CN113583622A - Ablation type sealing silicone rubber adhesive and preparation method thereof - Google Patents
Ablation type sealing silicone rubber adhesive and preparation method thereof Download PDFInfo
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- CN113583622A CN113583622A CN202110926563.3A CN202110926563A CN113583622A CN 113583622 A CN113583622 A CN 113583622A CN 202110926563 A CN202110926563 A CN 202110926563A CN 113583622 A CN113583622 A CN 113583622A
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- 239000000853 adhesive Substances 0.000 title claims abstract description 71
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 71
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 60
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 238000002679 ablation Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 57
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 19
- 235000010290 biphenyl Nutrition 0.000 claims abstract description 19
- 239000004305 biphenyl Substances 0.000 claims abstract description 19
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 19
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims abstract description 19
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 18
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 15
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000012795 verification Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CFOAUMXQOCBWNJ-UHFFFAOYSA-N [B].[Si] Chemical compound [B].[Si] CFOAUMXQOCBWNJ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the technical field of adhesive preparation, in particular to an ablation type sealing silicone rubber adhesive and a preparation method thereof. The ablation type sealing silicone rubber adhesive adopts methyl diphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and toluene as raw materials, ethyl orthosilicate as a cross-linking agent and dibutyltin dilaurate as a catalyst. By reasonable proportioning design, the adhesive is coated on the surface of a component, and after the adhesive is cured at normal temperature, an adhesive layer with excellent ablation resistance, bonding performance and environmental adaptability can be formed; the elongation at break of the adhesive reaches 168%, the normal temperature shear strength reaches 1.63MPa, the high temperature (300 ℃) shear strength reaches 0.28MPa, and other indexes all meet the standard requirements, so that the engineering application requirements of aircraft products can be met.
Description
Technical Field
The invention relates to the technical field of adhesive preparation, in particular to an ablation type sealing silicone rubber adhesive and a preparation method thereof.
Background
The aerospace craft has improved comprehensive performance in the aspects of range, flying speed, hit precision and penetration resistance, and also puts higher requirements on high-temperature sealing performance of the craft in the flying process. The bonding property, the ablation resistance and the scraping property of the widely used single-component silicone rubber adhesive at present can not meet the coating sealing requirement of a novel aircraft. The technical requirement of sealing a fairing of a new type product is taken as traction, and the research on the forming formula and the preparation process of the ablation type methyl diphenyl room temperature vulcanized silicone rubber adhesive is developed. Through theoretical analysis, material screening, formula development and a large number of experimental verifications, the ablation type sealing silicone rubber adhesive with high bonding strength, excellent ablation resistance and excellent process performance is obtained, and can meet the engineering application requirements of aircraft products.
Disclosure of Invention
In order to solve the problem that the existing adhesive is poor in bonding performance, ablation resistance and coating performance, the invention provides an adhesive formula suitable for high-temperature sealing of a high-speed aircraft and a use method thereof.
The specific invention content is as follows:
1. an ablation type sealing silicone rubber adhesive is composed of a film forming main body, a filler, an auxiliary agent, a cross-linking agent and a catalyst, and specifically comprises a component A, a component B and a component C, wherein the component A is mixed with the component B and the component C when in use.
Furthermore, the film forming main body is methyl diphenyl room temperature vulcanized silicone rubber, the filler is fumed silica and talcum powder, the auxiliary agent is silane coupling agent and toluene, the crosslinking agent is ethyl orthosilicate (component B), and the catalyst is dibutyltin dilaurate (component C).
Further, the component A comprises the following components in parts by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 1-5 parts of fumed silica, 1-4 parts of talcum powder, 1-4 parts of silane coupling agent and 3-6 parts of toluene;
the component B comprises the following components in parts by weight: 5-8 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.3-0.8 part of dibutyltin dilaurate.
Preferably, the component A comprises the following components in parts by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 2-4 parts of fumed silica, 1-3 parts of talcum powder, 1-3 parts of silane coupling agent and 4-6 parts of toluene;
the component B comprises the following components in parts by weight: 5-7 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.5-0.7 part of dibutyltin dilaurate.
Further, the optimal formula of the ablation type sealing silicone rubber adhesive is as follows: the component A comprises the following components in parts by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 3 parts of fumed silica, 2 parts of talcum powder, 1 part of silane coupling agent and 5 parts of toluene;
the component B comprises the following components in parts by weight: 6 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.6 part of dibutyltin dilaurate.
2. The preparation method of the ablation type sealing silicone rubber adhesive comprises the steps of weighing methyl diphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and toluene according to a formula, blending to obtain a component A, adding a component B and a component C when the adhesive is used, mixing, placing the obtained mixture on a scraper with a scraper, scraping the mixture back and forth with the scraper, and further ensuring the uniformity of the rubber material to obtain the qualified ablation type sealing silicone rubber adhesive.
The ablation type sealing silicone rubber adhesive is particularly used for bonding and sealing the butt joint surface of a certain type of missile fairing and an missile body.
Advantageous effects
1. According to the ablation-type sealing silicone rubber adhesive, methyl diphenyl room-temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and toluene are used as raw materials, ethyl orthosilicate is used as a cross-linking agent, dibutyltin dilaurate is used as a catalyst, the adhesive is coated on the surface of a component through reasonable proportioning design, and a rubber layer with excellent ablation resistance, bonding performance and environmental adaptability can be formed after curing at normal temperature; the normal temperature shearing strength of the adhesive layer is more than 1MPa, and the high temperature (300 ℃) shearing strength is more than 0.15 MPa. After the adhesive layer is continuously ablated for 2min in the outer flame of the alcohol lamp, the surface is evenly carbonized, and the inner layer is still tightly combined with the base material. The elongation at break of the adhesive prepared by the optimal scheme can reach 168%, the normal-temperature shear strength reaches 1.63MPa, the high-temperature (300 ℃) shear strength reaches 0.28MPa, and other indexes all meet the standard requirements, so that the engineering application requirements of aircraft products can be met.
2. The ablation type sealing silicone rubber adhesive passes through engineering application verification on a fairing, can meet the application requirements of coating sealing and thermal protection of a high-speed aircraft, is a preferred material for sealing and thermal protection of military and civil products, and has a good application prospect.
Drawings
FIG. 1 is a schematic diagram of an ablation test of an adhesive according to the present invention, a) a physical diagram before ablation; b) a physical map of the ablation process; c) a post-ablation physical map; d) and scraping the surface layer with a knife after ablation to obtain a real image.
Detailed Description
The technical solution of the present invention is further defined in the following embodiments, but the scope of the claims is not limited to the description.
Example 1
1. An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 1 part of fumed silica, 3 parts of talcum powder, 4 parts of silane coupling agent and 3 parts of toluene;
and B component: 5 parts of ethyl orthosilicate;
and C, component C: 0.7 part of dibutyltin dilaurate.
2. The preparation method of the ablation type sealing silicone rubber adhesive comprises the steps of weighing methyl diphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and toluene according to a formula, blending to obtain a component A, adding a component B and a component C when the adhesive is used, mixing, placing the obtained mixture on a scraper with a scraper, scraping the mixture back and forth with the scraper, and further ensuring the uniformity of the rubber material to obtain the qualified ablation type sealing silicone rubber adhesive.
Example 2
An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 1 part of fumed silica, 2 parts of talcum powder, 4 parts of silane coupling agent and 3 parts of toluene;
and B component: 5 parts of ethyl orthosilicate;
and C, component C: 0.3 part of dibutyltin dilaurate.
An adhesive was prepared according to the preparation method of example 1.
Example 3
An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 5 parts of fumed silica, 4 parts of talcum powder, 3 parts of silane coupling agent and 6 parts of toluene;
and B component: 8 parts of ethyl orthosilicate;
and C, component C: 0.8 part of dibutyltin dilaurate.
An adhesive was prepared according to the preparation method of example 1.
Example 4
An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 3 parts of fumed silica, 2 parts of talcum powder, 1 part of silane coupling agent and 3 parts of toluene;
and B component: 5 parts of ethyl orthosilicate;
and C, component C: 0.4 part of dibutyltin dilaurate.
An adhesive was prepared according to the preparation method of example 1.
Example 5
An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 5 parts of fumed silica, 1 part of talcum powder, 2 parts of silane coupling agent and 6 parts of toluene;
and B component: 7 parts of ethyl orthosilicate;
and C, component C: 0.5 part of dibutyltin dilaurate.
An adhesive was prepared according to the preparation method of example 1.
Example 6
An ablation type sealing silicone rubber adhesive comprises the following components in parts by weight:
the component A comprises: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 3 parts of fumed silica, 2 parts of talcum powder, 1 part of silane coupling agent and 5 parts of toluene;
and B component: 6 parts of ethyl orthosilicate;
and C, component C: 0.6 part of dibutyltin dilaurate.
An adhesive was prepared according to the preparation method of example 1.
Performance test of ablative sealing silicone rubber adhesive
The ablative-type sealing silicone rubber adhesives prepared in examples 1-6 were tested for non-volatile matter, drying time, elongation at break, normal temperature shear strength, high temperature shear strength, sealing properties, and ablation resistance according to relevant standards. The preparation process and test results of the test piece are as follows:
(1) pretreatment of test piece
10 stainless steel test pieces and 10 aluminum test pieces of 20mm × 70mm × 2mm respectively, uniformly polishing the surfaces of the test pieces by using No. 80 sand coats, cleaning by using gasoline or acetone, coating a silicon boron surface treating agent, and naturally drying for more than 15 min.
(2) Glue preparation
200g of adhesive is prepared, and the operation key point is that the adhesive is placed on a scraper after being stirred, and the scraper is used for scraping back and forth, so that the ablation type sealing silicone rubber adhesive is uniformly mixed.
(3) Gluing and bonding
And uniformly coating the corresponding position on the surface of the test piece to ensure that the thickness of the glue layer is not less than 2 mm.
(4) Curing
The adhesive was initially cured at room temperature for 2 days and completely cured for 5 days.
(5) Testing
The comprehensive performance of the adhesive is tested by referring to GB/T2793, GB/T7124-.
TABLE 1 technical index of comprehensive performance of ablative sealing silicone rubber adhesive
From the test data in the table, the formula of the adhesive is the best according to the scheme of the embodiment 6, all indexes of the adhesive can meet the standard requirements, the elongation at break, the normal-temperature shear strength and the high-temperature shear strength of the adhesive all reach good states, and the adhesive has good effects in the aspects of bonding and sealing the butt joint surfaces of the missile fairing and the missile body.
In addition, after the test piece prepared in example 6 was continuously ablated for 2min by the outer flame of an alcohol burner, the surface of the adhesive layer was uniformly carbonized to form lime, and after the surface layer was scraped off by a blade, the inner layer was still tightly bonded to the base material. The material diagram is shown in the attached drawing 1 in the specification in detail, and the test result shows that the comprehensive performances of the ablation-type sealing silicone rubber adhesive provided by the invention, such as the bonding performance, the ablation resistance and the like, are excellent, and the coating sealing requirement of related components in an ablation (high-temperature air flow scouring) environment can be met.
Second, the engineering application verification of the adhesive on a certain type of fairing
The engineering application verification of the splicing and ablation type sealing silicone rubber adhesive for the butt joint surface of the fairing mainly comprises the steps of pretreatment of the butt joint surface of the fairing, preparation of the adhesive, coating and scraping of the adhesive, assembly of parts, curing of an adhesive layer and performance verification.
1. Pretreatment of cowlings and projectiles
(1) And uniformly polishing the bonding surfaces of the fairing and the projectile body by using No. 80 abrasive leather to ensure that the metal matrix is exposed, cleaning the polished surfaces by using gasoline or acetone, coating a silicon-boron surface treatment agent once, and naturally drying for more than 15 min.
(2) Glue preparation
500g of ablative sealing silicone rubber adhesive was prepared as in example 12, stirred well and then placed on a spatula and scraped back and forth with a spatula to ensure uniform mixing of the silicone rubber.
(3) Product protection
Rubberized fabric is pasted to radome fairing and body viscose surface periphery to the region that need not bond avoids being stained by the adhesive.
(4) Gluing and bonding
The prepared adhesive is uniformly coated on the bonding surfaces of the fairing and the elastomer, and the thickness of the adhesive layer is not less than 2 mm.
(5) Assembly
The front cover, the middle cover, the rear cover and the elastomer which are coated with the glue are completely assembled by screws, and the uniform assembly stress of the screws is ensured in the assembling process.
(6) Curing
The fairing after gluing, bonding and assembling is initially cured for 2 days at normal temperature and is completely cured for 5 days, and no external force can be applied to the fairing body during curing.
(7) Verification result
The fairing and the elastomer which are bonded by the ablation type sealing silicon rubber adhesive are arranged in a certain type of aircraft, and the aircraft passes the overall quality inspection and the flight test examination. The ablation type sealing silicone rubber adhesive meets the engineering application verification requirements, can meet the application requirements of high-speed aircraft coating sealing and thermal protection, and has a good application prospect.
It should be noted that the above examples and test examples are only for further illustration and understanding of the technical solutions of the present invention, and are not to be construed as further limitations of the technical solutions of the present invention, and the invention which does not highlight essential features and significant advances made by those skilled in the art still belongs to the protection scope of the present invention.
Claims (8)
1. The ablation type sealing silicone rubber adhesive is characterized by comprising a film forming main body, a filler, an auxiliary agent, a cross-linking agent and a catalyst, and specifically comprises a component A, a component B and a component C, wherein the component A is mixed with the component B and the component C when in use.
2. The ablative sealing silicone rubber adhesive of claim 1, wherein the film-forming body is a methyl bis-phenyl room temperature vulcanized silicone rubber, the filler is fumed silica and talc, and the auxiliary agent is a silane coupling agent and toluene.
3. The ablative sealing silicone rubber adhesive of claim 1, wherein the component a comprises, by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 1-5 parts of fumed silica, 1-4 parts of talcum powder, 1-4 parts of silane coupling agent and 3-6 parts of toluene;
the component B comprises the following components in parts by weight: 5-8 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.3-0.8 part of dibutyltin dilaurate.
4. The ablative sealing silicone rubber adhesive of claim 3, wherein the component A comprises, by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 2-4 parts of fumed silica, 1-3 parts of talcum powder, 1-3 parts of silane coupling agent and 4-6 parts of toluene;
the component B comprises the following components in parts by weight: 5-7 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.5-0.7 part of dibutyltin dilaurate.
5. The ablative sealing silicone rubber adhesive of claim 3, wherein the component A comprises, by weight: 100 parts of methyl diphenyl room temperature vulcanized silicone rubber, 3 parts of fumed silica, 2 parts of talcum powder, 1 part of silane coupling agent and 5 parts of toluene;
the component B comprises the following components in parts by weight: 6 parts of ethyl orthosilicate;
the component C comprises the following components in parts by weight: 0.6 part of dibutyltin dilaurate.
6. A preparation method of an ablation type sealing silicone rubber adhesive is characterized in that methyl diphenyl room temperature vulcanized silicone rubber, fumed silica, talcum powder, a silane coupling agent and toluene are weighed according to a formula and are prepared into a component A, and a component B and a component C are added and mixed when the adhesive is used.
7. The method for preparing an ablative sealing silicone rubber adhesive according to claim 6, wherein the mixing is carried out by stirring the component A, the component B and the component C uniformly, placing the obtained mixture on a scraper, and scraping the mixture back and forth with the scraper.
8. An application of ablation type sealing silicon rubber adhesive in the bonding and sealing of the butt joint surface of a missile fairing and a missile body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110926563.3A CN113583622A (en) | 2021-08-12 | 2021-08-12 | Ablation type sealing silicone rubber adhesive and preparation method thereof |
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| CN202110926563.3A CN113583622A (en) | 2021-08-12 | 2021-08-12 | Ablation type sealing silicone rubber adhesive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736605A (en) * | 2022-02-28 | 2022-07-12 | 深圳镝普材料科技有限公司 | Silicone rubber ablation-resistant coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654583A (en) * | 2005-01-19 | 2005-08-17 | 山东大学 | Multifunctional ablation-resistant adhesive for thermal protection and method for preparing same |
| CN105331326A (en) * | 2015-11-30 | 2016-02-17 | 贵州航天风华精密设备有限公司 | Modified silicone rubber adhesive |
| CN106190017A (en) * | 2016-08-08 | 2016-12-07 | 岳胜武 | Condensed type three component TPU silicon gel and preparation method thereof |
-
2021
- 2021-08-12 CN CN202110926563.3A patent/CN113583622A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654583A (en) * | 2005-01-19 | 2005-08-17 | 山东大学 | Multifunctional ablation-resistant adhesive for thermal protection and method for preparing same |
| CN105331326A (en) * | 2015-11-30 | 2016-02-17 | 贵州航天风华精密设备有限公司 | Modified silicone rubber adhesive |
| CN106190017A (en) * | 2016-08-08 | 2016-12-07 | 岳胜武 | Condensed type three component TPU silicon gel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736605A (en) * | 2022-02-28 | 2022-07-12 | 深圳镝普材料科技有限公司 | Silicone rubber ablation-resistant coating and preparation method thereof |
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Application publication date: 20211102 |