Anti-formaldehyde stain-resistant interior wall full-batch powder and preparation method thereof

Abstract

The invention relates to the technical field of building coatings, in particular to anti-formaldehyde stain-resistant interior wall full-batch powder, which is prepared from the following components in parts by mass: 8 to 12 parts of titanium dioxide, 62 to 86 parts of talc, 84 to 96 parts of calcium carbonate, 56 to 82 parts of organic bentonite, 200 to 260 parts of deionized water, 12 to 16 parts of coalescing agent, 240 to 300 parts of acrylic emulsion and 13 to 17 parts of ethylene glycol solvent. Through combination of titanium dioxide and talc, the problems of high price and industrial pollution of titanium dioxide are solved on the other hand, meanwhile, the covering power and oil absorption of the titanium dioxide are equivalent to those of rutile type titanium dioxide after combination of titanium dioxide and talc, and the performance of the coating can be further improved by additionally adding a proper amount of calcium carbonate and organic bentonite. The coating film is further filled, the thickness is increased, the durability and hardness of the coating film are improved, the shrinkage rate of the coating film is reduced, and the cracking degree of the coating film is improved, so that the wall surface with the coating film can be antibacterial, anti-fouling and washable.

Description

Technical Field

[0001] The invention relates to the technical field of building coatings, in particular to a formaldehyde-resistant and stain-resistant interior wall full-batch powder and a preparation method of the formaldehyde-resistant and stain-resistant interior wall full-batch powder. Background Art

[0002] In the process of interior decoration, wall coatings are one of the important materials and are receiving more and more attention. In addition to water-based and environmentally friendly requirements, people also put forward more functional requirements for wall coatings. For example, the walls of certain specific occasions in hospitals are easily contaminated by blood stains, medical reagents, oil stains, etc. Therefore, these walls are required to be antibacterial, anti-fouling and washable.

[0003] Titanium dioxide is usually added to paint to improve the deodorizing and sterilizing functions of the paint. However, using titanium dioxide alone as a paint will cause the paint to have defects in other aspects, which is not conducive to its use on walls in certain specific occasions in hospitals. Summary of the invention

[0004] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0005] A formaldehyde-resistant and stain-resistant interior wall full-batch powder, comprising the following components in parts by mass:

[0006] The titanium dioxide is 8-12 parts, the talc is 62-86 parts, the calcium carbonate is 84-96 parts, the organic bentonite is 56-82 parts, the deionized water is 200-260 parts, the film-forming aid is 12-16 parts, the acrylic emulsion is 240-300 parts and the ethylene glycol solvent is 13-17 parts.

[0007] As an improvement of the above technical solution, the following components by mass are also included:

[0008] The coloring matter is 5-8 parts;

[0009] The coloring material comprises any combination of the following components:

[0010] Red iron oxide, yellow iron oxide and phthalocyanine blue.

[0011] As an improvement of the above technical solution, the following components are included in parts by mass:

[0012] The titanium dioxide is 8 parts, the talc is 62 parts, the calcium carbonate is 84 parts, the organic bentonite is 56 parts, the deionized water is 200 parts, the film-forming aid is 12 parts, the acrylic emulsion is 240 parts and the ethylene glycol solvent is 13 parts.

[0013] As an improvement of the above technical solution, the following components are included in parts by mass:

[0014] The titanium dioxide is 10 parts, the talc is 74 parts, the calcium carbonate is 90 parts, the organic bentonite is 79 parts, the deionized water is 230 parts, the film-forming aid is 14 parts, the acrylic emulsion is 270 parts and the ethylene glycol solvent is 15 parts.

[0015] As an improvement of the above technical solution, the following components are included in parts by mass:

[0016] The titanium dioxide is 12 parts, the talc is 86 parts, the calcium carbonate is 96 parts, the organic bentonite is 82 parts, the deionized water is 260 parts, the film-forming aid is 16 parts, the acrylic emulsion is 300 parts and the ethylene glycol solvent is 17 parts.

[0017] A method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder comprises the following steps:

[0018] Step S100, grinding talc, calcium carbonate, and organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size;

[0019] Step S200, blending and grinding the talc powder and titanium dioxide, adding deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry;

[0020] Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion into talc-titanium dioxide composite particle slurry and stirring well;

[0021] Step S400, after standing, a talc-titanium dioxide coating is obtained.

[0022] As an improvement of the above technical solution, in step S100, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and the ethylene glycol solvent is distributed according to the mass ratio of talc, calcium carbonate and organic bentonite;

[0023] After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite were stirred respectively and then ground.

[0024] As an improvement of the above technical solution, in step S100, the fineness of the talc powder, calcium carbonate powder and organic bentonite powder is not less than 800 mesh.

[0025] As an improvement of the above technical solution, in step S200, the co-grinding is achieved by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering.

[0026] As an improvement of the above technical solution, in step 300, the calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion are sequentially added to the talc-titanium dioxide composite particle slurry, and the talc-titanium dioxide composite particle slurry is continuously stirred during the adding process, and the stirring condition is: 120r / min, and stirring is continued for 3min after all are added;

[0027] Wherein, the coloring material is selectively added in this step.

[0028] Beneficial effects of the present invention:

[0029] The present invention not only solves the high price and industrial pollution of titanium dioxide from another aspect by combining titanium dioxide and talc, but also has the hiding power and oil absorption amount equivalent to those of rutile titanium dioxide after the combination of the two. In addition, the additional appropriate amount of calcium carbonate and organic bentonite can further improve the coating performance, further fill the coating film, increase the thickness, improve the durability and hardness of the coating film, reduce the shrinkage rate of the coating film, and improve the degree of cracking of the coating film, so that the wall surface with the coating film can be antibacterial, anti-fouling and resistant to cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a flow chart of a method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] See attached Figure 1 , attached Figure 1 The present invention is a flow chart of a method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder.

[0033] Embodiment 1

[0034] A formaldehyde-resistant and stain-resistant interior wall full-batch powder, comprising the following components in parts by mass:

[0035] The titanium dioxide is 10 parts, the talc is 74 parts, the calcium carbonate is 90 parts, the organic bentonite is 79 parts, the deionized water is 230 parts, the film-forming aid is 14 parts, the acrylic emulsion is 270 parts and the ethylene glycol solvent is 15 parts.

[0036] Among them, the film-forming aid is OE-300 produced by Guangzhou Hengyu Chemical.

[0037] A method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder comprises the following steps:

[0038] Step S100, grinding 74 parts of talc, 90 parts of calcium carbonate, and 79 parts of organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size;

[0039] Wherein, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and 15 parts of ethylene glycol solvent are distributed according to the mass ratio of talc, calcium carbonate and organic bentonite;

[0040] After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite are stirred respectively and then ground;

[0041] The fineness of the talc powder, calcium carbonate powder and organic bentonite powder is 800 mesh;

[0042] Step S200, blending and grinding 74 parts of talc powder and 10 parts of titanium dioxide, adding 230 parts of deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry;

[0043] The blending and grinding is achieved by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering;

[0044] Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion into talc-titanium dioxide composite particle slurry and stirring well;

[0045] Among them, 90 parts of calcium carbonate powder, 79 parts of organic bentonite powder, 14 parts of film-forming aid and 270 parts of acrylic emulsion were added to the talc-titanium dioxide composite particle slurry in sequence, and the talc-titanium dioxide composite particle slurry was continuously stirred during the addition process. The stirring condition was: 120r / min, and the stirring was continued for 3 minutes after all the addition was completed;

[0046] Step S400, after standing, a talc-titanium dioxide coating is obtained.

[0047] Apply the coating to the surface of the full batch powder main material by spraying or brushing, with a coating thickness of not less than 0.25mm, and then dry naturally. The wall surface obtained by the above method is tested for performance, and the results are shown in Table 1:

[0048] Test items Test Results Washing times >2200 times Antimicrobial Escherichia coli; Legionella; Staphylococcus aureus 99.99% Anti-virus (2h indoor) 99.9％ Low temperature / high temperature stability No deterioration Mildew resistance level Level 0 color White

[0049] The anti-virus test reference standards are ISO27447, ISO18061, and ISO18071.

[0050] Embodiment 2

[0051] A formaldehyde-resistant and stain-resistant interior wall full-batch powder, comprising the following components in parts by mass:

[0052] 10 parts of titanium dioxide, 74 parts of talc, 90 parts of calcium carbonate, 79 parts of organic bentonite, 230 parts of deionized water, 14 parts of film-forming aid, 270 parts of acrylic emulsion, 15 parts of ethylene glycol solvent, and 6 parts of coloring matter;

[0053] The coloring material comprises a combination of the following components:

[0054] Red iron oxide, yellow iron oxide and phthalocyanine blue.

[0055] Red, yellow and cyan are the three primary colors of pigments, so any color of paint can be achieved by mixing red iron oxide, yellow iron oxide and phthalocyanine blue in any proportion.

[0056] A method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder comprises the following steps:

[0057] Step S100, grinding 74 parts of talc, 90 parts of calcium carbonate, and 79 parts of organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size;

[0058] Wherein, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and 15 parts of ethylene glycol solvent are distributed according to the mass ratio of talc, calcium carbonate and organic bentonite;

[0059] After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite are stirred respectively and then ground;

[0060] The fineness of the talc powder, calcium carbonate powder and organic bentonite powder is 800 mesh;

[0061] Step S200, blending and grinding 74 parts of talc powder and 10 parts of titanium dioxide, adding 230 parts of deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry;

[0062] The blending and grinding is achieved by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering;

[0063] Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid, acrylic emulsion and 6 parts of dye to the talc-titanium dioxide composite particle slurry, and stirring well;

[0064] Among them, 90 parts of calcium carbonate powder, 79 parts of organic bentonite powder, 14 parts of film-forming aids, 270 parts of acrylic emulsions and 6 parts of dyes were added to the talc-titanium dioxide composite particle slurry in sequence. The talc-titanium dioxide composite particle slurry was continuously stirred during the adding process. The stirring condition was: 120r / min. After all the addition was completed, stirring was continued for 3 minutes.

[0065] Step S400, after standing, a talc-titanium dioxide coating is obtained.

[0066] Apply the coating to the full batch powder main material surface by spraying or brushing, the coating thickness is not less than 0.25mm, and then dry naturally. The wall surface obtained by the above method is tested for performance, and the results are shown in Table 2:

[0067]

[0068]

[0069] The anti-virus test reference standards are ISO27447, ISO18061, and ISO18071.

[0070] Embodiment 3

[0071] The difference from Example 1 is that the amounts of the components are different, specifically:

[0072] A formaldehyde-resistant and stain-resistant interior wall full-batch powder, comprising the following components in parts by mass:

[0073] The titanium dioxide is 8 parts, the talc is 62 parts, the calcium carbonate is 84 parts, the organic bentonite is 56 parts, the deionized water is 200 parts, the film-forming aid is 12 parts, the acrylic emulsion is 240 parts and the ethylene glycol solvent is 13 parts.

[0074] A method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder comprises the following steps:

[0075] Step S100, grinding 62 parts of talc, 84 parts of calcium carbonate, and 56 parts of organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size;

[0076] Wherein, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and 12 parts of ethylene glycol solvent are distributed according to the mass ratio of talc, calcium carbonate and organic bentonite;

[0077] After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite are stirred respectively and then ground;

[0078] The fineness of the talc powder, calcium carbonate powder and organic bentonite powder is 1000 mesh;

[0079] Step S200, blending and grinding 62 parts of talc powder and 8 parts of titanium dioxide, adding 200 parts of deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry;

[0080] The blending and grinding is achieved by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering;

[0081] Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion into talc-titanium dioxide composite particle slurry and stirring well;

[0082] Among them, 84 parts of calcium carbonate powder, 56 parts of organic bentonite powder, 12 parts of film-forming aid and 240 parts of acrylic emulsion were added to the talc-titanium dioxide composite particle slurry in sequence, and the talc-titanium dioxide composite particle slurry was continuously stirred during the addition process. The stirring condition was: 120r / min, and the stirring was continued for 3 minutes after all the additions were completed;

[0083] Step S400, after standing, a talc-titanium dioxide coating is obtained.

[0084] Apply the coating to the surface of the full batch powder main material by spraying or brushing, with a coating thickness of not less than 0.25mm, and then dry naturally. The wall surface obtained by the above method is tested for performance, and the results are shown in Table 3:

[0085] Test items Test Results Washing times >2200 times Antimicrobial Escherichia coli; Legionella; Staphylococcus aureus 99.99% Anti-virus (2h indoor) 99.9％ Low temperature / high temperature stability No deterioration Mildew resistance level Level 0 color White

[0086] The anti-virus test reference standards are ISO27447, ISO18061, and ISO18071.

[0087] Embodiment 4

[0088] A formaldehyde-resistant and stain-resistant interior wall full-batch powder, comprising the following components in parts by mass:

[0089] The titanium dioxide is 12 parts, the talc is 86 parts, the calcium carbonate is 96 parts, the organic bentonite is 82 parts, the deionized water is 260 parts, the film-forming aid is 16 parts, the acrylic emulsion is 300 parts and the ethylene glycol solvent is 17 parts.

[0090] A method for preparing formaldehyde-resistant and stain-resistant interior wall full-batch powder comprises the following steps:

[0091] Step S100, grinding 86 parts of talc, 96 parts of calcium carbonate, and 82 parts of organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size;

[0092] Wherein, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and 17 parts of ethylene glycol solvent are distributed according to the mass ratio of talc, calcium carbonate and organic bentonite;

[0093] After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite are stirred respectively and then ground;

[0094] The fineness of the talc powder, calcium carbonate powder and organic bentonite powder is 1000 mesh;

[0095] Step S200, blending and grinding 86 parts of talc powder and 12 parts of titanium dioxide, adding 260 parts of deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry;

[0096] The blending and grinding is achieved by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering;

[0097] Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion into talc-titanium dioxide composite particle slurry and stirring well;

[0098] Among them, 96 parts of calcium carbonate, 82 parts of organic bentonite, 16 parts of film-forming aids and 300 parts of acrylic emulsion were added to the talc-titanium dioxide composite particle slurry in sequence, and the talc-titanium dioxide composite particle slurry was continuously stirred during the addition process. The stirring condition was: 120r / min, and the stirring was continued for 3 minutes after all the additions were completed;

[0099] Step S400, after standing, a talc-titanium dioxide coating is obtained.

[0100] Apply the coating to the full batch powder main material surface by spraying or brushing, the coating thickness is not less than 0.25mm, and then dry naturally. The wall surface obtained by the above method is tested for performance, and the results are shown in Table 4:

[0101] Test items Test Results Washing times >2200 times Antimicrobial Escherichia coli; Legionella; Staphylococcus aureus 99.99% Anti-virus (2h indoor) 99.9％ Low temperature / high temperature stability No deterioration Mildew resistance level Level 0 color White

[0102] The anti-virus test reference standards are ISO27447, ISO18061, and ISO18071.

[0103] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A formaldehyde-resistant and stain-resistant interior wall full-batch powder, characterized in that: The composition comprises the following components in parts by weight: The titanium dioxide is 8-12 parts, the talc is 62-86 parts, the calcium carbonate is 84-96 parts, the organic bentonite is 56-82 parts, the deionized water is 200-260 parts, the film-forming aid is 12-16 parts, the acrylic emulsion is 240-300 parts and the ethylene glycol solvent is 13-17 parts.

2. The formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 1, characterized in that: The following components are also included: The coloring matter is 5-8 parts; The coloring material comprises any combination of the following components: Red iron oxide, yellow iron oxide and phthalocyanine blue.

3. The formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 1, characterized in that: The composition comprises the following components in parts by weight: The titanium dioxide is 8 parts, the talc is 62 parts, the calcium carbonate is 84 parts, the organic bentonite is 56 parts, the deionized water is 200 parts, the film-forming aid is 12 parts, the acrylic emulsion is 240 parts and the ethylene glycol solvent is 13 parts.

4. The formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 1, characterized in that: The composition comprises the following components in parts by weight: The titanium dioxide is 10 parts, the talc is 74 parts, the calcium carbonate is 90 parts, the organic bentonite is 79 parts, the deionized water is 230 parts, the film-forming aid is 14 parts, the acrylic emulsion is 270 parts and the ethylene glycol solvent is 15 parts.

5. The formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 1, characterized in that: The composition comprises the following components in parts by weight: The titanium dioxide is 12 parts, the talc is 86 parts, the calcium carbonate is 96 parts, the organic bentonite is 82 parts, the deionized water is 260 parts, the film-forming aid is 16 parts, the acrylic emulsion is 300 parts and the ethylene glycol solvent is 17 parts.

6. A method for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder, used for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claims 1-5, characterized in that: The following steps are involved: Step S100, grinding talc, calcium carbonate, and organic bentonite in sequence to obtain talc powder, calcium carbonate powder, and organic bentonite powder of optimal particle size; Step S200, blending and grinding the talc powder and titanium dioxide, adding deionized water during the blending and grinding process, and then obtaining a talc-titanium dioxide composite particle slurry; Step S300, adding calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion into talc-titanium dioxide composite particle slurry and stirring well; Step S400, after standing, a talc-titanium dioxide coating is obtained.

7. The method for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 6, characterized in that: In step S100, ethylene glycol solvent is added when talc, calcium carbonate and organic bentonite are ground, and the ethylene glycol solvent is distributed according to the mass ratio of talc, calcium carbonate and organic bentonite; After adding the ethylene glycol solvent, the talc, calcium carbonate and organic bentonite were stirred respectively and then ground.

8. The method for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 6, characterized in that: In step S100, the fineness of the talc powder, calcium carbonate powder and organic bentonite powder is not less than 800 mesh.

9. The method for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 6, characterized in that: In step S200, the blending and grinding is performed by a ball mill, and after sufficient grinding, the talc-titanium dioxide composite particle slurry is obtained by filtering.

10. The method for preparing a formaldehyde-resistant and stain-resistant interior wall full-batch powder according to claim 6, characterized in that: In step 300, the calcium carbonate powder, organic bentonite powder, film-forming aid and acrylic emulsion are sequentially added to the talc-titanium dioxide composite particle slurry, and the talc-titanium dioxide composite particle slurry is continuously stirred during the adding process, and the stirring condition is: 120r / min, and the stirring is continued for 3min after all the addition is completed; Wherein, the coloring material is selectively added in this step.

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