CN114621592B - Organosilicon wall coating material and preparation method thereof - Google Patents
Organosilicon wall coating material and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J5/18—Manufacture of films or sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
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- 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
- C08J2383/00—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
- C08J2383/04—Polysiloxanes
- C08J2383/07—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08J2483/04—Polysiloxanes
- C08J2483/05—Polysiloxanes containing silicon bound to hydrogen
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- 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
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- 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
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- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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Abstract
The invention discloses an organic silicon wall coating material and a preparation method thereof, belonging to the field of material preparation. The organosilicon wall coating material has no risk of exceeding the standard of siloxane content, and has no non-green solvent introduced into the components, so that the organosilicon wall coating material is safe and non-toxic and has no odor when in use; the components have good compatibility with organic silicon, do not generate a blooming phenomenon, have rich and stable color, and simultaneously have multiple functions of mildew resistance, antibiosis, antifouling, flame retardation, heat insulation, sound insulation and the like. The invention also discloses a preparation method of the organic silicon wall coating material and application of the organic silicon wall coating material in indoor decoration.
Description
Technical Field
The invention relates to the field of material preparation, in particular to an organic silicon wall coating material and a preparation method thereof.
Background
In the decoration process of modern home, office places and other areas, wallpaper and wall cloth are often selected as the interior decoration materials of the wall body, and the texture of the wall body can be improved through rich color patterns and three-dimensional lines. There are two main categories of materials currently on the market for wallpaper wall coverings: (1) Artificial leather and synthetic leather wallpapers using PVC, PU, etc. as coatings and (2) wallpapers using non-woven fabrics, paper, etc. as surface printed patterns. The two kinds of wallpaper have the defects in application, the first kind of wallpaper inevitably uses non-green solvents such as plasticizer, DMF (dimethyl formamide), butanone and the like in the production process, the solvents can be slowly released to cause high indoor VOCs (volatile organic chemicals) and harm to human health, and along with the volatilization of the PVC material plasticizer and the hydrolysis of PU material, the coating material is gradually hardened and sticky, and even peeled from base cloth to influence the service cycle of the product; the second type of wallpaper does not contain harmful solvents, but is susceptible to damp and mildew, so that the overall appearance color of the wallpaper is changed. In addition, the two products usually need to be added with a flame retardant in order to achieve a better flame retardant effect, and although the flame retardant effect is improved, the contents of toxic and harmful gases such as HCl, benzene ring compounds, phosphorus and nitrogen compounds and the like released by the combustion of the two products are multiplied.
Compared with the two products, the organic silicon wallpaper is a new product appearing in recent years, and has the characteristics of flame retardance, pollution resistance, hydrolysis resistance and the like. For example, CN105619968A discloses an environment-friendly weather-resistant stain-resistant wallpaper, which is composed of a substrate layer and a silicone rubber layer, and has the characteristics of environmental friendliness and no harm to human body, and meanwhile, the wallpaper is good in weather resistance, water resistance, stain resistance and fire resistance, but compound components such as higher fatty alcohol, higher fatty acid and higher fatty acid ester are added in the formula of the wallpaper as plasticizers, and the compatibility of the components and silicone materials is poor, so that the components can migrate to the surface after the product is used for a long time, and the surface is frosted, and the appearance and use are seriously affected. CN110003516B discloses a silica gel wallpaper, which is composed of a silica gel layer and a photocatalytic nano-coating sprayed on the surface of the silica gel layer. The product is nontoxic and environment-friendly, and has the characteristics of high temperature resistance, high flame retardance and the like, but the silicon rubber formula of the product contains cerium oxide, ferric oxide, acetylene black, silicon carbide and other substances, and the photocatalytic nano coating formula of the product contains aluminum powder, copper powder and other metal powder and other substances. Because the chemicals have certain colors, the final product color is influenced, and the requirements of the wallpaper industry on the colors cannot be obviously met. In addition, although the two types of existing silicone wallpaper avoid the use of solvents and do not contain substances such as formaldehyde and the like which are concerned in the market, with the further limitation of the European Union REACH regulation on the content of siloxane cyclic bodies such as D3, D4 and the like in silicone rubber products, the products have the potential risk of exceeding the standard of siloxane content.
Disclosure of Invention
Based on the defects in the prior art, the invention aims to provide the organic silicon wall coating material which has no risk of exceeding the standard of siloxane content, is safe and nontoxic because no non-green solvent is introduced into the components, and has no odor when in use; the components have good compatibility with organic silicon, do not generate a blooming phenomenon, have rich and stable color, and simultaneously have multiple functions of mildew resistance, antibiosis, antifouling, flame retardation, heat insulation, sound insulation and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
an organic silicon wall cladding material comprises an organic rubber layer and a base material from top to bottom; the organic silicon rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil, 1-40 parts of methyl vinyl silicone resin, 1-50 parts of inorganic porous filler, 1-20 parts of hollow microspheres, 0.5-5 parts of long-chain alkane silane coupling agent, 1-15 parts of hydrogen-containing cross-linking agent, 0.1-5 parts of mildew-proof antibacterial agent, 0-15 parts of color paste, 0.1-10 parts of platinum catalyst and 0.01-3 parts of inhibitor; the methyl vinyl silicone resin is MQ type methyl vinyl silicone resin.
In the raw material components of the organic silicon wall coating material, the MQ type methyl vinyl silicone resin can effectively reinforce the whole material due to a special structural system, so that the compactness of the material is improved, and the antifouling effect of the material is improved; during the preparation of the product, the MQ type methyl vinyl silicone resin can uniformly form a compact porous structure with the inorganic porous filler under the catalysis of the platinum catalyst and the rate control action of the inhibitor, so that the material can effectively adsorb molecules such as siloxane or other micromolecule smells, the gas release property of the material is low, and meanwhile, the ceramic structure formed by sintering in the combustion process can further obstruct gases such as oxygen and the like, so that the flame retardant effect is achieved, and meanwhile, smoke can also be adsorbed, so that the purpose of suppressing smoke is achieved. Secondly, the long-chain alkane silane coupling agent in the raw material component reacts with hydroxyl in the MQ type methyl vinyl silicon resin, and the structure at the other end gradually migrates to the surface of the material due to different compatibility to form a hydrophobic layer, so that the antifouling effect of the material is further improved. The combination of the inorganic porous filler and the hollow microspheres can provide hollow structures of different levels for the material, effectively hinder the transmission of sound and heat in the use process of the material, endow the material with heat insulation and sound insulation effects, and the mildew-proof antibacterial agent in the raw material components can also effectively inhibit the activity of microorganisms such as mould and the like contacted with the material in use.
The raw material components of the organic silicon wall coating material have high compatibility with the main body vinyl silicone oil, and the blooming phenomenon cannot occur.
Preferably, the silicone rubber layer comprises the following raw material components in parts by weight:
100 portions of vinyl silicone oil, 5 to 30 portions of methyl vinyl silicone resin, 6 to 50 portions of inorganic porous filler, 5 to 20 portions of hollow microsphere, 1 to 4 portions of long-chain alkane silane coupling agent, 1 to 15 portions of hydrogen-containing cross-linking agent, 0.1 to 5 portions of mildew-proof antibacterial agent, 0 to 15 portions of color paste, 0.1 to 10 portions of platinum catalyst and 0.01 to 3 portions of inhibitor.
As the main components of the components which are subjected to crosslinking reaction, the compactness of the whole material is changed to a certain extent due to the proportioning change of the methyl vinyl silicone resin, the inorganic porous filler, the hollow microspheres and the long-chain alkane silane coupling agent, and the material prepared from the raw material components in the proportioning has the best comprehensive performance after screening.
Preferably, the vinyl silicone oil has a viscosity of 1000 to 500000mPas at 25 ℃.
More preferably, the vinyl silicone oil has a viscosity of 5000 to 100000mPas at 25 ℃.
The molecular chain of the vinyl silicone oil at least contains 2 vinyl groups directly bonded with silicon atoms, and the vinyl groups can be positioned at any position of the molecular chain (including two ends or lateral positions of the molecular chain) according to the selected content and position of the vinyl groups according to the actual situation. When the viscosity of the vinyl silicone oil is too low, the molecular chain is shorter, and the colloid obtained after crosslinking with other resin components is more brittle and has insufficient use stability; if the viscosity is too high, the performance of the resin during processing is reduced, and the efficiency is poor. The vinyl silicone oil with the viscosity is screened to have the best using effect.
In addition, the vinyl silicone oil can be used singly by adopting a variety with one viscosity, and can also be used by mixing varieties with different viscosities.
Preferably, the weight average molecular weight of the methyl vinyl silicone resin is 4000 to 20000.
More preferably, the vinyl content of the methyl vinyl silicone resin is 0.5-6% by weight.
More preferably, the vinyl content of the methyl vinyl silicone resin is 1-5% by weight.
When the molecular weight is too small, the methyl vinyl silicone resin is difficult to play a good reinforcing role, and the compactness of the material is reduced to some extent; when the molecular weight is too large, the compatibility with the components such as vinyl silicone oil is impaired, and the processability is insufficient as a whole. Meanwhile, the single molecular structure of the methyl vinyl silicone resin at least contains more than 2 vinyl groups to fully exert the reinforcing effect.
Preferably, the inorganic porous filler is at least one of activated carbon, diatomite and zeolite.
More preferably, the inorganic porous filler is a zeolite.
In the material, various inorganic porous fillers can generate composite crosslinking reaction with methyl vinyl silicone resin and can be sintered to generate a ceramic structure, but zeolite is most suitable from the viewpoint of easy material toning. The zeolite used in the material of the invention can be 3A, 4A, 5A or Z type zeolite, and the selected type can be used alone or in combination without special limitation.
Preferably, the pore size of the inorganic porous filler is 0.3 to 10nm.
When the inorganic porous filler participates in the formation of a compact porous structure, if the pore diameter of the inorganic porous filler is too small or too large, the adsorption efficiency of the inorganic porous filler on siloxane or gas molecules is influenced, and the effect of the inorganic porous filler within the pore diameter range is optimal through screening.
Preferably, the inorganic porous filler has a particle size of 1 to 20 μm.
The inorganic porous filler has too small particle size to affect gas adsorption, and has too large particle size to affect the color mixing effect of the product.
Preferably, the hollow microspheres are at least one of thermoplastic polymer hollow microspheres, hollow glass microspheres and hollow silicone resin microspheres.
Preferably, the particle size of the hollow microspheres is 10-200 μm.
The type of the hollow microspheres does not make special requirements, the material can have a composite multi-layer hole structure by adopting the hollow structure and the spherical filler which is different from the porous filler, so that the sound insulation and heat insulation effects are achieved, the size of the particle size also has certain influence on the sound insulation and heat insulation effect and the overall crosslinking performance of the material, and the effect of the hollow microspheres with the particle size is optimal.
Preferably, the long-chain alkane silane coupling agent is C 6～16 A silane coupling agent of an alkyl structure.
When the long-chain alkane silane coupling agent reacts with the methyl vinyl silicone resin, the short alkyl structure length of the long-chain alkane silane coupling agent can influence the effect of a hydrophobic layer formed after the reaction, and can influence the adhesion of the whole organic silicon rubber layer and a base material, and the long alkyl structure length can cause the poor compatibility of the long-chain alkane silane coupling agent and other raw material components, so that the long alkyl structure length C is used 6～16 The silane coupling agent with an alkyl structure has the best effect.
Preferably, the hydrogen-containing cross-linking agent is polysiloxane containing active hydrogen, at least 3 active hydrogen are directly connected with silicon atoms in the polysiloxane, and the active hydrogen content is 0.36-1.6% by mass.
In the active hydrogen-containing polysiloxane of the present invention, the active hydrogen position may be located at any position on the polysiloxane molecular chain, and the kinds of the raw material components are not particularly limited, and the same kind may be used alone, or a mixture of kinds having different active hydrogen contents may be used.
Preferably, the mildew-proof antibacterial agent is quaternary ammonium silicone oil.
In the components of the organosilicon wall coating material, quaternary ammonium silicone oil is preferably used as the mildew-proof antibacterial agent, because the common silver antibacterial agents such as nano silver and the like sold in the market can be yellowed after being used for a long time, the common quaternary ammonium antibacterial agents sold in the market have poor compatibility with vinyl silicone oil, methyl vinyl silicone resin and the like, and the quaternary ammonium silicone oil can not cause the problems, has high stability and can effectively play the mildew-proof antibacterial effect.
Preferably, the color paste is a mixture of toner and vinyl silicone oil.
Preferably, the platinum catalyst is at least one of simple substance platinum and a platinum-containing compound.
The platinum catalyst is mainly used for the cross-linking reaction among catalytic components, and can be specifically selected from inorganic substances such as chloroplatinic acid and the like, various coordination organic compounds of platinum and the like.
Preferably, the inhibitor is at least one of 3-methyl-1-butyn-3-ol, 1-acetylene-1-cyclohexanol, phenylbutynol, etc., tetramethyldivinyldisiloxane, 1,3,5, 7-tetramethylcyclotetrasiloxane, and polyvinyl silicone oil.
In combination with the platinum catalyst, the inhibitor serves primarily to control the rate of the crosslinking reaction and thus includes, but is not limited to, compounds similar to those described above.
Preferably, the base material is a woven fabric or a film material, and the woven fabric is woven from at least one of terylene, chinlon, cotton fiber, glass fiber, carbon fiber and aramid fiber; the film material is obtained by rolling at least one of TPU and PET to form a film.
The organic silicon wall cladding material can select woven fabrics woven by various different fibers as base materials, the fibers can be prepared into woven fabrics by knitting, tatting or non-woven fabric weaving and other processes, and can also be directly prepared into the base materials by calendering polymers such as TPU, PET and the like into films.
Preferably, the thickness of the substrate is 0.05 to 5mm.
The invention also aims to provide a preparation method of the organic silicon wall coating material, which comprises the following steps:
(1) Uniformly mixing all components of the organic silicon rubber layer, coating the mixture on release paper, placing a base material on the coating layer, and then heating and insulating;
(2) And stripping the release paper to obtain the organic silicon wall coating material.
The preparation method of the material has simple operation steps and can realize industrial scale production.
Preferably, the coating in the step (1) is one-time coating or multi-time coating.
The organic silicon rubber layer of the material can be directly heated and cured after being coated once, and can also be coated for multiple times and cured in a superimposed manner, and the organic silicon rubber layer is prepared according to actual requirements.
Preferably, the thickness applied in the step (1) is set to 5 to 100 filaments.
Preferably, the heat-holding in step (1) is performed in a hot-air heated tunnel oven.
Preferably, the heating and heat preservation time in the step (1) is 1-10 min, and the temperature is 100-150 ℃.
The invention also aims to provide application of the organic silicon wall coating material in interior decoration.
Compared with the existing traditional wallpaper wall cloth material, the organic silicon wall body coating material is more stable and reliable, has mildew-proof, antibacterial, antifouling and waterproof effects, does not have yellowing or mildew phenomena, and is extremely low in gas release amount and good in environmental friendliness; the material has good compatibility of each component, does not generate the phenomenon of frosting, has obvious sound insulation, heat insulation and flame retardant effects when in use, and is very suitable for decoration of different indoor environments.
The organic silicon wall coating material has the beneficial effects that the organic silicon wall coating material has no risk of exceeding the standard of siloxane content, and has no non-green solvent introduced into the components, so that the organic silicon wall coating material is safe, non-toxic and odorless in use; the components have good compatibility with organic silicon, do not generate a blooming phenomenon, have rich and stable colors, and simultaneously have multiple functions of mildew resistance, antibiosis, antifouling, flame retardation, heat insulation, sound insulation and the like. The invention also provides a preparation method of the organic silicon wall coating material and application of the organic silicon wall coating material in indoor decoration.
Detailed Description
In order to better illustrate the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to specific examples and comparative examples, which are intended to be understood in detail, but not intended to limit the invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention. The experimental reagents and instruments designed for the practice of the present invention and the comparative examples are common reagents and instruments unless otherwise specified.
Most of the raw materials used in the invention are selected from commercial products, wherein the vinyl silicone oil (viscosity at 25 ℃ is 10000 mPas) is selected from products of type 206-1w-7501B of New Material Co., ltd., providence, jiangxi; the weight-average molecular weight of the MQ type methyl vinyl silicon resin is 6000, the vinyl mass percentage content of the MQ type methyl vinyl silicon resin is 3 percent, and the MQ type methyl vinyl silicon resin (the weight-average molecular weight of the MQ type methyl vinyl silicon resin is 3000, the vinyl mass percentage content of the MQ type methyl vinyl silicon resin is 3 percent) is respectively selected from the products of XJY-8206C and XJY-8206B models sold in Jiangxi Xinjiayi new material Limited company; the hydrogen-containing cross-linking agent (polysiloxane with active hydrogen content of 0.5 wt%) is selected from 702B-50 type products available from Xinjiayi New Material Co., ltd.
Example 1
According to one embodiment of the organic silicon wall coating material and the preparation method thereof, the material comprises an organic rubber layer and a base material from top to bottom; the organic silicon rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil (viscosity at 25 ℃ is 10000 mPas), 25 parts of MQ type methyl vinyl silicone resin (weight-average molecular weight is 6000 and vinyl mass percentage content is 3%), 30 parts of inorganic porous filler (4A type zeolite with average particle size of 5 mu m and average pore diameter of 0.42 nm), 10 parts of hollow microspheres (acrylic polymer hollow microspheres with average particle size of 50 mu m), 2 parts of long-chain alkane silane coupling agent (octyl trimethoxy silane), 10 parts of hydrogen-containing cross-linking agent (polysiloxane with active hydrogen mass percentage content of 0.5%), 2 parts of mildew-proof antibacterial agent (quaternary ammonium salt silicone oil), 2 parts of color paste, 3 parts of platinum catalyst (isopropanol solution of chloroplatinic acid, 20000 ppm) and 1 part of inhibitor (1-ethynyl-1-cyclohexanol).
The base material is polyester woven fabric with a knitted structure, and the thickness of the base material is 0.8mm.
The preparation method of the organic silicon wall coating material comprises the following steps:
(1) Uniformly mixing all components of the silicone rubber layer, coating (with the thickness of 25 threads) on release paper, placing a base material on the coating layer, and then preserving heat for 5min at 130 ℃ in a tunnel furnace oven heated by hot air;
(2) And stripping the release paper to obtain the organic silicon wall coating material.
Example 2
The difference between this example and example 1 is that the weight average molecular weight of the MQ type methyl vinyl silicon resin is 3000, and the vinyl content is 3% by mass.
Example 3
This example differs from example 1 only in that the inorganic porous filler is a zeolite having an average particle diameter of 5 μm and an average pore diameter of 0.2 nm.
Example 4
This example differs from example 1 only in that the inorganic porous filler is a zeolite having an average particle diameter of 0.5 μm and an average pore diameter of 0.4 nm.
Example 5
This example differs from example 1 only in that the hollow microspheres are acrylic polymer hollow microspheres having an average particle size of 5 μm.
Example 6
The difference between this example and example 1 is only that the weight part of the methyl vinyl silicone resin is 2 parts.
Example 7
The present example differs from example 1 only in that the inorganic porous filler is present in an amount of 3 parts by weight.
Example 8
The difference between this example and example 1 is only that the part by weight of the hollow microspheres is 2 parts.
Example 9
The difference between the present example and example 1 is only that the weight part of the long-chain alkane silane coupling agent is 0.5 part.
Example 10
The difference between the embodiment and the embodiment 1 is only that the weight portion of the mildew-proof antibacterial agent is 0.2 portion.
Example 11
The difference between the embodiment and the embodiment 1 is only that the weight part of the mildew-proof antibacterial agent is 5 parts.
Example 12
The difference between this example and example 1 is only that the weight part of the methyl vinyl silicone resin is 35 parts.
Example 13
The difference between the present example and example 1 is only that the weight part of the long-chain alkane silane coupling agent is 4.5 parts.
Example 14
The difference between the embodiment and the embodiment 1 is only that the silicone rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil, 20 parts of methyl vinyl silicone resin, 40 parts of inorganic porous filler, 5 parts of hollow microspheres, 2 parts of long-chain alkane silane coupling agent, 12 parts of hydrogen-containing cross-linking agent, 2 parts of mildew-proof antibacterial agent, 2 parts of color paste, 3 parts of platinum catalyst and 1 part of inhibitor.
Example 15
The difference between the embodiment and the embodiment 1 is only that the silicone rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil, 30 parts of methyl vinyl silicone resin, 25 parts of inorganic porous filler, 15 parts of hollow microspheres, 4 parts of long-chain alkane silane coupling agent, 8 parts of hydrogen-containing cross-linking agent, 2 parts of mildew-proof antibacterial agent, 2 parts of color paste, 3 parts of platinum catalyst and 1 part of inhibitor.
Comparative example 1
The comparative example differed from example 1 only in that the raw material components of the silicone rubber layer did not contain a methyl vinyl silicon resin.
Comparative example 2
The comparative example differs from example 1 only in that the raw material components of the silicone rubber layer do not contain an inorganic porous filler.
Comparative example 3
The comparative example differs from example 1 only in that the raw material components of the silicone rubber layer do not contain hollow microspheres.
Comparative example 4
The comparative example differs from example 1 only in that the long-chain alkane silane coupling agent in the raw material component of the silicone rubber layer was replaced with propyltrimethoxysilane.
Comparative example 5
The comparative example is different from example 1 only in that the mildewproof antibacterial agent in the raw material components of the silicone rubber layer is dodecyl dimethyl benzyl ammonium chloride.
Effect example 1
In order to verify the service performance of the organic silicon wall coating material, the following performance tests are carried out on the products of each embodiment and each proportion:
(1) Siloxane ring content: the total siloxane D3-D12 content of the samples was determined according to US EPA3550C:2007 and US EPA8270D 2007 standard method (unit: ppm);
(2) And (3) flavor property: the samples were subjected to the following odor evaluations according to GMW3205-2017 standard test method;
stage 10: no smell;
and 9, stage: very slight odor;
and 8 stage: a slight odor;
and 7, stage: the smell is obvious, but not unpleasant;
and 6, level: odor was noticeable but tolerable;
stage 5: obvious smell, slight discomfort;
4, level: obvious smell and causing unpleasant feeling;
and 3, stage: odor causes a person to be very uncomfortable;
and 2, stage: the odor is very severe;
level 1: the smell is unbearable;
(3) Mildew-proof and antibacterial properties: testing each sample according to a QBT 2591-2003 standard method, and determining that the sample is qualified if the mildew resistance grade is less than grade 1 and the antibacterial rate is more than or equal to 90%;
(4) Antifouling property: each sample was evaluated according to the CFFA-141 standard method as follows;
level 1: the trace is very obvious and is almost not removed;
stage 2: the trace is obvious;
and 3, level: the trace is very shallow;
and 4, stage 4: no trace is left; if the trace is between the two stages, the change limitation of the upper stage and the lower stage can be carried out by adopting 0.5 stage;
(5) Heat insulation: testing the thermal conductivity of each sample according to the GB/T10294-2008 standard method, and if the thermal conductivity of the sample at the average temperature of-20 ℃ is less than or equal to 0.034W/(m.K), the thermal conductivity of the sample at the average temperature of 0 ℃ is less than or equal to 0.036W/(m.K) and the thermal conductivity of the sample at the average temperature of 40 ℃ is less than or equal to 0.041W/(m.K), the sample is regarded as excellent in thermal insulation;
(6) Sound insulation: the sound insulation evaluation is carried out on the sample according to the GB/T19889.3 standard method, and if the transmission attenuation result of the sample is more than or equal to 15dB, the sound insulation is considered to be excellent;
(7) Flame retardancy: performing flame retardant test on each sample according to an NFP92-503 standard method, and grading the fireproof result according to M4-M0, wherein M0 is the highest grade;
(8) Whether the blooming phenomenon occurs: cutting each sample into 20cm-sized experimental products, putting the experimental products into an oven at the temperature of 80 ℃, keeping the temperature for 7 days, taking out the experimental products, placing the samples to the room temperature, and observing whether liquid drops or powder are separated out on the surface by naked eyes.
The test results of each of the examples and comparative examples are shown in tables 1 and 2.
TABLE 1
TABLE 2
From the performance test results, it can be seen that each of the silicone wall coating materials prepared in the examples of the present invention has a siloxane content of not more than 300ppm, an odor grade of 7 or more, and an antifouling grade of 3.5 or more, and each of the samples has acceptable mildewproof, antibacterial, heat insulating, and sound insulating properties, and the samples have a flame retardant grade of M1 or more, and do not cause blooming, and the overall performance of the samples is excellent, among which the overall performance of the samples in examples 1, 14, and 15 is the best. In contrast, the product of comparative example 1 does not contain methyl vinyl silicone resin, the cross-linked structure of the coating material of the product is not compact, and the product cannot be matched with other components to form a composite porous structure in the combustion process, the content of siloxane ring bodies reaches more than 2000ppm, meanwhile, the antifouling grade is only 3 grades, and the flame retardant grade is only M3 grade; the product of comparative example 2 does not contain inorganic porous filler, the content of siloxane ring bodies exceeds the standard, the odor grade is only 5 grades, and the flame retardant grade is only M2 grade; the product of comparative example 3 has poor sound insulation and heat insulation performance and cannot reach the standard although the content of siloxane epoxy reaches the standard; the silane coupling agent in the product of comparative example 4 is not a long carbon chain structure, so it is difficult to function as a good hydrophobic layer, and the antifouling rating of the product is only 1 grade; the species of the antifungal antibacterial agent in the product of comparative example 5 is not good as the compatibilizing agent for each of the other components, it is difficult to achieve a good antifungal and antibacterial effect, and the surface is slightly frosted.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (17)
1. An organic silicon wall cladding material is characterized by comprising an organic silicon rubber layer and a base material from top to bottom; the organic silicon rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil, 1 to 40 parts of methyl vinyl silicone resin, 1 to 50 parts of inorganic porous filler, 1 to 20 parts of hollow microspheres, 0.5 to 5 parts of long-chain alkane silane coupling agent, 1 to 15 parts of hydrogen-containing cross-linking agent, 0.1 to 5 parts of mildew-proof antibacterial agent, 0 to 15 parts of color paste, 0.1 to 10 parts of platinum catalyst and 0.01 to 3 parts of inhibitor; the methyl vinyl silicon resin is MQ type methyl vinyl silicon resin; the weight average molecular weight of the methyl vinyl silicone resin is 4000 to 20000, and the mass percentage content of the vinyl is 0.5 to 6%; the particle size of the inorganic porous filler is 1 to 20 mu m; the particle size of the hollow microsphere is 10 to 200 mu m; the long-chain alkane silane coupling agent is C 6~16 A silane coupling agent of an alkyl structure; the mildew-proof antibacterial agent is quaternary ammonium salt silicone oil.
2. The organosilicon wall-covering material of claim 1, wherein the organosilicon rubber layer comprises the following raw material components in parts by weight:
100 parts of vinyl silicone oil, 5-30 parts of methyl vinyl silicone resin, 6-50 parts of inorganic porous filler, 5-20 parts of hollow microspheres, 1-4 parts of long-chain alkane silane coupling agent, 1-15 parts of hydrogen-containing cross-linking agent, 0.1-5 parts of mildew-proof antibacterial agent, 0-15 parts of color paste, 0.1-10 parts of platinum catalyst and 0.01-3 parts of inhibitor.
3. The silicone wall covering material of claim 1, wherein the vinyl silicone oil has a viscosity of 1000 to 500000mpas at 25 ℃.
4. The silicone wall covering material according to claim 3, wherein the vinyl silicone oil has a viscosity of 5000 to 100000mPas at 25 ℃.
5. The silicone wall covering material of claim 1, wherein the vinyl content of the methyl vinyl silicone resin is 1 to 5% by mass.
6. The silicone wall covering according to claim 1, wherein the inorganic porous filler is at least one of activated carbon, diatomaceous earth, and zeolite.
7. The silicone wall coating material of claim 6, wherein the pore size of the inorganic porous filler is 0.3 to 10nm.
8. The silicone wall covering material of claim 1, wherein the hollow microspheres are at least one of thermoplastic polymer hollow microspheres, hollow glass microspheres, and hollow silicone microspheres.
9. The silicone wall covering of claim 1, wherein the hydrogen-containing cross-linking agent is an active hydrogen-containing polysiloxane.
10. The organosilicon wall-covering material of claim 9, wherein at least 3 of the active hydrogens are directly connected with silicon atoms in polysiloxane, and the active hydrogens are contained in 0.36 to 1.6% by mass.
11. The organosilicon wall-covering material of claim 1, comprising at least one of the following (a) - (c):
(a) The color paste is a mixture of toner and vinyl silicone oil;
(b) The platinum catalyst is at least one of simple substance platinum and a platinum-containing compound;
(c) The inhibitor is at least one of 3-methyl-1-butine-3-alcohol, 1-acetylene-1-cyclohexanol, phenylbutynol, tetramethyl divinyl disiloxane and polyvinyl silicone oil.
12. The organosilicon wall-covering material of claim 1, wherein the substrate is a woven fabric or a film material, and the woven fabric is woven from at least one of terylene, chinlon, cotton fiber, glass fiber, carbon fiber and aramid fiber; the film material is obtained by rolling at least one of TPU and PET to form a film.
13. The silicone wall coating material of claim 12, wherein the thickness of the base material is 0.05 to 5mm.
14. The preparation method of the organosilicon wall-covering material according to any of claims 1 to 13, comprising the following steps:
(1) Uniformly mixing all components of the organic silicon rubber layer, coating the mixture on release paper, placing a base material on the coating layer, and then heating and insulating;
(2) And stripping the release paper to obtain the organic silicon wall coating material.
15. The method for preparing the organosilicon wall coating material according to claim 14, wherein the thickness of the coating in the step (1) is set to be 5 to 100 filaments.
16. The method for preparing the silicone wall coating material according to claim 14, wherein the heating and heat preservation time in the step (1) is 1 to 10min, and the temperature is 100 to 150 ℃.
17. The use of the silicone wall covering material as defined in any one of claims 1 to 13 in interior decoration.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010083946A (en) * | 2008-09-30 | 2010-04-15 | Shin-Etsu Chemical Co Ltd | Silicone composition for use in covering, and covered film covered with cured film of the same |
| CN105619968A (en) * | 2016-03-03 | 2016-06-01 | 惠州赛力珑新材料有限公司 | Environment-friendly weather-resistant and stain-resistant wallpaper and making method |
| CN107288282A (en) * | 2017-07-14 | 2017-10-24 | 东莞市火矽硅橡胶科技有限公司 | Fireproof silicone rubber wallpaper |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010083946A (en) * | 2008-09-30 | 2010-04-15 | Shin-Etsu Chemical Co Ltd | Silicone composition for use in covering, and covered film covered with cured film of the same |
| CN105619968A (en) * | 2016-03-03 | 2016-06-01 | 惠州赛力珑新材料有限公司 | Environment-friendly weather-resistant and stain-resistant wallpaper and making method |
| CN107288282A (en) * | 2017-07-14 | 2017-10-24 | 东莞市火矽硅橡胶科技有限公司 | Fireproof silicone rubber wallpaper |
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