CN105385163A - Damping and energy absorbing material and preparation method thereof - Google Patents
Damping and energy absorbing material and preparation method thereof Download PDFInfo
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- CN105385163A CN105385163A CN201511025639.6A CN201511025639A CN105385163A CN 105385163 A CN105385163 A CN 105385163A CN 201511025639 A CN201511025639 A CN 201511025639A CN 105385163 A CN105385163 A CN 105385163A
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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
- C08K3/36—Silica
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/02—Polyureas
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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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
- C08L83/00—Compositions 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention provides a preparation method of a damping and energy absorbing material. The preparation method comprises the steps of uniformly mixing inorganic micro-nano particles and siloxane compounds, performing a mixed cross-linking reaction on an obtained mixture and boron compounds to obtain shear thickening gel, and mixing the shear thickening gel with an additive to prepare the damping and energy absorbing material. The damping and energy absorbing material can spontaneously change into a soft state from a hard state when being subjected to an impact effect, and energy can be absorbed during the process so as to effectively realize a protective effect.
Description
Technical field
The present invention relates to technical field of function materials, particularly a kind of damping energy-absorbing material 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.
Summary of the invention
Based on this, be necessary to provide a kind of method can preparing the good damping energy-absorbing material of damping effect.
In addition, a kind of damping energy-absorbing material is also provided.
A preparation method for damping energy-absorbing material, comprises the steps:
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 damping energy-absorbing material.
Wherein in an embodiment, described electrodeless micro-and nano-particles is SiO
2, TiO
2, kaolin, talcum powder, minimum one in mica powder and polynite, the particle size range of inorganic micro-and nano-particles is 50 ~ 900nm.
Wherein in an embodiment, described siloxane compound is the minimum one in dimethyl siloxane, methylphenyl siloxane, ethylsiloxane, hydroxyl siloxanes, phenyl siloxane, hydrogen-containing siloxane, oxyethyl group siloxanes.
Wherein in an embodiment, the mass ratio of described inorganic micro-and nano-particles and described siloxane compound is 0.1 ~ 50:100.
Wherein in an embodiment, 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.
Wherein in an embodiment, 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.
Wherein in an embodiment, described additive comprises at least one in organobentonite, castor oil derivative, modified polyurea compound, polyolefin fine particle, aerosil, polyamide wax, and described castor oil derivative comprises at least one in hydrogenated castor oil, sulfonated castor oil, epoxidized castor oil.
Wherein in an embodiment, the mass ratio of described additive and described shear thickening gel is between 0.5% ~ 20%.
Wherein in an embodiment, described inorganic micro-and nano-particles is mixed by powerful mechanical stirring or ultrasonic wave with siloxane compound, described powerful mechanical stirring implementation comprises employing intermittent mixing equipment and continuous-blending equipment, described intermittent mixing equipment comprises change can mixer, double planetary mixer, conical screw mixer, ribbon blender, both arms or blade-type mixer, described 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, the velocity range of described stirring is 200 ~ 1000 revs/min, and ultrasonic disperse power range is 0.1 ~ 10kW.
A kind of damping energy-absorbing material prepared by the preparation method of above-mentioned damping energy-absorbing material.
The preparation method of above-mentioned damping energy-absorbing material is simple to operate, is easy to suitability for industrialized production.Above-mentioned damping energy-absorbing material 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 described shear thickening gel is mixed with additive, prepare damping energy-absorbing material, above-mentioned damping energy-absorbing material 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.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of the damping energy-absorbing material of an embodiment.
Embodiment
Mainly in conjunction with the drawings and the specific embodiments damping energy-absorbing material and preparation method thereof is described in further detail below.
As shown in Figure 1, the preparation method of the damping energy-absorbing material of an embodiment, comprises the steps:
Step S110: inorganic micro-and nano-particles is mixed with siloxane compound, obtains mixture;
Wherein, described electrodeless 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 additive by described shear thickening gel, obtains described damping energy-absorbing material.
Wherein, described additive comprises at least one in organobentonite, castor oil derivative, modified polyurea compound, polyolefin fine particle, aerosil, polyamide wax.
Wherein, the mass ratio of described additive and described shear thickening gel is between 0.5% ~ 20%.
Above-mentioned damping energy-absorbing material 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 (macromolecule matrix comprises urethane, ethylene-vinyl acetate copolymer, rubber etc.), prepare damping energy-absorbing material, above-mentioned damping energy-absorbing material 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.
A kind of damping energy-absorbing material prepared by the preparation method of above-mentioned damping energy-absorbing material.Because this damping energy-absorbing material adopts above-mentioned preparation method to prepare, above-mentioned damping energy-absorbing material is made to have high performance.
Be below specific embodiment part:
Embodiment 1
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be the SiO of 300nm by particle diameter
2nanoparticle dispersion in dimethyl siloxane, wherein SiO
2the mass ratio of nanoparticle and dimethyl siloxane is 0.1:100, the powerful mechanical stirring of employing stirring speed 500rpm, churning time is 2h mixing, then the product mixed is mixed with ortho-boric acid, at 100 DEG C, mix crosslinking reaction 2h, initially be there is the gel of shear thickening performance, then gel is mixed with organobentonite, to improve its performance, obtain described damping energy-absorbing material.
Embodiment 2
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be the TiO of 50nm by particle diameter
2nanoparticle dispersion in methylphenyl siloxane, wherein TiO
2the mass ratio of nanoparticle and methylphenyl siloxane is 50:100, the powerful mechanical stirring of employing stirring speed 200rpm, churning time is 2h mixing, then the product mixed is mixed with metaboric acid, at 40 DEG C, mix crosslinking reaction 4h, initially be there is the gel of shear thickening performance, then gel is mixed with castor oil derivative, to improve its performance, obtain described damping energy-absorbing material.
Embodiment 3
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be that the Dispersion of Kaolin of 500nm is in methylphenyl siloxane by particle diameter, wherein the mass ratio of kaolin and ethylsiloxane is 25:100, ultrasonication, then the product mixed is mixed with boron oxide, at 80 DEG C, mix crosslinking reaction 2h, initially be there is the gel of shear thickening performance, then by gel and modified polyurea compound, to improve its performance, obtain described damping energy-absorbing material.
Embodiment 4
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be that the talcum powder of 900nm is distributed in hydroxyl siloxanes by particle diameter; wherein the mass ratio of talcum powder and hydroxyl siloxanes is 30:100; the powerful mechanical stirring of employing stirring speed 200rpm; churning time is 2h mixing, is then mixed with triethyl borate by the product mixed, at 50 DEG C, mixes crosslinking reaction 3h; initially be there is the gel of shear thickening performance; again gel is mixed with polyolefin fine particle, to improve its performance, obtain described damping energy-absorbing material.
Embodiment 5
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be that the mica powder of 900nm is distributed in phenyl siloxane by particle diameter, wherein the mass ratio of mica powder and phenyl siloxane is 40:100, ultrasonication, then the product mixed is mixed with five boric acid two ammoniums, at 50 DEG C, mix crosslinking reaction 3h, initially be there is the gel of shear thickening performance, then gel is mixed with aerosil, to improve its performance, obtain described damping energy-absorbing material.
Embodiment 6
The preparation process of the damping energy-absorbing material of the present embodiment is as follows:
First be that the polynite of 800nm is distributed in oxyethyl group siloxanes by particle diameter, wherein the mass ratio of polynite and oxyethyl group siloxanes is 50:100, ultrasonication, then the product mixed is mixed with tricyclohexyl borate, at 80 DEG C, mix crosslinking reaction 3h, initially be there is the gel of shear thickening performance, then gel is mixed with polyamide wax, to improve its performance, obtain described damping 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 (10)
1. a preparation method for damping energy-absorbing material, is characterized in that, comprises the steps:
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 damping energy-absorbing material.
2. the preparation method of damping energy-absorbing material according to claim 1, is characterized in that, described electrodeless 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.
3. the preparation method of damping energy-absorbing material according to claim 1, 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.
4. the preparation method of damping energy-absorbing material according to claim 1, is characterized in that, the mass ratio of described inorganic micro-and nano-particles and described siloxane compound is 0.1 ~ 50:100.
5. the preparation method of damping energy-absorbing material according to claim 1, 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.
6. the preparation method of damping energy-absorbing material according to claim 1, 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.
7. the preparation method of damping energy-absorbing material according to claim 1, it is characterized in that, described additive 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.
8. the preparation method of damping energy-absorbing material according to claim 7, is characterized in that, the mass ratio of described additive and described shear thickening gel is between 0.5% ~ 20%.
9. the preparation method of damping energy-absorbing material according to claim 1, it is characterized in that, described inorganic micro-and nano-particles is mixed by powerful mechanical stirring or ultrasonic wave with siloxane compound, described powerful mechanical stirring implementation comprises employing intermittent mixing equipment and continuous-blending equipment, described intermittent mixing equipment comprises change can mixer, double planetary mixer, conical screw mixer, ribbon blender, both arms or blade-type mixer, described 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, the velocity range of described stirring is 200 ~ 1000 revs/min, and ultrasonic disperse power range is 0.1 ~ 10kW.
10. the damping energy-absorbing material for preparing of the preparation method of a damping energy-absorbing material as claimed in any one of claims 1 to 9 wherein.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106750132A (en) * | 2016-12-30 | 2017-05-31 | 中物功能材料研究院有限公司 | A kind of polyurethane foam vibration-absorptive material and preparation method thereof |
| CN107043450A (en) * | 2016-12-30 | 2017-08-15 | 中物功能材料研究院有限公司 | A kind of microcellular polyurethane elastomer vibration-absorptive material 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 |
| CN108671528A (en) * | 2018-06-19 | 2018-10-19 | 深圳市思创新材科技有限公司 | Protect backpiece |
| CN108720124A (en) * | 2018-06-19 | 2018-11-02 | 深圳市思创新材科技有限公司 | Protect knee-pad |
| CN108992907A (en) * | 2018-06-19 | 2018-12-14 | 深圳市思创新材科技有限公司 | Protect shoulder protector |
| CN109354761A (en) * | 2018-10-31 | 2019-02-19 | 湖南御邦华安新材料科技有限公司 | EVA base cushioning materials and preparation method thereof |
| CN109438666A (en) * | 2018-10-31 | 2019-03-08 | 湖南御邦华安新材料科技有限公司 | Low temperature resistant, anti-ballistic materials and its preparation method and application |
| CN109666219A (en) * | 2018-12-14 | 2019-04-23 | 万华化学集团股份有限公司 | Polypropylene/shear thickening gel complex material and its application in bumper |
| CN109944074A (en) * | 2019-02-26 | 2019-06-28 | 东华大学 | A kind of shear thickening fluid soft stab-proof fabric |
| 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 |
| CN111117254A (en) * | 2020-01-03 | 2020-05-08 | 南昌航空大学 | Method for preparing high-molecular gel with impact resistance based on shear thickening effect |
| CN111171494A (en) * | 2018-11-12 | 2020-05-19 | 中国科学院化学研究所 | Impact-resistant shear-thickening polyurethane hydrogel and preparation method thereof |
| CN112321831A (en) * | 2020-11-26 | 2021-02-05 | 济宁学院 | Preparation method of colorless transparent shear thickening methyl silicone oil |
| CN114434721A (en) * | 2022-02-09 | 2022-05-06 | 北京中科力信科技有限公司 | Preparation method of gradient type foam buffer material for individual soldier bulletproof equipment and buffer material |
| CN114854211A (en) * | 2022-03-09 | 2022-08-05 | 北京国电富通科技发展有限责任公司 | Mechanically-reinforced organic silicon gel and preparation method thereof |
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