, E20 (with double epoxy groups, epoxy value of 0.2-0.22mol/100 g); e44 (having a bisepoxy group, an epoxy value of 0.41 to 0.47mol/100 g); e51 (having a bisepoxy group, an epoxy value of 0.52 to 0.54mol/100 g);
polyethylene glycol methyl ether: wanhua chemistry, wanols-mpeg 8000 (represented by the structure of formula I, R=CH 3 ，A＝H，n＝180)；
Polyethylene glycol 1: wanhua chemistry, wanolpeg 6000 (represented by the structure of formula I, R=H, A=H, n=136);
polyethylene glycol 2: wanhua chemistry, wanolpeg 4000 (represented by the structure of formula I, R=H, A=H, n=90);
viscosity tester: brookfield viscometer DV1.
2. The following test methods are adopted in each example of the invention:
(1) Viscosity test: GB/T15357-2014;
(2) Dispersion stability test and shelf life prediction: GT/T5208;
(3) Hardness rate: GB/T2411-2008.
(4) Other properties: GB/T36977-2018 epoxy resin joint compound for preventing cracking during decoration.
Example 1
S1: preparation of aqueous flame-retardant epoxy emulsifier
1) 53g of hexahydrophthalic anhydride and 1000g of polyethylene glycol 1 are added into a reaction kettle to react for 3 hours at 100 ℃ to obtain a product A-1;
2) To 1053g (0.167 mol) of the above-mentioned product A-1, 6.5g of sodium hydroxide was added, and neutralization reaction was carried out at 40℃for 0.5h to obtain a product A-2 (0.167 mol);
3) 180g of epoxy resin E51 is added into the reaction kettle, then 2.5g of triphenylphosphine is added, and the reaction is carried out for 3 hours at the constant temperature of 100 ℃ to obtain the product A-3.
4) The temperature was lowered to room temperature, 16g (0.16 mol) of maleimide was added and reacted for 15 hours to obtain the product A-4.
5) 34.56g (0.16 mol) of DOPO is added into the reaction kettle and reacted for 1h at 100 ℃ to obtain the water-based flame-retardant epoxy emulsifier.
S2: preparation of aqueous flame-retardant epoxy resin
Taking out 10g of the water-based flame-retardant epoxy emulsifier, heating to 80 ℃, preserving heat for 2 hours, adding 90g of epoxy resin E51 after changing into liquid state, stirring for 1 hour at 500rpm, and uniformly mixing to obtain the water-based flame-retardant epoxy resin.
S3: preparation of epoxy color sand joint beautifying agent composition
And (3) preparing a component A: 2g of butyl glycidyl ether, 63g of 120-mesh calcined color sand and 5g of toner (the color is moon silver) are added into 30g of water-based flame-retardant epoxy resin, and the mixture is dispersed for 1h in vacuum to obtain a component A.
And (2) preparing a component B: 80g of D230, 10g of A200 and 1g of BYK607 are mixed uniformly at 300rpm, and 15g of the mixture is taken out as component B.
Example 2
S1: preparation of aqueous flame-retardant epoxy emulsifier
1) 53g of trimellitic anhydride and 2000g of polyethylene glycol methyl ether are added into a reaction kettle to react for 3 hours at 130 ℃ to obtain a product A-1;
2) To 2053g (0.25 mol) of the above-mentioned product A-1, 10g of sodium hydroxide was added to conduct neutralization reaction at 60℃for 0.5 hours to obtain a product A-2 (0.25 mol);
3) 110g of epoxy resin E51 is added into a reaction kettle, then 4.5g of triphenylphosphine is added, and the reaction is carried out for 3 hours at the constant temperature of 130 ℃ to obtain a product A-3.
4) The temperature was lowered to room temperature, and 35g (0.25 mol) of N-ethylamino maleimide was added thereto for reaction for 15 hours to give a product A-4.
5) 108g (0.5 mol) of DOPO is added into the reaction kettle, and the mixture is reacted for 1.5 hours at 110 ℃ to obtain the water-based flame-retardant epoxy emulsifier.
S2: preparing the water-based flame-retardant epoxy resin.
Taking out 5g of the water-based flame-retardant epoxy emulsifier, heating to 80 ℃, preserving heat for 2 hours, adding 90g of epoxy resin E51 after changing into liquid state, stirring for 1 hour at 500rpm, and uniformly mixing to obtain the water-based flame-retardant epoxy resin.
S3: preparation of epoxy color sand joint beautifying agent composition
And (3) preparing a component A: 28g of water-based flame-retardant epoxy resin is added with 2g of butyl glycidyl ether, 67g of 120-mesh calcined color sand and 3g of toner (the color is selected from moon silver), and the mixture is dispersed in vacuum for 1h to obtain the component A.
And (2) preparing a component B: 85g of D230 was mixed homogeneously with 8g of cellulose ether and 3g of BYK607 at 300rpm, and 15g was taken out as component B.
Example 3
1) Adding 100g of trimellitic anhydride and 1000g of polyethylene glycol 2 into a reaction kettle, and reacting for 3 hours at 100 ℃ to obtain a product A-1;
2) 10g of sodium hydroxide was added to 1100g (0.25 mol) of the above-mentioned product A-1 to conduct neutralization reaction at 130℃for 2 hours to obtain product A-2 (0.25 mol);
3) 370g of epoxy resin E44 and then 9.5g of triphenylphosphine were added into the reaction vessel, and the mixture was reacted at a constant temperature of 100℃for 3 hours to obtain A-3.
4) The temperature was lowered to room temperature, and 32g of maleimide was added to react for 20 hours, to obtain the product A-4.
5) 69.12g (0.32 mol) of DOPO is added into the reaction kettle and reacted for 2 hours at 110 ℃ to obtain the water-based flame-retardant epoxy emulsifier.
S2: preparation of aqueous flame-retardant epoxy resin
Taking out 10g of the water-based flame-retardant epoxy emulsifier, heating to 80 ℃, preserving heat for 2 hours, adding 89g of epoxy resin E51 after changing into liquid, stirring for 1 hour at 500rpm, and uniformly mixing to obtain the water-based flame-retardant epoxy resin.
S3: preparation of epoxy color sand joint beautifying agent composition
And (3) preparing a component A: 1g of butyl glycidyl ether, 58g of 120-mesh calcined color sand and 1g of toner (with the color of moon silver) are added into 40g of water-based flame-retardant epoxy resin, and the mixture is dispersed for 1h in vacuum to obtain a component A.
And (2) preparing a component B: 89g of D230 was mixed with 10g of A200 and 1g of B.sub.607 at 300rpm, and 20g of the mixture was taken out as component B.
Comparative example 1
This comparative example differs from example 1 in that: in S3, 30g of the aqueous flame retardant epoxy resin was replaced with 30g of epoxy resin E51.
The properties of the aqueous flame retardant epoxy color sand joint beautifying agents obtained in the above examples and comparative examples were tested as shown in table 1 below:
TABLE 1
From the test results in table 1, it is understood that the epoxy resin of the comparative example does not have flame retardant property and water washability, and the epoxy resin of the example has a hardness build-up speed slightly lower than that of the comparative example, but can satisfy the 60D hardness required by ASTM D2240, and has V1-class flame retardant property and water washability.
Claims (21)
1. An aqueous flame-retardant epoxy emulsifier which has the following structure
Therein, R, R 2 Alkyl selected from H or C1-12; r is R 1 Selected from benzene rings or alicyclic rings; r is R 3 Selected from a linkage or a C1-C10 alkylene amine; a is selected from H or methyl; n is an integer, and n is more than or equal to 5; m is 1-10.
2. The aqueous flame retardant epoxy emulsifier of claim 1 wherein R, R 2 Alkyl selected from H or C1-4; r is R 1 Is benzene ring; n is 11-180.
3. A method of preparing the aqueous flame retardant epoxy emulsifier of claim 1 or 2, comprising the steps of:
1) Carrying out esterification reaction on anhydride and polyether to obtain a product A-1;
2) Adding alkali into the product A-1 to perform neutralization reaction to obtain a product A-2;
3) Carrying out ring opening reaction on the product A-2 and epoxy resin to obtain a product A-3;
4) Carrying out ring opening reaction on the product A-3 and maleimide to obtain a product A-4;
5) And (3) adding the phosphorus-containing flame retardant group to maleimide through Michael addition to obtain the flame retardant epoxy emulsifier.
4. A process according to claim 3, wherein in step 1) the polyether has the structure of formula I:
in formula I, R is selected from H or C1-12 alkyl; a is selected from H or methyl; n is an integer, and n is more than or equal to 5;
the anhydride is selected from aromatic anhydrides and/or cyclic aliphatic anhydrides.
5. The process according to claim 4, wherein in formula I, R is selected from H or C1-4 alkyl; n is 11-180;
the aromatic anhydride is selected from one or more of phthalic anhydride, hexahydrophthalic anhydride, trimellitic anhydride, pyromellitic anhydride or benzophenone-3, 3', 4' -tetracarboxylic dianhydride, and the cyclic aliphatic anhydride is selected from hydrogenated trimellitic anhydride and/or hydrogenated pyromellitic anhydride.
6. The process according to any one of claims 3 to 5, wherein in step 1), the molar ratio of anhydride to polyether is 1 to 3;
the esterification reaction is carried out at 40-140 ℃ for 1-5h.
7. A method according to claim 3, wherein in step 2) the base is selected from sodium hydroxide and/or potassium hydroxide.
8. The process according to claim 3 or 7, wherein in step 2), the molar ratio of the product a-1 to the base is from 1 to 20;
the neutralization reaction is carried out at 40-140 ℃ for 0.5-5h.
9. The method of claim 3, wherein in step 3), the epoxy resin comprises one or more of bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, ethylene glycol-1, 2-diglycidyl ether, diglycidyl phthalate, and diglycidyl hexahydrophthalate.
10. The process according to claim 9, wherein in step 3) the molar ratio of the epoxy resin to the product a-2 is 1 to 5.
11. The process according to claim 3 or 9 or 10, wherein in step 3) the ring-opening reaction is carried out at 40-140 ℃ for 1-5h in the presence of a catalyst;
the catalyst is selected from one or more of triphenylphosphine and boron trifluoride diethyl etherate, and the catalyst is used in an amount of 0.01-2wt% based on 100% of the sum of the mass of the product A-2 and the mass of the epoxy resin.
12. The process according to claim 3, wherein in step 4), the maleimide is of the formula C 4 H 2 R 3 NO 2 Wherein R is 3 Selected from H or C1-C10 alkylene amine.
13. The process according to claim 3 or 12, wherein in step 4), the molar ratio of maleimide to a-3 is 1 to 3;
the ring-opening reaction is carried out at 10-40 ℃ for 10-20h.
14. A method according to claim 3, wherein in step 5), the phosphorus-containing flame retardant group is a DOPO group.
15. The method of claim 3 or 14, wherein in step 5), the molar ratio of phosphorus-containing flame retardant groups to a-4 is 1-2:1, a step of;
the Michael addition reaction is carried out at 80-110℃for 1-3 hours.
16. A bi-component epoxy color sand joint beautifying agent composition comprises the following components:
and (3) a component A: an epoxy resin color sand main agent;
and the component B comprises the following components: a curing agent;
in the epoxy resin color sand main agent, the components and the dosage relationship are as follows:
wherein the aqueous flame retardant epoxy emulsifier is the aqueous flame retardant epoxy emulsifier of any one of claims 1-2 or prepared according to the preparation method of any one of claims 3-15.
17. The epoxy color sand joint-beautifying agent composition according to claim 16, wherein the mass ratio of the component A to the component B is (5-10): 1.
18. the epoxy color sand joint sealing agent composition of claim 16 or 17, wherein the diluent comprises one or more of butyl glycidyl ether, C12-C14 alkyl glycidyl ether, 1, 4-butanediol glycidyl ether, and phenyl glycidyl ether; and/or
The epoxy resin comprises one or more of bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, ethylene glycol-1, 2-diglycidyl ether, diglycidyl phthalate or diglycidyl hexahydrophthalate; and/or
The colored sand comprises one or more of natural colored sand, calcined colored sand, quartz sand and glass sand; and/or
The toner includes metal oxide-based toner and/or mica-based toner.
19. The epoxy color sand joint beautifying agent composition according to claim 16 or 17, wherein the components in the component B have the following relation: 80-89 parts of polyether amine, 5-10 parts of thixotropic agent and 1-5 parts of flow stopping agent.
20. The epoxy color sand joint sealing agent composition of claim 19, wherein the molecular weight of the polyetheramine is 100-1000;
the thixotropic agent is selected from one or more of cellulose ether, fumed silica and bentonite;
the flow inhibitor is one or more selected from BYK607 of Pick chemistry, BC-607 of Baichen chemistry and Shanghai De obtained NP 607.
21. A method of preparing the epoxy color sand joint compound of any one of claims 16-20, comprising:
1) Preparing a component A: fully mixing epoxy resin and a water-based flame-retardant epoxy emulsifier, preserving heat for 2-2.5 hours at 60-80 ℃, uniformly mixing with a diluent, adding color sand and toner, dispersing in vacuum for 0.5-2 hours, uniformly mixing, and standing at room temperature;
2) And (3) preparing a component B: uniformly mixing polyether amine, a flow stopping agent and a thixotropic agent, dispersing in vacuum for 0.5-2h, and standing to room temperature.
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