CN111471304A - Flame-retardant and fire-resistant silicon rubber material and preparation method and application thereof - Google Patents
Flame-retardant and fire-resistant silicon rubber material and preparation method and application thereof Download PDFInfo
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- CN111471304A CN111471304A CN202010496808.9A CN202010496808A CN111471304A CN 111471304 A CN111471304 A CN 111471304A CN 202010496808 A CN202010496808 A CN 202010496808A CN 111471304 A CN111471304 A CN 111471304A
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- Prior art keywords
- flame
- retardant
- fire
- parts
- silicone rubber
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 116
- 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 105
- 239000003063 flame retardant Substances 0.000 title claims abstract description 105
- 239000000463 material Substances 0.000 title claims abstract description 82
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 30
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 17
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004898 kneading Methods 0.000 claims description 57
- 239000004945 silicone rubber Substances 0.000 claims description 56
- 238000002156 mixing Methods 0.000 claims description 36
- 239000000843 powder Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 229920001296 polysiloxane Polymers 0.000 claims description 20
- 239000013590 bulk material Substances 0.000 claims description 17
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 239000007822 coupling agent Substances 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 11
- 239000011707 mineral Substances 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 10
- 239000004327 boric acid Substances 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 10
- 229910044991 metal oxide Inorganic materials 0.000 claims description 10
- 150000004706 metal oxides Chemical class 0.000 claims description 10
- 239000000075 oxide glass Substances 0.000 claims description 10
- 239000010455 vermiculite Substances 0.000 claims description 10
- 229910052902 vermiculite Inorganic materials 0.000 claims description 10
- 235000019354 vermiculite Nutrition 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 229920000388 Polyphosphate Polymers 0.000 claims description 8
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 239000001205 polyphosphate Substances 0.000 claims description 8
- 235000011176 polyphosphates Nutrition 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 125000005375 organosiloxane group Chemical group 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- 229920001875 Ebonite Polymers 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- -1 methyl vinyl phenyl Chemical group 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000003396 thiol group Chemical class [H]S* 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 11
- 238000009413 insulation Methods 0.000 description 9
- 230000002265 prevention Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229920005560 fluorosilicone rubber Polymers 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000012994 industrial processing Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- KHDSWONFYIAAPE-UHFFFAOYSA-N silicon sulfide Chemical compound S=[Si]=S KHDSWONFYIAAPE-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/823—Temperature control
-
- 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
-
- 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
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/38—Boron-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- 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
- 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
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention provides a flame-retardant and fire-resistant silicon rubber material, a preparation method and application thereof, wherein the flame-retardant and fire-resistant silicon rubber material comprises the following raw materials in parts by weight: 50-100 parts of organic silicon rubber, 1-39 parts of organic siloxane, 20-50 parts of reinforcing filler, 50-300 parts of flame retardant, 90-300 parts of fire-resistant filler and 1-19 parts of other auxiliary agents. The flame-retardant and fire-resistant silicon rubber material has good flame-retardant and fire-resistant performance, is easy to produce and process and has low cost.
Description
Technical Field
The invention relates to the technical field of refractory materials, in particular to a flame-retardant and fire-resistant silicone rubber material and a preparation method and application thereof.
Background
At present, various industries at home and abroad increasingly pay more attention to electric power fire prevention and building fire prevention, governments of various countries also have a plurality of requirements and standards, and the fire-resistant fire-proof requirement grade is higher and higher.
For example, the most important safety point in the power industry is the power cable, which is a key point for protection in power transmission, transmission and transformation, and in dense places of power cables and power equipment. The hidden danger of electric power safety protection can be greatly eliminated, and the fire disaster is reduced; can avoid improving the industrial and living safety environment to a great extent. In addition, the potential safety hazards of the building industry are mainly concentrated on two parts, and firstly, the main situation of the electric power safety is basically similar to that of the electric power industry; the other is the fire prevention of the heat-insulating material, and the combustion supporting of the heat-insulating material is a main assistant for large-scale fire disasters of many buildings at present; once the fire source exists, if a material with excellent fireproof and fireproof performance is used for isolating the fire source or flame from spreading, the loss can be prevented from being reduced to a great extent.
However, most of the products used in various industries are made of materials such as mica, asbestos, rock wool, mineral powder isolation bags, glass fiber cloth materials and the like to be fireproof and fireproof, and are unsafe and environmentally-friendly.
In view of this, a novel, safe, environment-friendly, and excellent-performance flame-retardant refractory material is provided to block the spread of fire sources or flames, so that loss can be greatly reduced and the current situation of the industry can be improved.
Disclosure of Invention
Aiming at the technical problems, the invention provides a flame-retardant and fire-resistant silicon rubber material which is good in flame-retardant and fire-resistant performance, easy to produce and process and low in cost, and a preparation method and application thereof.
In order to achieve the purpose, the invention provides a flame-retardant and fire-resistant silicone rubber material which comprises the following raw materials in parts by weight: 50-100 parts of organic silicon rubber, 1-39 parts of organic siloxane, 20-50 parts of reinforcing filler, 50-300 parts of flame retardant, 90-300 parts of fire-resistant filler and 1-19 parts of other auxiliary agents.
As an optional technical scheme, the organic silicon rubber is selected from one or a combination of a plurality of high-temperature organic silicon sulfide rubber, room-temperature organic silicon sulfide rubber, single-component organic silicon rubber and double-component organic silicon rubber.
As an optional technical solution, the silicone rubber is selected from one or a combination of several of methyl silicone rubber, methyl vinyl phenyl silicone rubber, nitrile silicone rubber and fluorosilicone rubber.
As an alternative solution, the organosiloxane has the general formula: [ R1R2SiO ] m- [ R1R2SiO ] n, wherein the R1 and R2 groups are selected from mercapto (SH), methyl (Me), ethyl (Et), propyl (Pr), Ph (phenyl), vinyl (Vi), hydrogen (H), hydroxyl (OH) or alkyl (R); n, 0, 1, 2, 3.
As an optional technical scheme, the reinforcing filler is one or a combination of more of carbon black, white carbon black, silica micropowder and diatomite.
As an optional technical scheme, the flame-retardant filler is one or a combination of several of hydroxide, piperazine, thiophosphate, polyphosphate, hypophosphite and platinum flame retardant.
As an optional technical scheme, the refractory filler is one or a combination of more of mineral silicate, metal oxide glass powder, boric acid and vermiculite powder.
As an optional technical scheme, the other auxiliary agent is one or a combination of more of a coupling agent 151, a coupling agent 171, hydrogen-containing silicone oil, hydroxyl-based silicone oil, methyl silicone oil, vinyl silicone oil, stearic acid and zinc stearate.
The invention also provides a preparation method of the flame-retardant and fire-resistant silicon rubber material, which comprises the following steps:
s1, mixing the organic silicon rubber in a kneading machine, wherein the mixing temperature is less than or equal to 110 ℃;
s2, adding organic siloxane into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s3, adding the reinforcing filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a lumpy material;
s4, adding the flame retardant into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s5, adding the refractory filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a lumpy material;
s6, adding the other auxiliary agents into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a lumpy material;
s7, mixing the materials formed in the steps S1-S6, kneading at normal temperature, heating the kneading machine, sealing a pressure-applying cover when the temperature is 120 ℃, vacuumizing for 40-50 minutes until the vacuum degree is more than or equal to-0.7 Mpa, and keeping the materials in the kneading machine to be lower than 175 ℃;
s8, moving the bulk silicone rubber formed by kneading and mixing in the step S7 out of the kneader, and cooling;
s9, carrying out open milling on the cooled bulk silicon rubber on an open mill to obtain sheet silicon rubber;
s10, putting the sheet silicon rubber into a filter for filtering, filtering and forming into strips or blocks, and packaging to obtain the finished flame-retardant and fire-resistant silicon rubber material.
The invention also provides the application of the flame-retardant and fire-resistant silicone rubber material, and the flame-retardant and fire-resistant silicone rubber material is used for extrusion molding of various pipes and special-shaped products to prepare silicone tubes, special-shaped silicone pieces, silicone plates or silicone sheets; or the flame-retardant and fire-resistant silicone rubber is used for being processed into foaming materials, film materials, hard rubber plates, soft rubber plates, adhesive tapes, conductive materials, heat-conducting materials or self-adhesive tape products through secondary processing.
Compared with the prior art, the flame-retardant and fire-resistant silicon rubber material has the obvious advantages and beneficial effects that:
(1) according to the invention, the organic silicon rubber is selected as a carrier, so that the defects and pollution of inorganic powder in the production and processing process can be improved, and the processability of the product can be improved; the product related by the invention can be made into a required product or shape through different processing technologies, and the application range and the application difficulty of the product are greatly improved. In addition, the organic silicon rubber is selected to be matched with related fillers, so that the effective components of the inorganic fillers can be completely wrapped, and a more effective product is formed.
(2) According to the invention, a specific flame-retardant system is selected, the flame-retardant filler is one or a combination of several of hydroxide, piperazine, thiophosphate, polyphosphate, hypophosphite and platinum flame retardant, the flame-retardant effect is excellent after multiple rounds of verification, the flame-retardant grade can reach V0 grade, the oxygen index can reach a peak value of more than 55, no harmful substance is generated, and the flame-retardant coating is more environment-friendly and safe.
(3) The invention selects the specific refractory filler as one or a combination of several of mineral silicate, metal oxide glass powder, boric acid and vermiculite powder, and the use process and material performance of the product are different from those of the traditional filler; the fire-proof block-shaped insulator is non-combustible after exposed fire or high temperature, extremely isolates a fire source and the temperature, can form a block-shaped insulator at the temperature of over 380 ℃, is very hard, is similar to a ceramic material, and can achieve the effects of fire insulation and temperature insulation.
(4) And the flame-retardant and fire-resistant silicone rubber material in the normal state has excellent rubber characteristics and better heat-conducting property, and can be widely applied to various industries.
For example, the flame-retardant and fire-resistant silicone rubber material can be used for extrusion molding of various pipes and special-shaped products, and can be made into silicone tubes, special-shaped silicone pieces, silicone plates or silicone sheets through extrusion, mold pressing and injection, so that the effects of insulation, sealing, flame retardance, high and low temperature resistance, fire resistance, acid and alkali resistance, salt mist resistance and the like are achieved; the flame-retardant polyurethane foam material can be further processed into products such as foam materials, film materials, hard rubber plates, soft rubber plates, adhesive tapes, conductive materials, heat-conducting materials or self-adhesive tapes by secondary processing, and is applied to different industries, particularly in the fields of flame retardance and fire prevention.
(5) The flame-retardant and fire-resistant silicon rubber material obtained by the invention has excellent performance, and the processing method is extremely simple, so that the industrial processing energy consumption is greatly reduced, and the processing difficulty of the product is greatly improved.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following detailed description of the embodiments is given.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The invention provides a flame-retardant and fire-resistant silicon rubber material which comprises the following raw materials in parts by weight: 50-100 parts of organic silicon rubber, 1-39 parts of organic siloxane, 20-50 parts of reinforcing filler, 50-300 parts of flame retardant, 90-300 parts of fire-resistant filler and 1-19 parts of other auxiliary agents.
Among them, it is preferable that the above-mentioned silicone rubber is, for example, one or a combination of several selected from HTV high-temperature silicone rubber (high-temperature organic vulcanized silicone rubber), RTV room-temperature silicone rubber (room-temperature organic vulcanized silicone rubber), one-component silicone rubber, and two-component silicone rubber. Or, specifically, the silicone rubber is, for example, one or a combination of several selected from the group consisting of methyl silicone rubber, methyl vinyl phenyl silicone rubber, nitrile silicone rubber, and fluorosilicone rubber. The organic silicon rubber can be selected to be matched with the subsequent related fillers (such as reinforcing filler, flame-retardant filler, fire-resistant filler and the like) to completely wrap the effective components of the inorganic filler to form a more effective product, and the defects and pollution of inorganic powder in the production and processing process can be improved. Wherein the general formula of the organic silicon rubber is as follows: [ R1R2SiO ] m- [ R1R2SiO ] n, wherein R1R2 is a SH, Me, Et, Pr, Ph, Vi, H, OH, R group, and m, n is 3, 4, 5.
In addition, the above-mentioned organosiloxane has a general formula: [ R1R2SiO ] m- [ R1R2SiO ] n, wherein the R1 and R2 groups are selected from mercapto (SH), methyl (Me), ethyl (Et), propyl (Pr), Ph (phenyl), vinyl (Vi), hydrogen (H), hydroxyl (OH) or alkyl (R); n (n is a natural number).
In a preferred embodiment, the reinforcing filler is one or a combination of carbon black, silica powder and diatomite.
In a preferred embodiment, the flame retardant filler is, for example, one or a combination of several of hydroxide, piperazine, thiophosphate, polyphosphate, hypophosphite and platinum flame retardant. And the flame-retardant filling material is preferably compounded by a plurality of flame-retardant components, and the flame-retardant filling material achieves the best fireproof effect by using the plurality of flame-retardant components together to have a synergistic effect, has an excellent flame-retardant effect, achieves the flame-retardant grade of V0 grade, achieves the oxygen index of more than 55 peak values, and does not generate any harmful substances.
In a preferred embodiment, the refractory filler is one or a combination of mineral silicate, metal oxide glass powder, boric acid and vermiculite powder.
In a preferred embodiment, the other auxiliary agent is one or a combination of several of coupling agent 151, coupling agent 171, hydrogen-containing silicone oil, hydroxyl-containing silicone oil, methyl silicone oil, vinyl silicone oil, stearic acid, and zinc stearate.
The flame-retardant and fire-resistant silicon rubber material disclosed by the invention has the advantages that the formed finished product can keep excellent mechanical property, electrical property and heat-conducting property under a normal state through the combination of the raw materials; the block-shaped isolator is non-combustible after exposed fire or high temperature, extremely isolates a fire source and the temperature, can form a block-shaped isolator at the temperature of over 380 ℃, is very hard, is similar to a ceramic material, and can achieve the effects of fire insulation and temperature insulation.
In addition, the invention also provides a preparation method of the flame-retardant and fire-resistant silicon rubber material, which comprises the following steps:
step S1, mixing the organic silicon rubber in a kneading machine, wherein the mixing temperature is less than or equal to 110 ℃;
s2, adding organic siloxane into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s3, adding the reinforcing filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s4, adding the flame retardant into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s5, adding the refractory filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s6, adding the other auxiliary agents into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s7, mixing all the materials formed in the steps S1-S6, kneading at normal temperature, heating the kneader, sealing a pressure-applying cover when the temperature is 120 ℃, starting vacuumizing for 40-50 minutes, keeping the vacuum degree at not less than-0.7 Mpa, and keeping the materials in the kneader below 175 ℃;
s8, moving the bulk silicone rubber formed by kneading and mixing in the step S7 out of the kneader, and cooling;
s9, carrying out open milling on the cooled bulk silicon rubber on an open mill to obtain sheet silicon rubber;
and S10, filtering the sheet silicon rubber in a filter, filtering to form strips or blocks, and packaging to obtain the finished flame-retardant and fire-resistant silicon rubber material.
The invention also provides the application of the flame-retardant and fire-resistant silicon rubber material, the flame-retardant and fire-resistant silicon rubber material is used for extrusion molding of various pipes and special-shaped products to prepare silicone tubes, special-shaped silicone pieces, silicone plates or silicone sheets, and the functions of insulation, sealing, flame retardance, high and low temperature resistance, fire resistance, acid and alkali resistance, salt mist resistance and the like are achieved; or the flame-retardant and fire-resistant silicone rubber is used for being processed into foaming materials, film materials, hard rubber plates, soft rubber plates, adhesive tapes, conductive materials, heat-conducting materials or self-adhesive tape products through secondary processing.
The following are specific examples.
Example 1:
in the embodiment, the components in parts by weight are as follows: 100 parts by weight of organosilicon rubber; 39 parts by weight of an organosiloxane; 40 parts of reinforcing filler white carbon black and 10 parts of silicon micropowder; 150 parts of flame retardant magnesium hydroxide, 5 parts of piperazine, 100 parts of polyphosphate, 40 parts of hypophosphite and 5 parts of platinum flame retardant; 100 parts of refractory filler mineral silicate, 30 parts of metal oxide glass powder, 100 parts of boric acid and 50 parts of vermiculite powder; the auxiliary agent comprises 1512 parts by weight of coupling agent and 1712 parts by weight of coupling agent; 10 parts by weight of stearic acid.
The raw materials in parts by weight are operated according to the steps S1 to S10 disclosed in the preparation method of the flame-retardant and fire-resistant silicon rubber material, and the steps are as follows:
step S1, mixing 100 parts by weight of organic silicon rubber in a kneader, wherein the mixing temperature is less than or equal to 110 ℃;
s2, adding organic siloxane into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s3, adding the reinforcing filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s4, adding a flame retardant into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s5, adding the refractory filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s6, adding other additives into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s7, mixing the materials formed in the steps S1-S6, kneading at normal temperature, heating the kneading machine, sealing a pressure-applying cover when the temperature is 120 ℃, starting vacuumizing for 40-50 minutes, keeping the vacuum degree at not less than-0.7 Mpa, and keeping the materials in the kneading machine at less than 175 ℃;
s8, moving the bulk silicone rubber formed by kneading and mixing in the step S7 out of the kneader, and cooling;
s9, carrying out open milling on the cooled bulk silicon rubber on an open mill to obtain sheet silicon rubber;
and S10, filtering the sheet silicon rubber in a filter, filtering to form strips or blocks, and packaging to obtain the finished flame-retardant and fire-resistant silicon rubber material.
Wherein, the performance indexes of the finished flame-retardant and fire-resistant silicone rubber material obtained in example 1 are shown in the following table 1.
TABLE 1
Example 2:
in the embodiment, the components in parts by weight are as follows: 100 parts by weight of organosilicon rubber; 15 parts by weight of organosiloxane; 30 parts of reinforcing filler white carbon black and 20 parts of diatomite; 50 parts of flame retardant magnesium hydroxide, 5 parts of piperazine, 10 parts of thiophosphate and 150 parts of hypophosphite; 50 parts of refractory filler mineral silicate, 30 parts of metal oxide glass powder, 60 parts of boric acid and 20 parts of vermiculite powder; the auxiliary agent comprises 1512 parts by weight of coupling agent and 1712 parts by weight of coupling agent; 5 parts by weight of zinc stearate.
And (3) operating the raw materials in parts by weight according to the steps S1-S10 disclosed by the preparation method of the flame-retardant and fire-resistant silicon rubber material to obtain the finished flame-retardant and fire-resistant silicon rubber material.
Wherein, the performance indexes of the finished flame-retardant and fire-resistant silicone rubber material obtained in example 2 are shown in the following table 2.
TABLE 2
Example 3:
in the embodiment, the components in parts by weight are as follows: 100 parts by weight of organosilicon rubber; 20 parts by weight of organic siloxane; 40 parts of reinforcing filler white carbon black; 50 parts of flame retardant aluminum hydroxide, 5 parts of platinum flame retardant and 50 parts of hypophosphite; 30 parts of refractory filler mineral silicate, 30 parts of metal oxide glass powder, 160 parts of boric acid and 10 parts of vermiculite powder; the auxiliary agent comprises 1512 parts by weight and 1712 parts by weight.
And (3) operating the raw materials in parts by weight according to the steps S1-S10 disclosed by the preparation method of the flame-retardant and fire-resistant silicon rubber material to obtain the finished flame-retardant and fire-resistant silicon rubber material.
Wherein, the performance indexes of the finished flame-retardant and fire-resistant silicone rubber material obtained in example 3 are shown in the following table 3.
TABLE 3
Example 4
In the embodiment, the components in parts by weight are as follows: 90 parts by weight of organic silicon rubber; 1 part by weight of organosiloxane; 30 parts of reinforcing filler white carbon black and 10 parts of diatomite; 150 parts of flame retardant aluminum hydroxide, 5 parts of piperazine, 10 parts of thiophosphate, 80 parts of polyphosphate, 30 parts of hypophosphateand 5 parts of platinum flame retardant; 30 parts of refractory filler mineral silicate, 30 parts of metal oxide glass powder, 20 parts of boric acid and 10 parts of vermiculite powder; the assistant is 1511 weight part of coupling agent.
And (3) operating the raw materials in parts by weight according to the steps S1-S10 disclosed by the preparation method of the flame-retardant and fire-resistant silicon rubber material to obtain the finished flame-retardant and fire-resistant silicon rubber material.
Wherein, the performance indexes of the finished flame-retardant and fire-resistant silicone rubber material obtained in example 4 are shown in the following table 4.
TABLE 4
Example 5
In the embodiment, the components in parts by weight are as follows: 50 parts of organic silicon rubber; 28 parts by weight of organosiloxane; 10 parts of reinforcing filler white carbon black and 10 parts of silica micropowder; 35 parts of flame retardant aluminum hydroxide and 15 parts of polyphosphate; 80 parts of refractory filler mineral silicate, 20 parts of metal oxide glass powder, 150 parts of boric acid and 50 parts of vermiculite powder; the assistant comprises 1512 parts by weight of coupling agent, 1712 parts by weight of coupling agent, 10 parts by weight of stearic acid and 5 parts by weight of zinc stearate.
And (3) operating the raw materials in parts by weight according to the steps S1-S10 disclosed by the preparation method of the flame-retardant and fire-resistant silicon rubber material to obtain the finished flame-retardant and fire-resistant silicon rubber material.
Wherein, the performance indexes of the finished flame-retardant and fire-resistant silicone rubber material obtained in example 5 are shown in the following table 5.
TABLE 5
As can be seen from table 1-table 5 above, the flame-retardant and fire-resistant silicone rubber material prepared by the invention has good tensile strength, elongation at break, tear strength, breakdown strength and volume resistivity, and has excellent flame-retardant effect, the flame-retardant grade can not only reach V0 grade, the oxygen index can reach a peak value of more than 55, but also does not generate any harmful substance.
Therefore, when the fireproof door is specifically applied to electric power fire prevention or building fire prevention, the fireproof and fireproof effects can be really achieved, and the safety guarantee coefficient is improved.
In conclusion, the flame-retardant and fire-resistant silicone rubber material disclosed by the invention has the obvious advantages and beneficial effects that:
(1) according to the invention, the organic silicon rubber is selected as a carrier, so that the defects and pollution of inorganic powder in the production and processing process can be improved, and the processability of the product can be improved; the product related by the invention can be made into a required product or shape through different processing technologies, and the application range and the application difficulty of the product are greatly improved. In addition, the organic silicon rubber is selected to be matched with related fillers, so that the effective components of the inorganic fillers can be completely wrapped, and a more effective product is formed.
(2) According to the invention, a specific flame-retardant system is selected, the flame-retardant filler is one or a combination of several of hydroxide, piperazine, thiophosphate, polyphosphate, hypophosphite and platinum flame retardant, the flame-retardant effect is excellent after multiple rounds of verification, the flame-retardant grade can reach V0 grade, the oxygen index can reach a peak value of more than 55, no harmful substance is generated, and the flame-retardant coating is more environment-friendly and safe.
(3) The invention selects the specific refractory filler as one or a combination of several of mineral silicate, metal oxide glass powder, boric acid and vermiculite powder, and the use process and material performance of the product are different from those of the traditional filler; the fire-proof block-shaped insulator is non-combustible after exposed fire or high temperature, extremely isolates a fire source and the temperature, can form a block-shaped insulator at the temperature of over 380 ℃, is very hard, is similar to a ceramic material, and can achieve the effects of fire insulation and temperature insulation.
(4) And the flame-retardant and fire-resistant silicone rubber material in the normal state has excellent rubber characteristics and better heat-conducting property, and can be widely applied to various industries.
For example, the flame-retardant and fire-resistant silicone rubber material can be used for extrusion molding of various pipes and special-shaped products, and can be made into silicone tubes, special-shaped silicone pieces, silicone plates or silicone sheets through extrusion, mold pressing and injection, so that the effects of insulation, sealing, flame retardance, high and low temperature resistance, fire resistance, acid and alkali resistance, salt mist resistance and the like are achieved; the flame-retardant polyurethane foam material can be further processed into products such as foam materials, film materials, hard rubber plates, soft rubber plates, adhesive tapes, conductive materials, heat-conducting materials or self-adhesive tapes by secondary processing, and is applied to different industries, particularly in the fields of flame retardance and fire prevention.
(5) The flame-retardant and fire-resistant silicon rubber material obtained by the invention has excellent performance, and the processing method is extremely simple, so that the industrial processing energy consumption is greatly reduced, and the processing difficulty of the product is greatly improved.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. Furthermore, the technical features mentioned in the different embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. The flame-retardant and fire-resistant silicon rubber material is characterized by comprising the following raw materials in parts by weight:
50-100 parts of organic silicon rubber, 1-39 parts of organic siloxane, 20-50 parts of reinforcing filler, 50-300 parts of flame retardant, 90-300 parts of fire-resistant filler and 1-19 parts of other auxiliary agents.
2. The flame-retardant and fire-resistant silicone rubber material according to claim 1, wherein the silicone rubber is selected from one or more of high-temperature silicone rubber, room-temperature silicone rubber, one-component silicone rubber, and two-component silicone rubber.
3. The flame retardant and fire resistant silicone rubber material of claim 1, wherein the silicone rubber is selected from the group consisting of methyl silicone rubber, methyl vinyl phenyl silicone rubber, nitrile silicone rubber.
4. The flame retardant and fire resistant silicone rubber material of claim 1, wherein the organosiloxane is of the formula: [ R1R2SiO ] m- [ R1R2SiO ] n, wherein the R1 and R2 groups are selected from mercapto (SH), methyl (Me), ethyl (Et), propyl (Pr), phenyl (Ph), vinyl (Vi), hydrogen (H), hydroxyl (OH) or other alkyl (R); n, 0, 1, 2, 3.
5. The flame-retardant and fire-resistant silicone rubber material of claim 1, wherein the reinforcing filler is one or a combination of carbon black, white carbon black, silica micropowder and diatomite.
6. The flame-retardant and fire-resistant silicone rubber material of claim 1, wherein the flame-retardant filler is one or a combination of hydroxide, piperazine, thiophosphate, polyphosphate, hypophosphite and platinum flame retardant.
7. The flame-retardant and fire-resistant silicone rubber material of claim 1, wherein the fire-resistant filler is one or a combination of mineral silicate, metal oxide glass powder, boric acid and vermiculite powder.
8. The flame-retardant and fire-resistant silicone rubber material according to claim 1, wherein the other auxiliary agent is one or more of coupling agent 151, coupling agent 171, hydrogen-containing silicone oil, hydroxyl-based silicone oil, methyl silicone oil, vinyl silicone oil, stearic acid, and zinc stearate.
9. A method for preparing a flame retardant and fire resistant silicone rubber material according to any one of claims 1-8, comprising the steps of:
s1, mixing the organic silicon rubber in a kneading machine, wherein the mixing temperature is less than or equal to 110 ℃;
s2, adding organic siloxane into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s3, adding the reinforcing filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s4, adding the flame retardant into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s5, adding the refractory filler into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s6, adding the other auxiliary agents into a kneading machine, uniformly mixing, and kneading at normal temperature for 10-20 minutes to form a bulk material;
s7, mixing the materials formed in the steps S1-S6, kneading at normal temperature, heating the kneading machine, sealing a pressure-applying cover when the temperature is 120 ℃, vacuumizing for 40-50 minutes until the vacuum degree is more than or equal to-0.7 Mpa, and keeping the materials in the kneading machine to be lower than 175 ℃;
s8, moving the bulk silicone rubber formed by kneading and mixing in the step S7 out of the kneader, and cooling;
s9, carrying out open milling on the cooled bulk silicon rubber on an open mill to obtain sheet silicon rubber;
s10, the sheet silicon rubber is placed into a filter for filtering, and is filtered into strips or blocks for packaging treatment, so that the finished flame-retardant and fire-resistant silicon rubber material is obtained.
10. The use of the flame-retardant and fire-resistant silicone rubber material according to any one of claims 1 to 8, wherein the flame-retardant and fire-resistant silicone rubber material is used for extrusion molding of various pipes and shaped products to form silicone tubes, silicone profiles, silicone plates or silicone sheets; or the flame-retardant and fire-resistant silicone rubber is used for being processed into foaming materials, film materials, hard rubber plates, soft rubber plates, adhesive tapes, conductive materials, heat-conducting materials or self-adhesive tape products through secondary processing.
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