CN109852332A - A kind of surface treating agent and its preparation method and application - Google Patents
A kind of surface treating agent and its preparation method and application Download PDFInfo
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- CN109852332A CN109852332A CN201811479231.XA CN201811479231A CN109852332A CN 109852332 A CN109852332 A CN 109852332A CN 201811479231 A CN201811479231 A CN 201811479231A CN 109852332 A CN109852332 A CN 109852332A
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Abstract
The present invention relates to a kind of surface treating agents and its preparation method and application, in particular to a kind of surface treating agent and preparation method thereof and the application in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining, belong to solid propellant rocket heat insulation layer adhesive technology field, more particularly, to the enhancing silicon rubber heat insulation layer technology Nian Jie with fourth hydroxyl lining interface.Compared with traditional silastic surface processing method, such as corona, plasma processing techniques, the thickening technology that the present invention uses does not need specific equipment, easy to operate, and this treated interface has the longer applicable time.
Description
Technical field
The present invention relates to a kind of surface treating agent and its preparation method and application, in particular to a kind of surface treating agent and its
Preparation method and the application in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining belong to solid propellant rocket heat insulation layer bonding skill
Art field, more particularly, to the enhancing silicon rubber heat insulation layer technology Nian Jie with fourth hydroxyl lining interface.
Background technique
Solid Rocket Motor combustion chamber is made of shell, heat insulation layer, lining and propellant.Wherein, heat insulation layer plays
Effect during propellant combustion to shell thermal protection；Lining plays bonding heat insulation layer and propellant, keeps structural intergrity
Effect.Lining and heat insulation layer unsticking are one of solid propellant rocket common failure failures, solid propellant rocket can be made to send out
The danger such as raw disintegration, explosion, therefore reliable bonding interface is formed between lining and heat insulation layer.
Silicon rubber is a kind of ablation resistance, few smoke performance, all very excellent insulation layer material of storge quality.After vulcanization
The prominent disadvantage of silicon rubber be exactly that surface can be lower, adhesive property is poor, is not easy to be formed reliably with solid rocket motor liner
Bonding interface.This disadvantage becomes restriction silicon rubber heat insulation layer and is able to the technical bottleneck applied.
The research for improving sulphurated siliastic cementability is concentrated mainly on the surface treatment to silicon rubber, after overactivation
Surface can be formed with other materials it is stronger bonding, at present silastic surface processing method be mainly physical treatment side
Method, such as corona, corona treatment.Physical treatment effect duration is short, and processing equipment is difficult to be suitable for different sizes hair
The surface treatment demand of the silicon rubber heat insulation layer of motivation enclosure interior.
Summary of the invention
Technology of the invention solves the problems, such as: overcome the deficiencies in the prior art, proposes a kind of surface treating agent and its preparation
Methods and applications, to solve the Pinch technology that silicon rubber heat insulation layer is applied to solid propellant rocket motor charge.It is used in the present invention
Surface treating agent be applied to silicon rubber heat insulation layer surface treatment, raising and fourth hydroxyl lining interfacial adhesion.
The technical solution of the invention is as follows:
A kind of surface treating agent, which includes hydroxy silicon oil, crosslinking agent, tackifier, titanate coupling agent, resistance to
Hot additive and diluent；It is 100 parts of calculating, the mass fraction of each component with the quality of hydroxy silicon oil are as follows:
100 parts of hydroxy silicon oil
10~30 parts of crosslinking agent
20~80 parts of tackifier
10~40 parts of titanate coupling agent
0.5~2 part of heat-resisting additive
50~300 parts of diluent；
The surface treating agent can also include white carbon black, be 100 parts of calculating, the quality of white carbon black with the quality of hydroxy silicon oil
Number is not more than 40 parts；
The hydroxyl value of the hydroxy silicon oil is between 4%~12%；
The crosslinking agent is ethyl orthosilicate, methyl orthosilicate, methyltriethoxysilane, methyltrimethoxysilane
One or more of mixture；
The tackifier are gamma-aminopropyl-triethoxy-silane, γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicane
One or both of mixture；
The titanate coupling agent is the mixture of one or both of tetraethyl titanate, butyl titanate；
The heat-resisting additive is the mixed of one or more of di-iron trioxide, ceria, stannic oxide
Close object；
The diluent is one of toluene, dimethylbenzene.
A kind of preparation method of surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive and diluent are mixed, and obtain surface treating agent after mixing evenly.
A kind of preparation method of surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
A kind of application of surface treating agent in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining, step are as follows:
(1) surface of silicon rubber heat insulation layer is subjected to sandblasting or grinding process；
(2) surface treating agent being prepared is brushed to the silicon rubber heat insulation layer in step (1) after surface treatment
Surface, hung at a temperature of 20~50 DEG C 30min-2h film forming solidification obtain film layer；
(3) fourth hydroxyl lining is brushed in the film surface that step (2) obtains, carries out precuring at a temperature of 80-85 DEG C first
4-6h is poured propellant after the completion of precuring, then carries out completing silicon rubber with propellant curing 5-7 days at a temperature of 50-70 DEG C
Glue heat insulation layer is bonding with fourth hydroxyl lining, and silicon rubber heat insulation layer can form reliable bonding interface with lining.
The advantage of the present invention compared with prior art:
(1) compared with traditional silastic surface processing method, such as corona, plasma processing techniques, what the present invention used
Thickening technology does not need specific equipment, easy to operate, and this treated interface has the longer applicable time.
(2) after the agent of silicon rubber heat insulation layer surface treated is activated, surface can be increased, chemical mobility of the surface enhancing, fourth
Hydroxyl class lining slurry can sufficiently infiltrate the surface of silicon rubber, and the group of surface active can carry out chemistry with fourth hydroxyl lining instead
It answers, forms firm physics, chemical adhesive interface.
(3) silicon rubber heat insulation layer is a kind of solid propellant rocket heat-insulating material haveing excellent performance.Sulphurated siliastic compared with
Low surface can make it that can not form preferably be bonded bonding interface with fourth hydroxyl lining, limit answering for silicon rubber heat insulation layer
With.Sulphurated siliastic is surface-treated using surface treating agent appropriate, can be formed surely in silicon rubber and lined surfaces
Solid bonding interface.
Specific embodiment
The present invention will be further described in detail below with reference to specific embodiments, but protection scope of the present invention not office
Be limited to this, should include claim full scope, anyone skilled in the art the invention discloses skill
Within the scope of art, any changes or substitutions that can be easily thought of, should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Embodiment 1
The composition of surface treating agent is as follows:
Hydroxy silicon oil, hydroxyl value 6.0%, 100 parts；Ethyl orthosilicate, 20 parts；Gamma-aminopropyl-triethoxy-silane, 20 parts；
Butyl titanate, 10 parts；Di-iron trioxide, 1.0 parts；20 parts of white carbon black；Dimethylbenzene, 200 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
A kind of application of surface treating agent in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining, step are as follows:
(1) surface of silicon rubber heat insulation layer is subjected to sandblasting or grinding process；
(2) surface treating agent being prepared is brushed to the silicon rubber heat insulation layer in step (1) after surface treatment
Surface, hang at 50 °C 30min film forming solidification obtain film layer；
(3) it brushes in the film surface that step (2) obtains or scratches polybutadiene polyurethane class lining slurry, first 80
Precuring 4h is carried out at a temperature of DEG C, NEPE propellant is poured after the completion of precuring, then with NEPE propellant at a temperature of 55 DEG C
Solidification 6 days, completion silicon rubber heat insulation layer is bonding with fourth hydroxyl lining, and silicon rubber heat insulation layer can form reliable bonding with lining
Interface, lining slurry can be infiltrated, and glue contracting phenomenon does not occur in the surface of silicon rubber heat insulation layer, painting process.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 2.25MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/NEPE propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 0.70MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 2
The composition of surface treating agent is as follows:
Hydroxy silicon oil, hydroxyl value 4.0%, 100 parts；Methyl orthosilicate, 10 parts；γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy
Base silane, 10 parts；Gamma-aminopropyl-triethoxy-silane, 20 parts；Butyl titanate, 30 parts；Ceria, 0.5 part；Three oxidations
Two 1.5 parts of iron；Toluene, 50 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 1h under the conditions of 20 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl is poly-
Urethane class lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon rubber
Glue contracting phenomenon does not occur in painting process for the surface of glue heat insulation layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 2.31MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/NEPE propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 0.65MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 3
The composition of surface treating agent is as follows: hydroxy silicon oil, hydroxyl value 8.8%, and 100 parts；Ethyl orthosilicate, 10 parts；Methyl three
Ethoxysilane, 20 parts；Gamma-aminopropyl-triethoxy-silane, 60 parts；Tetraethyl titanate, 5 parts；Tetraethyl titanate, 5 parts；Dioxy
Change tin, 0.5 part；Di-iron trioxide, 0.5 part；White carbon black, 40 parts；Toluene, 300 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 1h under the conditions of 25 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl is poly-
Urethane class lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon rubber
Glue contracting phenomenon does not occur in painting process for the surface of glue heat insulation layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 1.98MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/HTPB propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 1.06MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 4
The composition of surface treating agent is as follows: hydroxy silicon oil, hydroxyl value 12.0%, and 100 parts；Methyl orthosilicate, 9 parts；Methyl three
Methoxy silane, 15 parts；Gamma-aminopropyl-triethoxy-silane, 30 parts；Tetraethyl titanate, 15 parts；Stannic oxide, 0.8 part；Two
Cerium oxide, 0.8 part；White carbon black, 22 parts；Dimethylbenzene, 150 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 2h under the conditions of 25 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl is poly-
Urethane class lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon rubber
Glue contracting phenomenon does not occur in painting process for the surface of glue heat insulation layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 2.05MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/PET propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 0.89MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 5
The composition of surface treating agent is as follows: hydroxy silicon oil, hydroxyl value 9.2%, and 100 parts；Methyl orthosilicate, 10 parts；Methyl three
Ethoxysilane, 10 parts；Gamma-aminopropyl-triethoxy-silane, 25 parts；Butyl titanate, 40 parts；Di-iron trioxide, 2 parts；It is white
Carbon black, 15 parts；Dimethylbenzene, 250 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 0.5h under the conditions of 35 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl
Polyurethanes lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon
Glue contracting phenomenon does not occur in painting process for the surface of rubber heat-insulating layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 2.31MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/HTPB propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 1.02MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 6
The composition of surface treating agent is as follows: hydroxy silicon oil, hydroxyl value 10.0%, and 100 parts；Methyl orthosilicate, 10 parts；Methyl three
Ethoxysilane, 10 parts, ethyl orthosilicate, 10 parts；Gamma-aminopropyl-triethoxy-silane, 60 parts, γ-(2,3- the third oxygen of epoxy)
Propyl trimethoxy silicane, 20 parts；Butyl titanate, 15 parts；Di-iron trioxide, 0.5 part；White carbon black, 25 parts；Dimethylbenzene, 250
Part.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive, white carbon black and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 1.5h under the conditions of 40 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl
Polyurethanes lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon
Glue contracting phenomenon does not occur in painting process for the surface of rubber heat-insulating layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 1.87MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/HTPB propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 1.30MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Embodiment 7
The composition of surface treating agent is as follows: hydroxy silicon oil, hydroxyl value 6.6%, and 100 parts；Methyl orthosilicate, 5 parts；Three second of methyl
Oxysilane, 5 parts, ethyl orthosilicate, 10 parts；Gamma-aminopropyl-triethoxy-silane, 30 parts, γ-(2,3- the third oxygen of epoxy) propyl
Trimethoxy silane, 30 parts；Butyl titanate, 20 parts；Di-iron trioxide, 1.5 parts；Dimethylbenzene, 150 parts.
The preparation method of above-mentioned surface treating agent, steps of the method are: by hydroxy silicon oil, crosslinking agent, tackifier, metatitanic acid
Ester coupling agent, heat-resisting additive and diluent are mixed, and obtain surface treating agent after mixing evenly.
The surface treatment of silicon rubber heat insulation layer and lining brushing: silicon rubber heat insulation layer is through sandblasting or polishing, cleaning, preliminary drying processing
Afterwards, brushing surface inorganic agent hangs 1.0h under the conditions of 50 DEG C.Insulation layer surface after surface treated is brushed or blade coating fourth hydroxyl
Polyurethanes lining slurry, heating is until lining reaches semi-cured state.Test result shows that lining slurry can be infiltrated in silicon
Glue contracting phenomenon does not occur in painting process for the surface of rubber heat-insulating layer.
By Q/G173-2008, " Solid Rocket Motor combustion chamber interfacial adhesion strength test method φ 25mm sample is stretched
Method " the bonding test specimen of steel part/silicon rubber heat insulation layer (surface surface treated agent processing) is prepared, the bonding for testing the test specimen is strong
Degree, adhesive strength 2.15MPa.By " the Solid Rocket Motor combustion chamber interfacial adhesion strength test side QJ2038.1A-2004
Method first part: rectangular coupon avulses method " prepare steel part/silicon rubber heat insulation layer (surface surface treated agent processing)/fourth hydroxyl lining
The joint of layer/NEPE propellant is bonded test specimen, tests the joint adhesive strength of the test specimen, adhesive strength 0.75MPa.Test knot
Fruit shows that silicon rubber heat insulation layer can form reliable bonding interface with lining.
Claims (10)
1. a kind of surface treating agent, it is characterised in that: the surface treating agent includes hydroxy silicon oil, crosslinking agent, tackifier, titanate esters
Coupling agent, heat-resisting additive and diluent；It is 100 parts of calculating, the mass fraction of each component with the quality of hydroxy silicon oil are as follows:
2. a kind of surface treating agent according to claim 1, it is characterised in that: surface treating agent further includes white carbon black, with
The quality of hydroxy silicon oil is 100 parts of calculating, and the mass fraction of white carbon black is not more than 40 parts.
3. a kind of surface treating agent according to claim 1 or 2, it is characterised in that: the hydroxyl value of the hydroxy silicon oil exists
Between 4%~12%；
The crosslinking agent is ethyl orthosilicate, in methyl orthosilicate, methyltriethoxysilane, methyltrimethoxysilane
One or more kinds of mixtures.
4. a kind of surface treating agent according to claim 1 or 2, it is characterised in that: the tackifier are γ-aminopropyl
The mixture of one or both of triethoxysilane, γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicane；
The titanate coupling agent is the mixture of one or both of tetraethyl titanate, butyl titanate.
5. a kind of surface treating agent according to claim 1 or 2, it is characterised in that: the heat-resisting additive is three oxygen
Change the mixture of one or more of two iron, ceria, stannic oxide；
The diluent is one of toluene, dimethylbenzene.
6. a kind of preparation method of surface treating agent described in claim 1, it is characterised in that steps of the method are: by hydroxyl
Silicone oil, crosslinking agent, tackifier, titanate coupling agent, heat-resisting additive and diluent are mixed, and obtain surface after mixing evenly
Inorganic agent.
7. a kind of preparation method of surface treating agent as claimed in claim 2, it is characterised in that steps of the method are: by hydroxyl
Silicone oil, crosslinking agent, tackifier, titanate coupling agent, heat-resisting additive, white carbon black and diluent are mixed, after mixing evenly
Obtain surface treating agent.
8. a kind of application of surface treating agent in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining, it is characterised in that step are as follows:
(1) surface of silicon rubber heat insulation layer is subjected to surface sand-blasting or grinding process；
(2) surface that surface treating agent is brushed to the silicon rubber heat insulation layer in step (1) after surface treatment, hangs, obtains
To film layer；
(3) fourth hydroxyl lining is brushed in the film surface that step (2) obtains, precuring 4-6h is then carried out at a temperature of 80-85 DEG C,
Finally solidify 5-7 days at a temperature of 50-70 DEG C, it is bonding with fourth hydroxyl lining to complete silicon rubber heat insulation layer.
9. a kind of application of the surface treating agent according to claim 8 in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining,
It is characterized by: hanging temperature is 20~50 DEG C, open assembly time 30min-2h in the step (2).
10. a kind of application of the surface treating agent according to claim 8 in silicon rubber heat insulation layer is Nian Jie with fourth hydroxyl lining,
It is characterized by: being poured propellant after precuring in the step (3), fourth hydroxyl lining is made to complete to solidify with propellant.
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| CN110256956B (en) * | 2019-07-02 | 2021-05-11 | 杭州之江新材料有限公司 | Primer for silicon rubber and preparation method thereof |
| CN111690366A (en) * | 2020-07-28 | 2020-09-22 | 深圳市安伯斯科技有限公司 | Hybrid polyurethane resin glue and preparation method thereof |
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