CN109627891A - A kind of coating of the attapulgite clay compounded object containing hydrotalcite-and preparation method thereof - Google Patents
A kind of coating of the attapulgite clay compounded object containing hydrotalcite-and preparation method thereof Download PDFInfo
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- CN109627891A CN109627891A CN201811588533.0A CN201811588533A CN109627891A CN 109627891 A CN109627891 A CN 109627891A CN 201811588533 A CN201811588533 A CN 201811588533A CN 109627891 A CN109627891 A CN 109627891A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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Abstract
The present invention provides a kind of attapulgite clay compounded object of hydrotalcite-and preparation methods, and coating and preparation method comprising the compound, the preparation method of the attapulgite clay compounded object of hydrotalcite-, include the following steps: to add organic acid soln after (A) roasts hydrotalcite, silane coupling agent stirs evenly, dynamic crystallization at 60-150 DEG C, cooling obtain organic-silicon-modified intercalated houghite slurries；(B) attapulgite is uniformly mixed to obtain organic-silicon-modified attapulgite slurry with deionized water, silane coupling agent；(C) the organic-silicon-modified intercalated houghite slurries and the organic-silicon-modified attapulgite slurry are mixed, add ATS (Ammonium thiosulphate) to get.The performance of the attapulgite clay compounded object various aspects of hydrotalcite-of the invention is more excellent, there is the raising of matter in terms of the thermal-insulation coating heat-proof quality and stability that are prepared using the compound.
Description
Technical field
The present invention relates to coating manufacture fields, in particular to a kind of attapulgite clay compounded object of hydrotalcite-and its preparation
Method also relates to the coating comprising above-mentioned compound and the preparation method of the coating.
Background technique
China's construction area is more, and newly-increased built speed is fast, and the total energy-saving compliance rate of building is low, and building energy consumption is China three
One of " big power consumer " greatly, the serious economic development for restricting China, it is extremely urgent to carry out building energy conservation.Insulation for building applies
Material be it is a kind of integrate heat preservation, it is heat-insulated, decoration safety, energy-saving and environmental protection, economy novel architecture coating.In building
Surface coats one layer of heat preservation insulating moulding coating, can both reduce room temperature, and indoor heat can also be made to be not easy quickly to scatter and disappear, played
The effect of " cool in summer and warm in winter ", this is to reduce most simple and direct, the effective mode of building energy consumption, therefore the coating of this insulation is wide
By the favor of the majority of consumers.
In the prior art, hydrotalcite-based compound is a kind of double-metal hydroxide with layer structure, has composition
With the properties such as structure is controllable, thermal stability, alkalinity, infrared absorption, ultraviolet-resistant, adds it in coating, can make
Coating has the function of good heat-insulation and heat-preservation, anti-corrosion, ageing-resistant, weather-proof etc., however due to the hydrotalcite-based compound in coating
Itself is positively charged, and face, filler are generally negatively charged, are so easy to cause lotion unstable, influence its performance and service life.
In addition, hydrotalcite aqueous insulation insulating moulding coating there are still heat insulation undesirable, poor adhesive force, film are easy
Phenomena such as being now bubbled, falling off, with first-class factor restrict hydrotalcite aqueous insulation insulating moulding coating energy saving building field into
One step application.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of organic-silicon-modified hydrotalcite-attapulgite with intercalation configuration
The preparation method of compound, the preparation method itself is easy to operate, operating procedure is successive close, no three wastes in operating process
It generates, whole environmentally protective, operating condition is also relatively milder, by using modified organic acid intercalation neatly in the preparation method
Stone to increase the porosity of filler, while with it is attapulgite clay compounded so that the coating of subsequent preparation has reflection-type simultaneously
And barrier property, hence it is evident that improve the thermal and insulating performance of coating, and by the silane coupling agent containing multiple reactive groups with
Organic intercalation hydrotalcite is mutually crosslinked with attapulgite, thus the effective solution stability problem of hydrotalcite coating itself.
The second object of the present invention is to provide the attapulgite clay compounded object of hydrotalcite-that above-mentioned preparation method is prepared,
The performance of the compound various aspects is more excellent, there is the raising of matter in terms of thermal and insulating performance and stability.
The third object of the present invention is to provide the formulation for coating material comprising the attapulgite clay compounded object of above-mentioned hydrotalcite-, the painting
For material by using the compound as main component, significantly improving its heat preservation and insulation, preparation-obtained aqueous insulation is heat-insulated
Coating has good adhesive force, will not be bubbled, fall off in use process, in addition, the coating using water as dispersing agent, effectively drops
The low discharge of VOC, meets the theory of Green Chemistry.
The fourth object of the present invention is to provide above-mentioned coating further preparation method, preparation method operating procedure letter
Single, step linking in front and back is close, and environmentally protective, the coating property being prepared is excellent, is capable of forming good economic benefit, is worth
It obtains and is more widely applied.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
The present invention provides a kind of preparation methods of the attapulgite clay compounded object of hydrotalcite-, include the following steps:
(A) organic acid soln is added after roasting hydrotalcite, silane coupling agent stirs evenly, dynamic crystalline substance at 60-150 DEG C
Change, cooling obtains organic-silicon-modified intercalated houghite slurries；
(B) attapulgite is uniformly mixed to obtain organic-silicon-modified attapulgite slurry with deionized water, silane coupling agent；
(C) the organic-silicon-modified intercalated houghite slurries and the organic-silicon-modified attapulgite slurry are mixed, is added
Add ATS (Ammonium thiosulphate) to get.
In the prior art, hydrotalcite-based compound is a kind of double-metal hydroxide with layer structure, has composition
With the properties such as structure is controllable, thermal stability, alkalinity, infrared absorption, ultraviolet-resistant, adds it in coating, can make
Coating has the function of good heat-insulation and heat-preservation, anti-corrosion, ageing-resistant, weather-proof etc., however, due to the hydrotalcite-based compound in coating
Itself is positively charged, and pigment is generally negatively charged, is so easy to cause lotion unstable, influences its performance and service life.
In addition, hydrotalcite aqueous insulation insulating moulding coating there are still heat insulation undesirable, poor adhesive force, film are easy
Phenomena such as being now bubbled, falling off, with first-class factor restrict hydrotalcite aqueous insulation insulating moulding coating energy saving building field into
One step application.
In order to solve the above technical problems, The present invention provides a kind of organic-silicon-modified neatlys with intercalation configuration
The preparation method of the attapulgite clay compounded object of stone-in the preparation method, by using organic acid intercalated houghite, can promote this
The thermal and insulating performance of body compound, while also added silane coupling agent and intersecting with organic intercalation hydrotalcite and attapulgite
Connection, thus solve the most fundamental stability problem of hydrotalcite coating, certainly in entire preparation method, hydrotalcite and bumps
After stick soil is first modified respectively, it is finally mixed to form compound mutually again, in this way by after modified ingredient interworking, Ke Yizeng
Add crosslinking degree between the two, improve stability, be also beneficial to it is subsequent when preparing coating, with the component of polymer in coating it
Between cross-linked stable effect, so needed in specific preparation process it is modified respectively could be mixed again, be in strict accordance with
Preparation method of the invention, which operates, to be executed.
The bimetallic oxide for forming stratiform during hydrotalcite-modified by roasting, then mixes with organic acid soln
Afterwards, it can absorb the group of organic acid between layers to reach stable layer structure, furthermore passes through adding for silane coupling agent
Add can to avoid particle in complex systems assembly to causing substance to be easy to happen reunion, increasing when being subsequently formed coating emulsion
Add mutual crosslinked action between polymer, realizes firm bonding.
Subsequent addition ATS (Ammonium thiosulphate) is to polymerize with remaining excessive organic acid.
Preferably as further enforceable scheme, in the step (A), the pH control of organic acid soln 5-7 it
Between；
Preferably, the temperature of hydrotalcite roasting is 400-600 DEG C, and the time of roasting is 1-4h；
Preferably, the temperature of dynamic crystallization is 60-150 DEG C, and the time of dynamic crystallization is 4-20h, cooling after dynamic crystallization
To 60 DEG C or less；
Preferably, contain carbon-carbon double bond in the structure of the organic acid, more preferably acrylic acid, in methacrylic acid extremely
Few one kind.
Preferably as further enforceable scheme, in the step (B), the time of mixing is 1-3h, stirring
Temperature be 60-100 DEG C.
Preferably as further enforceable scheme, in the step (C), by the organic-silicon-modified intercalation neatly
The time that stone slurries and the organic-silicon-modified attapulgite slurry are mixed is 1-3h, and the temperature of stirring is 60-100 DEG C；
Preferably, stirring keeps the temperature 2h after adding ATS (Ammonium thiosulphate), filters, is dry, crushing；
Preferably, the hydrolyzable groups number of the silane coupling agent is two or more, more preferably methyl triethoxy
Silane, methyltrimethoxysilane, tetraethoxysilane, ethyl trimethoxy silane, ethyl triethoxysilane, vinyl three
At least one of Ethoxysilane, vinyltrimethoxysilane, propyl-triethoxysilicane.
In above-mentioned each prioritization scheme, by carrying out optimal correction to the operating parameter being related in entire preparation method
Afterwards, to promote the quality for the compound being prepared, the temperature especially stirred and time need to control in suitable range
It is interior, if temperature too low possible influence reaction is normally carried out.
The present invention also provides the attapulgite clay compounded objects of hydrotalcite-prepared by the preparation method；
Preferably, in the compound, the mass ratio of hydrotalcite and attapulgite is (1-7): between (1-2).
It is preferably controlled in above range by the proportion of practice discovery between the two, more preferably in the compound, neatly
The mass ratio of stone and attapulgite can be 2:1.2,3:1.3,4:1.6 etc., and only control compares parameter in more excellent quality
Under, stability and it is subsequent be prepared into coating after, can be only achieved on the film forming of coating, service life best.
The present invention still further provides the coating comprising above-mentioned compound, is mainly made by following raw material: with mass parts
Number meter, 20-40 parts of water based acrylic resin, 5-20 parts of alkyd resin, the attapulgite clay compounded object 25-50 of hydrotalcite-
Part, 1-5 parts of pigment, 0.1-2 parts of wetting agent, 0.1-2 parts of dispersing agent, 0.1-2 parts of defoaming agent, 0.1-2 parts of levelling agent, coalescing agent
0.1-5 parts, 10-50 parts of deionized water.
Preferably, for the proportion between optimizing raw material, as further enforceable scheme, in terms of mass fraction, water
30-35 parts of Hydroxylated acrylic resin of property, 10-15 parts of alkyd resin, attapulgite clay compounded object 30-40 parts of the hydrotalcite-, pigment
2-4 parts, 0.5-1.5 parts of wetting agent, 0.5-1.5 parts of dispersing agent, 0.5-1.5 parts of defoaming agent, 0.5-1.5 parts of levelling agent, film forming helps
0.5-1.5 parts of agent, 20-40 parts of deionized water.
By controlling each material composition in coating in than convenient range, coating various aspects are significantly improved
Performance.
In addition, including the following steps: the present invention also provides the preparation method of above-mentioned coating
(A) water based acrylic resin, alkyd resin, portions of de-ionized water stirring are sufficiently mixed；
(B) wetting agent, dispersing agent, the attapulgite clay compounded object of hydrotalcite-, pigment is successively added dispersion is sufficiently stirred and is divided
Dispersion liquid；
(C) levelling agent, coalescing agent, defoaming agent are added in Xiang Suoshu dispersion liquid to stir evenly, are eventually adding surplus
Deionized water adjusts viscosity.
The preparation method is by each ingredient of addition stage by stage, so that the coating uniformity being prepared is more preferably, addition
Sequence is considered according to the specific nature and function of each ingredient, and similar suitable of Nature comparison adds simultaneously
Add, the coating degrees of fusion being prepared is good, and quality is more guaranteed.
Preferably as further enforceable scheme, in the step (A), revolving speed be 500r/min-800r/min it
Between.
Preferably as further enforceable scheme, in the step (B), revolving speed 2000r/min-2500r/
min。
Compared with prior art, the invention has the benefit that
1) in aqueous insulation insulating moulding coating of the invention, organic acid intercalated houghite is devised, the hole of filler is increased
Rate, at the same with it is attapulgite clay compounded, compounded with pigment, so that the film reflectivity with higher formed, while having reflection
The function of type and barrier property type insulating moulding coating, hence it is evident that the thermal and insulating performance of the coating of raising；
2) present invention uses the organic acid intercalated houghite of carbon-carbon double bonds, as needed, the carbon carbon in interlayer intercalator
Double bond can carry out polymerization reaction with acrylic monomer, and then improve the compatibility between filler and film forming matter, so that
The homogeneity and flatness of coating are improved, and expand its application range；
3) one aspect of the present invention utilizes the principle of " xenogenesis charge attracts each other ", with positively charged organic intercalation hydrotalcite with
It is electronegative attapulgite clay compounded, on the other hand with silane coupling agent and organic intercalation hydrotalcite containing multiple reactive groups
It is mutually crosslinked with attapulgite, to solve the most fundamental stability problem of hydrotalcite coating；
4) silicone hydroxyl uncrosslinked in the attapulgite clay compounded object of organic-silicon-modified intercalated houghite-can further with building
Silicate be crosslinked so that the aqueous insulation insulating moulding coating has good adhesive force, will not rouse in use process
Steep, fall off, general skin the problem of, long service life, stability is good；
5) coating of the invention effectively reduces the discharge of VOC using water as dispersing agent, meets the theory of Green Chemistry.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
Preparation example 1
The preparation of the organic-silicon-modified attapulgite clay compounded object of intercalated houghite-:
1) it weighs 60.0g acrylic acid to be dissolved in deionized water, adjusts pH with the sodium hydroxide of 6mol/L and be made into the third of pH=5
Olefin(e) acid solution weighs 50g hydrotalcite in 400 DEG C of roasting 1h, is added in above-mentioned organic acid soln after cooling, is then added
17.6g methyl trimethoxy oxosilane, stirs evenly, the dynamic crystallization 20h at 60 DEG C, is cooled to 60 DEG C and inserts to get organic-silicon-modified
Layer hydrotalcite slurry.
2) it weighs 50g attapulgite to be added into deionized water, 3.0g methyltrimethoxysilane is then added, stirring is equal
Even, return stirring 3h is at 60 DEG C to get organic-silicon-modified attapulgite slurry；
3) above-mentioned obtained organic-silicon-modified intercalated houghite slurries and organic-silicon-modified attapulgite slurry are mixed,
The return stirring 1h at 100 DEG C, then add 0.25g ATS (Ammonium thiosulphate) into gained slurries, stirring, heat preservation 2h filter, dry, powder
It is broken to get the attapulgite clay compounded object of organic-silicon-modified intercalated houghite-.
Preparation example 2
The preparation of the organic-silicon-modified attapulgite clay compounded object of intercalated houghite-:
1) it weighs 86.5g methacrylic acid to be dissolved in deionized water, adjusts pH with the sodium hydroxide of 6mol/L and be made into pH=7
Acrylic acid solution, weigh 175g hydrotalcite in 600 DEG C of roasting 4h, be added in above-mentioned organic acid soln after cooling down, then plus
Enter 12.3g tetraethoxysilane, stir evenly, the dynamic crystallization 4h at 150 DEG C is cooled to 50 DEG C and inserts to get organic-silicon-modified
Layer hydrotalcite slurry.
2) it weighs 50g attapulgite to be added into deionized water, 3.0g tetraethoxysilane is then added, stirs evenly,
Return stirring 1h is at 100 DEG C to get organic-silicon-modified attapulgite slurry；
3) above-mentioned obtained organic-silicon-modified intercalated houghite slurries and organic-silicon-modified attapulgite slurry are mixed,
The return stirring 3h at 60 DEG C, then add 0.25g ATS (Ammonium thiosulphate) into gained slurries, stirring, heat preservation 2h filter, dry, powder
It is broken to get the attapulgite clay compounded object of organic-silicon-modified intercalated houghite-.
Preparation example 3
The preparation of the organic-silicon-modified attapulgite clay compounded object of intercalated houghite-:
1) it weighs 86.5g methacrylic acid to be dissolved in deionized water, adjusts pH with the sodium hydroxide of 6mol/L and be made into pH=6
Acrylic acid solution, weigh 200g hydrotalcite in 500 DEG C of roasting 3h, be added in above-mentioned organic acid soln after cooling down, then plus
Enter 12.3g ethyl triethoxysilane, stir evenly, the dynamic crystallization 10h at 100 DEG C is cooled to 50 DEG C and changes to get organosilicon
Property intercalated houghite slurries.
2) it weighs 50g attapulgite to be added into deionized water, 3.0g vinyltrimethoxysilane, stirring is then added
Uniformly, at 80 DEG C return stirring 2h to get organic-silicon-modified attapulgite slurry；
3) above-mentioned obtained organic-silicon-modified intercalated houghite slurries and organic-silicon-modified attapulgite slurry are mixed,
The return stirring 2h at 80 DEG C, then add 0.25g ATS (Ammonium thiosulphate) into gained slurries, stirring, heat preservation 2h filter, dry, powder
It is broken to get the attapulgite clay compounded object of organic-silicon-modified intercalated houghite-.
Embodiment 1
The preparation of aquosity heat insulating heat preserving paint: by 20 parts of water based acrylic resins, 20 parts of alkyd resins, 15mL go from
Sub- water is stirred under the revolving speed of 500r/min and is sufficiently mixed；Then 2 parts of wetting agents, 2 parts of dispersing agents, 50 parts of preparation examples are gradually added into
Modification intercalated houghite obtained by 1-attapulgite clay compounded object, 5 parts of pigment stir sufficiently mixed under the revolving speed of 2000r/min
It is bonded to suitable fineness；5 parts of coalescing agents, 0.1 part of levelling agent, 0.1 part of defoaming agent is added to stir, and be added
35ml deionized water is adjusted to suitable viscosity.
Embodiment 2
The preparation of aquosity heat insulating heat preserving paint: by 40 parts of water based acrylic resins, 5 parts of alkyd resins, 5mL deionization
Water is stirred under the revolving speed of 800r/min and is sufficiently mixed；Then 0.1 part of wetting agent, 0.1 part of dispersing agent, 25 parts of preparations are gradually added into
Modification intercalated houghite obtained by example 2-attapulgite clay compounded object, 1 part of pigment stir abundant under the revolving speed of 2500r/min
It mixes to suitable fineness；0.1 part of coalescing agent, 2 parts of levelling agents, 2 parts of defoaming agents are added to stir, and be added
5ml deionized water is adjusted to suitable viscosity.
Embodiment 3
The preparation of aquosity heat insulating heat preserving paint: by 35 parts of water based acrylic resins, 15 parts of alkyd resins, 5mL go from
Sub- water is stirred under the revolving speed of 700r/min and is sufficiently mixed；Then 1.5 parts of wetting agents, 0.5 part of dispersing agent, 30 parts of systems are gradually added into
Modification intercalated houghite-attapulgite clay compounded object, 2 parts of pigment obtained by standby example 3, stir under the revolving speed of 2100r/min and fill
Divide and mixes to suitable fineness；1.5 parts of coalescing agents, 0.5 part of levelling agent, 1.5 parts of defoaming agents are added to stir, and
15ml deionized water is added and is adjusted to suitable viscosity.
Embodiment 4
The preparation of aquosity heat insulating heat preserving paint: by 30 parts of water based acrylic resins, 10 parts of alkyd resins, 20mL go from
Sub- water is stirred under the revolving speed of 600r/min and is sufficiently mixed；Then 0.5 part of wetting agent, 1.5 parts of dispersing agents, 40 parts of systems are gradually added into
Modification intercalated houghite-attapulgite clay compounded object, 4 parts of pigment obtained by standby example 3, stir under the revolving speed of 2300r/min and fill
Divide and mixes to suitable fineness；0.5 part of coalescing agent, 1.5 parts of levelling agents, 0.5 part of defoaming agent is added to stir, and
20ml deionized water is added and is adjusted to suitable viscosity.
Comparative example 1
Concrete operation step and embodiment 4 are consistent, modification intercalation neatly obtained by the 40 parts of preparation examples 3 only added
The attapulgite clay compounded object of stone-replaces with 40 parts of hydrotalcite material.
Number involved in above-described embodiment and comparative example is mass fraction.
Experimental example 1
The particularly relevant performance for the coating that 3-4 of the embodiment of the present invention, comparative example 1 are prepared is tested, it is specific to survey
It is as shown in table 1 below to try performance data.
1 testing result of table
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of preparation method of the attapulgite clay compounded object of hydrotalcite-, which comprises the steps of:
(A) addition organic acid soln, silane coupling agent stir evenly after roasting hydrotalcite, and dynamic crystallization at 60-150 DEG C is cold
But organic-silicon-modified intercalated houghite slurries are obtained；
(B) attapulgite is uniformly mixed to obtain organic-silicon-modified attapulgite slurry with deionized water, silane coupling agent；
(C) the organic-silicon-modified intercalated houghite slurries and the organic-silicon-modified attapulgite slurry are mixed, adds sulphur
Ammonium thiosulfate to get.
2. preparation method according to claim 1, which is characterized in that in the step (A), the pH of organic acid soln is controlled
Between 5-7；
Preferably, the temperature of hydrotalcite roasting is 400-600 DEG C, and the time of roasting is 1-4h；
Preferably, the temperature of dynamic crystallization is 60-150 DEG C, and the time of dynamic crystallization is 4-20h, is cooled to 60 after dynamic crystallization
DEG C or less；
Preferably, contain carbon-carbon double bond in the structure of the organic acid, more preferably acrylic acid, at least one in methacrylic acid
Kind.
3. preparation method according to claim 1, which is characterized in that in the step (B), the time of mixing is 1-
3h, the temperature of stirring are 60-100 DEG C.
4. preparation method according to claim 1, which is characterized in that, will be described organic-silicon-modified slotting in the step (C)
The time that layer hydrotalcite slurry and the organic-silicon-modified attapulgite slurry are mixed is 1-3h, and the temperature of stirring is 60-
100℃；
Preferably, stirring keeps the temperature 2h after adding ATS (Ammonium thiosulphate), filters, is dry, crushing；
Preferably, the hydrolyzable groups number of the silane coupling agent be two or more, more preferably methyltriethoxysilane,
Methyltrimethoxysilane, tetraethoxysilane, ethyl trimethoxy silane, ethyl triethoxysilane, three ethoxy of vinyl
At least one of base silane, vinyltrimethoxysilane, propyl-triethoxysilicane.
5. the attapulgite clay compounded object of hydrotalcite-that the described in any item preparation methods of claim 1-4 are prepared；
Preferably, in the compound, the mass ratio of hydrotalcite and attapulgite is (1-7): between (1-2).
6. the coating of the compound using the claim 5, which is characterized in that be mainly made by following raw material: with mass parts
Number meter, 20-40 parts of water based acrylic resin, 5-20 parts of alkyd resin, the attapulgite clay compounded object 25-50 of hydrotalcite-
Part, 1-5 parts of pigment, 0.1-2 parts of wetting agent, 0.1-2 parts of dispersing agent, 0.1-2 parts of defoaming agent, 0.1-2 parts of levelling agent, coalescing agent
0.1-5 parts, 10-50 parts of deionized water.
7. coating according to claim 6, which is characterized in that in terms of mass fraction, water based acrylic resin 30-35
Part, 10-15 parts of alkyd resin, attapulgite clay compounded object 30-40 parts of the hydrotalcite-, 2-4 parts of pigment, wetting agent 0.5-1.5
Part, 0.5-1.5 parts of dispersing agent, 0.5-1.5 parts of defoaming agent, 0.5-1.5 parts of levelling agent, 0.5-1.5 parts of coalescing agent, deionized water
20-40 parts.
8. the preparation method of the described in any item coating of claim 5-7, which comprises the steps of:
(A) water based acrylic resin, alkyd resin, portions of de-ionized water are stirred；
(B) wetting agent, dispersing agent, the attapulgite clay compounded object of hydrotalcite-, pigment is successively added to be dispersed with stirring to obtain dispersion liquid；
(C) levelling agent, coalescing agent, defoaming agent are successively added in Xiang Suoshu dispersion liquid to stir evenly, be eventually adding surplus
Deionized water adjusts viscosity.
9. preparation method according to claim 8, which is characterized in that in the step (A), revolving speed 500r/min-
Between 800r/min.
10. preparation method according to claim 8, which is characterized in that in the step (B), revolving speed 2000r/min-
2500r/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588533.0A CN109627891B (en) | 2018-12-25 | 2018-12-25 | Coating containing hydrotalcite-attapulgite composite and preparation method thereof |
Applications Claiming Priority (1)
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| CN113372750A (en) * | 2021-05-11 | 2021-09-10 | 安徽万博材料科技有限公司 | Water-based multicolor paint based on lithium-based attapulgite and preparation method thereof |
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| CN106543476A (en) * | 2016-12-08 | 2017-03-29 | 肇庆学院 | A kind of composite for PVC heat stabilizer and preparation method thereof |
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| CN102408581A (en) * | 2011-10-24 | 2012-04-11 | 常州奥特纳新材料科技有限公司 | Attapulgite/hydrotalcite compound flame retardant material and preparation method thereof |
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| CN113372750A (en) * | 2021-05-11 | 2021-09-10 | 安徽万博材料科技有限公司 | Water-based multicolor paint based on lithium-based attapulgite and preparation method thereof |
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