CN113493673A - Flame-retardant silicone sealant and preparation method thereof - Google Patents
Flame-retardant silicone sealant and preparation method thereof Download PDFInfo
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- CN113493673A CN113493673A CN202010196538.XA CN202010196538A CN113493673A CN 113493673 A CN113493673 A CN 113493673A CN 202010196538 A CN202010196538 A CN 202010196538A CN 113493673 A CN113493673 A CN 113493673A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 55
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000004590 silicone sealant Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 229920002545 silicone oil Polymers 0.000 claims abstract description 53
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 33
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 32
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003054 catalyst Substances 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 32
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 32
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 239000005060 rubber Substances 0.000 claims abstract description 23
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 20
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 20
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 19
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 19
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 18
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 18
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000005011 phenolic resin Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 17
- XGRSAFKZAGGXJV-UHFFFAOYSA-N 3-azaniumyl-3-cyclohexylpropanoate Chemical compound OC(=O)CC(N)C1CCCCC1 XGRSAFKZAGGXJV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 16
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 16
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 16
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 16
- DDCDEKHXBABHHI-UHFFFAOYSA-N acetylene cyclohexanol Chemical compound C1(CCCCC1)O.C#C DDCDEKHXBABHHI-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 16
- 239000004014 plasticizer Substances 0.000 claims abstract description 16
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 16
- 229960004711 sodium monofluorophosphate Drugs 0.000 claims abstract description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000000084 colloidal system Substances 0.000 claims abstract description 13
- 235000013599 spices Nutrition 0.000 claims abstract description 13
- 239000002304 perfume Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- 239000004006 olive oil Substances 0.000 claims description 8
- 235000008390 olive oil Nutrition 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 4
- 244000043261 Hevea brasiliensis Species 0.000 description 5
- 229920003052 natural elastomer Polymers 0.000 description 5
- 229920001194 natural rubber Polymers 0.000 description 5
- 239000000565 sealant Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 2
- IUMSDRXLFWAGNT-UHFFFAOYSA-N Dodecamethylcyclohexasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 IUMSDRXLFWAGNT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N hexamethylcyclotrisiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1 HTDJPCNNEPUOOQ-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000004597 plastic additive Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a flame-retardant silicone sealant which comprises the following raw materials in parts by weight: trimethoxy end-capped polydimethylsiloxane, a plasticizer, a filler, a cross-linking agent, a coupling agent, a flame retardant, a catalyst, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, hydrogen peroxide, ethylene glycol, phenolic resin, water glass, a spice, vinyl-terminated silicone oil, high vinyl silicone oil, a catalyst, dimethyl silicone oil, ethyne cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent; the preparation method of the flame-retardant silicone sealant comprises the following steps: s1, stirring and mixing; s2, adding a solvent; s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
Description
Technical Field
The invention relates to the field of sealants, in particular to a flame-retardant silicone sealant and a preparation method thereof.
Background
The silicone sealant has the characteristics of excellent temperature resistance, weather resistance, ageing resistance, no cracking, shock resistance, moisture resistance and the like, and is widely applied to the fields of buildings, electronic appliances, automobiles, aerospace and aviation. The general low-elongation fireproof flame-retardant sealant cannot meet the requirement of the high displacement capacity of a concrete joint, has poor bonding performance with concrete, is easy to crack, loses the sealing effect and has overhigh maintenance cost. Along with the enhancement of the fire safety awareness of people, the requirement on the fire-proof level of the sealant is higher and higher. Although the common silicone sealant has certain flame retardant property, the flame retardant property of the common silicone sealant still can not meet the requirement of the industry.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
The flame-retardant silicone sealant comprises the following raw materials in parts by weight: 40-55 parts of trimethoxy terminated polydimethylsiloxane, 15-25 parts of plasticizer, 30-50 parts of filler, 0.1-3 parts of cross-linking agent, 1-10 parts of coupling agent, 4-8 parts of flame retardant, 0.1-3 parts of catalyst, 10-20 parts of organic hydroxyl silicone, 10-30 parts of organic methyl silicone, 80-90 parts of calcium carbonate, 4-6 parts of rubber, 1-2 parts of sodium dodecyl sulfate, 0.5-2 parts of sodium monofluorophosphate, 0.5-2 parts of hydrogen peroxide, 0.5-2 parts of ethylene glycol, 1-4 parts of phenolic resin, 0.5-2 parts of water glass, 0.5-2 parts of spice, 0.5-2 parts of terminal vinyl silicone oil, 0.5-2 parts of high vinyl silicone oil, 0.5-2 parts of catalyst, 10-15 parts of dimethyl silicone oil, 10-15 parts of acetylene cyclohexanol, 10-20 parts of silazane, 10-30 parts of sericite powder, 10-20 parts of acrylic resin and 10-20 parts of silane coupling agent.
The preparation method of the flame-retardant silicone sealant is used for preparing the flame-retardant silicone sealant and comprises the following steps:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
As a further scheme of the invention: and in the S1, the stirring speed of the chemical stirrer is controlled to be 40 r/min-50 r/min.
As a further scheme of the invention: and in the S2, the stirring speed of the chemical stirrer is controlled to be 65 r/min-75 r/min.
As a further scheme of the invention: and in the S3, the stirring speed of the chemical stirrer is controlled to be 25 r/min-35 r/min.
Compared with the prior art, the invention has the beneficial effects that: the smoke generated during combustion can be absorbed in time, and the effects of isolating flame and smoke and preventing fire are achieved; in addition, the addition amount of the fire retardant exceeds that of the common fire retardant, and meanwhile, the fire-proof flame-retardant sealant is not influenced to have excellent adhesion with building materials such as concrete, stone and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The flame-retardant silicone sealant comprises the following raw materials in parts by weight: 40-55 parts of trimethoxy terminated polydimethylsiloxane, 15-25 parts of plasticizer, 30-50 parts of filler, 0.1-3 parts of cross-linking agent, 1-10 parts of coupling agent, 4-8 parts of flame retardant, 0.1-3 parts of catalyst, 10-20 parts of organic hydroxyl silicone, 10-30 parts of organic methyl silicone, 80-90 parts of calcium carbonate, 4-6 parts of rubber, 1-2 parts of sodium dodecyl sulfate, 0.5-2 parts of sodium monofluorophosphate, 0.5-2 parts of hydrogen peroxide, 0.5-2 parts of ethylene glycol, 1-4 parts of phenolic resin, 0.5-2 parts of water glass, 0.5-2 parts of spice, 0.5-2 parts of terminal vinyl silicone oil, 0.5-2 parts of high vinyl silicone oil, 0.5-2 parts of catalyst, 10-15 parts of dimethyl silicone oil, 10-15 parts of acetylene cyclohexanol, 10-20 parts of silazane, 10-30 parts of sericite powder, 10-20 parts of acrylic resin and 10-20 parts of silane coupling agent.
The preparation method of the flame-retardant silicone sealant is used for preparing the flame-retardant silicone sealant and comprises the following steps:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
Example two
The flame-retardant silicone sealant comprises the following raw materials in parts by weight: 40 parts of trimethoxy end-capped polydimethylsiloxane, 15 parts of plasticizer, 30 parts of filler, 0.1 part of cross-linking agent, 1 part of coupling agent, 4 parts of flame retardant, 0.1 part of catalyst, 10 parts of organic hydroxyl silicone, 10 parts of organic methyl silicone, 80 parts of calcium carbonate, 4 parts of rubber, 1 part of sodium dodecyl sulfate, 0.5 part of sodium monofluorophosphate, 0.5 part of hydrogen peroxide, 0.5 part of ethylene glycol, 1 part of phenolic resin, 0.5 part of water glass, 0.5 part of spice, 0.5 part of terminal vinyl silicone oil, 0.5 part of high vinyl silicone oil, 0.5 part of catalyst, 10 parts of dimethyl silicone oil, 10 parts of ethyne cyclohexanol, 10 parts of silazane, 10 parts of sericite powder, 10 parts of acrylic resin and 10 parts of silane coupling agent.
The preparation method of the flame-retardant silicone sealant is used for preparing the flame-retardant silicone sealant and comprises the following steps:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
EXAMPLE III
The flame-retardant silicone sealant comprises the following raw materials in parts by weight: 50 parts of trimethoxy end-capped polydimethylsiloxane, 20 parts of plasticizer, 45 parts of filler, 1.5 parts of cross-linking agent, 8 parts of coupling agent, 6 parts of flame retardant, 1.5 parts of catalyst, 15 parts of organic hydroxyl silicone, 20 parts of organic methyl silicone, 85 parts of calcium carbonate, 5 parts of rubber, 1.5 parts of sodium dodecyl sulfate, 1 part of sodium monofluorophosphate, 1 part of hydrogen peroxide, 1 part of ethylene glycol, 1.5 parts of phenolic resin, 1 part of water glass, 1 part of perfume, 1 part of vinyl-terminated silicone oil, 1 part of high vinyl silicone oil, 1 part of catalyst, 13 parts of dimethyl silicone oil, 13 parts of acetylene cyclohexanol, 15 parts of silazane, 20 parts of sericite powder, 15 parts of acrylic resin and 15 parts of silane coupling agent.
The preparation method of the flame-retardant silicone sealant is used for preparing the flame-retardant silicone sealant and comprises the following steps:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
Example four
The flame-retardant silicone sealant comprises the following raw materials in parts by weight: 55 parts of trimethoxy terminated polydimethylsiloxane, 25 parts of plasticizer, 50 parts of filler, 3 parts of cross-linking agent, 10 parts of coupling agent, 8 parts of flame retardant, 3 parts of catalyst, 20 parts of organic hydroxyl silicone, 30 parts of organic methyl silicone, 90 parts of calcium carbonate, 6 parts of rubber, 2 parts of sodium dodecyl sulfate, 2 parts of sodium monofluorophosphate, 2 parts of hydrogen peroxide, 2 parts of ethylene glycol, 3 parts of olive oil, 4 parts of phenolic resin, 2 parts of water glass, 2 parts of perfume, 2 parts of vinyl-terminated silicone oil, 2 parts of high vinyl silicone oil, 2 parts of catalyst, 15 parts of dimethyl silicone oil, 15 parts of acetylene cyclohexanol, 20 parts of silazane, 30 parts of sericite powder, 20 parts of acrylic resin and 20 parts of silane coupling agent.
The preparation method of the flame-retardant silicone sealant is used for preparing the flame-retardant silicone sealant and comprises the following steps:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
The trimethoxy terminated polydimethylsiloxane is synthesized by hydrolysis by using primary form dimethyl cyclosiloxane as a main raw material, takes a silicon-oxygen (Si-O) bond as a main chain, and is an organic-inorganic compound with a silicon atom directly connected with an organic group; the primary form dimethyl cyclosiloxane molecular structure is annular, mainly comprises hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), hexamethylcyclotrisiloxane (D3), or octamethylcyclotetrasiloxane (D4), or decamethylcyclopentasiloxane (D5) and or dodecamethylcyclohexasiloxane (D6), and is colorless transparent or milky liquid with the content of more than 50 percent, is combustible, free of peculiar smell, insoluble in water and soluble in organic solvents such as benzene.
The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed; the rubber is one of natural rubber or synthetic rubber, and the rubber of the invention adopts natural rubber; the natural rubber is produced from a latex in which a part of non-rubber components contained therein is left in the solid natural rubber. Natural rubber typically contains 92% to 95% rubber hydrocarbons, while non-rubber hydrocarbons comprise 5% to 8%.
The phenolic resin is also called bakelite, also called bakelite powder. The raw material is colorless or yellow brown transparent, and the raw material is usually sold in markets and is red, yellow, black, green, brown, blue and the like by adding a coloring agent, and the raw material is in a granular or powdery state; the corrosion inhibitor is resistant to weak acid and weak base, can be decomposed when meeting strong acid, and can be corroded when meeting strong base. Insoluble in water, and soluble in organic solvents such as acetone and alcohol. Phenol formaldehyde or its derivatives.
The high vinyl silicone oil mainly comprises vinyl-terminated polydimethylsiloxane (Vi-PDMS) and vinyl-terminated polymethylvinylsiloxane (Vi-PMVS), and can provide products with different viscosities and vinyl contents according to requirements; high vinyl silicone oils can be divided into: the terminal vinyl silicone oil and the high vinyl silicone oil are main raw materials of addition type liquid silicone rubber, organic silicone gel and the like; modifier/plastic additive/reinforcing material of the rubber compound, and the like.
The dimethyl silicone oil is also called methyl silicone oil and polydimethylsiloxane liquid; colorless transparent viscous liquid, tasteless, odorless and nontoxic; the molecular formula is CH3[ Si (cH3)2] nSi (CH3)3, and the average molecular weight is 5000-100000; the kinematic viscosity varies from 1.0 x 10 < -6 > to 100000 x 10 < -6 > square meters per second according to the difference of molecular weight; the long-term use temperature range is-50-180 ℃, and the long-term use can be carried out under the condition of air isolation or in inert gas at the temperature of 200 ℃; the viscosity coefficient is 0.31-0.61; the surface tension is 1.59-2.15 multiplied by 10 < -4 > N/cm; a dielectric constant (23 ℃, 100Hz) of 2.18 to 2.17; a volume resistivity (23 ℃) of 1.0 × 1014 to 1.0 × 1016 Ω cm 3; a dielectric loss tangent value (23 ℃, 100Hz) of 0.00002-0.00004; the breakdown voltage strength is 13.7-17.7 kV/mm.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. The flame-retardant silicone sealant is characterized by comprising the following raw materials in parts by weight: 40-55 parts of trimethoxy terminated polydimethylsiloxane, 15-25 parts of plasticizer, 30-50 parts of filler, 0.1-3 parts of cross-linking agent, 1-10 parts of coupling agent, 4-8 parts of flame retardant, 0.1-3 parts of catalyst, 10-20 parts of organic hydroxyl silicone, 10-30 parts of organic methyl silicone, 80-90 parts of calcium carbonate, 4-6 parts of rubber, 1-2 parts of sodium dodecyl sulfate, 0.5-2 parts of sodium monofluorophosphate, 0.5-2 parts of hydrogen peroxide, 0.5-2 parts of ethylene glycol, 1-4 parts of phenolic resin, 0.5-2 parts of water glass, 0.5-2 parts of spice, 0.5-2 parts of terminal vinyl silicone oil, 0.5-2 parts of high vinyl silicone oil, 0.5-2 parts of catalyst, 10-15 parts of dimethyl silicone oil, 10-15 parts of acetylene cyclohexanol, 10-20 parts of silazane, 10-30 parts of sericite powder, 10-20 parts of acrylic resin and 10-20 parts of silane coupling agent.
2. The flame-retardant silicone sealant according to claim 1, characterized by comprising the following raw materials in parts by weight: 40 parts of trimethoxy end-capped polydimethylsiloxane, 15 parts of plasticizer, 30 parts of filler, 0.1 part of cross-linking agent, 1 part of coupling agent, 4 parts of flame retardant, 0.1 part of catalyst, 10 parts of organic hydroxyl silicone, 10 parts of organic methyl silicone, 80 parts of calcium carbonate, 4 parts of rubber, 1 part of sodium dodecyl sulfate, 0.5 part of sodium monofluorophosphate, 0.5 part of hydrogen peroxide, 0.5 part of ethylene glycol, 1 part of phenolic resin, 0.5 part of water glass, 0.5 part of spice, 0.5 part of terminal vinyl silicone oil, 0.5 part of high vinyl silicone oil, 0.5 part of catalyst, 10 parts of dimethyl silicone oil, 10 parts of ethyne cyclohexanol, 10 parts of silazane, 10 parts of sericite powder, 10 parts of acrylic resin and 10 parts of silane coupling agent.
3. The flame-retardant silicone sealant according to claim 1, characterized by comprising the following raw materials in parts by weight: 50 parts of trimethoxy end-capped polydimethylsiloxane, 20 parts of plasticizer, 45 parts of filler, 1.5 parts of cross-linking agent, 8 parts of coupling agent, 6 parts of flame retardant, 1.5 parts of catalyst, 15 parts of organic hydroxyl silicone, 20 parts of organic methyl silicone, 85 parts of calcium carbonate, 5 parts of rubber, 1.5 parts of sodium dodecyl sulfate, 1 part of sodium monofluorophosphate, 1 part of hydrogen peroxide, 1 part of ethylene glycol, 1.5 parts of phenolic resin, 1 part of water glass, 1 part of perfume, 1 part of vinyl-terminated silicone oil, 1 part of high vinyl silicone oil, 1 part of catalyst, 13 parts of dimethyl silicone oil, 13 parts of acetylene cyclohexanol, 15 parts of silazane, 20 parts of sericite powder, 15 parts of acrylic resin and 15 parts of silane coupling agent.
4. The flame-retardant silicone sealant according to claim 1, characterized by comprising the following raw materials in parts by weight: 55 parts of trimethoxy terminated polydimethylsiloxane, 25 parts of plasticizer, 50 parts of filler, 3 parts of cross-linking agent, 10 parts of coupling agent, 8 parts of flame retardant, 3 parts of catalyst, 20 parts of organic hydroxyl silicone, 30 parts of organic methyl silicone, 90 parts of calcium carbonate, 6 parts of rubber, 2 parts of sodium dodecyl sulfate, 2 parts of sodium monofluorophosphate, 2 parts of hydrogen peroxide, 2 parts of ethylene glycol, 3 parts of olive oil, 4 parts of phenolic resin, 2 parts of water glass, 2 parts of perfume, 2 parts of vinyl-terminated silicone oil, 2 parts of high vinyl silicone oil, 2 parts of catalyst, 15 parts of dimethyl silicone oil, 15 parts of acetylene cyclohexanol, 20 parts of silazane, 30 parts of sericite powder, 20 parts of acrylic resin and 20 parts of silane coupling agent.
5. A method for preparing a flame retardant silicone sealant for use in preparing a flame retardant silicone sealant according to claims 1-4, comprising the steps of:
s1, stirring and mixing: respectively pouring trimethoxy end-capped polydimethylsiloxane, organic hydroxyl silicone, organic methyl silicone, calcium carbonate, rubber, sodium dodecyl sulfate, sodium monofluorophosphate, phenolic resin, water glass, acetylene cyclohexanol, silazane, sericite powder, acrylic resin and a silane coupling agent which are equal in weight part into a chemical stirrer, and stirring and mixing to form a mixture;
s2, adding a solvent: gradually adding the same amount of plasticizer, filler, cross-linking agent, coupling agent, flame retardant, catalyst, hydrogen peroxide, ethylene glycol, olive oil, terminal vinyl silicone oil, high vinyl silicone oil, catalyst and dimethyl silicone oil into the mixture formed in S1, and stirring and mixing to form a colloid substance;
s3, adding spice: gradually adding the same amount of perfume by weight into the colloid formed in the S2, and stirring and mixing to form the flame-retardant silicone sealant.
6. The method of claim 5, wherein the stirring speed of the chemical stirrer in S1 is controlled to be 40-50 r/min.
7. The method of claim 5, wherein the stirring speed of the chemical stirrer in S2 is controlled to be 65 r/min-75 r/min.
8. The method of claim 5, wherein the stirring speed of the chemical stirrer in S3 is controlled to be 25 r/min-35 r/min.
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