CN107474544A - A kind of lightweight shear thickening gel and preparation method thereof - Google Patents
A kind of lightweight shear thickening gel and preparation method thereof Download PDFInfo
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- CN107474544A CN107474544A CN201710756467.2A CN201710756467A CN107474544A CN 107474544 A CN107474544 A CN 107474544A CN 201710756467 A CN201710756467 A CN 201710756467A CN 107474544 A CN107474544 A CN 107474544A
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- shear thickening
- thickening gel
- dimethyl silicone
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The present invention relates to a kind of lightweight shear thickening gel, the raw material of the shear thickening gel includes following parts by weight：800~1500 parts of dimethyl silicone polymer, 50~200 parts of tiny balloon, 60~150 parts of boric acid, 30~120 parts of SiO 2 powder.The invention also discloses the method for preparing the shear thickening gel, is specially：The boric acid, the SiO 2 powder and the tiny balloon are added in the dimethyl silicone polymer, stirs, is mixed and made into base-material；The base-material is dissolved in organic solvent, produced.Lightweight shear thickening gel of the present invention is modified traditional shear thickening gel using tiny balloon so that shear thickening gel total quality is slim and graceful, and viscosity reduces.Into sample, the protection effect that with the addition of tiny balloon is remarkably reinforced the shear thickening gel application of homogenous quantities.The preparation method that the present invention uses, it is simple to operate, can large-scale promotion in commercial Application.
Description
Technical field
The present invention relates to belong to polymeric material field, and in particular to a kind of lightweight shear thickening based on tiny balloon is coagulated
Glue and its preparation method.
Background technology
Shear thickening gel is a kind of new intelligent ballistic resistant material, under normal conditions in fluid state, when by a high speed
When shearing or external impacts, the viscosity and intensity of material can improve immediately, are class solid-state by flowing state transition, reach defense of resistance to impact
Effect.U.S. N.J.Wagner et al. proposes to prepare the conception of Protective armor using this shear thickening system first, and
The nano silicon that have studied different-grain diameter is dispersed in the shear flow denaturation of polyethylene glycol system.D3O companies of Britain in 2005
A kind of dilatancy foam with shear thickening ability is developed, and is applied to sportswear protector, such as anorak, is rubbed
Motorcycle clothes, bicycle riding apparel, aquatic sports clothes etc., and police, military protective equipment etc..
Current prior art, shear thickening system are divided into two kinds mostly, and one kind is dispersed in poly- second by nano silicon
In the system of glycol, under high speed shear speed, because hydrogen bond action forms grain between nano SiO 2 particle and polyethylene glycol
Submanifold, cause whole system that there is class solid-state behavior under high shear rate, so as to have good protection effect.It is another
It is to utilize boride modified polyorganosiloxane or hydroxy-terminated polysiloxane, is a kind of clay state silicon systems with shear thickening effect
High polymer material, there is obvious shock resistance and penetration-resistant energy.But shear thickening gel prepared by two methods is present
The defects of more thick and heavy, if which results in product is applied to, the personal weight of product can be aggravated, while can also improve production
The cost of product.
The content of the invention
It is an object of the invention to provide a kind of shear thickening gel of lightweight, by weight, prepares the shearing and increases
The raw material of thick gel includes following component：
Tiny balloon of the invention by adding lightweight, increase with a kind of shearing prepared by methyl-silicone oil and boric acid mixed at high speed
Thick gel, have quality slim and graceful, damping, the shock resistance of product can be effectively improved.
The dimethyl silicone polymer be 100cs dimethyl silicone polymers, one kind in 10cs dimethyl silicone polymers or
Two kinds；When two kinds of combinations that the dimethyl silicone polymer is 100cs dimethyl silicone polymers and 10cs dimethyl silicone polymers
When, obtained shear thickening gelling performance is preferable.
Preferably, when the mass ratio of the 100cs dimethyl silicone polymers and the 10cs dimethyl silicone polymers is 1:
When 0.2~1.2, effect is more excellent；More preferably 1:0.4~0.9；When 100cs dimethyl silicone polymers and the poly- diformazans of 10cs
The mass ratio of radical siloxane is 7:When 6, effect is optimal.
Wherein, 100cs dimethyl silicone polymers refer specifically to glue with 100cs, 100cs in the 10cs dimethyl silicone polymers
Degree, both raw materials can directly purchase acquisition.
The tiny balloon is 3M tiny balloons；One kind in ceramic microsphere and glass microsphere of the tiny balloon or
Two kinds；Present invention preferably employs glass microsphere.
The particle diameter of the silica is 50-800nm, preferably 100-500nm.
Preferred scheme as the present invention, there is provided a kind of shear thickening gel, by weight, prepare the shear thickening
The raw material of gel includes following component：
It is a further object of the present invention to provide a kind of method for preparing any of the above-described shear thickening gel, described poly-
The boric acid, the SiO 2 powder and the tiny balloon are added in dimethyl siloxane, stirs, is mixed and made into base-material；
The base-material is dissolved in organic solvent, produced.
The stirring, with 60-80r/min speed, stirs 2~5h under 120~200 DEG C of temperature conditionss.
The present invention uses mixed at high speed mode, is preferentially realized using high-speed shearing machine.Mixed at high speed not only ensure that product
Denseness, again accelerate reaction speed.
Further, the preparation method is specially：Boric acid is added in 100cs dimethyl silicone polymers, 120~
At a temperature of 200 DEG C, 1~2h is stirred, 10cs dimethyl silicone polymers and SiO 2 powder is added, continues 2~3h of stirring,
It is mixed and made into base-material；The base-material is dissolved in organic solvent, produced.
Organic solvent dissolves base-material described in 20~50g described in per 100mL.
Wherein, the organic solvent is selected from one or both of isopropanol, dimethicone.
Lightweight shear thickening gel of the present invention is modified traditional shear thickening gel using tiny balloon so that shearing
Thickened gel total quality is slim and graceful, and viscosity reduces.The shear thickening gel application of homogenous quantities with the addition of tiny balloon into sample
Protection effect be remarkably reinforced.The preparation method that the present invention uses, it is simple to operate, can large-scale promotion in commercial Application.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
100cs dimethyl silicone polymers, 10cs dimethyl silicone polymers buy the import in DOW CORNING in following examples
Siloxanes；
It is glass microsphere that 3M tiny balloons, which use, in following examples.
Embodiment 1
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 100nm
Embodiment 2
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 100nm
Embodiment 3
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 200nm
Embodiment 4
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 300nm
Embodiment 5
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 400nm
Embodiment 6
By weight, the present embodiment is dissolved in organic solvent to prepare a kind of raw material of shear thickening gel by following component
Composition：
Wherein, silica average grain diameter is 500nm
Embodiment 7
The present embodiment is the method for preparing shear thickening gel described in embodiment 1.
Specially：Boric acid is added in 100cs dimethyl silicone polymers, then stirred in the cutter of 150 DEG C of temperature
1h, adds 10cs dimethyl silicone polymer and silica continues to stir 2h, is mixed and made into base-material；
500mL isopropanols are taken, add 100g base-materials, mixes and forms shear thickening gel.
Embodiment 8
The present embodiment is the method for preparing shear thickening gel described in embodiment 2.
Specially：Boric acid and 3M tiny balloons are added in 100cs dimethyl silicone polymers, then in 150 DEG C of temperature
1h is stirred in cutter, 10cs dimethyl silicone polymer is added and silica continues to stir 2h, be mixed and made into base-material；
500mL isopropanols are taken, add 100g base-materials, mixes and forms shear thickening gel.
Embodiment 9
The present embodiment is the method for preparing shear thickening gel described in embodiment 3.
Specially：Boric acid and 3M tiny balloons are added in 100cs dimethyl silicone polymers, then in 160 DEG C of temperature
1.5h is stirred in cutter, 10cs dimethyl silicone polymer is added and silica continues to stir 2h, be mixed and made into base-material；
500mL isopropanols are taken, add 150g base-materials, mixes and forms shear thickening gel.
Embodiment 10
The present embodiment is the method for preparing shear thickening gel described in embodiment 4.
Specially：Boric acid and 3M tiny balloons are added in 100cs dimethyl silicone polymers, then in 170 DEG C of temperature
2h is stirred in cutter, 10cs dimethyl silicone polymer is added and silica continues to stir 2h, be mixed and made into base-material；
500mL isopropanols are taken, add 200g base-materials, mixes and forms shear thickening gel.
Embodiment 11
The present embodiment is the method for preparing shear thickening gel described in embodiment 5.
Specially：Boric acid and 3M tiny balloons are added in 100cs dimethyl silicone polymers, then in 170 DEG C of temperature
2h is stirred in cutter, 10cs dimethyl silicone polymer is added and silica continues to stir 2.5h, be mixed and made into base-material；
500mL isopropanols are taken, add 250g base-materials, mixes and forms shear thickening gel.
Embodiment 12
The present embodiment is the method for preparing shear thickening gel described in embodiment 6.
Specially：Boric acid and 3M tiny balloons are added in 100cs dimethyl silicone polymers, then in 180 DEG C of temperature
2h is stirred in cutter, 10cs dimethyl silicone polymer is added and silica continues to stir 2h, be mixed and made into base-material；
500mL isopropanols are taken, add 250g base-materials, mixes and forms shear thickening gel.
Experimental example 1
Shear thickening gel made from 7~embodiment of embodiment 12 is subjected to shock resistance test.Weigh 200g shearings
Thickened gel, it is put into sample cell, and blank group is set, does not place sample.
Sample cell is force snesor immediately below, and the steel ball of a 500g mass is fallen from 1m upper vertical air,
Fall into sample cell, tested respectively by force snesor.The data surveyed such as table 1 below by force snesor.
Table 1
| Sequence number | Counter sample | Force snesor test data (N) |
| 1 | N.s | 178.53 |
| 2 | Embodiment 7 | 4.25 |
| 3 | Embodiment 8 | 2.18 |
| 4 | Embodiment 9 | 1.86 |
| 5 | Embodiment 10 | 1.12 |
| 6 | Embodiment 11 | 0.55 |
| 7 | Embodiment 12 | 1.76 |
From experimental data as can be seen that after having used shear thickening gel as padded coaming, the impact to power is substantially dropped
It is low, while to the addition of the shear thickening gel of tiny balloon, under shock resistance buffer protection, there is more preferably effect.
Although above the present invention is made to retouch in detail with general explanation, embodiment and experiment
State, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, are belonged to claimed
Scope.
Claims (10)
1. a kind of lightweight shear thickening gel, it is characterised in that by weight, prepare the raw material bag of the shear thickening gel
Include following component：
2. shear thickening gel according to claim 1, it is characterised in that the viscosity of the dimethyl silicone polymer is
10cs~100cs；The preferably mixture of 100cs dimethyl silicone polymers and 10cs dimethyl silicone polymers.
3. shear thickening gel according to claim 2, it is characterised in that 100cs poly dimethyls silicon in the mixture
The mass ratio of oxygen alkane and 10cs dimethyl silicone polymers is 1:0.2~1.2, preferably 1:0.4~0.9, more preferably 7:
6。
4. according to any described shear thickening gel of claims 1 to 3, it is characterised in that the tiny balloon is that 3M is hollow
Microballoon；
And/or the tiny balloon is selected from one or both of ceramic microsphere or glass microsphere.
5. according to any described shear thickening gel of Claims 1 to 4, it is characterised in that the particle diameter of the silica is
50-800nm, preferably 100-500nm.
6. shear thickening gel according to claim 1, it is characterised in that by weight, prepare the shear thickening
The raw material of gel includes following component：
7. the preparation method of any shear thickening gel of claim 1~6, it is characterised in that in the poly dimethyl silicon
The boric acid, the SiO 2 powder and the tiny balloon are added in oxygen alkane, stirs, is mixed and made into base-material；By the base
Material is dissolved in organic solvent, is produced.
8. preparation method according to claim 7, it is characterised in that it is described to stir at a temperature of 120~200 DEG C, with
60-80r/min speed, stir 2~5h.
9. the preparation method according to claim 7 or 8, it is characterised in that the preparation method is specially：Boric acid is added
In 100cs dimethyl silicone polymers, at a temperature of 120~200 DEG C, 1~2h is stirred, adds 10cs dimethyl silicone polymers
And SiO 2 powder, continue 2~3h of stirring, be mixed and made into base-material；The base-material is dissolved in organic solvent, produced.
10. according to any described preparation method of claim 7~9, it is characterised in that the organic solvent be selected from isopropanol,
One or both of dimethicone；
Preferably, organic solvent described in every 100mL dissolves base-material described in 20~50g.
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| CN201710756467.2A CN107474544B (en) | 2017-08-29 | 2017-08-29 | Light shear thickening gel and preparation method thereof |
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Cited By (6)
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| CN109280404A (en) * | 2018-10-31 | 2019-01-29 | 湖南御邦华安新材料科技有限公司 | Shock-absorbing composite material and its preparation method and application |
| 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 |
| CN109504090A (en) * | 2018-10-16 | 2019-03-22 | 成都微熵科技有限公司 | A kind of fire-retardant shock peening gel of inhibition cold flow properties and its preparation method and application |
| 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 |
| 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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504090A (en) * | 2018-10-16 | 2019-03-22 | 成都微熵科技有限公司 | A kind of fire-retardant shock peening gel of inhibition cold flow properties and its preparation method and application |
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| CN109280404A (en) * | 2018-10-31 | 2019-01-29 | 湖南御邦华安新材料科技有限公司 | Shock-absorbing composite material and its preparation method and application |
| 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 |
| 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 |
| 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 |
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