CN106467690B - The application of talcum powder and titanium white compound powder on coating - Google Patents
The application of talcum powder and titanium white compound powder on coating Download PDFInfo
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- CN106467690B CN106467690B CN201610684808.5A CN201610684808A CN106467690B CN 106467690 B CN106467690 B CN 106467690B CN 201610684808 A CN201610684808 A CN 201610684808A CN 106467690 B CN106467690 B CN 106467690B
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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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
- C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09D123/0853—Vinylacetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention relates to the application of talcum powder and titanium white compound powder on coating, the median D of the talcum powder in the composition50≤ 8 μm, the median D of titanium dioxide50≤ 5 μm, the absolute value of the median difference between talcum powder and titanium dioxide is not more than 5 μm；The absolute value of the bulk density difference of titanium dioxide and talcum powder is not more than 0.15g/cm3；Talcum powder and the absolute value of titanium dioxide oil absorption difference are more than 6g/100g, are less than 12g/100g；The size distribution of the composition is（The granularity of mass accumulation ＜ 80%）/（The granularity of mass accumulation ＜ 20%）≤10.The present invention provides a kind of talcum powder and titanium white compound powder applied on coating, and the composition dispersion performance in coating is good, improves the application performance of final coating, enhances the glossiness and mechanical performance of film.
Description
Technical field
The invention belongs to the application of talcum powder and titanium white compound powder on coating.
Background technology
Coating is widely applied product in a kind of daily life, has and is uniformly attached to baseplate material surface and is formed viscous
It is attached securely, there is some strength, continuous solid film, different construction technologies can be used coated in object surface, it is not only right
The surface of baseplate material is protected, while also can carry out landscaping treatment to baseplate material.
In recent years, with the raising of living standards of the people and the development of society, the demand that consumer decorates coating
Higher and higher, the requirement to coating indices is also higher and higher, this just promotes coating material production quotient each from raw material, production technology etc.
From the aspect of, to promote the performance of coating.
104312225 B of patent of invention CN disclose a kind of high-flexibility, high gloss inorganic coating and preparation method,
The inorganic coating is made of priming paint and finishing coat.Priming paint is grouped as by two kinds of groups, and primer composition A is grouped by the group of following mass fraction
At：42-45 parts of Ludox, 19-22 parts of titanium dioxide, 5.3-6.3 parts of kaolin, 4.4-4.6 parts of mica powder, talcum powder 2.2-2.3
Part, 20-23 parts of deionized water, 1.9-2.1 parts of auxiliary agent；Primer composition B is grouped as by the group of following mass fraction：Acetic anhydride 1.0-
1.1 parts, 81.3-84.1 parts of methyltrimethoxysilane, 14.9-17.6 parts of dimethoxy dimethoxysilane.In the invention,
Coating obtained has excellent glossiness, but is not defined to the color stuffings index such as titanium dioxide and talcum powder wherein, makes painting
The mechanical performance of film is general.
Invention content
Being applied to the talcum powder on coating and titanium white compound powder technical problem to be solved by the invention is to provide a kind of,
On the basis of the production Technology of existing coating, talcum powder and titanium white compound powder are applied in coating, there is coating production
The characteristics of product function admirable.
In order to achieve the object of the present invention, technical scheme is as follows：
A kind of talcum powder and titanium white compound powder applied on coating, wherein the median D of talcum powder50≤ 8 μm, titanium
The median D of white powder50≤ 5 μm, the absolute value of the median difference between talcum powder and titanium dioxide is not more than 5 μm.
Further, the median of talcum powder is between 1.0~1.2 μm, and the median of titanium dioxide is 0.15~0.3
Between μm, the difference of the median between talcum powder and titanium dioxide is not less than 1 μm.
The size distribution of above-mentioned composition be (granularity of mass accumulation ＜ 80%)/(granularity of mass accumulation ＜ 20%)≤
10。
The absolute value of the bulk density difference of titanium dioxide and talcum powder is not more than 0.15g/cm3。
Talcum powder and the absolute value of titanium dioxide oil absorption difference are more than 6g/100g, are less than 12g/100g.
In above-mentioned composition, the mass ratio between talcum powder and titanium dioxide is 1:1-1:9.
Preferably, the mass ratio between talcum powder and titanium dioxide is 12:53.
Further, whiteness >=93% of talcum powder, whiteness >=95% of titanium dioxide.
The particle appearance of above-mentioned talcum powder is laminated structure.
Above-mentioned titanium dioxide can be rutile type titanium white, anatase thpe white powder, rutile type titanium white and anatase titanium dioxide
One kind in the mixing titanium dioxide of powder.
Preferably, titanium dioxide is the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile
The mass ratio of type titanium dioxide and anatase thpe white powder is 1:2.5~4.5.
Further, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential >=90%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating, by titanium dioxide, talcum powder raw material
Air-flow crushing is carried out respectively；Acid solution is added in talcum powder, and stirs evenly slurrying at a constant temperature, the talcum powder after pickling through washing,
Filtering, moves in the ball grinder for having been loaded with titanium dioxide and a small amount of surfactant, ball-milling medium is added, and wet-milling is aged, filtering,
It is dry, to obtain talcum powder and titanium white compound powder finished product.
Preferably, surfactant is nonylphenol polyoxyethylene ether, one kind in fatty alcohol polyoxyethylene ether.
A kind of coating, consisting of, talcum powder and titanium white compound powder as described above, nitrocotton, EVA resin, MP45
Resin, CPP resins, toluene, propyl alcohol, butanone, ethyl ester, paraffin.
Further, each component is calculated as with parts by weight in the coating, 195 parts of talcum powder and titanium white compound powder, nitrification
5 parts of cotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone, ethyl ester
10 parts, 2 parts of paraffin.
Beneficial effects of the present invention are to provide a kind of talcum powder and titanium white compound powder applied on coating, the combination
Object dispersion performance in coating is good, improves the application performance of final coating, enhances the glossiness and mechanical performance of film.
Specific implementation mode
The present invention provides a kind of talcum powder and titanium white compound powder applied on coating, and the key technical indexes is such as
Under：
A kind of talcum powder and titanium white compound powder applied on coating, wherein the median D of talcum powder50≤ 8 μm, titanium
The median D of white powder50≤ 5 μm, the absolute value of the median difference between talcum powder and titanium dioxide is not more than 5 μm.
Further, the median of talcum powder is between 1.0~1.2 μm, and the median of titanium dioxide is 0.15~0.3
Between μm, the difference of the median between talcum powder and titanium dioxide is not less than 1 μm.
The size distribution of above-mentioned composition be (granularity of mass accumulation ＜ 80%)/(granularity of mass accumulation ＜ 20%)≤
10。
The absolute value of the bulk density difference of titanium dioxide and talcum powder is not more than 0.15g/cm3。
Talcum powder and the absolute value of titanium dioxide oil absorption difference are more than 6g/100g, are less than 12g/100g.
In above-mentioned composition, the mass ratio between talcum powder and titanium dioxide is 1:1-1:9.
Preferably, the mass ratio between talcum powder and titanium dioxide is 12:53.
Further, whiteness >=93% of talcum powder, whiteness >=95% of titanium dioxide.
The particle appearance of above-mentioned talcum powder is laminated structure.
Above-mentioned titanium dioxide can be rutile type titanium white, anatase thpe white powder, rutile type titanium white and anatase titanium dioxide
One kind in the mixing titanium dioxide of powder.
Preferably, titanium dioxide is the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile
The mass ratio of type titanium dioxide and anatase thpe white powder is 1:2.5~4.5.
Further, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential >=90%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating, it is characterised in that：By titanium dioxide,
Talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and stirs evenly slurrying at a constant temperature, the talcum after pickling
Powder is moved to through washing, filtering in the ball grinder for having been loaded with titanium dioxide and a small amount of surfactant, and ball-milling medium, and wet-milling is added
Ageing is filtered, dry, to obtain talcum powder and titanium white compound powder finished product.
Preferably, surfactant is nonylphenol polyoxyethylene ether, one kind in fatty alcohol polyoxyethylene ether.
A kind of coating, consisting of, talcum powder and titanium white compound powder as described above, nitrocotton, EVA resin, MP45
Resin, CPP resins, toluene, propyl alcohol, butanone, ethyl ester, paraffin.
Further, each component is calculated as with parts by weight in the coating, 195 parts of talcum powder and titanium white compound powder, nitrification
5 parts of cotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone, ethyl ester
10 parts, 2 parts of paraffin.
It below will the present invention will be described in detail by experimental example：
First it should be noted that the data in following experimental examples are obtained by inventor by many experiments, as space is limited,
A part therein is only shown in specification, and those of ordinary skill in the art can understand under this data and implement this hair
Bright, remainder data all has trend identical with following experiment conclusions and can obtain identical conclusion, repeats no more hereinafter.
Experimental example 1
It takes the industrial titanium dioxide that different-grain diameter is distributed to prepare finished product coating, and detects coating index of correlation, its in technique
He takes median at parameter.
As shown in Table 1, when titanium dioxide median is more than 5 μm, the covering power of coating finished product, whiteness, stably dispersing
Property be remarkably decreased, can not be applied to production and living in.Therefore, the present invention selects titanium dioxide of the median no more than 5 μm to make
For experimental raw.
Influence of the titanium dioxide of 1 different-grain diameter of table to coating property
Note：According to GB/T 1726-1979 standard detection coating covering powers；It is applied according to GB/T 5950-2008 standard detections
The whiteness of material；The dispersion stabilization of coating measures, and is to take 50ml coating to pour into tool plug scale test tube to stand, and is read after 48h
The bigger dispersion stabilization for indicating coating of volume V, the then dispersion stabilization of coating=(50-V)/50 of layer clear liquid, wherein numerical value
Better.
Experimental example 2
The industrial talcum powder for taking different-grain diameter to be distributed, while other parameters take median in technique, prepare coating and go forward side by side
Row coherent detection.
As shown in Table 2, when talcum powder median is more than 8 μm, the dispersion situation in coating is poor, and it disperses
It is unstable, therefore the present invention selects talcum powder of the median no more than 8 μm as experimental raw.
Influence of the talcum powder of 2 different-grain diameter of table to coating property
Note：The dispersion stabilization of coating measures, and is to take 50ml coating to pour into tool plug scale test tube to stand, is read after 48h
The bigger stably dispersing for indicating coating of the volume V of supernatant liquor, the then dispersion stabilization of coating=(50-V)/50, wherein numerical value
Property is better.
Experimental example 3
It takes industrial titanium dioxide of the median no more than 5 μm, median to be not more than 8 μm of industrial talcum powder, leads to
Cross to different quality than talcum powder and titanium dioxide mixing, obtain the composition of different numbers, coating is made and detect its key
Index, other parameters take median in technique.
As shown in table 3, when the mass ratio of talcum powder and titanium dioxide is less than 1:When 9, although whiteness is high, its covering power and resistance to
Performance is scrubbed to decline obviously；Meanwhile in the mass ratio of talcum powder and titanium dioxide being more than 1:When 1, the whiteness of coating can drastically decline.
Therefore in the present invention, the mass ratio of the talcum powder and titanium dioxide that select is 1:1-1:9.
3 different quality of table than talcum powder and influence of the titanium dioxide to coating property
Note：According to the covering power of GB/T 1726-1979 standard detection coating；GB/T 5950-2008 standard detection coating
Whiteness.
Experimental example 4
In order to avoid the particle size distribution because of talcum powder and titanium white compound powder is wide, and make the production of different batches coating
The situation that the performance difference of product is excessive occurs, it is necessary to limit the particle size distribution of talcum powder and titanium white compound powder
It is fixed, it is defined in the present invention with 80/20 relative granularity ratio, i.e. (granularity of mass accumulation ＜ 80%)/(mass accumulation ＜
20% granularity).
Take the industrial titanium dioxide of variety classes, talcum powder, by different-grain diameter distribution, different quality than raw material mixing,
The composition for obtaining different numbers is made coating and detects its key index, and other parameters take median in technique.
As shown in Table 4, when talcum powder and titanium white compound powder (granularity of mass accumulation ＜ 80%)/(mass accumulation ＜
20% granularity)≤10 when, the whiteness of coating, covering power will be better than the product not being defined to this index, or limit
Certainty ratio exceeds the product of this range.
Influence of the composition to coating property under the distribution of 4 different grain size of table
Note：According to the whiteness of GB/T 5950-2008 standard detection coating；It is applied according to GB/T 1726-1979 standard detections
The covering power of material.
Experimental example 5
Usually during the use of coating, if the dispersion of each component is in order in coating, the screening of coating can be improved
The application performances such as Gai Li, appearance of film, while the paint film uniformly continuous brushed, can be improved the corresponding mechanical property of paint film.Institute
With for talcum powder and titanium white compound powder on coating in application, needing to consider between talcum powder and titanium dioxide first
Relationship Between Size, to ensure that coating obtained is with good performance.
The industrial titanium dioxide of variety classes, talcum powder, the mixing by different quality than raw material are taken, while limiting talcum powder
The difference of median between titanium dioxide, obtains the composition of different numbers, and coating is made and detects its key index, technique
Middle other parameters take median.
As shown in table 5, when the absolute value of median difference between talcum powder and titanium dioxide be more than 5 μm when, whiteness and
Covering power is decreased obviously.Therefore in the present invention, absolute value≤5 μm of median difference between talcum powder and titanium dioxide.
5 talcum powder D of table50With titanium dioxide D50Influence of the difference to coating property
Note：According to the whiteness of GB/T 5950-2008 standard detection coating；It is applied according to GB/T 1726-1979 standard detections
The covering power of material.
Experimental example 6
Usually in the case of certain usage amount, the bulk density of powder used is smaller in coating, the volume of powder used
Bigger, gap of the powder in accumulation is more, while applying in coating, and the painting membrane porosity formed after solvent volatilization is bigger,
Increase scattering effect of the light on film so that film covering power enhances.
But when the bulk density of powder is too small, stacking volume is excessive, so that in coating application, oil absorption increases
It is high so that in oil paint, powder will absorb a large amount of resins, not only cause resin waste, but also will seriously affect painting
The glossiness and hardness number of film.
Dosage situation based on titanium dioxide and talcum powder, in order to ensure that film has preferable covering power, and meanwhile it is again not right
The indexs such as glossiness, the hardness of film generate harmful effect, need consider both titanium dioxide and talcum powder bulk density between
Relationship.
The industrial titanium dioxide of variety classes, talcum powder, the mixing by different quality than raw material are taken, while limiting talcum powder
With the absolute value of titanium dioxide bulk density difference, the composition of different numbers is obtained, coating is made and detects its key index, work
Other parameters take median in skill.
As shown in table 6, when titanium dioxide and the absolute value of talcum powder bulk density difference are more than 0.15g/cm3When, coating
Coating film gloss degree is decreased obviously.Therefore in the present invention, titanium dioxide and the absolute value of talcum powder bulk density difference are not more than
0.15g/cm3。
6 titanium dioxide bulk density of table and influence of the talcum powder bulk density difference to coating property
Note：According to the glossiness of GB/T 9754-2007 standard detection coating.
Experimental example 7
Usually in paint field, the oil absorption of color stuffing powder primarily directed to resin absorption, if its oil absorption mistake
Greatly so that in oil paint, powder can absorb a large amount of resins, cause resin waste, increase production cost, in addition powder oil suction
The size of amount is affected to the performance of film, while viscosity influence when to coating material production is also larger.
Meanwhile in order to avoid in different batches, because talcum powder, titanium dioxide oil absorption difference due to cause its composition to be inhaled
Oily performance inconsistency is excessive, influences the indexs such as viscosity, coating film gloss degree and the hardness of coating, needs to consider talcum powder and titanium dioxide two
Relationship between person's oil absorption.
The industrial titanium dioxide of variety classes, talcum powder, the mixing by different quality than raw material are taken, while limiting talcum powder
With the absolute value of titanium dioxide oil absorption difference, the composition of different numbers is obtained, coating is made and detects its key index, technique
Middle other parameters take median.
As shown in table 7, when talcum powder and the absolute value of titanium dioxide oil absorption difference be not or not this section 6~12g/100g
When, coating film gloss degree is decreased obviously.Therefore in the present invention, talcum powder and the absolute value of titanium dioxide oil absorption difference are more than 6g/
100g is less than 12g/100g.
7 talcum powder oil absorption of table and influence of the titanium dioxide oil absorption difference to coating property
Note：According to the glossiness of GB/T 9754-2007 standard detection coating.
Also to ensure that the application performance of final coating, and production cost is controlled accordingly, talcum powder is sheet knot
The talcum powder of structure, one side can reduce interparticle gap, reduce the oil absorption of talcum powder and titanium white compound powder, another
Aspect has the ability of good reflection light, this just makes the film of coating obtained have preferable hardness and glossiness；Together
When talcum powder this laminated structure both can effectively improve the levelability of coating, reduce holiday, and can effectively prolong
The diffusion path of long corrosive medium, to improve the corrosion resistance of coating.
Titanium dioxide can be rutile type titanium white, anatase thpe white powder, rutile type titanium white and anatase thpe white powder
Mix one kind in titanium dioxide.Preferably, above-mentioned titanium dioxide selects the mixing of rutile type titanium white and anatase thpe white powder
The mass ratio of titanium dioxide, wherein rutile type titanium white and anatase thpe white powder is 1:2.5~4.5.In most formulation for coating material,
More only with a kind of titanium white powder raw material of crystal form so that titanium dioxide application is more single, in the present invention preferably,
Rutile type titanium white and anatase thpe white powder are used in mixed way, Mixed crystal effect is generated, is conducive to improve TiO2Catalysis
Activity, to make coating have excellent optical absorptive character and photocatalysis performance, can be improved related coating solar cell,
The fields applications such as water pollution control, air purification, indoor pollution processing.
Meanwhile the particle morphology of titanium dioxide is spherical shape, Oxygen potential >=90%, this spherical structure of titanium dioxide, object
Change property to stablize, weatherability is strong, and the weathering performance of coating can be improved；Simultaneously because spherical particle morphology, can greatly reduce titanium
The coefficient of kinetic friction of white powder enhances its mobility in coating, improves the easy act of coating；In addition talcum is also improved
The heap density of powder and titanium white compound powder, improves the compactness of combination powder, can enhance the mechanical performance of film.
The specific implementation mode of the present invention is further described with reference to embodiments, is not therefore limited the present invention
System is within the scope of the embodiment described.
Embodiment 1
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 8 μm, bulk density is
0.65g/cm3, oil absorption 30g/100g, whiteness 95%；Titanium dioxide D50It is 3 μm, bulk density 0.8g/cm3, oil absorption is
24g/100g, whiteness 95%；The mass ratio of talcum powder and titanium dioxide is 1:9；The size distribution of composition is (mass accumulation ＜
80% granularity)/(granularity of mass accumulation ＜ 20%)=10；The particle morphology of above-mentioned tallcum powder method is laminated structure, titanium white
It is spherical shape, Oxygen potential 90% that powder, which uses rutile type titanium white, particle morphology,.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
Talcum powder is mixed with the sieving of titanium white powder raw material, talcum powder and titanium white compound powder is made.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 1 the results are shown in Table 8, table 9.
Embodiment 2
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 5 μm, bulk density is
0.8g/cm3, oil absorption 27g/100g, whiteness 93%；Titanium dioxide D50It is 3.5 μm, bulk density 0.75g/cm3, oil absorption
For 18g/100g, whiteness 96%；The mass ratio of talcum powder and titanium dioxide is 1:1；The size distribution of composition is (mass accumulation
The granularity of ＜ 80%)/(granularity of mass accumulation ＜ 20%)=8；The particle morphology of above-mentioned tallcum powder method is laminated structure, titanium white
It is spherical shape, Oxygen potential 95% that powder, which uses anatase titanium dioxide type titanium dioxide, particle morphology,.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
By titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and is stirred evenly at a constant temperature
Slurrying, through washing, filtering moves in the ball grinder for having been loaded with titanium dioxide and nonylphenol polyoxyethylene ether the talcum powder after pickling,
Ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium white compound powder.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 2 the results are shown in Table 8, table 9.
Embodiment 3
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 2 μm, bulk density is
0.95g/cm3, oil absorption 29g/100g, whiteness 96%；Titanium dioxide D50It is 2 μm, bulk density 0.85g/cm3, oil absorption
For 27g/100g, whiteness 97%；The mass ratio of talcum powder and titanium dioxide is 1:5；The size distribution of composition is (mass accumulation
The granularity of ＜ 80%)/(granularity of mass accumulation ＜ 20%)=6；The particle morphology of above-mentioned tallcum powder method is laminated structure, titanium white
Powder uses the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile type titanium white and anatase titanium dioxide
The mass ratio of powder is 1:2.5, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential 94%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
By titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and is stirred evenly at a constant temperature
Slurrying, through washing, filtering moves in the ball grinder for having been loaded with titanium dioxide and fatty alcohol polyoxyethylene ether the talcum powder after pickling,
Ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium white compound powder.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 3 the results are shown in Table 8, table 9.
Embodiment 4
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 1.1 μm, bulk density is
0.84g/cm3, oil absorption 28g/100g, whiteness 96%；Titanium dioxide D50It is 0.2 μm, bulk density 0.8g/cm3, oil absorption
For 22g/100g, whiteness 98%；The mass ratio of talcum powder and titanium dioxide is 1:4.4；The size distribution of composition is (accumulation matter
Measure the granularity of ＜ 80%)/(granularity of mass accumulation ＜ 20%)=4.5；The particle morphology of above-mentioned tallcum powder method is laminated structure,
Titanium dioxide uses the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile type titanium white and anatase titanium dioxide
The mass ratio of titanium dioxide is 1:4, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential 96%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
By titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and is stirred evenly at a constant temperature
Slurrying, through washing, filtering moves in the ball grinder for having been loaded with titanium dioxide and fatty alcohol polyoxyethylene ether the talcum powder after pickling,
Ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium white compound powder.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 4 the results are shown in Table 8, table 9.
Embodiment 5
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 2.5 μm, bulk density is
0.9g/cm3, oil absorption 30g/100g, whiteness 94%；Titanium dioxide D50It is 0.25 μm, bulk density 0.81g/cm3, oil suction
Amount is 25g/100g, whiteness 97%；The mass ratio of talcum powder and titanium dioxide is 1:2.5；The size distribution of composition is (accumulation
The granularity of quality ＜ 80%)/(granularity of mass accumulation ＜ 20%)=3；The particle morphology of above-mentioned tallcum powder method is laminated structure,
Titanium dioxide uses the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile type titanium white and anatase titanium dioxide
The mass ratio of titanium dioxide is 1:4.5, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential 92%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
By titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and is stirred evenly at a constant temperature
Slurrying, through washing, filtering moves in the ball grinder for having been loaded with titanium dioxide and nonylphenol polyoxyethylene ether the talcum powder after pickling,
Ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium white compound powder.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 5 the results are shown in Table 8, table 9.
Embodiment 6
A kind of talcum powder and titanium white compound powder applied on coating, wherein talcum powder D50It it is 0.5 μm, bulk density is
0.85g/cm3, oil absorption 30g/100g, whiteness 95%；Titanium dioxide D50It is 3 μm, bulk density 0.85g/cm3, oil absorption
For 25g/100g, whiteness 98%；The mass ratio of talcum powder and titanium dioxide is 1:4.5；The size distribution of composition is (accumulation matter
Measure the granularity of ＜ 80%)/(granularity of mass accumulation ＜ 20%)=2；The particle morphology of above-mentioned tallcum powder method is laminated structure, titanium
White powder uses the mixing titanium dioxide of rutile type titanium white and anatase thpe white powder, wherein rutile type titanium white and anatase titanium dioxide titanium
The mass ratio of white powder is 1:3, the particle morphology of above-mentioned titanium dioxide is spherical shape, Oxygen potential 94%.
A kind of preparation method applied to the talcum powder and titanium white compound powder on coating：
By titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid solution is added in talcum powder, and is stirred evenly at a constant temperature
Slurrying, through washing, filtering moves in the ball grinder for having been loaded with titanium dioxide and fatty alcohol polyoxyethylene ether the talcum powder after pickling,
Ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium white compound powder.
Using existing coating producing process, in terms of parts by weight, by formula (195 parts of talcum powder and titanium white compound powder,
5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, 70 parts of CPP resins, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone,
10 parts of ethyl ester, 2 parts of paraffin) coating is prepared, and correlated performance detection is carried out to it, sample number into spectrum 6 the results are shown in Table 8, table 9.
Comparative example
Using the embodiment 4 of 104312225 B of patent of invention CN, coating is prepared.
Correlated performance detection is carried out to coating products, sample number into spectrum 7 the results are shown in Table 8, table 9.
8 coating of table and its film ostensibly detection, the detection of film yellowing resistance
Note：1, GB/T 5950-2008 are carried out according to national standards for the detection of whiteness；The detection of covering power is marked according to country
Quasi- GB/T 1726-1979 are carried out；GB/T 9754-2007 are carried out according to national standards for the detection of coating film gloss degree；Yellowing resistance
Detection according to national standards GB/T 23987-2009 carry out；
2, the detection method of appearance of film is：Coating is applied on model, places for 24 hours, is visually observed in the case where scattering daylight,
If smearing uniform, no sag, pin hole, the defects of film coating such as cracks and flakes off at floating, then is chosen as normal；
3, the detection method of coating bin stability is：The sample of about 0.5L is fitted into the storage tank of good seal, in tank
It there are about 10% space, is put into after sealing in (50 ± 2) DEG C thermostatic drying chamber, takes out after 7 days and placed at (23 ± 2) DEG C
3h, the front and back coating state of comparison storage.
The machinery and mechanics properties testing of 9 film of table
Note：GB/T 6739-2006 are carried out according to national standards for the detection of pencil hardness；The detection of adhesive force is according to country
Standard GB/T 9286-1998 are carried out；GB/T 1732-1993 are carried out according to national standards for the detection of impact resistance.
As can be seen from Table 8, according to the method for the present invention, the coating prepared by talcum powder and titanium white compound powder, due to
The grain size relationship of the grain size of talcum powder and titanium dioxide, size distribution and the two is defined in technique, while in whiteness, heap
Talcum powder and titanium dioxide are controlled respectively in the indexs such as product density relationship, oil factor relationship, it is ensured that talcum powder and titanium white
Compound powder good deployment conditions and coating film gloss degree in coating, while coating obtained is steady in whiteness, covering power, storage
Qualitative upper outline is better than comparative example product；In addition for the present invention in talcum powder and titanium white compound powder, titanium dioxide is spherical structure,
Its physicochemical stability is stronger, and obtained coating is better than comparative example product on yellowing resistance.
In the present invention since the grain size relationship, bulk density relationship, oil absorption by controlling talcum powder and titanium dioxide are closed
The indexs such as system, reduce the porosity between composition, improve the compactness of composition powder, ensure that composition in coating
In deployment conditions, optimize the distribution of force situation inside coating, improve the active force between each component in coating.Pass through
Table 9 can be seen that coating prepared according to the methods of the invention, and film is in mechanical property such as pencil hardness, adhesive force, impact resistances
Can on be better than comparative example product.
Finally it is to be appreciated that above example is only used to illustrate the technical scheme of the present invention and is not limited, although reference
Technical scheme of the present invention is described in detail in preferred embodiment, it will be appreciated by those skilled in the art that can be to this hair
Bright technical solution is modified or replaced equivalently, and without departing from the purpose and scope of the invention, should all be covered in this hair
In bright protection domain.
Claims (8)
1. a kind of talcum powder and titanium white compound powder, the mass ratio between the talcum powder and titanium dioxide applied on coating is
1:1-1:9, which is characterized in that in the composition, the median D of talcum powder50≤ 8 μm, the median D of titanium dioxide50≤
5 μm, the absolute value of the median difference between talcum powder and titanium dioxide is not more than 5 μm；The accumulation of titanium dioxide and talcum powder is close
The absolute value for spending difference is not more than 0.15g/cm3；Talcum powder and the absolute value of titanium dioxide oil absorption difference are more than 6g/100g, small
In 12g/100g.
2. a kind of talcum powder and titanium white compound powder applied on coating according to claim 1, which is characterized in that institute
The size distribution for stating composition is (granularity of mass accumulation ＜ 80%)/(granularity of mass accumulation ＜ 20%)≤10.
3. a kind of talcum powder and titanium white compound powder applied on coating according to claim 1, which is characterized in that make
To be preferred, the mass ratio between talcum powder and titanium dioxide is 12:53.
4. a kind of talcum powder and titanium white compound powder, feature applied on coating according to claim 1 or 2 exists
In the particle appearance of the talcum powder is laminated structure.
5. a kind of talcum powder and titanium white compound powder, feature applied on coating according to claim 1 or 2 exists
In the titanium dioxide can be the mixed of rutile type titanium white, anatase thpe white powder, rutile type titanium white and anatase thpe white powder
Close one kind in titanium dioxide.
6. a kind of talcum powder and titanium white compound powder applied on coating according to claim 5, which is characterized in that institute
The particle morphology for stating titanium dioxide is spherical shape, Oxygen potential >=90%.
7. a kind of talcum powder and titanium white compound powder, feature applied on coating according to claim 1 or 2 exists
In the preparation method of the composition is that, by titanium dioxide, talcum powder raw material carries out air-flow crushing respectively；Acid is added in talcum powder
Solution, and slurrying is stirred evenly at a constant temperature, the talcum powder after pickling moves to through washing, filtering and has been loaded with titanium dioxide and a small amount of surface
In the ball grinder of activating agent, ball-milling medium is added, and wet-milling is aged, filters, it is dry, to obtain talcum powder and titanium dioxide combination
Object finished product.
8. a kind of coating, which is characterized in that the group of the coating becomes, talcum powder and titanium dioxide group as claimed in claim 1 or 2
Close object, nitrocotton, EVA resin, MP45 resins, CPP resins, toluene, propyl alcohol, butanone, ethyl ester, paraffin；Wherein each component is with weight
Amount number is calculated as, 195 parts of talcum powder and titanium white compound powder, 5 parts of nitrocotton, 123 parts of EVA resin, 65 parts of MP45 resins, CPP
70 parts of resin, 100 parts of toluene, 10 parts of propyl alcohol, 20 parts of butanone, 10 parts of ethyl ester, 2 parts of paraffin.
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