CN105566914A - Intelligent energy absorbing material and preparation method thereof - Google Patents
Intelligent energy absorbing material and preparation method thereof Download PDFInfo
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- CN105566914A CN105566914A CN201511025629.2A CN201511025629A CN105566914A CN 105566914 A CN105566914 A CN 105566914A CN 201511025629 A CN201511025629 A CN 201511025629A CN 105566914 A CN105566914 A CN 105566914A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of 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; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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Abstract
The invention provides a preparation method of a high temperature-resistant intelligent energy absorbing material. A damping and protecting material with a high buffering performance is prepared with energy absorbing gel as a filler and a silicone rubber foamed material as a base body. The energy absorbing gel spontaneously becomes hard from soft when being impacted, and absorbs energy in the becoming process in order to realize an effective protection effect, and the silicone rubber foamed material used as the structure base body also can absorb parts of impact energy through cell deformation when being acted, so the base body and the filler are simultaneously used to realize damping and buffering effects.
Description
Technical field
The present invention relates to technical field of function materials, particularly intelligent energy-absorbing material of one and preparation method thereof.
Background technology
Present damping, buffering protective material on the market mainly relies on elastomer foam or relatively soft compressibility material as energy absorbing material.And be that damping performance is limited when this materials application protects the upper main shortcoming existed in physical protection or precision instrument, when being subject to severe impact, impact energy can not fully dissipate by common protective material effectively, still have very strong impact force action on human body or equipment, personal injury or structure deteriorate can be caused; On the other hand, the use temperature of current commonly used rubber expanded material, polyurethane foam material is limited in scope, and is not suitable for long-term applied at elevated temperature.
Summary of the invention
Based on this, be necessary to provide a kind of method of the intelligent energy-absorbing material that can effectively meet under hot environment.
In addition, a kind of intelligent energy-absorbing material is also provided.
A preparation method for intelligent energy-absorbing material, comprises the steps:
Siloxanes, linking agent and chainextender are uniformly mixed, obtain the first solution;
By swollen flow pattern gel dissolves in solvent, obtain swollen flow pattern gelating soln;
In described first solution, add described swollen flow pattern gelating soln, the first additive respectively, obtain homogeneous reactant;
Under room temperature condition, obtain described intelligent energy-absorbing material by after the sulfuration of described homogeneous reactant, foaming.
In certain embodiments, described siloxanes is at least one in dimethyl siloxane, methyl vinyl silicone, methylphenyl siloxane.
Described linking agent is tetraethoxy in certain embodiments, positive silicic acid propyl ester, at least one in poly-Union carbide A-162; Described chainextender is bi-methoxy siloxanes, two oxyethyl group siloxanes, two functionality acetamido silane, at least one in hydroxy silicon oil.
In certain embodiments, described swollen flow pattern gel is prepared by following method:
Inorganic micro-and nano-particles is mixed with siloxane compound, obtains mixture;
Under the temperature condition of 40 ~ 150 DEG C, described mixture and boron compound are carried out mixing crosslinking reaction 0.5 ~ 4h, obtains shear thickening gel;
Described shear thickening gel is mixed with additive, obtains described swollen flow pattern gel.
In certain embodiments, described inorganic micro-and nano-particles is SiO
2, TiO
2, kaolin, talcum powder, minimum one in mica powder and polynite, the particle size range of described inorganic micro-and nano-particles is 50 ~ 900nm.
In certain embodiments, described siloxane compound is the minimum one in dimethyl siloxane, methylphenyl siloxane, ethylsiloxane, hydroxyl siloxanes, phenyl siloxane, hydrogen-containing siloxane, oxyethyl group siloxanes.
In certain embodiments, the mass ratio of described inorganic micro-and nano-particles and described siloxane compound is 0.1 ~ 50:100.
In certain embodiments, described boron compound is at least one in boron, boron oxide, ortho-boric acid, metaboric acid, tetraboric acid, borate, boric acid ester and boron trioxide; Described borate is at least one in five boric acid two ammoniums, sodium borate decahydrate, potassium pentaborate, hypoboric acid magnesium, single lime borate; Described boric acid ester comprises the alkyl, the allyl boronate/tri-organic radical boric acid ester that are hydrolyzed into boric acid, comprise triethyl borate, triphenyl borate, boric acid three benzyl ester, tricyclohexyl borate, boric acid three (methyl-silicane ester), boric acid three tert-butyl ester, at least one in tri-alkoxy boroxin.
In certain embodiments, in described boron compound, the quantity of boron atom with the ratio of the quantity of active group in siloxane compound is: 1:10 ~ 10:1; Wherein, in siloxane compound, active group comprises at least one in hydroxyl, oxyethyl group, methoxyl group, carboxyl, active hydrogen, phenyl.
In certain embodiments, described Second addition comprises at least one in organobentonite, castor oil derivative, aerosil, polyamide wax, and described castor oil derivative comprises at least one in hydrogenated castor oil, sulfonated castor oil, epoxidized castor oil.
In certain embodiments, the mass ratio of described additive and described shear thickening gel is between 0.5% ~ 20%.
In certain embodiments, described solvent is silicone oil; Described first additive is polynite.
In certain embodiments, described linking agent with the quality of siloxanes than scope is: 0.5% ~ 20%, and the quality of chainextender and siloxanes is 0.5% ~ 20% than scope.
The preparation method of resistant to elevated temperatures intelligent energy-absorbing material provided by the invention, using a kind of energy-absorbing gel as filler, silicon rubber foam material is as matrix, and preparation becomes a kind of damping protection material of high shock-absorbing capacity.Energy-absorbing gel state when being subject to shock action can spontaneously be transformed into hard from softness, energy is absorbed in this process, thus effectively play protective effect, silicon rubber foam material is as structural matrix, when being subject to acting on, abscess distortion also can absorb the impact energy of a part, and matrix and filler act on the effect playing damping, buffering simultaneously.
In addition, the silicon rubber that the application provides can life-time service in-60 ~ 250 DEG C of temperature ranges, and short-term 400 DEG C of uses, can effectively can meet the requirement of shelter under hot environment.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of the intelligent energy-absorbing material of an embodiment.
Fig. 2 is the schema of the preparation method of the swollen flow pattern gel of an embodiment.
Embodiment
Mainly in conjunction with the drawings and the specific embodiments intelligent energy-absorbing material and preparation method thereof is described in further detail below.
As shown in Figure 1, the preparation method of the intelligent energy-absorbing material of an embodiment, comprises the steps:
Step S10: siloxanes, linking agent and chainextender are uniformly mixed, obtains the first solution;
Preferably, described siloxanes is at least one in dimethyl siloxane, methyl vinyl silicone, methylphenyl siloxane.
Preferably, described linking agent is tetraethoxy, positive silicic acid propyl ester, at least one in poly-Union carbide A-162; Described chainextender is bi-methoxy siloxanes, two oxyethyl group siloxanes, two functionality acetamido silane, at least one in hydroxy silicon oil.
Preferably, described linking agent with the quality of siloxanes than scope is: 0.5% ~ 20%, and the quality of chainextender and siloxanes is 0.5% ~ 20% than scope.
Step S20: by swollen flow pattern gel dissolves in solvent, obtains swollen flow pattern gelating soln;
Preferably, described solvent is silicone oil.
Preferably, as shown in Figure 2, swollen flow pattern gel is prepared by following method:
Step S110: inorganic micro-and nano-particles is mixed with siloxane compound, obtains mixture;
Wherein, described inorganic micro-and nano-particles is SiO
2, TiO
2, kaolin, talcum powder, minimum one in mica powder and polynite, the particle size range of described inorganic micro-and nano-particles is 50 ~ 900nm.
Wherein, described siloxane compound is the minimum one in dimethyl siloxane, methylphenyl siloxane, ethylsiloxane, hydroxyl siloxanes, phenyl siloxane, hydrogen-containing siloxane, oxyethyl group siloxanes.
Preferably, the mass ratio of described inorganic micro-and nano-particles and described siloxane compound is 0.1% ~ 50%:100%.
Preferably, described inorganic micro-and nano-particles is mixed by powerful mechanical stirring or ultrasonic wave with siloxane compound.The velocity range of described stirring is 200 ~ 1000 revs/min, and ultrasonic disperse power range is 0.1 ~ 10kW.
Preferably, described powerful mechanical stirring implementation comprises employing intermittent mixing equipment and continuous-blending equipment.Intermittent mixing equipment comprises change can mixer, double planetary mixer, conical screw mixer, ribbon blender, both arms or blade-type mixer etc.Continuous-blending equipment comprises single screw extrusion machine, twin screw and multiple screw extruder, rotating Vortex forcing machine, twin screw retrograde rotation forcing machine, two sections of forcing machines, two rotors continuous mixing device etc.Also can adopt two or more the combination of above-mentioned mixing equipment.
Step S120: under the temperature condition of 40 ~ 150 DEG C, is undertaken mixing crosslinking reaction 0.5 ~ 4h by described mixture and boron compound, obtains shear thickening gel;
Wherein, described boron compound is at least one in boron, boron oxide, ortho-boric acid, metaboric acid, tetraboric acid, borate, boric acid ester and boron trioxide; Described borate is at least one in five boric acid two ammoniums, sodium borate decahydrate, potassium pentaborate, hypoboric acid magnesium, single lime borate; Described boric acid ester comprises the alkyl, the allyl boronate/tri-organic radical boric acid ester that are hydrolyzed into boric acid, comprise triethyl borate, triphenyl borate, boric acid three benzyl ester, tricyclohexyl borate, boric acid three (methyl-silicane ester), boric acid three tert-butyl ester, at least one in tri-alkoxy boroxin.
Preferably, in described boron compound, the quantity of boron atom is 1:10 ~ 10:1 with the ratio of the quantity of active group in siloxane compound; Wherein, in siloxane compound, active group comprises at least one in hydroxyl, oxyethyl group, methoxyl group, carboxyl, active hydrogen, phenyl.
Step S130: mixed with Second addition by described shear thickening gel, obtains described intelligent energy-absorbing material.
Wherein, described Second addition comprises at least one in organobentonite, castor oil derivative, modified polyurea compound, polyolefin fine particle, aerosil, polyamide wax.
Wherein, the mass ratio of described Second addition and described shear thickening gel is between 0.5% ~ 20%.
Be appreciated that, above-mentioned swollen flow pattern gel adopts and mixes with siloxane compound with inorganic micro-and nano-particles, the mixture obtained and boron compound are carried out mixing crosslinking reaction and obtains shear thickening gel, again by described shear thickening gel and polymer-based volume recombination, above-mentioned swollen flow pattern gel state when being subject to shock action can spontaneously be transformed into hard from softness, absorb energy in this process, thus effectively play protective effect.
Step S30: add described swollen flow pattern gelating soln, the first additive respectively in described first solution, obtain homogeneous reactant;
Preferably, under the condition of high-speed stirring or ultrasonic disperse, by described first solution, described swollen flow pattern gelating soln, additive and catalyzer fully mix, thus obtain homogeneous reactant and obtain homogeneous reactant.
Preferably, described first additive is polynite.
Step S40: under room temperature condition, obtains described intelligent energy-absorbing material by after the sulfuration of described homogeneous reactant, foaming.
The preparation method of resistant to elevated temperatures intelligent energy-absorbing material provided by the invention, using a kind of energy-absorbing gel as filler, silicon rubber foam material is as matrix, and preparation becomes a kind of damping protection material of high shock-absorbing capacity.Energy-absorbing gel state when being subject to shock action can spontaneously be transformed into hard from softness, energy is absorbed in this process, thus effectively play protective effect, silicon rubber foam material is as structural matrix, when being subject to acting on, abscess distortion also can absorb the impact energy of a part, and matrix and filler act on the effect playing damping, buffering simultaneously; In addition, the silicon rubber that the application provides can life-time service in-60 ~ 250 DEG C of temperature ranges, and short-term 400 DEG C of uses, can effectively can meet the requirement of shelter under hot environment.
A kind of intelligent energy-absorbing material prepared by the preparation method of above-mentioned intelligent energy-absorbing material.Because this intelligent energy-absorbing material adopts above-mentioned preparation method to prepare, above-mentioned intelligent energy-absorbing material is made to have high performance.
Be below specific embodiment part:
Embodiment 1
The preparation process of the intelligent energy-absorbing material of the present embodiment is as follows:
Employing dimethyl siloxane is body material, and tetraethoxy is as linking agent, and bi-methoxy siloxanes is chainextender, stirs and obtains the first solution; Swollen flow pattern gel dissolves in silicone oil, is obtained swollen flow pattern gelating soln by another aspect.Then swollen flow pattern gelating soln is poured in the first solution, and add polynite as additive, under mechanical agitation, obtain the solution mixed, add, gained liquid is poured in mould, foam under room temperature.After treating product foaming completely, carry out aftertreatment to it: heat up deeply-curing in baking oven, solidification value is 250 DEG C, and set time is 1.5 hours, obtains intelligent energy-absorbing material.
Embodiment 2
The preparation process of the intelligent energy-absorbing material of the present embodiment is as follows:
Employing methyl vinyl silicone is body material, and positive silicic acid propyl ester is as linking agent, and two oxyethyl group siloxanes is chainextender, stirs and obtains the first solution; Swollen flow pattern gel dissolves in silicone oil, is obtained swollen flow pattern gelating soln by another aspect.Then swollen flow pattern gelating soln is poured in the first solution, and add polynite as additive, under mechanical agitation, obtain the solution mixed, add, gained liquid is poured in mould, foam under room temperature.After treating product foaming completely, carry out aftertreatment to it: heat up deeply-curing in baking oven, solidification value is 250 DEG C, and set time is 1.5 hours, obtains intelligent energy-absorbing material.
Embodiment 3
The preparation process of the intelligent energy-absorbing material of the present embodiment is as follows:
Employing methylphenyl siloxane is body material, and poly-Union carbide A-162 is as linking agent, and two functionality acetamido silane are chainextender, stir and obtain the first solution; Swollen flow pattern gel dissolves in silicone oil, is obtained swollen flow pattern gelating soln by another aspect.Then swollen flow pattern gelating soln is poured in the first solution, and add polynite as additive, under mechanical agitation, obtain the solution mixed, add, gained liquid is poured in mould, foam under room temperature.After treating product foaming completely, carry out aftertreatment to it: heat up deeply-curing in baking oven, solidification value is 250 DEG C, and set time is 1.5 hours, obtains intelligent energy-absorbing material.
Embodiment 4
The preparation process of the intelligent energy-absorbing material of the present embodiment is as follows:
Employing dimethyl siloxane, methyl vinyl silicone are body material, positive silicic acid propyl ester, and poly-Union carbide A-162 is as linking agent, and hydroxy silicon oil is chainextender, stirs and obtains the first solution; Swollen flow pattern gel dissolves in silicone oil, is obtained swollen flow pattern gelating soln by another aspect.Then swollen flow pattern gelating soln is poured in the first solution, and add polynite as additive, under mechanical agitation, obtain the solution mixed, add, gained liquid is poured in mould, foam under room temperature.After treating product foaming completely, carry out aftertreatment to it: heat up deeply-curing in baking oven, solidification value is 250 DEG C, and set time is 1.5 hours, obtains intelligent energy-absorbing material.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a preparation method for intelligent energy-absorbing material, is characterized in that, comprises the steps:
Siloxanes, linking agent and chainextender are uniformly mixed, obtain the first solution;
By swollen flow pattern gel dissolves in solvent, obtain swollen flow pattern gelating soln;
In described first solution, add described swollen flow pattern gelating soln, the first additive respectively, obtain homogeneous reactant;
Under room temperature condition, obtain described intelligent energy-absorbing material by after the sulfuration of described homogeneous reactant, foaming.
2. the preparation method of intelligent energy-absorbing material according to claim 1, is characterized in that, described siloxanes is at least one in dimethyl siloxane, methyl vinyl silicone, methylphenyl siloxane.
3. the preparation method of intelligent energy-absorbing material according to claim 1, is characterized in that, described linking agent is tetraethoxy, positive silicic acid propyl ester, at least one in poly-Union carbide A-162; Described chainextender is bi-methoxy siloxanes, two oxyethyl group siloxanes, two functionality acetamido silane, at least one in hydroxy silicon oil.
4. the preparation method of intelligent energy-absorbing material according to claim 1, is characterized in that, described swollen flow pattern gel is prepared by following method:
Inorganic micro-and nano-particles is mixed with siloxane compound, obtains mixture;
Under the temperature condition of 40 ~ 150 DEG C, described mixture and boron compound are carried out mixing crosslinking reaction 0.5 ~ 4h, obtains shear thickening gel;
Described shear thickening gel is mixed with Second addition, obtains described swollen flow pattern gel.
5. the preparation method of intelligent energy-absorbing material according to claim 4, is characterized in that, described inorganic micro-and nano-particles is SiO
2, TiO
2, kaolin, talcum powder, minimum one in mica powder and polynite, the particle size range of described inorganic micro-and nano-particles is 50 ~ 900nm.
6. the preparation method of intelligent energy-absorbing material according to claim 4, it is characterized in that, described siloxane compound is the minimum one in dimethyl siloxane, methylphenyl siloxane, ethylsiloxane, hydroxyl siloxanes, phenyl siloxane, hydrogen-containing siloxane, oxyethyl group siloxanes.
7. the preparation method of intelligent energy-absorbing material according to claim 4, is characterized in that, the mass ratio of described inorganic micro-and nano-particles and described siloxane compound is 0.1 ~ 50:100.
8. the preparation method of intelligent energy-absorbing material according to claim 4, is characterized in that, described boron compound is at least one in boron, boron oxide, ortho-boric acid, metaboric acid, tetraboric acid, borate, boric acid ester and boron trioxide; Described borate is at least one in five boric acid two ammoniums, sodium borate decahydrate, potassium pentaborate, hypoboric acid magnesium, single lime borate; Described boric acid ester comprises the alkyl, the allyl boronate/tri-organic radical boric acid ester that are hydrolyzed into boric acid, comprise triethyl borate, triphenyl borate, boric acid three benzyl ester, tricyclohexyl borate, boric acid three (methyl-silicane ester), boric acid three tert-butyl ester, at least one in tri-alkoxy boroxin.
9. the preparation method of intelligent energy-absorbing material according to claim 4, is characterized in that, in described boron compound, the quantity of boron atom with the ratio of the quantity of active group in siloxane compound is: 1:10 ~ 10:1; Wherein, in siloxane compound, active group comprises at least one in hydroxyl, oxyethyl group, methoxyl group, carboxyl, active hydrogen, phenyl.
10. the preparation method of intelligent energy-absorbing material according to claim 4, it is characterized in that, described Second addition comprises at least one in organobentonite, castor oil derivative, aerosil, polyamide wax, and described castor oil derivative comprises at least one in hydrogenated castor oil, sulfonated castor oil, epoxidized castor oil.
The preparation method of 11. intelligent energy-absorbing materials according to claim 4, is characterized in that, the mass ratio of described additive and described shear thickening gel is between 0.5% ~ 20%.
The preparation method of 12. intelligent energy-absorbing materials according to claim 1, is characterized in that, described solvent is silicone oil; Described first additive is polynite.
The preparation method of 13. intelligent energy-absorbing materials according to claim 1, is characterized in that, described linking agent with the quality of siloxanes than scope is: 0.5% ~ 20%, and the quality of chainextender and siloxanes is 0.5% ~ 20% than scope.
The intelligent energy-absorbing material that the preparation method of 14. 1 kinds of intelligent energy-absorbing materials as described in claim 1 ~ 13 any one prepares.
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| CN106751727A (en) * | 2016-12-27 | 2017-05-31 | 中物功能材料研究院有限公司 | A kind of polyurethane vibration-absorptive material and preparation method thereof |
| CN108329694A (en) * | 2018-01-31 | 2018-07-27 | 上海璞临医疗科技有限公司 | A kind of high-transparency and high-strength silica gel of cardiovascular model and preparation method thereof |
| CN108342072A (en) * | 2017-01-25 | 2018-07-31 | 翁秋梅 | A kind of dynamic aggregation object and its application with hybrid cross-linked structure |
| CN108341974A (en) * | 2017-01-25 | 2018-07-31 | 翁秋梅 | A kind of dynamic aggregation object and its application with hybrid cross-linked structure |
| CN109401331A (en) * | 2018-10-16 | 2019-03-01 | 成都微熵科技有限公司 | A kind of energy-absorbing high-temperature silicon disulfide rubber and preparation method thereof |
| CN110564164A (en) * | 2019-09-27 | 2019-12-13 | 中国科学院长春应用化学研究所 | Waterproof polyborosiloxane shock-resistant damping material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108329694A (en) * | 2018-01-31 | 2018-07-27 | 上海璞临医疗科技有限公司 | A kind of high-transparency and high-strength silica gel of cardiovascular model and preparation method thereof |
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| CN109401331A (en) * | 2018-10-16 | 2019-03-01 | 成都微熵科技有限公司 | A kind of energy-absorbing high-temperature silicon disulfide rubber and preparation method thereof |
| CN110564164A (en) * | 2019-09-27 | 2019-12-13 | 中国科学院长春应用化学研究所 | Waterproof polyborosiloxane shock-resistant damping material and preparation method thereof |
| CN110564164B (en) * | 2019-09-27 | 2021-05-28 | 中国科学院长春应用化学研究所 | Waterproof polyborosiloxane shock-resistant damping material and preparation method thereof |
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