CN114369290A - Surface organic modified talcum powder filler and preparation method and application thereof - Google Patents
Surface organic modified talcum powder filler and preparation method and application thereof Download PDFInfo
- Publication number
- CN114369290A CN114369290A CN202111521710.5A CN202111521710A CN114369290A CN 114369290 A CN114369290 A CN 114369290A CN 202111521710 A CN202111521710 A CN 202111521710A CN 114369290 A CN114369290 A CN 114369290A
- Authority
- CN
- China
- Prior art keywords
- talcum powder
- organically
- parts
- aqueous solution
- modified talc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical class O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000000945 filler Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 45
- 239000007864 aqueous solution Substances 0.000 claims abstract description 36
- -1 alkyl silicate Chemical compound 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000012756 surface treatment agent Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000000454 talc Substances 0.000 claims description 27
- 229910052623 talc Inorganic materials 0.000 claims description 27
- 235000012222 talc Nutrition 0.000 claims description 27
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 13
- 239000002861 polymer material Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 239000012257 stirred material Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 229910021645 metal ion Inorganic materials 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910001415 sodium ion Inorganic materials 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims description 2
- 229910001414 potassium ion Inorganic materials 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002351 wastewater Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 13
- 239000007822 coupling agent Substances 0.000 description 12
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 239000003085 diluting agent Substances 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000011256 inorganic filler Substances 0.000 description 5
- 229910003475 inorganic filler Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000006482 condensation reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000011112 process operation Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CAQWNKXTMBFBGI-UHFFFAOYSA-N C.[Na] Chemical compound C.[Na] CAQWNKXTMBFBGI-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The embodiment of the invention relates to the technical field of material processing, and particularly discloses a surface organic modified talcum powder filler and a preparation method and application thereof, wherein the surface organic modified talcum powder filler comprises the following raw materials: talcum powder, surface treating agent and solvent; wherein the surface treatment agent is an aqueous solution of an alkyl silicate. According to the embodiment of the invention, the talc powder is treated by adopting a wet process and taking an alkyl silicate aqueous solution as a surface treatment agent, so that the phenomenon of insufficient surface treatment uniformity effect in dry treatment is avoided, a large amount of waste water is not generated, the production cost is low, and the problem that the surface treatment uniformity effect cannot be ensured while the production cost is reduced in the existing talc powder filler surface treatment process is solved. Moreover, the preparation method provided by the embodiment of the invention is simple and has wide market prospect.
Description
Technical Field
The embodiment of the invention relates to the technical field of material processing, in particular to a surface organic modified talcum powder filler and a preparation method and application thereof.
Background
With the continuous progress of science and technology, the performance requirements of the market for materials are also continuously improved. Among them, the polymer material is also generally called a polymer material, is a material having a polymer compound as a matrix, and generally comprises a polymer compound, an inorganic filler and an auxiliary agent. At present, high polymer materials are generally applied to the fields of buildings, the electrical and electronic industry, transportation, agriculture and the like.
The inorganic filler has important significance in the preparation of high polymer materials: on one hand, the method has the effect of reducing the cost, and on the other hand, the method has the effect of improving the mechanical properties such as hardness, strength and the like of the material. Among them, talc is a common filler in the field of polymer material processing due to its low price, and has wide applications in polypropylene, polyethylene, polycarbonate, ABS (Acrylonitrile Butadiene Styrene) plastics, rubber and paint. The talcum powder mainly contains magnesium silicate hydroxide (Mg)3Si4O10(OH)2) The inorganic compound has strong polarity on the surface, so that the inorganic compound is difficult to be uniformly mixed with a low-polarity or non-polar polymer matrix, effective bonding and combination are difficult to form between the filler and the interface of the resin matrix, the improvement of the material strength is not facilitated, and the dispersion of the filler in the resin matrix is also not facilitated.
In order to solve the problems, a silane coupling agent, a titanate coupling agent, an aluminate coupling agent and the like are commonly used for carrying out surface treatment on the talcum powder filler by adopting a dry method or a wet method process. However, the above technical solutions have the following disadvantages in practical use: the dry method is to carry out surface reaction on the atomized coupling agent and the filler or directly carry out mixed reaction on the coupling agent and the inorganic filler, but because the dosage of the coupling agent is very small, the surface treatment of the filler is difficult to be uniform in the dry treatment process, the uniform effect of the surface treatment cannot be ensured, and the oil absorption of the product is too high. In addition, the wet process is also called solution process, and is to stir talc powder and aqueous solution of coupling agent for reaction and treatment, but most of the coupling agents undergo hydrolysis reaction in the aqueous solution to polymerize, which not only affects the treatment effect of the filler, but also shortens the service life of the aqueous solution of the coupling agent, thereby generating a large amount of wastewater to be treated and increasing the production cost.
Disclosure of Invention
The embodiment of the invention aims to provide a surface organic modified talcum powder filler, which solves the problem that the surface treatment uniformity effect cannot be ensured while the production cost is reduced in the conventional talcum powder filler surface treatment process proposed in the background art.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the surface organic modified talcum powder filler comprises the following raw materials: talcum powder, surface treating agent and proper amount of solvent; wherein the surface treatment agent is an aqueous solution of an alkyl silicate.
As a further scheme of the embodiment of the invention: the surface organic modified talcum powder filler comprises the following components in parts by weight:
10-60 parts of talcum powder
5-70 parts of surface treating agent
50-350 parts of deionized water
Wherein the surface treating agent is an alkyl silicate aqueous solution.
As a further scheme of the embodiment of the invention: the surface treating agent is alkyl silicate aqueous solution with the mass percentage concentration of 20-40%.
As a further scheme of the embodiment of the invention: the surface treating agent is a sodium methyl silicate aqueous solution with the mass percentage concentration of 30 percent.
Another object of an embodiment of the present invention is to provide a method for preparing a surface-organically-modified talc filler, including the following steps:
1) weighing the surface treating agent and the solvent, and uniformly mixing to obtain a mixture (namely surface treating agent diluent);
2) weighing talcum powder, adding the talcum powder into the mixture, and stirring to obtain a stirred material (namely a reaction mixed solution);
3) and carrying out suction filtration on the stirred material, carrying out filtration drying, placing a filter cake in an environment of 60-125 ℃ for heat preservation for 0.5-4 hours, and grinding into powder to obtain the surface organic modified talcum powder filler.
The embodiment of the invention also aims to provide an application of the surface organic modified talcum powder filler in preparation of high polymer materials.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the surface organic modified talcum powder filler provided by the embodiment of the invention is prepared by adopting a wet process and treating talcum powder by taking alkyl silicate aqueous solution as a surface treating agent, so that the phenomenon of insufficient surface treatment uniformity effect in dry treatment is avoided, and meanwhile, a large amount of waste water is not generated and the production cost is low; compared with the traditional process, the embodiment of the invention has the following effective effects: (1) the traditional silane coupling agent belongs to organic matters, volatile organic matters such as methanol and the like can be generated during hydrolysis, the stability of the aqueous solution is poor, the aqueous solution cannot be used for a long time, and the formed wastewater treatment difficulty is higher. According to the invention, a wet process is adopted to organically modify the talcum powder, the adopted alkyl silicate aqueous solution has high storage stability, can be used for a long time, does not generate organic volatile matters in the treatment process, and has excellent environmental protection performance; (2) the price of the alkyl silicate adopted by the invention is far lower than that of the traditional coupling agent, and the production cost can be effectively reduced. (3) Compared with the traditional coupling agent treatment process, the talcum powder surface treatment process adopted by the embodiment of the invention has the advantages of simple and convenient and quick process operation, can be used for preparing other types of surface organic modified inorganic fillers, and has wide market prospect.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the embodiments of the present invention, but are not intended to limit the embodiments of the present invention in any way. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the embodiments of the present invention. These are all within the scope of the embodiments of the present invention.
The embodiment of the invention provides a surface organic modified talcum powder filler, which comprises the following raw materials: talcum powder, surface treating agent and proper amount of solvent; wherein the surface treatment agent is an aqueous solution of an alkyl silicate. The surface organic modified talcum powder filler provided by the embodiment of the invention has the characteristics of excellent environmental protection performance, low production cost and simple and convenient process operation. Because the coupling agent and the inorganic filler are not mixed and reacted by a dry method, but are treated by a wet method process and alkyl silicate aqueous solution as a surface treating agent, the phenomenon of insufficient surface treatment uniformity effect in the dry method treatment is avoided, simultaneously, a large amount of waste water is not generated, the production cost is low, and the problem that the surface treatment uniformity effect cannot be ensured while the production cost is reduced in the existing talcum powder filler surface treatment process is solved.
As another preferred embodiment of the present invention, the surface-organized modified talc powder filler comprises the following raw materials in parts by weight: 1-70 parts of talcum powder, 1-80 parts of surface treating agent and 0-500 parts of solvent.
As another preferred embodiment of the present invention, the surface-organized modified talc powder filler comprises the following raw materials in parts by weight: 10-60 parts of talcum powder, 5-70 parts of surface treating agent and 50-350 parts of solvent.
As another preferred embodiment of the present invention, the solvent is selected from deionized water, mineral water, distilled water, and soft water, which is not limited herein and may be selected as needed.
Preferably, the solvent is selected from deionized water. At the moment, the surface organic modified talcum powder filler is composed of the following components in parts by weight:
10-60 parts of talcum powder
5-70 parts of surface treating agent
50-350 parts of deionized water
Wherein the surface treating agent is an alkyl silicate aqueous solution.
As another preferable embodiment of the present invention, the surface treatment agent is an alkyl silicate aqueous solution having a mass percentage concentration of 20 to 40%.
As another preferred embodiment of the present invention, the alkyl silicate structure in the aqueous solution of alkyl silicate is represented by the following formula:
wherein, R is alkyl (specifically alkyl chains with different lengths), and M is univalent metal ions.
As another preferred example of the embodiment of the present invention, the monovalent metal ion is any one of a sodium ion and a potassium ion.
Preferably, the monovalent metal ion is a sodium ion.
As another preferred example of the present invention, the alkyl group is any one or more of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl.
Preferably, the alkyl group is methyl.
Further preferably, the surface treatment agent is a sodium methyl silicate aqueous solution with a mass percentage concentration of 30%.
The embodiment of the invention also provides a preparation method of the surface organic modified talcum powder filler, which comprises the following steps:
1) weighing the surface treating agent and the solvent according to the proportion, and uniformly mixing to obtain a mixture (namely surface treating agent diluent);
2) weighing talcum powder (in proportion) and adding the talcum powder into the mixture to be stirred to obtain a stirred material (namely reaction mixed liquid);
3) carrying out suction filtration on the stirred material so as to separate the talcum powder from the surface treating agent diluent; and (3) after filtration, placing the filter cake in an environment of 60-125 ℃ for heat preservation for 0.5-4 hours, and grinding into powder to obtain the surface organic modified talcum powder filler.
As another preferred embodiment of the invention, in the preparation method of the surface organic modified talcum powder filler, the heat preservation is carried out by drying according to the conditions of heat preservation at 60 ℃ for 0.5 hour, heat preservation at 110 ℃ for 1-3 hours and heat preservation at 125 ℃ for 2-4 hours in sequence.
As another preferred embodiment of the present invention, the solvent is deionized water. In this case, preferably, the method for preparing the surface-organized modified talc powder filler comprises the following steps:
1) mixing deionized water and alkyl silicate water solution, and stirring uniformly to obtain surface treating agent diluent;
2) adding talcum powder into the surface treating agent diluent prepared in the step 1) at room temperature, and stirring for 0.5-2 hours to obtain a stirred material;
3) carrying out suction filtration on the stirred material obtained in the step 2) to separate the talcum powder from the diluent of the surface treating agent; after being dried by filtration, the filter cake is directly put into an oven to be dried according to the conditions of heat preservation for 0.5 hour at 60 ℃, 1 to 3 hours at 110 ℃ and 2 to 4 hours at 125 ℃;
4) and (3) grinding the dried product in the step 3) into fine powder in an agate mortar to obtain the surface organically modified talcum powder, namely the surface organically modified talcum powder filler.
Preferably, the alkyl silicate aqueous solution is an alkyl silicate solution having a concentration of 30% by mass, more preferably an alkyl sodium silicate solution, and still more preferably a methyl sodium silicate solution. After the talcum powder is mixed and contacted with the sodium alkyl silicate solution, hydroxyl on the surface of talcum powder particles and hydroxyl in alkyl silicate anions are subjected to condensation reaction to introduce alkyl to the surfaces of the talcum powder particles, alkyl silicate on the surfaces of the talcum powder particles generates alkyl silanol under the action of water and carbon dioxide (the carbon dioxide can be air or carbon dioxide contained in water, or carbon dioxide additionally blown in the stirring and mixing process according to needs, or carbon dioxide introduced in the heat preservation process), and an organic silicon film can be formed on the surfaces of the talcum powder particles by the condensation reaction between the alkyl silanol and the condensation reaction with the hydroxyl on the surfaces of the talcum powder particles, so that the organic modification of the surfaces of the talcum powder particles is realized. The organic modification can reduce the oil absorption of the talcum powder, thereby being beneficial to forming a stronger interface layer with a high polymer matrix.
The embodiment of the invention also provides the surface organic modified talcum powder filler prepared by the preparation method of the surface organic modified talcum powder filler.
The embodiment of the invention also provides an application of the surface organic modified talcum powder filler in preparation of high polymer materials. In particular to the preparation of products such as rubber, fiber, plastic, polymer adhesive, polymer coating, polymer-based composite material and the like.
As another preferred embodiment of the present invention, the polymer material is any one of a polypropylene composite material, a polyethylene composite material, a polycarbonate composite material, ABS plastic, rubber, or paint.
The technical effects of the surface-organized modified talc filler of the present invention will be further described below by referring to specific examples.
Example 1
The surface organic modified talcum powder filler comprises the following raw materials: 30 g of talcum powder, 10 g of sodium methyl silicate aqueous solution with the mass percentage concentration of 30 percent and 290 g of deionized water.
In this embodiment, the method for preparing the surface-organized modified talc powder filler specifically includes the following steps:
(1) mixing and stirring deionized water and sodium methyl silicate aqueous solution uniformly to obtain surface treating agent diluent;
(2) adding talcum powder into the surface treating agent diluent prepared in the step (1) at room temperature, and stirring for 0.75 hour to complete the reaction to obtain a reaction mixed solution;
(3) carrying out suction filtration on the reaction mixed liquid in the step (2) to separate the talcum powder from the surface treating agent diluent; after being dried by filtration, the filter cake is directly put into an oven to be dried according to the conditions of heat preservation for 0.5 hour at 60 ℃, 2 hours at 110 ℃ and 3 hours at 125 ℃;
(4) and (4) grinding the dried product obtained in the step (3) into fine powder in an agate mortar to obtain the surface organic modified talcum powder filler.
Example 2
Compared to example 1, except that the raw material composition was: the procedure of example 1 was repeated except that 50 g of talc, 20 g of a 30% sodium methyl silicate aqueous solution, 280 g of deionized water, and a diluent of a surface treatment agent were mixed with talc and reacted for 1 hour with stirring.
Example 3
Compared to example 1, except that the raw material composition was: the procedure of example 1 was repeated except that 15 g of talc, 60 g of a 30% aqueous solution of sodium methylsilicate, 240 g of deionized water, and a diluent of a surface treatment agent were mixed with talc and reacted for 1.5 hours under stirring.
Example 4
The unmodified talc starting material from example 1 was used as a reference for comparison with the other examples.
Specifically, the formulations of the above examples are shown in table 1:
table 1 composition of the formulations
| Group of | Talcum powder | 30% aqueous sodium methylsilicate solution | Deionized water |
| Example 1 | 30 | 10 | 290 |
| Example 2 | 50 | 20 | 280 |
| Example 3 | 15 | 60 | 240 |
| Reference sample | 30 | 0 | 0 |
As can be seen from the data in Table 1, the surface-organized modified talcum powder filler provided by the embodiments 1-3 of the invention is treated by a wet process and alkyl silicate aqueous solution as a surface treating agent, and has the advantages of simple and rapid process operation compared with the traditional coupling agent treatment process.
Example 5
Compared with the example 1, the method is the same as the example 1 except that the mass percent concentration of the sodium methylsilicate aqueous solution is 20 percent.
Example 6
Compared with the example 1, the method is the same as the example 1 except that the mass percent concentration of the sodium methylsilicate aqueous solution is 25 percent.
Example 7
Compared with the example 1, the method is the same as the example 1 except that the mass percent concentration of the sodium methylsilicate aqueous solution is 35 percent.
Performance detection
Performance testing was performed on the surface organically modified talc fillers prepared in examples 1 to 3 and the unmodified talc of example 4. Specifically, according to GB/T5211.15-2014 Universal test method part 15: measurement of oil absorption the oil absorption was measured and the results are shown in table 2, which shows that the talc surface treatment technique of the present invention can reduce the oil absorption of talc and thus prove that the surface organic modification of talc is achieved.
TABLE 2 shear impact Strength test results Table
As can be seen from the data in Table 2, the surface-organically modified talc filler prepared in example 1 of the present invention has a lower oil absorption than unmodified talc, indicating that the surface of the talc has been covered with organic groups; is favorable for forming effective bonding and combination with the basic interface of the macromolecular compound, improves the material strength and is also favorable for the dispersion of the filler in the macromolecular compound matrix material.
The oil absorption has important guiding significance for selecting the filler, and the oil absorption directly influences the processing performance of the high polymer material, and the high oil absorption of the filler can reduce the fluidity of the high polymer material and deteriorate the molding process performance. The talcum powder surface treatment technology of treating talcum powder by adopting a wet process and taking alkyl silicate aqueous solution as a surface treatment agent can reduce the oil absorption of the talcum powder, realize the surface organic modification of the talcum powder, and is favorable for forming effective bonding and combination with a high molecular compound matrix material interface.
To further illustrate the technical advantages of the surface organically modified talc filler of example 1 of the present invention, the storage stability of the aqueous silane coupling agent solution used in the prior art and the aqueous sodium methyl silicate solution of the present invention example are compared as follows: the storage period of the silane coupling agent treatment solution is about 1 week, while the sodium methyl silicate aqueous solution of the embodiment of the invention can be stored for about 1 month, so that the storage period is greatly prolonged; in addition, the silane coupling agent treatment solution can also cause the problem of wastewater treatment, the embodiment of the invention adopts the sodium methylsilicate aqueous solution, so that the environment is protected, the problem of wastewater treatment is reduced, and the cost is greatly reduced, compared with a talcum powder filler product organically modified by adopting the silane coupling agent, the cost of the surface organically modified talcum powder filler prepared by the embodiment of the invention is reduced by about 90%. According to the invention, the talc powder is organically modified by adopting a wet process, the adopted alkyl silicate aqueous solution has high storage stability, can be used for a long time, does not generate organic volatile matters in the treatment process, and has excellent environmental protection performance.
According to the above results, the beneficial effects of the embodiment of the invention are as follows, the surface organic modified talcum powder filler provided by the embodiment of the invention is prepared by adopting a wet process and treating talcum powder by taking an alkyl silicate aqueous solution as a surface treatment agent, compared with the traditional process, the phenomenon of insufficient surface treatment uniformity effect in dry treatment is avoided, meanwhile, a large amount of waste water is not generated, the production cost is low, the problem that the surface treatment uniformity effect cannot be ensured while the production cost is reduced in the existing talcum powder filler surface treatment process is solved, and the market prospect is wide.
While the preferred embodiments of the present invention have been described in detail, the embodiments of the present invention are not limited to the above embodiments, and various changes can be made without departing from the spirit of the embodiments of the present invention within the knowledge of those skilled in the art. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the embodiments of the present invention are still within the scope of the embodiments of the present invention as thus claimed.
Claims (10)
1. The surface organic modified talcum powder filler is characterized by comprising the following raw materials: talcum powder, surface treating agent and solvent; wherein the surface treatment agent is an aqueous solution of an alkyl silicate.
2. The surface-organically-modified talc filler according to claim 1, wherein said surface-organically-modified talc filler comprises the following raw materials in parts by weight: 1-70 parts of talcum powder, 1-80 parts of surface treating agent and 0-500 parts of solvent.
3. The surface-organically-modified talc filler according to claim 2, characterized in that said surface-organically-modified talc filler comprises the following raw materials in parts by weight: 10-60 parts of talcum powder, 5-70 parts of surface treating agent and 50-350 parts of solvent.
4. The surface-organically modified talc filler according to claim 1, wherein said aqueous solution of alkyl silicate is 20 to 40% by mass.
5. The surface-organically modified talc filler according to claim 1, wherein said alkyl silicate is a monovalent metal ion silicate, and said monovalent metal ion is any one of sodium ion and potassium ion.
6. The surface-organically modified talc filler according to claim 1, wherein said surface treatment agent is an aqueous solution of sodium methyl silicate having a concentration of 30% by mass.
7. A process for the preparation of an organically surface-modified talc filler according to any one of claims 1 to 6, characterized by the steps of:
1) weighing a surface treating agent and a solvent, and uniformly mixing to obtain a mixture;
2) weighing talcum powder, adding the talcum powder into the mixture, and stirring to obtain a stirred material;
3) and carrying out suction filtration on the stirred material, carrying out filtration drying, then placing a filter cake in an environment of 60-125 ℃, preserving heat, and grinding to obtain the surface organic modified talcum powder filler.
8. The method for preparing surface-organized modified talcum powder filler according to claim 7, wherein the heat preservation is performed by drying according to the conditions of heat preservation at 60 ℃ for 0.5 hour, heat preservation at 110 ℃ for 1-3 hours and heat preservation at 125 ℃ for 2-4 hours in sequence.
9. Use of a surface organically modified talc as defined in claim 1, 2, 3, 4, 5 or 6 for the preparation of a polymeric material.
10. The use of the surface-organically modified talc filler according to claim 9 for the preparation of a polymer material, wherein said polymer material is any one of polypropylene composite, polyethylene composite, polycarbonate composite, ABS plastic, rubber or paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111521710.5A CN114369290A (en) | 2021-12-13 | 2021-12-13 | Surface organic modified talcum powder filler and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111521710.5A CN114369290A (en) | 2021-12-13 | 2021-12-13 | Surface organic modified talcum powder filler and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114369290A true CN114369290A (en) | 2022-04-19 |
Family
ID=81139682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111521710.5A Pending CN114369290A (en) | 2021-12-13 | 2021-12-13 | Surface organic modified talcum powder filler and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114369290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386247A (en) * | 2022-08-26 | 2022-11-25 | 马鞍山顾地塑胶有限公司 | In-situ surface coating modified calcium carbonate filler and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1233070A (en) * | 1969-03-13 | 1971-09-16 | Laporte Industries Limited | Improvements in and relating tothe manufacture of oxides |
| JPH0848910A (en) * | 1994-08-03 | 1996-02-20 | Asahi Glass Co Ltd | Surface-treated metal oxide and its production |
-
2021
- 2021-12-13 CN CN202111521710.5A patent/CN114369290A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1233070A (en) * | 1969-03-13 | 1971-09-16 | Laporte Industries Limited | Improvements in and relating tothe manufacture of oxides |
| JPH0848910A (en) * | 1994-08-03 | 1996-02-20 | Asahi Glass Co Ltd | Surface-treated metal oxide and its production |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386247A (en) * | 2022-08-26 | 2022-11-25 | 马鞍山顾地塑胶有限公司 | In-situ surface coating modified calcium carbonate filler and preparation method and application thereof |
| CN115386247B (en) * | 2022-08-26 | 2023-06-27 | 马鞍山顾地塑胶有限公司 | In-situ surface-coated modified calcium carbonate filler and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100564264B1 (en) | Polyalkoxysiloxane compounds, preparation process thereof and coating compositions the same | |
| DE19638998B4 (en) | Process for the preparation of a solid silica derivative | |
| CN110845871B (en) | Heavy calcium carbonate modifier and modification method thereof | |
| JP2007051236A (en) | Silicone emulsion composition and method for treating wood | |
| WO2022127116A1 (en) | Preparation method for and application of weather-resistant, wear-resistant and hydrophobic aid | |
| BR0302747B1 (en) | aqueous dispersion of silica, process for the preparation of aqueous dispersion of silica, and method for the treatment of tanned leather. | |
| CN108359307A (en) | High dispersive graphene heat conduction water paint and preparation method thereof | |
| CN107855118A (en) | A kind of environment-friendly dye sewage-treating agent and preparation method thereof | |
| CN114369290A (en) | Surface organic modified talcum powder filler and preparation method and application thereof | |
| CN111040472B (en) | Modified nano silicon dioxide and modification method thereof, anticorrosive paint and coating | |
| CN101613539B (en) | Compound modification method of microcrystalline white mica with boric acid ester and aminosilane | |
| CN1178997C (en) | Wear resistnat paint composition and method for producing paint | |
| CN115449276A (en) | Preparation process of water-based paint | |
| CN110628253A (en) | Environment-friendly super-hydrophobic antifouling paint and preparation method thereof | |
| CN1216566A (en) | Process for preparing surface-treated carbon black and rubber composition | |
| CN108559376B (en) | High-hardness low-contact-angle emulsion coating and application thereof | |
| Xiao et al. | Mechanism on surface hydrophobically modification of fibrous wollastonite and its reinforcement of natural rubber | |
| JPH0491168A (en) | Treated silica | |
| CN111876037A (en) | Water-based acrylic acid white paint and preparation method thereof | |
| CN112724709A (en) | Special heavy calcium carbonate for silicone sealant and preparation method thereof | |
| CN115386247B (en) | In-situ surface-coated modified calcium carbonate filler and preparation method and application thereof | |
| JP4646101B2 (en) | Method for producing rubber composition | |
| KR20010033581A (en) | Low voc coating composition | |
| WO2023017527A1 (en) | Additive and a process for its preparation thereof | |
| KR101163115B1 (en) | Method for manufacturing silane-MMT-reinforced high performance nanocomposites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220419 |
|
| RJ01 | Rejection of invention patent application after publication |