CN101564923A - Fireproof silicone rubber composite material and preparation method thereof - Google Patents
Fireproof silicone rubber composite material and preparation method thereof Download PDFInfo
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- CN101564923A CN101564923A CNA2009100622545A CN200910062254A CN101564923A CN 101564923 A CN101564923 A CN 101564923A CN A2009100622545 A CNA2009100622545 A CN A2009100622545A CN 200910062254 A CN200910062254 A CN 200910062254A CN 101564923 A CN101564923 A CN 101564923A
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Abstract
The invention relates to a fireproof silicone rubber composite material and a preparation method thereof and is applicable to the firewall of an airplane, the internal fire prevention equipment of other high-speed transport vehicles, military related equipment and the like. The fireproof silicone rubber composite material is characterized in that: the fireproof silicone rubber composite material is obtained by the hot-pressing and composition of a silicone rubber fireproof isolation layer (1), a silicone rubber flame-retardant cooling layer (2), a silicone rubber ablation-resistant layer (3) and a silicone rubber substance layer (4); and the silicone rubber fireproof isolation layer, the silicone rubber flame-retardant cooling layer, the silicone rubber ablation-resistant layer and the silicone rubber substance layer are arranged from outside to inside in sequence. The fireproof silicone rubber composite material has the advantages of good fireproof effect and good heat insulation effect.
Description
Technical field
The present invention relates to a kind of fireproof silicone rubber composite material and preparation method, be applicable to the aircraft fire protection wall, the interior fire protection equipment of other high speed means of transport and military relevant device etc.
Background technology
Because of the requirement of aircraft particular surroundings need be set up fire wall, this metal plate structure that to be a kind of district on fire that aircraft is potential isolate with the cabin of closing on.Fireproof silicone rubber is its vitals, except that the flame-retardant nature that requires silicon rubber, material has also been proposed the requirement of higher anti-flame impingement.The requirement material can form the barrier layer of potteryization under the flame of very high temperature, to protect back part not to be subjected to the heat-flash amount and to damage.The external correlative study report of the research of fireproof silicone rubber is more.Mention for No. 5047449 as United States Patent (USP) and to use silicon rubber, the composite that metal oxide borax and mica or vermiculite are formed.The fire prevention dilatant that uses silicon rubber to be formed by combining in the United States Patent (USP) No. 5508321 and No. 4694030 in conjunction with expanded graphite silicate.The RTV2757 thixotropic silicon rubber foam layer of U.S. GE company development has good heat-resisting and heat-proof quality.After being coated with skim on the cardboard, place 60s under 2780 ℃ of flames, back temperature only is raised to 29 ℃ by 22 ℃, and protected fresh flower is not withered.
The Khristopher of Dow Corning Corporation has added 7%～20% wollastonite and reinforced filling of 10%～60% etc. in liquid silastic, make test piece calcination 15min under the flame of 1093 ℃ of Bunsen burners of thick 0.635cm, and the back side is not burnt or burnt.A kind of aircraft engine light fire-proof layer that is used for of John Meaney design.Be coated with the ground floor organic silicon sealant at metal part surface, when not vulcanizing, spread ceramic fiber fabric in the above, and then be coated with second layer organic silicon sealant.Organic silicon sealant has used Dow Corning 902006 space sealing agent, and ceramic fiber cloth is used the product of the 3M Nextel of company 312 series.This thermal protection shield 15min under 1093 ℃ of flames does not burn, and has lightweight, anti-solvent, and oil resistant and anti-water wash away the advantage with anti-vibration.But exist its product thicker, than problems such as great and fire resistance period are short.
Summary of the invention
The object of the present invention is to provide fireproof silicone rubber composite material of a kind of fire prevention, good heat-insulation effect and preparation method thereof.
To achieve these goals, technical scheme of the present invention is: fireproof silicone rubber composite material, it is characterized in that it is composited by silicone rubber fireproof separation layer 1, silicon rubber flame-retardant cooling layer 2, the anti-ablation layer 3 of silicon rubber, 4 hot pressing of bulk silicon rubber layer, silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber, bulk silicon rubber layer are arranged from outside to inside successively.
The preparation method of above-mentioned fireproof silicone rubber composite material is characterized in that it comprises the steps:
1. the half-finished preparation of silicone rubber fireproof separation layer:
The material of silicone rubber fireproof separation layer is formed by matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent feedstock production, and the shared parts by weight of each raw material are: 100 parts of matrixes, fire-proof packing 100-300 part, reinforcing material 50-100 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, bonding agent 1-100 part; Described matrix is a dimethyl silicone polymer.
Described dimethyl silicone polymer has the linear macromolecule structure, wraps characteristics capacious.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 0.5-99%, imvite 0.5-99%, expanded graphite 0.5-99%.
Described reinforcing material is any one or any two kinds mixing in glass fibre, the carbon fiber, and any two kinds is any proportioning when mixing.
(1) carbon fiber comprises: the following chopped carbon fiber material of 70mm, above long carbon fiber material of 70mm and carbon fiber felt etc.
(2) glass fibre comprises: short fiber (70mm is following), the short fiber (70mm is following) of quartz fibre, other special glass fibres (70mm is following) of the short fiber (70mm is following) of the short fiber (70mm is following) of alkali fiber, middle alkali fiber, no alkali fiber are arranged, long fibre (more than the 70mm) and glass felt thereof etc.
Described bonding agent is a macromolecule phenolic resins, and described macromolecule phenolic resins is thermosetting phenolic resin and phenol-formaldehyde resin modified (boron modified phenolic resin, dimethylbenzene phenol-formaldehyde resin modified).
(Layered Double Hydrotalcides is the anion stratiform functional inorganic materials that a class has layer structure LDHs) to described hydrotalcite, but has chemical composition and the particular structure and the performance of modulation.Its typical magnalium hydrotalcite chemical formula is: [Mg
6Al
2(OH)
16CO
3] 4H
2O, the hydrotalcite technology quality index:
(1) proterties: white powder; (2) whiteness: L 〉=90%; (3) average grain diameter 15 μ m; (4) specific area: 5-20m2/g; (5) proportion: 1.46g/cm3; (6) pH value (10% suspension): 7-9; (7) magnesia: 32-40%; (8) aluminium oxide: 14-18%; (9) moisture content≤1.0%; (10) oil factor: 0.31ml/g; (11) attached water＜5%; (12) burning decrement: 36-44%.
Described imvite is that nano imvite is that smectite clay (comprising that calcium base, sodium base, Sodium base, magnesium base cover clay) is through the dispersion of delaminating, purify remodeling, super-fine classified, special organic being composited, average wafer thickness is less than 25nm, and smectite content is greater than 95% (quality).
Described expanded graphite is natural flaky graphite for expansiveness graphite, Petrocarbon is an electrographite, the graphite products such as electrographite of coke system, the graphite or the aforementioned wherein mixture of two or more at least graphite of (greater than the 200 ℃) expansion characteristics that is heated of process interlayer management.
Described crosslinking agent is any one or any mixing more than two kinds in tetramethoxy-silicane, tetraethoxysilane, tetraethoxysilane hydrolysate, MTES, the MTMS, and any is any proportioning when mixing more than two kinds.
Described catalyst is the mixing of any one or two kinds in dibutyl tin laurate, the dibutyltin diacetate, and two kinds when mixing, the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9 or 2: 8.
The half-finished preparation method of silicone rubber fireproof separation layer, it comprises the steps:
1) by the shared parts by weight of each raw material is: 100 parts of matrixes, fire-proof packing 100-300 part, reinforcing material 50-100 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, bonding agent 1-100 part; Choose matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent raw material; Described matrix is a dimethyl silicone polymer;
2) dimethyl silicone polymer and reinforcing material, fire-proof packing are mixed, add bonding agent, crosslinking agent and catalyst then, after mixed at room temperature, put into and touch tool, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the silicone rubber fireproof separation layer semi-finished product of 0.5-2mm.
2. the half-finished preparation of silicon rubber flame-retardant cooling layer:
The material of silicon rubber flame-retardant cooling layer is formed by dimethyl silicone polymer (as matrix material), fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins (as bonding agent) feedstock production, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, fire-proof packing 100-300 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, macromolecule phenolic resins 1-100 part.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 0.5-99%, imvite 0.5-99%, expanded graphite 0.5-99%.
Described crosslinking agent is any one or any mixing more than two kinds in tetramethoxy-silicane, tetraethoxysilane, tetraethoxysilane hydrolysate, MTES, the MTMS, and any is any proportioning when mixing more than two kinds;
Described catalyst is the mixing of any one or two kinds in dibutyl tin laurate, the dibutyltin diacetate, and two kinds when mixing, the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9 or 2: 8.
The half-finished preparation of silicon rubber flame-retardant cooling layer: 1) be by the shared parts by weight of each raw material: 100 parts of dimethyl silicone polymers, fire-proof packing 100-300 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, macromolecule phenolic resins 1-100 part, choose dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins;
2) in room temperature dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins are mixed, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the silicon rubber flame-retardant cooling layer semi-finished product of 0.5-2mm.
3. the half-finished preparation of the anti-ablation layer of silicon rubber:
The material of the anti-ablation layer of silicon rubber is made up of panel, intermediate course and base plate, and intermediate course is between panel and base plate;
The raw material identical (preparing also identical) that panel, base plate are formed, form by dimethyl silicone polymer (as matrix material), telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements, crosslinking agent 3-8 part, catalyst 0.2-0.4 part;
The material of intermediate course is made up of dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 100～300 parts of imvites, 1～100 part in macromolecule phenolic resins, crosslinking agent 3-8 part, catalyst 0.2-0.4 part;
Described telescopic braid reinforcement is the mixing of any one or two kinds in telescopic braided glass fibre, the telescopic weaving carbon fiber, and two kinds is any proportioning when mixing;
Described crosslinking agent is any one or any mixing more than two kinds in tetramethoxy-silicane, tetraethoxysilane, tetraethoxysilane hydrolysate, MTES, the MTMS, and any is any proportioning when mixing more than two kinds;
Described catalyst is the mixing of any one or two kinds in dibutyl tin laurate, the dibutyltin diacetate, and two kinds when mixing, the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9 or 2: 8.
The preparation of panel (base plate): 1) be: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, crosslinking agent 3-8 part, catalyst 0.2-0.4 part is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, obtains the panel that thickness is 0.5-1mm (base plate);
The preparation of intermediate course: 1) be: 100 parts of dimethyl silicone polymers, 100～300 parts of imvites by the shared parts by weight of each raw material, 1～100 part in macromolecule phenolic resins, crosslinking agent 3-8 part, catalyst 0.2-0.4 part are chosen dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst mix, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, obtains the intermediate course that thickness is 0.5-2mm;
The half-finished preparation of the anti-ablation layer of silicon rubber: panel, intermediate course and base plate layering is superimposed successively in the laminating machine mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the anti-ablation layer semi-finished product of silicon rubber of 1-4mm.
4. the half-finished preparation of bulk silicon rubber layer:
The material of bulk silicon rubber layer comprises dimethyl silicone polymer, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature, and pressure is 6-8MPa, obtaining thickness is the bulk silicon rubber layer semi-finished product of 0.5-1mm;
The material of described bulk silicon rubber layer comprises liquid end carboxyl butyronitrile rubber or liquid end amido butyronitrile rubber; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 1～20 part of liquid end carboxyl butyronitrile rubber or liquid end amido butyronitrile rubber are in mixed at room temperature.Add other high elastic rubber and carry out modification, improve the adhesive property of itself and metal base plate.
5. the preparation of fireproof silicone rubber composite material:
Above-mentioned silicone rubber fireproof separation layer semi-finished product, a silicon rubber flame-retardant cooling layer semi-finished product, the anti-ablation layer semi-finished product of silicon rubber, the layering of bulk silicon rubber layer semi-finished product are superimposed successively in the laminating machine mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is 3-8mm fireproof silicone rubber composite material (film).
6. the performance of fireproof silicone rubber composite material
(1) non-volatile content content (%): 〉=97;
(2) proportion: 1-1.5;
(3) fire prevention test (1093 ℃ * 15min) after, film huyashi-chuuka (cold chinese-style noodles) (bulk silicon rubber layer) temperature is lower than 400 ℃.
The invention has the beneficial effects as follows:
1), silicone rubber fireproof separation layer of the present invention can produce the flammable gaseous state thing that oxygen in the diluent air and polymer unwinds generate in heat absorption, and can emit the protective gas blocking oxygen, plays flame retardant effect, this material also has the cigarette characteristic of pressing down.When this material is met naked light, the rapid carbonization of phenolic resins on surface and expanded graphite and imvite form the multi-layer fireproofing carbon-coating, rely on glass fibre or carbon fiber network to form tight thermal insulation layer again, can completely cut off or weaken heat transmission, and after hydrotalcite is heated, discharge water and carbon dioxide, make material not burn, be not fuming, do not produce toxic gas, add that the proportion of this material is lighter.Cut off the burn cycle that silicon rubber, heat and oxygen three elements constitute, the present invention has good fire retardant effect.
2) silicon rubber flame-retardant cooling layer, when meeting with flame, material can produce the flammable gaseous state thing that oxygen in the diluent air and polymer unwinds generate in heat absorption, and can emit the protective gas blocking oxygen, plays fire-retardant cooling-down effect.
3) the anti-ablation layer of silicon rubber, it can resist the ablation of flame, protection bulk silicon rubber.
4) when meeting fire, silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber can form the multi-layer fireproofing barrier film, have to completely cut off and to weaken heat transmission, prevent that flame from burning away.The bulk silicon rubber layer can combine with metal base plate, does not produce or seldom produce the dense smoke or the toxic gas of emitting when burning.Be suitable for the fire wall fireproof silicone rubber material of the requirement of making the aircraft particular surroundings.Also can make rapid (aircraft, steamer cabin, railway carriage, subway carriage, cage etc.), interior of building fire proofing material, military equipment, fire-fighting instrument etc.
Description of drawings
Fig. 1 is the schematic diagram that fireproof silicone rubber composite material of the present invention carries out flame assay.
The specific embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
Fireproof silicone rubber composite material, it is composited by silicone rubber fireproof separation layer 1, silicon rubber flame-retardant cooling layer 2, the anti-ablation layer 3 of silicon rubber, 4 hot pressing of bulk silicon rubber layer, and silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber, bulk silicon rubber layer are arranged from outside to inside successively.
The preparation method of above-mentioned fireproof silicone rubber composite material, it comprises the steps:
1. the half-finished preparation of silicone rubber fireproof separation layer:
The material of silicone rubber fireproof separation layer is formed by matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent feedstock production, and the shared parts by weight of each raw material are: 100 parts of matrixes, 100 parts of fire-proof packings, 50 parts of reinforcing materials, 3 parts of crosslinking agents, 0.2 part of catalyst, 1 part of bonding agent; Described matrix is a dimethyl silicone polymer.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 0.5%, imvite 0.5%, expanded graphite 99%.
Described reinforcing material is a glass fibre; Glass fibre can adopt: the short fiber of no alkali fiber (70mm is following).
Described bonding agent is a macromolecule phenolic resins, and described macromolecule phenolic resins is thermosetting phenolic resin.Described crosslinking agent is a tetramethoxy-silicane.Described catalyst is a dibutyl tin laurate.
The half-finished preparation method of silicone rubber fireproof separation layer, it comprises the steps:
1) by the shared parts by weight of each raw material is: 100 parts of matrixes, 100 parts of fire-proof packings, 50 parts of reinforcing materials, 3 parts of crosslinking agents, 0.2 part of catalyst, 1 part of bonding agent; Choose matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent raw material; Described matrix is a dimethyl silicone polymer;
2) dimethyl silicone polymer and reinforcing material, fire-proof packing are mixed, add bonding agent, crosslinking agent and catalyst then, after mixed at room temperature, put into and touch tool, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 6MPa, and obtaining thickness is the silicone rubber fireproof separation layer semi-finished product of 0.5mm.
2. the half-finished preparation of silicon rubber flame-retardant cooling layer:
The material of silicon rubber flame-retardant cooling layer is formed by dimethyl silicone polymer (as matrix material), fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins (as bonding agent) feedstock production, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 100 parts of fire-proof packings, 3 parts of crosslinking agents, 0.2 part of catalyst, 1 part in macromolecule phenolic resins.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 0.5%, imvite 0.5%, expanded graphite 99%.
Described crosslinking agent is a tetramethoxy-silicane.Described catalyst is a dibutyl tin laurate.
The half-finished preparation of silicon rubber flame-retardant cooling layer: 1) be by the shared parts by weight of each raw material: 100 parts of dimethyl silicone polymers, 100 parts of fire-proof packings, 3 parts of crosslinking agents, 0.2 part of catalyst, 1 part in macromolecule phenolic resins, choose dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins;
2) in room temperature dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins are mixed, put into mould, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 6MPa, obtaining thickness is the silicon rubber flame-retardant cooling layer semi-finished product of 0.5mm.
3. the half-finished preparation of the anti-ablation layer of silicon rubber:
The material of the anti-ablation layer of silicon rubber is made up of panel, intermediate course and base plate, and intermediate course is between panel and base plate;
The raw material identical (preparing also identical) that panel, base plate are formed, form by dimethyl silicone polymer (as matrix material), telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 50 parts of telescopic braid reinforcements, 3 parts of crosslinking agents, 0.2 part of catalyst;
The material of intermediate course is made up of dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 100 parts of imvites, 1 part in macromolecule phenolic resins, 3 parts of crosslinking agents, 0.2 part of catalyst;
Described telescopic braid reinforcement is telescopic braided glass fibre.Described crosslinking agent is a tetramethoxy-silicane.Described catalyst is a dibutyl tin laurate.
The preparation of panel (base plate): 1) be: 100 parts of dimethyl silicone polymers, 50 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, 3 parts of crosslinking agents, 0.2 part of catalyst is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 6MPa, obtains the panel that thickness is 0.5mm (base plate);
The preparation of intermediate course: 1) be: 100 parts of dimethyl silicone polymers, 100 parts of imvites by the shared parts by weight of each raw material, 1 part in macromolecule phenolic resins, 3 parts of crosslinking agents, 0.2 part of catalyst are chosen dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst mix, put into mould, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 6MPa, obtains the intermediate course that thickness is 0.5mm;
The half-finished preparation of the anti-ablation layer of silicon rubber: panel, intermediate course and base plate layering is superimposed successively in the laminating machine mould, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 6MPa, and obtaining thickness is the anti-ablation layer semi-finished product of silicon rubber of 1.5mm.
4. the half-finished preparation of bulk silicon rubber layer:
The material of bulk silicon rubber layer comprises dimethyl silicone polymer, 0.2 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature, and pressure is 6MPa, obtaining thickness is the bulk silicon rubber layer semi-finished product of 0.5mm.
5. the preparation of fireproof silicone rubber composite material:
Above-mentioned silicone rubber fireproof separation layer semi-finished product, a silicon rubber flame-retardant cooling layer semi-finished product, the anti-ablation layer semi-finished product of silicon rubber, the layering of bulk silicon rubber layer semi-finished product are superimposed successively in the laminating machine mould, plus-pressure moulding in 0.2 hour under 165 ± 5 ℃ of temperature then, pressure is 6MPa, and obtaining thickness is 2.5mm fireproof silicone rubber composite material (film).
The fireproof silicone rubber composite material of preparation is carried out flame assay, in 1100 ± 50 ℃ of flame torch firing 15min, the ablation situation of observation sample.Outside (silicone rubber fireproof separation layer) is burning not, and inner face (huyashi-chuuka (cold chinese-style noodles), bulk silicon rubber layer) temperature is lower than 400 ℃.Fire prevention of the present invention, good heat-insulation effect are described.
Embodiment 2:
Fireproof silicone rubber composite material, it is composited by silicone rubber fireproof separation layer 1, silicon rubber flame-retardant cooling layer 2, the anti-ablation layer 3 of silicon rubber, 4 hot pressing of bulk silicon rubber layer, and silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber, bulk silicon rubber layer are arranged from outside to inside successively.
The preparation method of above-mentioned fireproof silicone rubber composite material, it comprises the steps:
1. the half-finished preparation of silicone rubber fireproof separation layer:
The material of silicone rubber fireproof separation layer is formed by matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent feedstock production, and the shared parts by weight of each raw material are: 100 parts of matrixes, 200 parts of fire-proof packings, 70 parts of reinforcing materials, 5 parts of crosslinking agents, 0.3 part of catalyst, 50 parts of bonding agents; Described matrix is a dimethyl silicone polymer.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 30%, imvite 30%, expanded graphite 40%.
Described reinforcing material is glass fibre and carbon fiber, and carbon fiber is the following chopped carbon fiber material of 70mm, and glass fibre is the short fiber (70mm is following) of alkali fiber, and quality respectively accounts for 1/2.
Described bonding agent is a macromolecule phenolic resins, and described macromolecule phenolic resins is thermosetting phenolic resin.
Described crosslinking agent is a tetraethoxysilane.Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9.
The half-finished preparation method of silicone rubber fireproof separation layer, it comprises the steps:
1) by the shared parts by weight of each raw material is: 100 parts of matrixes, 200 parts of fire-proof packings, 70 parts of reinforcing materials, 5 parts of crosslinking agents, 0.3 part of catalyst, 50 parts of bonding agents; Choose matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent raw material; Described matrix is a dimethyl silicone polymer;
2) dimethyl silicone polymer and reinforcing material, fire-proof packing are mixed, add bonding agent, crosslinking agent and catalyst then, after mixed at room temperature, put into and touch tool, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, and obtaining thickness is the silicone rubber fireproof separation layer semi-finished product of 1mm.
2. the half-finished preparation of silicon rubber flame-retardant cooling layer:
The material of silicon rubber flame-retardant cooling layer is formed by dimethyl silicone polymer (as matrix material), fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins (as bonding agent) feedstock production, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 200 parts of fire-proof packings, 5 parts of crosslinking agents, 0.3 part of catalyst, 50 parts in macromolecule phenolic resins.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 30%, imvite 30%, expanded graphite 40%.
Described crosslinking agent is a tetraethoxysilane.
Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9.
The half-finished preparation of silicon rubber flame-retardant cooling layer: 1) be by the shared parts by weight of each raw material: 100 parts of dimethyl silicone polymers, 200 parts of fire-proof packings, 5 parts of crosslinking agents, 0.3 part of catalyst, 50 parts in macromolecule phenolic resins, choose dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins;
2) in room temperature dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins are mixed, put into mould, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, obtaining thickness is the silicon rubber flame-retardant cooling layer semi-finished product of 1mm.
3. the half-finished preparation of the anti-ablation layer of silicon rubber:
The material of the anti-ablation layer of silicon rubber is made up of panel, intermediate course and base plate, and intermediate course is between panel and base plate;
The raw material identical (preparing also identical) that panel, base plate are formed, form by dimethyl silicone polymer (as matrix material), telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 70 parts of telescopic braid reinforcements, 5 parts of crosslinking agents, 0.3 part of catalyst;
The material of intermediate course is made up of dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 200 parts of imvites, 50 parts in macromolecule phenolic resins, 5 parts of crosslinking agents, 0.3 part of catalyst;
Described telescopic braid reinforcement is telescopic braided glass fibre.Described crosslinking agent is a tetraethoxysilane.
Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9.
The preparation of panel (base plate): 1) be: 100 parts of dimethyl silicone polymers, 70 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, 5 parts of crosslinking agents, 0.3 part of catalyst is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, obtains the panel that thickness is 0.5mm (base plate);
The preparation of intermediate course: 1) be: 100 parts of dimethyl silicone polymers, 200 parts of imvites by the shared parts by weight of each raw material, 50 parts in macromolecule phenolic resins, 5 parts of crosslinking agents, 0.3 part of catalyst are chosen dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst mix, put into mould, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, obtains the intermediate course that thickness is 0.5mm;
The half-finished preparation of the anti-ablation layer of silicon rubber: panel, intermediate course and base plate layering is superimposed successively in the laminating machine mould, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, and obtaining thickness is the anti-ablation layer semi-finished product of silicon rubber of 1.5mm.
4. the half-finished preparation of bulk silicon rubber layer:
The material of bulk silicon rubber layer is a dimethyl silicone polymer, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature, and pressure is 7MPa, obtaining thickness is the bulk silicon rubber layer semi-finished product of 1mm;
5. the preparation of fireproof silicone rubber composite material:
Above-mentioned silicone rubber fireproof separation layer semi-finished product, a silicon rubber flame-retardant cooling layer semi-finished product, the anti-ablation layer semi-finished product of silicon rubber, the layering of bulk silicon rubber layer semi-finished product are superimposed successively in the laminating machine mould, 1 hour aftershaping of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 7MPa, and obtaining thickness is 4mm fireproof silicone rubber composite material (film).
Carry out flame assay: calcination 15min under the flame of 1093 ℃ of Bunsen burners (label 5 is Bunsen burner among Fig. 1), outside (silicone rubber fireproof separation layer 1) difficult to burn, inner face (huyashi-chuuka (cold chinese-style noodles), bulk silicon rubber layer) temperature is lower than 400 ℃.Fire prevention of the present invention, good heat-insulation effect are described.
Embodiment 3:
Fireproof silicone rubber composite material, it is composited by silicone rubber fireproof separation layer 1, silicon rubber flame-retardant cooling layer 2, the anti-ablation layer 3 of silicon rubber, 4 hot pressing of bulk silicon rubber layer, and silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber, bulk silicon rubber layer are arranged from outside to inside successively.
The preparation method of above-mentioned fireproof silicone rubber composite material, it comprises the steps:
1. the half-finished preparation of silicone rubber fireproof separation layer:
The material of silicone rubber fireproof separation layer is formed by matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent feedstock production, and the shared parts by weight of each raw material are: 100 parts of matrixes, 300 parts of fire-proof packings, 100 parts of reinforcing materials, 8 parts of crosslinking agents, 0.4 part of catalyst, 100 parts of bonding agents; Described matrix is a dimethyl silicone polymer.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 99%, imvite 0.5%, expanded graphite 0.5%.
Described reinforcing material is the glass fibre [short fiber of middle alkali fiber (70mm is following).
Described bonding agent is a macromolecule phenolic resins, and described macromolecule phenolic resins is phenol-formaldehyde resin modified (boron modified phenolic resin, dimethylbenzene phenol-formaldehyde resin modified).
Described crosslinking agent is a MTES.
Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the mass ratio of dibutyltin diacetate and dibutyl tin laurate is 2: 8.
The half-finished preparation method of silicone rubber fireproof separation layer, it comprises the steps:
1) by the shared parts by weight of each raw material is: 100 parts of matrixes, 300 parts of fire-proof packings, 100 parts of reinforcing materials, 8 parts of crosslinking agents, 0.4 part of catalyst, 100 parts of bonding agents; Choose matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent raw material; Described matrix is a dimethyl silicone polymer;
2) dimethyl silicone polymer and reinforcing material, fire-proof packing are mixed, add bonding agent, crosslinking agent and catalyst then, after mixed at room temperature, put into and touch tool, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, and obtaining thickness is the silicone rubber fireproof separation layer semi-finished product of 2mm.
2. the half-finished preparation of silicon rubber flame-retardant cooling layer:
The material of silicon rubber flame-retardant cooling layer is formed by dimethyl silicone polymer (as matrix material), fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins (as bonding agent) feedstock production, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 300 parts of fire-proof packings, 8 parts of crosslinking agents, 0.4 part of catalyst, 100 parts in macromolecule phenolic resins.
Described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 99%, imvite 0.5%, expanded graphite 0.5%.
Described crosslinking agent is a MTES.
Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the mass ratio of dibutyltin diacetate and dibutyl tin laurate is 2: 8.
The half-finished preparation of silicon rubber flame-retardant cooling layer: 1) be by the shared parts by weight of each raw material: 100 parts of dimethyl silicone polymers, 300 parts of fire-proof packings, 8 parts of crosslinking agents, 0.4 part of catalyst, 100 parts in macromolecule phenolic resins, choose dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins;
2) in room temperature dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins are mixed, put into mould, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, obtaining thickness is the silicon rubber flame-retardant cooling layer semi-finished product of 2mm.
3. the half-finished preparation of the anti-ablation layer of silicon rubber:
The material of the anti-ablation layer of silicon rubber is made up of panel, intermediate course and base plate, and intermediate course is between panel and base plate;
The raw material identical (preparing also identical) that panel, base plate are formed, form by dimethyl silicone polymer (as matrix material), telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 100 parts of telescopic braid reinforcements, 8 parts of crosslinking agents, 0.4 part of catalyst;
The material of intermediate course is made up of dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 300 parts of imvites, 100 parts in macromolecule phenolic resins, 8 parts of crosslinking agents, 0.4 part of catalyst;
Described telescopic braid reinforcement is telescopic weaving carbon fiber.
Described crosslinking agent is a MTES.
Described catalyst is dibutyl tin laurate and dibutyltin diacetate, and the mass ratio of dibutyltin diacetate and dibutyl tin laurate is 2: 8.
The preparation of panel (base plate): 1) be: 100 parts of dimethyl silicone polymers, 100 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, 8 parts of crosslinking agents, 0.4 part of catalyst is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, obtains the panel that thickness is 1mm (base plate);
The preparation of intermediate course: 1) be: 100 parts of dimethyl silicone polymers, 300 parts of imvites by the shared parts by weight of each raw material, 100 parts in macromolecule phenolic resins, 8 parts of crosslinking agents, 0.4 part of catalyst are chosen dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; 2) after room temperature is with dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst mix, put into mould, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, obtains the intermediate course that thickness is 2mm;
The half-finished preparation of the anti-ablation layer of silicon rubber: panel, intermediate course and base plate layering is superimposed successively in the laminating machine mould, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, and obtaining thickness is the anti-ablation layer semi-finished product of silicon rubber of 4mm.
4. the half-finished preparation of bulk silicon rubber layer:
The material of bulk silicon rubber layer comprises dimethyl silicone polymer, liquid end carboxyl butyronitrile rubber, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 20 parts of liquid end carboxyl butyronitrile rubbers; 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature, pressure is 8MPa, obtaining thickness is the bulk silicon rubber layer semi-finished product of 1mm;
5. the preparation of fireproof silicone rubber composite material:
Above-mentioned silicone rubber fireproof separation layer semi-finished product, a silicon rubber flame-retardant cooling layer semi-finished product, the anti-ablation layer semi-finished product of silicon rubber, the layering of bulk silicon rubber layer semi-finished product are superimposed successively in the laminating machine mould, 2 hours aftershapings of plus-pressure under 165 ± 5 ℃ of temperature then, pressure is 8MPa, and obtaining thickness is 8mm fireproof silicone rubber composite material (film).
The fireproof silicone rubber composite material of preparation is carried out flame assay, in 1100 ± 50 ℃ of flame torch firing 15min, the ablation situation of observation sample.Outside (silicone rubber fireproof separation layer) difficult to burn, inner face (huyashi-chuuka (cold chinese-style noodles), bulk silicon rubber layer) temperature is lower than 400 ℃.Fire prevention of the present invention, good heat-insulation effect are described.
The bound of each raw material of the present invention, interval value, and the bound of technological parameter (as temperature, time etc.), interval value can both realize the present invention, do not enumerate embodiment one by one at this.
Claims (12)
1. fireproof silicone rubber composite material, it is characterized in that it is composited by silicone rubber fireproof separation layer (1), silicon rubber flame-retardant cooling layer (2), the anti-ablation layer of silicon rubber (3), bulk silicon rubber layer (4) hot pressing, silicone rubber fireproof separation layer, silicon rubber flame-retardant cooling layer, the anti-ablation layer of silicon rubber, bulk silicon rubber layer are arranged from outside to inside successively.
2. fireproof silicone rubber composite material according to claim 1, it is characterized in that: the material of silicone rubber fireproof separation layer is formed by matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent feedstock production, and the shared parts by weight of each raw material are: 100 parts of matrixes, fire-proof packing 100-300 part, reinforcing material 50-100 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, bonding agent 1-100 part; Described matrix is a dimethyl silicone polymer.
3. fireproof silicone rubber composite material according to claim 1, it is characterized in that: the material of silicon rubber flame-retardant cooling layer is formed by dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins feedstock production, and the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, fire-proof packing 100-300 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, macromolecule phenolic resins 1-100 part.
4. fireproof silicone rubber composite material according to claim 1 is characterized in that: the material of the anti-ablation layer of silicon rubber is made up of panel, intermediate course and base plate, and intermediate course is between panel and base plate;
The material of panel is made up of dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements, crosslinking agent 3-8 part, catalyst 0.2-0.4 part;
The material of base plate is made up of dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst, the shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements, crosslinking agent 3-8 part, catalyst 0.2-0.4 part;
The material of intermediate course is made up of dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 100～300 parts of imvites, 1～100 part in macromolecule phenolic resins, crosslinking agent 3-8 part, catalyst 0.2-0.4 part.
5. fireproof silicone rubber composite material according to claim 1 is characterized in that: the material of bulk silicon rubber layer comprises dimethyl silicone polymer.
6. according to claim 2 or 3 described fireproof silicone rubber composite materials, it is characterized in that: described fire-proof packing is hydrotalcite, imvite and expanded graphite, and the percetage by weight of hydrotalcite, imvite, the shared fire-proof packing of expanded graphite is: hydrotalcite 0.5-99%, imvite 0.5-99%, expanded graphite 0.5-99%.
7. fireproof silicone rubber composite material according to claim 2 is characterized in that: described reinforcing material is any one or any two kinds mixing in glass fibre, the carbon fiber, and any two kinds is any proportioning when mixing.
8. according to claim 2,3 or 4 described fireproof silicone rubber composite materials, it is characterized in that: described crosslinking agent is any one or any mixing more than two kinds in tetramethoxy-silicane, tetraethoxysilane, tetraethoxysilane hydrolysate, MTES, the MTMS, and any is any proportioning when mixing more than two kinds.
9. according to claim 2,3 or 4 described fireproof silicone rubber composite materials, it is characterized in that: described catalyst is the mixing of any one or two kinds in dibutyl tin laurate, the dibutyltin diacetate, during two kinds of mixing, the quality proportioning of dibutyltin diacetate and dibutyl tin laurate is 1: 9 or 2: 8.
10. fireproof silicone rubber composite material according to claim 4, it is characterized in that: described telescopic braid reinforcement is the mixing of any one or two kinds in telescopic braided glass fibre, the telescopic weaving carbon fiber, and two kinds is any proportioning when mixing.
11. fireproof silicone rubber composite material according to claim 5 is characterized in that: the material of described bulk silicon rubber layer comprises liquid end carboxyl butyronitrile rubber or liquid end amido butyronitrile rubber; The shared parts by weight of each raw material are: 100 parts of dimethyl silicone polymers, 1～20 part of liquid end carboxyl butyronitrile rubber or liquid end amido butyronitrile rubber.
12. the preparation method of fireproof silicone rubber composite material as claimed in claim 1 is characterized in that it comprises the steps:
1). the half-finished preparation of silicone rubber fireproof separation layer:
1. by the shared parts by weight of each raw material be: 100 parts of matrixes, fire-proof packing 100-300 part, reinforcing material 50-100 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, bonding agent 1-100 part; Choose matrix, fire-proof packing, reinforcing material, crosslinking agent, catalyst and bonding agent raw material; Described matrix is a dimethyl silicone polymer;
2. dimethyl silicone polymer and reinforcing material, fire-proof packing are mixed, add bonding agent, crosslinking agent and catalyst then, after mixed at room temperature, put into and touch tool, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the silicone rubber fireproof separation layer semi-finished product of 0.5-2mm;
2). the half-finished preparation of silicon rubber flame-retardant cooling layer:
1. by the shared parts by weight of each raw material be: 100 parts of dimethyl silicone polymers, fire-proof packing 100-300 part, crosslinking agent 3-8 part, catalyst 0.2-0.4 part, macromolecule phenolic resins 1-100 part, choose dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins;
2. in room temperature dimethyl silicone polymer, fire-proof packing, crosslinking agent, catalyst and macromolecule phenolic resins are mixed, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the silicon rubber flame-retardant cooling layer semi-finished product of 0.5-2mm;
3). the half-finished preparation of the anti-ablation layer of silicon rubber:
1. the preparation of panel: a) be: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, crosslinking agent 3-8 part, catalyst 0.2-0.4 part is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; B) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, obtains the panel that thickness is 0.5-1mm;
2. the preparation of base plate: a) be: 100 parts of dimethyl silicone polymers, 50～100 parts of telescopic braid reinforcements by the shared parts by weight of each raw material, crosslinking agent 3-8 part, catalyst 0.2-0.4 part is chosen dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst; B) after room temperature is with dimethyl silicone polymer, telescopic braid reinforcement, crosslinking agent and catalyst mix, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, obtains the base plate that thickness is 0.5-1mm;
3. the preparation of intermediate course: a) be: 100 parts of dimethyl silicone polymers, 100～300 parts of imvites by the shared parts by weight of each raw material, 1～100 part in macromolecule phenolic resins, crosslinking agent 3-8 part, catalyst 0.2-0.4 part are chosen dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst; B) after room temperature is with dimethyl silicone polymer, imvite, macromolecule phenolic resins, crosslinking agent and catalyst mix, put into mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, obtains the intermediate course that thickness is 0.5-2mm;
4. the half-finished preparation of the anti-ablation layer of silicon rubber: panel, intermediate course and base plate layering is superimposed successively in the laminating machine mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the anti-ablation layer semi-finished product of silicon rubber of 1-4mm;
4). the half-finished preparation of bulk silicon rubber layer:
With dimethyl silicone polymer plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature, pressure is 6-8MPa, and obtaining thickness is the bulk silicon rubber layer semi-finished product of 0.5-1mm;
5). the preparation of fireproof silicone rubber composite material:
Above-mentioned silicone rubber fireproof separation layer semi-finished product, a silicon rubber flame-retardant cooling layer semi-finished product, the anti-ablation layer semi-finished product of silicon rubber, the layering of bulk silicon rubber layer semi-finished product are superimposed successively in the laminating machine mould, plus-pressure 0.2-2 hour aftershaping under 165 ± 5 ℃ of temperature then, pressure is 6-8MPa, and obtaining thickness is the 3-8mm fireproof silicone rubber composite material.
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