CN111286268A - Toughening and hardening coating composition, preparation method and plastic treatment method - Google Patents
Toughening and hardening coating composition, preparation method and plastic treatment method Download PDFInfo
- Publication number
- CN111286268A CN111286268A CN202010221178.4A CN202010221178A CN111286268A CN 111286268 A CN111286268 A CN 111286268A CN 202010221178 A CN202010221178 A CN 202010221178A CN 111286268 A CN111286268 A CN 111286268A
- Authority
- CN
- China
- Prior art keywords
- titanate
- coating composition
- plastic
- toughened
- hydrolysate
- 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
Classifications
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08J2323/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/08—Copolymers of styrene
- C08J2325/12—Copolymers of styrene with unsaturated nitriles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/08—Copolymers of styrene
- C08J2325/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
The invention belongs to the technical field of coatings, and particularly relates to a toughening and hardening coating composition, a preparation method and a plastic treatment method, wherein the composition comprises, by weight, 30-50 parts of alkoxysilane hydrolysate, 10-20 parts of titanate hydrolysate, 7-12 parts of alkoxy modified silicone oil, 0.3-1.0 part of a curing agent, 0.1-0.4 part of a curing accelerator and 20-50 parts of absolute ethyl alcohol. After being degreased, cleaned and dried, the plastic to be treated is immersed in the wear-resistant hardened coating composition, lifted, aired and heated, so that a coating with higher hardness, better toughness and good adhesive force can be obtained on the surface of the plastic, and the purpose of protecting the surface of the plastic is achieved.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a toughening and hardening coating composition, a preparation method and a plastic treatment method.
Background
Optical plastic refers to plastic used as an optical medium material, and is mainly used in optical instruments with large batches for manufacturing optical substrates, lenses, contact lenses and the like. Polycarbonate is an important optical plastic, is called polycarbonate for short PC, is a thermoplastic resin with a molecular main chain containing a carbonate bond structure, has the advantages of high transparency, good impact resistance, heat resistance, cold resistance, stable size, high light transmittance and the like, and becomes an important optical material. However, PC materials have a low surface hardness (pencil hardness, 1kg force, 6B), poor abrasion resistance, and are prone to abrasion. Therefore, in the field of optical applications, it is necessary to apply a surface hardening treatment to increase the hardness and abrasion resistance, and the most common method is to apply an abrasion resistant hard coating layer, most of which is an abrasion resistant hard coating layer of a silicone system.
Publication No. CN1752165A discloses an organosilicon transparent wear-resistant hardening coating and a preparation method thereof, wherein a mixture consisting of tetraalkoxysilane, trialkoxysilane and dialkoxysilane is acidified and hydrolyzed, then a coupling agent is added, and a curing agent and a curing accelerator are added after curing, so that a transparent coating with the hardness of more than 3H can be obtained on the surface of PC.
Publication No. CN1834180A discloses an organosilicon abrasion-resistant transparent coating for optical plastic surface enhancement, which comprises a volume ratio of 83.3-86.7%: 13.3 to 16.7 percent of A, B, wherein the component A contains 25 to 31 percent of organic silicon monomer, 0.2 to 1 percent of flatting agent and 68 to 74.6 percent of solvent by volume ratio; the component B comprises, by weight, 6.2-9.9% of concentrated hydrochloric acid, 89.7-93.1% of water and 0.4-1.1% of a curing agent. The organic silicon monomer consists of ethyl orthosilicate, methyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.
However, the hardness and adhesion of the coating in the prior art methods can meet the requirements, but toughness is often problematic.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a toughening and hardening coating composition.
It is another object of the present invention to provide a method for preparing a toughened, hardened coating composition.
The invention also aims to provide a plastic treatment method which is simple, convenient and quick, and the treated plastic surface obtains a coating with high hardness, good adhesion, transparency and good toughness.
The invention adopts the following technical scheme:
the toughening and hardening coating composition consists of alkoxy silane hydrolysate 30-50 weight portions, titanate hydrolysate 10-20 weight portions, alkoxy modified silicone oil 7-12 weight portions, curing agent 0.3-1.0 weight portion, curing promoter 0.1-0.4 weight portion and anhydrous alcohol 20-50 weight portions.
Preferably, the alkoxysilane hydrolysate is hydrolyzed from tetraalkoxysilane and trialkoxysilane or from tetraalkoxysilane, trialkoxysilane and dialkoxysilane in the presence of an acidic catalyst in water and an organic solvent. The film layer obtained by hydrolyzing the tetraalkoxysilane and the trialkoxysilane under the acidic condition after drying the hydrolysate has higher hardness but lower toughness; the dried film layer of the hydrolyzate obtained by hydrolyzing tetraalkoxysilane, trialkoxysilane and dialkoxysilane under acidic conditions will have a slightly lower hardness, but a somewhat better toughness. The tetraalkoxysilane may be selected from methyl orthosilicate or ethyl orthosilicate; the chemical general formula of the trialkoxysilane is R4Si(OM1)3Wherein R is4Can be independently selected from one of methyl, vinyl, n-propyl, 3,3, 3-trifluoropropyl, phenyl, n-octyl, n-hexyl, isobutyl, isooctyl, 3- (2, 3-epoxypropyl) propyl, 2- (3, 4-epoxycyclohexyl) ethyl, 3- (methacryloyloxy) propyl and 3-mercaptopropyl, M1May be independently selected from one of methyl, ethyl, isopropyl and acetyl; the chemical formula of the dialkoxysilane is R5MeSi(OM2)2Wherein R is5Can be independently selected from one of methyl, vinyl, n-propyl, 3,3, 3-trifluoropropyl, phenyl, n-octyl, n-hexyl, isobutyl, isooctyl, 3- (2, 3-epoxypropyl) propyl, 2- (3, 4-epoxycyclohexyl) ethyl, 3- (methacryloyloxy) propyl and 3-mercaptopropyl, M2Can be independently selected from one of methyl, ethyl, isopropyl and acetyl, and Me is methyl.
Preferably, the titanate is selected from at least one of methyl titanate, tetraethyl titanate, n-propyl titanate, tetraisopropyl titanate, tetra-n-butyl titanate, tetra-t-butyl titanate, diisopropyl di (acetylacetonate) titanate, diisopropyl di (triethanolamine) titanate, isopropyl triisostearate, isopropyltrioleate acyloxy titanate, isopropyltri (dioctylphosphonoyl) titanate and isopropyldioleate acyloxy (dioctylphosphonoyl) titanate.
Preferably, the chemical general formula of the alkoxy modified silicone oil is shown as a formula (1),
wherein R is1Independently selected from one of methyl, phenyl, ethyl, propyl, isobutyl, 3,3, 3-trifluoropropyl, 2- (3, 4-epoxycyclohexyl) ethyl and gamma- (2, 3-epoxypropoxy) propyl, R2Independently selected from-CH2CH2-,-CH2CH2SCH2-、-CH2CH2SCH2CH2-and-CH2CH2SCH2CH2CH2One of (A), (B), (C) and (C), R3At least one of methyl, ethyl, isopropyl and acetyl, a is more than or equal to 0 and less than or equal to 20, b is more than or equal to 50 and less than or equal to 200, and c is more than or equal to 5 and less than or equal to 25.
When R is2is-CH2CH2When the silane coupling agent is used, the silane coupling agent is obtained by performing hydrosilylation reaction on vinyl silicone oil and a corresponding hydrogen-containing silane coupling agent; when R is2is-CH2CH2SCH2-、-CH2CH2SCH2CH2-or-CH2CH2SCH2CH2CH2And when the coupling agent is-prepared, vinyl silicone oil and a corresponding mercaptosilane coupling agent are subjected to a mercapto-alkene click chemical reaction.
Preferably, the curing agent is at least one selected from the group consisting of tetramethylammonium hydroxide, tetrabutylammonium hydroxide, tetramethylammonium chloride, tetrabutylammonium chloride, tetramethylammonium acetate and tetrabutylammonium acetate.
Preferably, the curing accelerator is selected from at least one of acrylamide, caprolactam, N-dimethylformamide, and boron trifluoride.
According to the preparation method of the toughening and hardening coating composition of any embodiment, the raw materials are accurately weighed according to the formula, and the alkoxy silane hydrolysate, the titanate hydrolysate, the alkoxy modified silicone oil and the absolute ethyl alcohol are uniformly mixed and filtered to obtain a premix; and adding the curing agent and the curing accelerator into the premix before use, and uniformly stirring and mixing for later use.
A plastic treating method includes such steps as immersing the plastic to be treated in the composition, lifting, drying in air, and heating for drying.
Preferably, the plastic is an optical plastic selected from Polycarbonate (PC), Polystyrene (PS), styrene acrylonitrile copolymer (SAN), styrene methyl methacrylate copolymer (PS-PMMA), Polyamide (PA), poly 4-methyl-1-pentene or organic glass (PMMA).
The invention has the beneficial effects that:
(1) the toughening hardening coating composition has wide raw material sources and lower cost.
(2) The equipment used in the preparation method of the toughening and hardening coating composition is simpler, the whole process flow is basically consistent with that in the prior art, and the preparation method can be directly replaced into the prior art.
(3) The obtained coating has the characteristics of high hardness, good toughness, good adhesive force and transparency, the hardness (1 Kg force) reaches more than H, and the coating has the advantages of good toughness, high adhesive force, good water boiling resistance and high light transmittance.
Detailed Description
The technical solution of the present invention is further illustrated and described by the following detailed description.
Unless otherwise specified, the parts described in the embodiments in the following embodiments are all parts by weight.
The toughening hardening coating composition comprises the following raw material components:
(A) the alkoxy-modified silicone oil is selected from the following,
(A-1)R1is methyl, R2is-CH2CH2SCH2CH2CH2-,a=10.7,b=95.3,c=10.1;
(A-2)R1Is 2- (3, 4-epoxycyclohexyl) ethyl, R2is-CH2CH2-,a=12.6,b=105.5,c=16.3;
(A-3)R1Is gamma- (2, 3-epoxypropoxy) propyl, R2is-CH2CH2-,a=15.3,b=74.7,c=24.5;
(A-4)R1Is phenyl, R2is-CH2CH2SCH2CH2CH2-,a=5.8,b=133.8,c=19.7;
(B) The alkoxysilane hydrolyzate is selected from the group consisting of,
(B-1) hydrolysate of ethyl orthosilicate and 3- (2, 3-epoxypropyl) propyltrimethoxysilane in a molar ratio of 1: 3;
(B-2) hydrolysates of ethyl orthosilicate, methyltriethoxysilane and 3- (2, 3-epoxypropyl) propylmethyldiethoxysilane in a molar ratio of 1:1: 1.5;
(B-3) hydrolysates of ethyl orthosilicate, isobutyltriethoxysilane, and methylphenyldiethoxysilane in a molar ratio of 1:2: 2;
(C) the titanate ester hydrolysate is selected from the group consisting of,
(C-1) a hydrolysate of methyl titanate;
(C-2) a hydrolysate of tetraethyl titanate;
(D) the curing agent is selected from the group consisting of,
(D-1) tetramethylammonium hydroxide;
(D-2) tetramethylammonium acetate;
(E) the curing accelerator is selected from the group consisting of,
(E-1) boron trifluoride;
(E-2) caprolactam;
the formulations of the specific examples are shown in table 1.
TABLE 1
The preparation method of each embodiment and comparative example of the toughened and hardened coating composition comprises the following steps: accurately weighing each raw material component according to the formula of table 1, uniformly mixing the alkoxy silane hydrolysate, the titanate hydrolysate, the alkoxy modified silicone oil and the absolute ethyl alcohol, and filtering to obtain a premix; adding a curing agent and a curing accelerator into the premix before use, and uniformly stirring and mixing to obtain the toughening and hardening coating composition.
The plastic treatment method comprises the steps of soaking the to-be-treated plastic which is cleaned and dried after oil removal into the toughening and hardening coating composition obtained in each embodiment and comparative example for 10-25 seconds, lifting, airing, and heating and drying at the temperature of 100-120 ℃ for 2-3 hours.
Performance testing
Viscosity: the toughened, hardened coating compositions of each example and comparative example were left to stand at 25 ℃ for 24 hours and then tested for viscosity at 25 ℃ using a rotational viscometer. The results are shown in Table 2.
Film thickness: tested according to GB 1767-1979. The results are shown in Table 2.
Hardness: pencil hardness was tested according to GB/T6739-2006, 1Kg force. The results are shown in Table 2.
Adhesion force: tested according to GB/T9286-1998. The best is grade 0 and the worst is grade 5. The results are shown in Table 2.
Light transmittance: the test was carried out according to GB/T2410-2008 using an ultraviolet-spectrophotometer at 800nm wavelength. The results are shown in Table 2.
Boiling resistance: and (3) placing the sample plate coated with the film layer in deionized water at 80 ℃, soaking for 1h, taking out, airing, and observing the change of the film layer. The results are shown in Table 2.
Toughness: impact resistance was tested according to GB/T1732-1993 at 50cm, 1 Kg. The results are shown in Table 2.
TABLE 2
From the results in table 2, it is clear that the hardness of the film layer obtained from the plastic surface treated with the toughening and hardening coating composition of the present invention is H or more, and the film layer has good adhesion, good boiling resistance, high light transmittance, and high toughness.
The foregoing has shown and described the fundamental principles, major features and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are merely preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and that equivalent changes and modifications made within the scope of the present invention and the specification should be covered thereby. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A toughened and hardened coating composition is characterized in that: the adhesive comprises, by weight, 30-50 parts of alkoxysilane hydrolysate, 10-20 parts of titanate hydrolysate, 7-12 parts of alkoxy modified silicone oil, 0.3-1.0 part of curing agent, 0.1-0.4 part of curing accelerator and 20-50 parts of absolute ethyl alcohol.
2. The toughened, hardened coating composition of claim 1, wherein: the alkoxy silane hydrolysate is hydrolyzed by tetraalkoxysilane and trialkoxysilane or by tetraalkoxysilane, trialkoxysilane and dialkoxysilane in the presence of an acidic catalyst, water and an organic solvent.
3. The toughened, hardened coating composition of claim 1, wherein: the titanate is selected from at least one of methyl titanate, tetraethyl titanate, n-propyl titanate, tetraisopropyl titanate, tetra-n-butyl titanate, tetra-tert-butyl titanate, diisopropyl di (acetylacetonate) titanate, diisopropyl di (triethanolamine) titanate, isopropyl triisostearate, isopropyltrioleate acyloxy titanate, isopropyltri (dioctylphosphonoyl) titanate and isopropyldioleate acyloxy (dioctylphosphonoyl) titanate.
4. The toughened, hardened coating composition of claim 1, wherein: the chemical general formula of the alkoxy modified silicone oil is shown as a formula (1),
wherein R is1Independently selected from one of methyl, phenyl, ethyl, propyl, isobutyl, 3,3, 3-trifluoropropyl, 2- (3, 4-epoxycyclohexyl) ethyl and gamma- (2, 3-epoxypropoxy) propyl, R2Independently selected from-CH2CH2-,-CH2CH2SCH2-、-CH2CH2SCH2CH2-and-CH2CH2SCH2CH2CH2One of (A), (B), (C) and (C), R3At least one of methyl, ethyl, isopropyl and acetyl, a is more than or equal to 0 and less than or equal to 20, b is more than or equal to 50 and less than or equal to 200, and c is more than or equal to 5 and less than or equal to 25.
5. The toughened, hardened coating composition of claim 1, wherein: the curing agent is at least one selected from tetramethylammonium hydroxide, tetrabutylammonium hydroxide, tetramethylammonium chloride, tetrabutylammonium chloride, tetramethylammonium acetate and tetrabutylammonium acetate.
6. The toughened, hardened coating composition of claim 1, wherein: the curing accelerator is at least one selected from acrylamide, caprolactam, N-dimethylformamide and boron trifluoride.
7. A method for preparing the toughened and hardened coating composition as claimed in any one of claims 1 to 6, characterized in that: accurately weighing the raw materials according to a formula, uniformly mixing the alkoxysilane hydrolysate, the titanate hydrolysate, the alkoxy modified silicone oil and the absolute ethyl alcohol, and filtering to obtain a premix; and adding the curing agent and the curing accelerator into the premix before use, and uniformly stirring and mixing for later use.
8. A plastic processing method, characterized in that: degreasing, cleaning and drying the plastic to be treated, soaking the plastic in the toughening and hardening coating composition of any one of claims 1 to 6, lifting, airing, and heating and drying.
9. A plastic material processing method according to claim 8, characterized in that: the plastic is optical plastic and is selected from polycarbonate, polystyrene, styrene acrylonitrile copolymer, styrene methyl methacrylate copolymer, polyamide, poly-4-methyl-1-pentene or organic glass.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010221178.4A CN111286268A (en) | 2020-03-26 | 2020-03-26 | Toughening and hardening coating composition, preparation method and plastic treatment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010221178.4A CN111286268A (en) | 2020-03-26 | 2020-03-26 | Toughening and hardening coating composition, preparation method and plastic treatment method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111286268A true CN111286268A (en) | 2020-06-16 |
Family
ID=71027609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010221178.4A Pending CN111286268A (en) | 2020-03-26 | 2020-03-26 | Toughening and hardening coating composition, preparation method and plastic treatment method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111286268A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113292917A (en) * | 2021-05-21 | 2021-08-24 | 常州穗时新材料有限公司 | Organosilicon hardening liquid with photocatalyst function and preparation method thereof |
WO2022004513A1 (en) * | 2020-06-29 | 2022-01-06 | 日東化成株式会社 | Curing catalyst used for curing polymer, method for producing same, moisture-curable composition, and method for producing cured product |
CN115124921A (en) * | 2021-03-25 | 2022-09-30 | 杰格兰(厦门)新材料有限公司 | Wear-resistant anti-reflection coating material for optical plastic surface and preparation method thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1699488A (en) * | 2005-05-27 | 2005-11-23 | 吉林大学 | High strength organic / inorganic nano composite transparent film layer materials and method for preparing same |
CN1752165A (en) * | 2004-09-23 | 2006-03-29 | 张崇照 | Organic silicon transparent wear-proof hardened coating and mfg. process thereof |
WO2014105974A1 (en) * | 2012-12-28 | 2014-07-03 | Dow Corning Corporation | Curable organopolysiloxane composition for transducers and applications of such curable silicone composition for transducers |
WO2015022998A1 (en) * | 2013-08-14 | 2015-02-19 | Dow Corning Toray Co., Ltd. | Novel organic silicon compound, surface treatment agent containing same, resin composition containing same, and gel or cured product of same |
CN104910807A (en) * | 2015-06-05 | 2015-09-16 | 中国海洋石油总公司 | Organosilicon ingredient toughened methyl silicone resin and preparation method thereof |
CN108913016A (en) * | 2017-04-14 | 2018-11-30 | 刘小蕾 | A kind of organosilicon transparent wear rigidity-increasing dope and preparation method thereof |
CN109536014A (en) * | 2017-09-22 | 2019-03-29 | 北京大学深圳研究生院 | A kind of preparation method of superhard flexible coating |
CN110079093A (en) * | 2019-05-08 | 2019-08-02 | 广州慧谷化学有限公司 | A kind of wear-resisting organopolysiloxane composition and preparation method thereof |
-
2020
- 2020-03-26 CN CN202010221178.4A patent/CN111286268A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1752165A (en) * | 2004-09-23 | 2006-03-29 | 张崇照 | Organic silicon transparent wear-proof hardened coating and mfg. process thereof |
CN1699488A (en) * | 2005-05-27 | 2005-11-23 | 吉林大学 | High strength organic / inorganic nano composite transparent film layer materials and method for preparing same |
WO2014105974A1 (en) * | 2012-12-28 | 2014-07-03 | Dow Corning Corporation | Curable organopolysiloxane composition for transducers and applications of such curable silicone composition for transducers |
WO2015022998A1 (en) * | 2013-08-14 | 2015-02-19 | Dow Corning Toray Co., Ltd. | Novel organic silicon compound, surface treatment agent containing same, resin composition containing same, and gel or cured product of same |
CN104910807A (en) * | 2015-06-05 | 2015-09-16 | 中国海洋石油总公司 | Organosilicon ingredient toughened methyl silicone resin and preparation method thereof |
CN108913016A (en) * | 2017-04-14 | 2018-11-30 | 刘小蕾 | A kind of organosilicon transparent wear rigidity-increasing dope and preparation method thereof |
CN109536014A (en) * | 2017-09-22 | 2019-03-29 | 北京大学深圳研究生院 | A kind of preparation method of superhard flexible coating |
CN110079093A (en) * | 2019-05-08 | 2019-08-02 | 广州慧谷化学有限公司 | A kind of wear-resisting organopolysiloxane composition and preparation method thereof |
Non-Patent Citations (2)
Title |
---|
克列什科夫著,孙载坚译: "《硅有机化合物及其应用》", 30 November 1962, 中国工业出版社 * |
孙晶等: "《温/压敏漆制备及表征》", 30 November 2013, 国防工业出版社 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022004513A1 (en) * | 2020-06-29 | 2022-01-06 | 日東化成株式会社 | Curing catalyst used for curing polymer, method for producing same, moisture-curable composition, and method for producing cured product |
CN115485336A (en) * | 2020-06-29 | 2022-12-16 | 日东化成株式会社 | Curing catalyst for curing polymer, method for producing same, moisture-curable composition, and method for producing cured product |
CN115124921A (en) * | 2021-03-25 | 2022-09-30 | 杰格兰(厦门)新材料有限公司 | Wear-resistant anti-reflection coating material for optical plastic surface and preparation method thereof |
CN113292917A (en) * | 2021-05-21 | 2021-08-24 | 常州穗时新材料有限公司 | Organosilicon hardening liquid with photocatalyst function and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4753827A (en) | Abrasion-resistant organosiloxane/metal oxide coating | |
CN111286268A (en) | Toughening and hardening coating composition, preparation method and plastic treatment method | |
US4754012A (en) | Multi-component sol-gel protective coating composition | |
KR840000216B1 (en) | Silicone resin coating composition | |
KR101569533B1 (en) | Composition for silicone resin | |
JP5671549B2 (en) | Surface protective coating and method of using the same | |
KR101486812B1 (en) | Flexible thermal cure silicone hardcoats | |
CN100369995C (en) | Curing composition for organosilicon compound and silicone-based coating agent composition | |
JPH02150430A (en) | Flexible silicone coating for plastic base, and manufacture of thermoformable abrasion-resistant thermoplastic article | |
KR101264424B1 (en) | Coating fluid for forming film, and film thereof and film-forming process | |
CN104845523A (en) | Composition containing polyfunctional fluorine-containing silicone resin and preparation method thereof | |
JPH0710966B2 (en) | Primer composition and its use | |
CN111269657A (en) | Organic silicon wear-resistant hardening coating, preparation method and plastic treatment method | |
JPH036282A (en) | Primer composition | |
JP2530436B2 (en) | Coating composition | |
JPH093392A (en) | Resin composition for coating, resin-coated material, and preparation thereof | |
JP5893398B2 (en) | Silicon-containing treatment agent and water repellent film | |
JP4850893B2 (en) | Composition for silicone resin | |
JP4772937B2 (en) | Curable resin composition for top coating and coated product obtained by applying the same | |
US5905108A (en) | Optical silica-containing polysiloxane resin | |
KR101137938B1 (en) | Silicon-based abrasion coating compositions containing curing catalysts which have condensable functional groups | |
CN116574444B (en) | Hyperbranched polysiloxane ceramic coating and preparation method thereof | |
JP5170922B2 (en) | Hydrophilic hard coat film and method for producing the same | |
JP5480664B2 (en) | Hydrophilic coating material composition and outer housing member | |
ZHU et al. | Synthesis of SiO2/organosilicone hybrid coating via sol–gel method |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200616 |