CN114106597A - Water-based inorganic antistatic A1-grade flame-retardant coating and preparation method thereof - Google Patents
Water-based inorganic antistatic A1-grade flame-retardant coating and preparation method thereof Download PDFInfo
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- CN114106597A CN114106597A CN202111388546.5A CN202111388546A CN114106597A CN 114106597 A CN114106597 A CN 114106597A CN 202111388546 A CN202111388546 A CN 202111388546A CN 114106597 A CN114106597 A CN 114106597A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000003063 flame retardant Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000000843 powder Substances 0.000 claims abstract description 32
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 30
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000010445 mica Substances 0.000 claims abstract description 29
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 29
- 239000010456 wollastonite Substances 0.000 claims abstract description 27
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 27
- 239000004113 Sepiolite Substances 0.000 claims abstract description 26
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 26
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 26
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 22
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 14
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 14
- 239000003755 preservative agent Substances 0.000 claims abstract description 14
- 239000000080 wetting agent Substances 0.000 claims abstract description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 13
- 230000002335 preservative effect Effects 0.000 claims abstract description 13
- 239000013530 defoamer Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 27
- 239000002518 antifoaming agent Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 12
- 239000003973 paint Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000005034 decoration Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a water-based inorganic antistatic A1-grade flame retardant coating and a preparation method thereof, wherein the coating is prepared from the following components in parts by mass: 5.85-18.05 parts of water, 0.4-0.7 part of hydroxyethyl cellulose, 0.4-0.7 part of water-based dispersant, 0.2-0.6 part of water-based wetting agent, 0.05-0.15 part of water-based defoamer, 5-15 parts of conductive titanium dioxide, 2-10 parts of rutile titanium dioxide, 5-8 parts of mica powder, 5-15 parts of sepiolite, 5-15 parts of wollastonite, 2-5 parts of heavy calcium carbonate, 35-50 parts of modified silica sol and 0.1-0.2 part of aldehyde-free preservative. The water-based inorganic antistatic A1-grade flame-retardant coating disclosed by the invention can realize A1-grade fire prevention, and has a good antistatic effect, a super covering and decorating effect, washing resistance and storage stability.
Description
Technical Field
The invention relates to a water-based inorganic antistatic A1-grade flame-retardant coating and a preparation method thereof.
Background
In view of safety, the interior walls of some chemical and pharmaceutical factories often require coatings with antistatic and flame retardant functions, and in addition, for the sake of decoration and simplicity of factories, the color of the wall often requires white, so that the coatings on the market at present cannot meet the requirements of decoration and functionality at the same time. The inorganic coating adopts silica sol or potassium silicate to replace organic polymer as a film forming substance, which can play a role in flame retardance, but if part of organic emulsion is mixed in the film forming substance, the highest fire-proof grade can reach A2 grade fire-proof, organic matters in the coating can be carbonized at high temperature to generate a certain amount of toxic gas and smoke, and the safety of the coating has a space for further improving. However, while the mere use of inorganic silicates as film-forming materials can render coatings flame retardant to a1 grade, the wash resistance and storage stability of the coatings present significant challenges.
Disclosure of Invention
The invention provides a water-based inorganic antistatic A1-grade flame retardant coating and a preparation method thereof, and the water-based inorganic antistatic A1-grade flame retardant coating can realize A1-grade fire prevention, and has good antistatic effect, super covering and decorating effect, washing resistance and storage stability.
The invention is realized by the following technical scheme:
the water-based inorganic antistatic A1-grade flame-retardant coating is prepared from the following components in parts by mass: 5.85-18.05 parts of water, 0.4-0.7 part of hydroxyethyl cellulose, 0.4-0.7 part of water-based dispersant, 0.2-0.6 part of water-based wetting agent, 0.05-0.15 part of water-based defoamer, 5-15 parts of conductive titanium dioxide, 2-10 parts of rutile titanium dioxide, 5-8 parts of mica powder, 5-15 parts of sepiolite, 5-15 parts of wollastonite, 2-5 parts of heavy calcium carbonate, 35-50 parts of modified silica sol and 0.1-0.2 part of aldehyde-free preservative.
Further, the mica powder is 800-2000 mesh mica powder.
Further, the sepiolite is 800-2000 mesh sepiolite.
Further, the wollastonite is 800-2000 mesh wollastonite.
Further, the heavy calcium carbonate is 800-2000 mesh heavy calcium carbonate.
Further, the rutile titanium dioxide is conventional rutile titanium dioxide for coatings.
Furthermore, tap water is adopted as the water.
The water-based inorganic antistatic A1-grade flame-retardant coating uses organically modified silica sol as a film-forming substance, and conductive titanium dioxide as a conductive substance and a pigment.
A preparation method of a water-based inorganic antistatic A1-grade flame retardant coating comprises the following steps:
sequentially adding water, hydroxyethyl cellulose, a water-based dispersing agent, a water-based wetting agent and a water-based defoaming agent at the rotating speed of 300-600rpm, and stirring for 1-2 minutes;
then adding part of silica sol, stirring for 2-5min until uniform and transparent;
then adding conductive titanium dioxide, rutile titanium dioxide, sepiolite, mica powder and wollastonite powder, increasing the rotating speed to 1300-1600rpm, and dispersing for 15-20 min;
and finally, regulating the rotating speed to 800rpm, adding the residual modified silica sol and the aldehyde-free preservative, and continuously stirring for 5-10min to obtain the modified silica sol.
Through a large number of experiments, the washing resistance and the storage stability of the pure inorganic coating are solved, conductive titanium dioxide is added into the pure inorganic coating to achieve good covering and antistatic properties, and the decoration and the functionality are integrated into a whole.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses modified silica sol as a film forming material and conductive titanium dioxide as a conductive material and a pigment to prepare the functional paint with flame retardance, fire resistance and white high covering. The conductive titanium dioxide is used as the pigment to solve the problem that the conductive paint on the market has color. Pure inorganic substances are used as film forming substances, so that the prepared coating has the highest A1 level resistance function, the risk that toxic smoke is released by a wall coating when a fire disaster happens is solved, and the escape possibility of people in the fire disaster is increased.
2. The mica powder, the sepiolite and the wollastonite are matched, and the reasonable proportion of the mica powder, the sepiolite and the wollastonite is adjusted, so that the prepared coating can be stably stored for a long time, and the scrubbing resistance can meet the requirement of high-grade products of interior wall coatings.
3. The prepared antistatic coating adopts conductive titanium dioxide as a conductive material and a pigment, and is matched with common titanium dioxide, so that the preparation of the white antistatic coating can be realized, and the antistatic requirement and the decorative requirement of chemical plants, pharmaceutical factories and military factories can be met simultaneously.
Detailed Description
The invention is further illustrated by the following specific examples.
Detailed description of the preferred embodiment
The water-based inorganic antistatic A1-grade flame-retardant coating is prepared from the following components in parts by mass: 5.85-18.05 parts of water, 0.4-0.7 part of hydroxyethyl cellulose, 0.4-0.7 part of water-based dispersant, 0.2-0.6 part of water-based wetting agent, 0.05-0.15 part of water-based defoamer, 5-15 parts of conductive titanium dioxide, 2-10 parts of rutile titanium dioxide, 5-8 parts of mica powder, 5-15 parts of sepiolite, 5-15 parts of wollastonite, 2-5 parts of heavy calcium carbonate, 35-50 parts of modified silica sol and 0.1-0.2 part of aldehyde-free preservative.
The mica powder is 800-2000-mesh mica powder;
the sepiolite is 800-2000 mesh sepiolite.
The wollastonite is 800-mesh wollastonite and 2000-mesh wollastonite.
The heavy calcium carbonate is 800-2000 mesh heavy calcium carbonate.
The rutile titanium dioxide is conventional rutile titanium dioxide for paint. .
The water is tap water.
A preparation method of a water-based inorganic antistatic A1-grade flame retardant coating comprises the following steps:
sequentially adding water, hydroxyethyl cellulose, a water-based dispersing agent, a water-based wetting agent and a water-based defoaming agent at the rotating speed of 300-600rpm, and stirring for 1-2 minutes;
then adding part of silica sol, stirring for 2-5min until uniform and transparent;
then adding conductive titanium dioxide, sepiolite, mica powder and wollastonite powder, increasing the rotating speed to 1300 plus 1600rpm, and dispersing for 15-20 min;
and finally, regulating the rotating speed to 800rpm, adding the residual modified silica sol and the aldehyde-free preservative, and continuously stirring for 5-10min to obtain the modified silica sol.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
Adjusting the rotating speed to 300rpm, adding 14.35 parts of water, 0.7 part of hydroxyethyl cellulose, 0.4 part of water-based dispersant, 0.4 part of water-based wetting agent and 0.05 part of water-based defoaming agent, and stirring for 1 min;
adding 20 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 10 parts of conductive titanium dioxide, 5 parts of rutile titanium dioxide, 10 parts of sepiolite, 4 parts of mica powder, 10 parts of wollastonite and 5 parts of ground limestone, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 20 parts of silica sol and 0.1 part of preservative, and continuously stirring for 10min to obtain a finished product.
Example 2
Adjusting the rotating speed to 300rpm, adding 5.85 parts of water, 0.4 part of hydroxyethyl cellulose, 0.7 part of water-based dispersing agent, 0.6 part of water-based wetting agent and 0.15 part of water-based defoaming agent, and stirring for 1 min;
adding 25 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 15 parts of conductive titanium dioxide, 2 parts of rutile titanium dioxide, 15 parts of sepiolite, 8 parts of mica powder, 5 parts of wollastonite and 2 parts of ground limestone, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 25 parts of silica sol and 0.2 part of preservative, and continuously stirring for 5min to obtain a finished product.
Example 3
Adjusting the rotating speed to 300rpm, adding 18.05 parts of water, 0.6 part of hydroxyethyl cellulose, 0.5 part of water-based dispersing agent, 0.2 part of water-based wetting agent and 0.15 part of water-based defoaming agent, and stirring for 1 min;
adding 20 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 5 parts of conductive titanium dioxide, 10 parts of rutile titanium dioxide, 5 parts of sepiolite, 8 parts of mica powder, 15 parts of wollastonite and 2 parts of ground limestone, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 15 parts of silica sol and 0.2 part of preservative, and continuously stirring for 6min to obtain a finished product.
Comparative example 1
Adjusting the rotating speed to 300rpm, adding 14.35 parts of water, 0.7 part of hydroxyethyl cellulose, 0.4 part of water-based dispersant, 0.4 part of water-based wetting agent and 0.05 part of water-based defoaming agent, and stirring for 1 min;
adding 20 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 15 parts of rutile titanium dioxide, 10 parts of sepiolite, 4 parts of mica powder, 10 parts of wollastonite and 5 parts of ground limestone, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 20 parts of silica sol and 0.1 part of preservative, and continuously stirring for 5-10min to obtain a finished product.
Comparative example 2
Adjusting the rotating speed to 300rpm, adding 5.85 parts of water, 0.4 part of hydroxyethyl cellulose, 0.7 part of water-based dispersant, 0.7 part of water-based wetting agent and 0.15 part of water-based defoaming agent, and stirring for 1 min;
adding 25 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 15 parts of conductive titanium dioxide, 5 parts of sepiolite, 4 parts of mica powder, 5 parts of wollastonite, 8 parts of heavy calcium carbonate and 10 parts of calcined kaolin, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 25 parts of silica sol and 0.2 part of preservative, and continuously stirring for 5-10min to obtain a finished product.
Comparative example 3
Adjusting the rotating speed to 300rpm, adding 5.75 parts of water, 0.5 part of hydroxyethyl cellulose, 0.7 part of water-based dispersant, 0.7 part of water-based wetting agent and 0.15 part of water-based defoaming agent, and stirring for 1 min;
adding 25 parts of modified silica sol, and stirring for 5min until the mixture is uniform and transparent;
then adding 10 parts of conductive titanium dioxide, 15 parts of sepiolite, 10 parts of mica powder and 12 parts of wollastonite, increasing the rotating speed to 1500rpm, and dispersing for 15 min;
regulating the rotating speed to 500rpm, sequentially adding 25 parts of silica sol and 0.2 part of preservative, and continuously stirring for 5-10min to obtain a finished product.
The examples and comparative examples of the invention were compared in terms of performance, wherein the hiding power and scrub resistance tests were carried out in accordance with the national standard GB/T9756 and 2018 synthetic resin emulsion interior wall coating; the detection of the total amount (mg/kg) of volatile organic compounds (VOC (g/L)), free formaldehyde (mg/kg), benzene, toluene, xylene and ethylbenzene refers to GB/T18582-; the fire-proof grade test refers to national standard GB/T5464-. The experimental result shows that the addition of the conductive titanium dioxide can increase the covering power of the paint, meet the decorative requirement of white application scenes and improve the conductivity of the paint. Comparative example 2 shows that the scrub resistance will not meet the requirements of superior products when the proportions of sepiolite and wollastonite are low, because both have rod-like structures, which can increase the toughness of the paint film. Comparative example 3 shows that too high a proportion of mica powder results in a severe decrease in scrub resistance because mica powder has a large lamellar structure and is easily rubbed out, but the proportion of mica powder is preferably 5 to 8 parts in consideration that the presence of mica powder can increase the storage stability of the paint.
TABLE 1 comparison of the Properties of the aqueous inorganic antistatic class A1 flame retardant coating of the invention with that of the comparative example
The prepared water-based inorganic antistatic A1-grade flame-retardant coating meets the national standard of interior wall coatings GBT 9756-. The surface resistance value and the volume resistance value of a wall surface coated with the prepared water-based inorganic antistatic A1-grade flame-retardant coating are 1 multiplied by 105-1 multiplied by 109 omega, and the coating completely meets the national military standard GJB3007A-2009 technical requirements for antistatic working areas and the national electronic industry standard SJ/T10694-2006 general specification for antistatic detection, and is widely applied to decoration of building wall surfaces with the requirement for antistatic. The comparative experiment shows that the paint without adding the conductive titanium dioxide or reasonably matching the mica powder, the sepiolite and the wollastonite is not added or slightly added, so that the surface resistance value of the paint is larger and does not meet the requirements of national military standard; if the mica powder, the sepiolite and the wollastonite are not reasonably matched, the prepared coating has no excellent scrubbing resistance and storage stability and cannot meet the requirement of superior products in the national standard of interior wall coatings.
The components of the above examples are preferably the raw materials of the following manufacturers:
hydroxyethyl cellulose was purchased from span;
aqueous dispersants, aqueous wetting agents, aqueous defoamers, and aldehyde-free preservatives are purchased from dow chemistry;
calcined kaolin was purchased from Guangfu chemical;
the rutile titanium dioxide is from the python herboria;
the conductive titanium dioxide is purchased from Hangzhou and allied chemical companies;
sepiolite was purchased from sepiolite wool, inc;
mica powder, heavy calcium carbonate and wollastonite are purchased from the Guangxi extensive chemical industry;
the modified silica sol is organic modified silica sol purchased from Orimun chemical industry.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A water-based inorganic antistatic A1-grade flame retardant coating is characterized in that: the adhesive is prepared from the following components in parts by mass: 5.85-18.05 parts of water, 0.4-0.7 part of hydroxyethyl cellulose, 0.4-0.7 part of water-based dispersant, 0.2-0.6 part of water-based wetting agent, 0.05-0.15 part of water-based defoamer, 5-15 parts of conductive titanium dioxide, 2-10 parts of rutile titanium dioxide, 4-8 parts of mica powder, 5-15 parts of sepiolite, 5-15 parts of wollastonite, 2-5 parts of heavy calcium carbonate, 35-50 parts of modified silica sol and 0.1-0.2 part of aldehyde-free preservative.
2. The water-based inorganic antistatic A1 grade flame retardant coating according to claim 1, characterized in that: the mica powder is 800-2000 meshes of mica powder.
3. The water-based inorganic antistatic A1 grade flame retardant coating according to claim 1, characterized in that: the sepiolite is 800-2000 meshes.
4. The water-based inorganic antistatic A1 grade flame retardant coating according to claim 1, characterized in that: the wollastonite is 800-mesh wollastonite and 2000-mesh wollastonite.
5. The water-based inorganic antistatic A1 grade flame retardant coating according to claim 1, characterized in that: the heavy calcium carbonate is 800-2000 mesh heavy calcium carbonate.
6. The water-based inorganic antistatic A1 grade flame retardant coating according to claim 1, characterized in that: the water is tap water.
7. The preparation method of the water-based inorganic antistatic A1 grade flame retardant coating according to any one of claims 1-6, characterized in that: the method comprises the following steps:
sequentially adding water, hydroxyethyl cellulose, a water-based dispersing agent, a water-based wetting agent and a water-based defoaming agent at the rotating speed of 300-600rpm, and stirring for 1-2 minutes;
then adding part of silica sol, stirring for 2-5min until uniform and transparent;
then adding conductive titanium dioxide, rutile titanium dioxide, sepiolite, mica powder and wollastonite powder, increasing the rotating speed to 1300-1600rpm, and dispersing for 15-20 min;
and finally, regulating the rotating speed to 800rpm, adding the residual modified silica sol and the aldehyde-free preservative, and continuously stirring for 5-10min to obtain the modified silica sol.
8. The preparation method of the water-based inorganic antistatic A1 grade flame retardant coating according to claim 7, wherein the preparation method comprises the following steps: the heavy calcium carbonate and rutile titanium dioxide are added together with the conductive titanium dioxide, mica powder and sepiolite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111388546.5A CN114106597A (en) | 2021-11-22 | 2021-11-22 | Water-based inorganic antistatic A1-grade flame-retardant coating and preparation method thereof |
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| CN202111388546.5A CN114106597A (en) | 2021-11-22 | 2021-11-22 | Water-based inorganic antistatic A1-grade flame-retardant coating and preparation method thereof |
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| CN116102911A (en) * | 2023-02-21 | 2023-05-12 | 三棵树涂料股份有限公司 | Exterior wall inorganic real stone paint with A-level fireproof function and preparation method thereof |
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