CN104151833A - Preparation method of graphene/silicon rubber pressure-sensitive conductive composite - Google Patents

Preparation method of graphene/silicon rubber pressure-sensitive conductive composite Download PDF

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CN104151833A
CN104151833A CN201310538043.0A CN201310538043A CN104151833A CN 104151833 A CN104151833 A CN 104151833A CN 201310538043 A CN201310538043 A CN 201310538043A CN 104151833 A CN104151833 A CN 104151833A
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graphene
silicon rubber
ultrasonic
preparation
thf
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董建
安瑞冰
姬素春
徐玉良
陈红余
卫振华
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Taishan Medical University
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Taishan Medical University
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Abstract

The invention relates to a preparation method of a graphene/silicon rubber pressure-sensitive conductive composite and belongs to the technical field of composite preparation. The preparation method comprises the following steps: dispersing the graphene used as a packing into a silicon rubber matrix by using an ultrasonic-assisted solution mixing method, and furthermore, preparing the graphene/silicon rubber pressure-sensitive conductive composite by using a high-temperature sulphidization method. The graphene has a high diameter-thickness ratio, and a conductive network can be formed in silicon rubber by using a relatively small quantity of graphene through the ultrasonic-assisted solution mixing and high-temperature sulphidization methods, so that the percolation threshold of the graphene/silicon rubber composite is relatively low; in addition, the system is sensitive to pressure so as to achieve a remarkable positive piezoresistive effect. The composite provided by the invention is widely applied to the fields of antistatic rubber, electromagnetic shielding products and pressure sensors.

Description

A kind of preparation method of graphene/silicon rubber pressure sensitive conductive matrix material
Technical field
The present invention relates to a kind of preparation method of graphene/silicon rubber pressure sensitive conductive matrix material, particularly, is a kind of preparation method of graphene/silicon rubber pressure sensitive conductive matrix material of low percolation threshold, belongs to matrix material preparing technical field.
Background technology
Polymer base conductive composite material normally adds a kind of conductive filler material in polymeric matrix, then adopts the compound heterogeneous composite material obtaining of physics or chemical process.As a kind of emerging functional materials, polymer base conductive composite material not only has conducting function, has kept again the characteristic of macromolecular material, and can regulate in the larger context electricity and the mechanical property of material.Existing conductive filler material mostly is carbon black, acetylene carbon black etc., and loading level is large, and percolation threshold is high, and the intensity to matrix material and toughness infringement are large.And its piezoresistive effect of the matrix material of high conductive fill amount is not obvious.
Graphene is to have sp 2the Two-dimensional Carbon atomic crystal of hybridized orbital, the Andre Geim by Univ Manchester UK in 2004 and Konstantin Novoselov find and prove stable existence.Graphene is the elementary cell of constructing zero dimension soccerballene, one dimension carbon nanotube, three-dimensional graphite, has the performances such as excellent mechanics, electricity and calorifics, and specific surface area is large, and raw material is easy to get, preparation technology and workability are also constantly improving.Graphene is widely used in the preparation of polymer-based carbon carbon nano-composite material as a kind of novel high quality filler.Due to the high specific surface area of Graphene and radius-thickness ratio, can greatly reduce loading level using it as conductive filler material, thereby significantly reduce the percolation threshold of system, make matrix material there is the characteristic of obvious piezoresistive effect and lightweight.
The method of preparing at present graphene/polymer nano composite material mainly contains: solution blended process, mechanical blending method and situ aggregation method.But aforesaid method all has some limitations, in nano composite material as standby in mechanical blending legal system, Graphene disperses bad, reunites obviously; Situ aggregation method more complicated, and the existence of Graphene can change polymerization kinetics, and the molecular weight of polymkeric substance also can reduce; Solution blended process dispersion effect is better, but needs a large amount of solvents, and often by the mode of solvent flashing, solvent is removed, so cost is high and big for environment pollution.Therefore, solving the dispersion of Graphene in polymeric matrix is a difficult problem preparing graphene/polymer nano composite material.
Silicon rubber is a kind of macromolecular elastomer taking Si-O-Si as main chain, there is the performance of a series of excellences such as high-low temperature resistant, weather-proof, resistance to ozone, chemicals-resistant, highly air-permeable and physiology inertia, be therefore widely used in every field such as the industry such as aerospace, electric, chemical instruments, automobile, machinery and health care, daily lifes.
Conductive filler material is dispersed in electrically insulating silicone rubber and prepares silicone rubber based conducing composite material, is an increasingly active branch of conductive polymeric composite field.Compared with general electro-conductive material, the advantage of conductive silicon rubber is that hardness is low, high-low temperature resistant (70 to 200 DEG C), ageing-resistant, good processability, be particularly suitable for manufacturing the conductive articles complex-shaped, structure is tiny, at light-emitting device, battery, electromagnetic shielding, electrostatic dissipation, the aspects such as load or deformation-sensor are widely used.
Summary of the invention
The object of the invention is to the difficult problem existing in graphene/polymer nano composite material preparation process, start with from improving the dispersion effect of Graphene silicon rubber matrix, a kind of method of preparing graphene/silicon rubber pressure sensitive conductive matrix material is provided.
To achieve these goals, technical scheme of the present invention is as follows.
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: comprising:
(1a) adopt the method for chemical oxidation to prepare graphite oxide: natural flake graphite, Potassium Persulphate and Vanadium Pentoxide in FLAKES are joined in the vitriol oil, ultrasonic dispersion 5min, 80 DEG C of oil bath lower magnetic forces stir 6h.After decompress filter washing by filter cake vacuum-drying, grinding.Dried composition is put into beaker, add the vitriol oil ultrasonic being uniformly dispersed, slowly add potassium permanganate and electric stirring 4h under ice-water bath protection; After adding deionized water, mixed solution is moved in water-bath and keeps 40 DEG C to continue to stir 2h.Stop stirring and adding the deionized water of 3~10 times of amounts, then add hydrogen peroxide, obtain glassy yellow graphite oxide suspension.By the sedimentation of graphite oxide suspension, centrifuge washing, to approaching neutrality, 40 DEG C of vacuum-dryings, grind.
(1b) high temperature reduction graphite oxide: graphite oxide powder is placed in to the silica tube of an end closure, is filled with appropriate argon gas after vacuumizing, silica tube is inserted in the tube type resistance furnace of 1050 DEG C and carry out high temperature reduction 30 seconds, obtain graphene powder.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 0.5~5.0 weight part ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material:
In dried sizing material, add 2 of 0.5~2.0 mass parts, 5-dimethyl-2,5-bis(t-butylperoxy) hexane (two-2,5) is as vulcanizing agent, in mill mixing evenly.Rubber unvulcanizate is put into the mould of preheating, 170 DEG C of one step cure 20min on vulcanizing press, 200 DEG C of post vulcanization 4h, prepare product of the present invention.
The present invention is based on the excellent properties of Graphene in electricity and terms of mechanics, using Graphene as filler, adopt ultrasonic assisted solution hybrid system that Graphene is distributed in silicon rubber matrix, and then adopt high temperature vulcanized mode to prepare graphene/silicon rubber pressure sensitive conductive matrix material.Because Graphene has high radius-thickness ratio, mix and then high temperature vulcanized mode by ultrasonic assisted solution, the Graphene of small amount just can form conductive network in silicon rubber, cause the percolation threshold of graphene/silicon rubber composite lower, and this system, to presser sensor, presents significantly positive piezoresistive effect.
This beneficial effect of the invention is:
(1) the present invention adopts ultrasonic assisted solution to mix method has realized dispersed in methyl vinyl silicone rubber matrix of Graphene.Removing when solvent, adopt innovatively the ultrasonic cleaner of temp. controllable to replace the water-bath of Rotary Evaporators, in ultrasonic dispersion rotary evaporation remove mixed solution in tetrahydrofuran (THF).The method both can prevent that Graphene from reuniting removing in the process of solvent, again can be by solvent recuperation use again, reduce costs and avoided the pollution of solvent flashing to environment in traditional solution mixing method.
(2) adopt the method for high temperature reduction graphite oxide to obtain graphene powder, its Graphene obtaining compared with chemical reduction method is more conducive to be scattered in methyl vinyl silicone rubber matrix by solution mixing method.
(3) obtained low percolation threshold (1.9wt%) and there is the graphene/silicon rubber conducing composite material of piezoresistive effect.
(4) mechanical property based on Graphene excellence and high surface area, target matrix material (≤5wt%) in the situation that Graphene loading level is very low can obtain excellent mechanical property.While being 5wt% as Graphene loading level, the tensile strength of target matrix material reaches 3.07MPa, and the tensile strength that does not add the silicon rubber of Graphene has improved 1435%.Graphene has improved significantly the mechanical property of silicon rubber in serving as conductive filler material.
(5) this invention material has wide practical use in antistatic rubber, electromagnetic shielding article and art of pressure sensors.
Brief description of the drawings
Fig. 1 is the stereoscan photograph of graphene powder in embodiment of the present invention 1-5.
Fig. 2 is the transmission electron microscope photo of Graphene in embodiment of the present invention 1-5
Fig. 3 is the SEM photo of the graphene/silicon rubber composite in the embodiment of the present invention 2.
Fig. 4 is the X-ray diffractogram of Graphene in the embodiment of the present invention 2, silicon rubber matrix and graphene/silicon rubber composite.
Fig. 5 is that the volume specific resistance logarithm of graphene/silicon rubber composite in the embodiment of the present invention is with the change curve of Graphene loading level.
Fig. 6 be in the embodiment of the present invention 2 graphene/silicon rubber composite relative resistance with the change curve of pressure.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, to better understand the present invention.
Embodiment 1
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: comprising:
(1a) adopt the method for chemical oxidation to prepare graphite oxide: natural flake graphite, Potassium Persulphate and Vanadium Pentoxide in FLAKES are joined in the vitriol oil, ultrasonic dispersion 5min, 80 DEG C of oil bath lower magnetic forces stir 6h.After decompress filter washing by filter cake vacuum-drying, grinding.Dried composition is put into beaker, add the vitriol oil ultrasonic being uniformly dispersed, slowly add potassium permanganate and electric stirring 4h under ice-water bath protection; After adding deionized water, mixed solution is moved in water-bath and keeps 40 DEG C to continue to stir 2h.Stop stirring and adding the deionized water of 5 times of amounts, then add hydrogen peroxide, obtain glassy yellow graphite oxide suspension.By the sedimentation of graphite oxide suspension, centrifuge washing, to approaching neutrality, 40 DEG C of vacuum-dryings, grind.
(1b) high temperature reduction graphite oxide: graphite oxide powder is placed in to the silica tube of an end closure, is filled with appropriate argon gas after vacuumizing, silica tube is inserted in the tube type resistance furnace of 1050 DEG C and carry out high temperature reduction 30 seconds, obtain graphene powder.Fig. 1 is the stereoscan photograph of graphene powder.Fig. 2 is the transmission electron microscope photo of Graphene.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 1.0 weight parts ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material:
In dried sizing material, add 2 of 1.0 mass parts, 5-dimethyl-2,5-bis(t-butylperoxy) hexane (two-2,5) is as vulcanizing agent, in mill mixing evenly.Rubber unvulcanizate is put into the mould of preheating, 170 DEG C of one step cure 20min on vulcanizing press, 200 DEG C of post vulcanization 4h, prepare product of the present invention.
Embodiment 2
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: method is with embodiment 1.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 2.0 weight parts ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material: method is with embodiment 1.
Embodiment 3
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: method is with embodiment 1.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 3.0 weight parts ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material: method is with embodiment 1.
Embodiment 4
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: method is with embodiment 1.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 4.0 weight parts ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material: method is with embodiment 1.
Embodiment 5
A preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, comprises the following steps:
(1) prepare Graphene: method is with embodiment 1.
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts (trade mark 110-2) is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 5.0 weight parts ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed to the ultrasonic dispersion of mixed solution 30min with B.Replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), then by the vacuum-drying of gained sizing material, for subsequent use.
(3) high temperature vulcanized preparation target matrix material: method is with embodiment 1.
The present invention is based on the excellent properties of Graphene in electricity and terms of mechanics, using Graphene as filler, adopt ultrasonic assisted solution hybrid system that Graphene is distributed in silicon rubber matrix, and then adopt high temperature vulcanized mode to prepare graphene/silicon rubber pressure sensitive conductive matrix material.Because Graphene has high radius-thickness ratio, mix and then high temperature vulcanized mode by ultrasonic assisted solution, the Graphene of small amount just can form conductive network in silicon rubber, cause the percolation threshold of graphene/silicon rubber composite lower, and this system, to presser sensor, presents significantly positive piezoresistive effect.
Foregoing invention scheme has realized following object:
(1) the present invention adopts ultrasonic assisted solution to mix method has realized dispersed in methyl vinyl silicone rubber matrix of Graphene.Fig. 3 is that Graphene loading level is the SEM photo of the graphene/silicon rubber composite of 2wt%, can find out that graphene uniform is dispersed in silicon rubber matrix, and not observe the coacervate of Graphene.Fig. 4 is the X-ray diffractogram of Graphene, silicon rubber matrix and graphene/silicon rubber composite, does not find the diffraction peak of Graphene in graphene/silicon rubber composite, shows Graphene favorable dispersity in silicon rubber matrix.
(2) adopt the method for high temperature reduction graphite oxide to obtain graphene powder, its Graphene obtaining compared with chemical reduction method is more conducive to be scattered in methyl vinyl silicone rubber matrix by ultrasonic assisted solution hybrid system.
(3) obtained low percolation threshold (1.9wt%) and there is the graphene/silicon rubber conducing composite material of piezoresistive effect.Fig. 5 be the volume specific resistance logarithm of graphene/silicon rubber composite with the change curve of Graphene loading level, as seen from the figure, its percolation threshold is 1.9wt%.The silicon rubber matrix that the volume specific resistance of target matrix material in the time that Graphene loading level is 5wt% do not add Graphene has reduced by 9 orders of magnitude, and electroconductibility obviously increases.Fig. 6 is the change curve of graphene/silicon rubber composite relative resistance with pressure, presents significantly positive piezoresistive effect.
(4) excellent mechanical property and the high surface area based on Graphene, target matrix material (≤5wt%) in the situation that Graphene loading level is very low can obtain excellent mechanical property.While being 5wt% as Graphene loading level, the tensile strength of target matrix material reaches 3.07MPa, and the tensile strength that does not add the silicon rubber of Graphene has improved 1435%.Graphene has improved significantly the mechanical property of silicon rubber in serving as conductive filler material.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.

Claims (1)

1. a preparation method for graphene/silicon rubber pressure sensitive conductive matrix material, is characterized in that: comprise the following steps:
(1) prepare Graphene: comprising:
(1a) adopt the method for chemical oxidation to prepare graphite oxide: natural flake graphite, Potassium Persulphate and Vanadium Pentoxide in FLAKES are joined in the vitriol oil, ultrasonic dispersion 5min, 80 DEG C of oil bath lower magnetic forces stir 6h, after decompress filter washing by filter cake vacuum-drying, grinding, dried composition is put into beaker, add the vitriol oil ultrasonic being uniformly dispersed, slowly add potassium permanganate and electric stirring 4h under ice-water bath protection; After adding deionized water, mixed solution is moved in water-bath and keeps 40 DEG C to continue to stir 2h, stop stirring and adding the deionized water of 3~10 times of amounts, add again hydrogen peroxide, obtain glassy yellow graphite oxide suspension, the sedimentation of graphite oxide suspension, centrifuge washing are extremely approached neutral, 40 DEG C of vacuum-dryings, grind;
(1b) high temperature reduction graphite oxide: graphite oxide powder is placed in to the silica tube of an end closure, is filled with appropriate argon gas after vacuumizing, silica tube is inserted in the tube type resistance furnace of 1050 DEG C and carry out high temperature reduction 30 seconds, obtain graphene powder;
(2) ultrasonic assisted solution hybrid system is prepared silicon rubber base-material:
The methyl vinyl silicone rubber of 100 weight parts is dissolved in and in tetrahydrofuran (THF), obtains silicone rubber solution A, the Graphene of 0.5~5.0 weight part ultrasonic dispersion 1h in tetrahydrofuran (THF) is obtained to graphene dispersing solution B, A is mixed with B, the ultrasonic dispersion of mixed solution 30min, replace the water-bath of Rotary Evaporators with the ultrasonic cleaner of temp. controllable, tetrahydrofuran (THF) in rotary evaporation mixed solution in ultrasonic dispersion, realizes separating of sizing material and tetrahydrofuran (THF), by the vacuum-drying of gained sizing material, for subsequent use again;
(3) high temperature vulcanized preparation target matrix material:
In dried sizing material, add 2 of 0.5~2.0 mass parts, 5-dimethyl-2,5-bis(t-butylperoxy) hexane is as vulcanizing agent, mixing even in mill, rubber unvulcanizate is put into the mould of preheating, 170 DEG C of one step cure 20min on vulcanizing press, 200 DEG C of post vulcanization 4h, prepare product of the present invention.
CN201310538043.0A 2013-10-29 2013-10-29 Preparation method of graphene/silicon rubber pressure-sensitive conductive composite Pending CN104151833A (en)

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Cited By (12)

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CN106467670A (en) * 2016-09-13 2017-03-01 杭州师范大学 A kind of preparation method of silver nanoparticle mixed fillers modified silicon rubber conducing composite material
CN106495085A (en) * 2016-10-26 2017-03-15 中南大学 Graphene filled silicon rubber composite piezoresistance sensor and its method of production
CN106810878A (en) * 2016-12-16 2017-06-09 吴中区穹窿山天仲高分子材料技术研究所 A kind of High-performance electroconductive rubber composite and preparation method thereof
CN106883609A (en) * 2017-01-18 2017-06-23 四川大学 Pressure sensitive material for high-temperature high pressure sensor and preparation method thereof
CN107488350A (en) * 2017-08-08 2017-12-19 天津大学 A kind of CNT-graphene hybridized nanometer particle and its application in silicon rubber composite material is prepared
CN109096718A (en) * 2018-06-28 2018-12-28 南通大学 A kind of vacuum bag method preparation method of ship unsaturated polyester composite
CN109294235A (en) * 2018-09-30 2019-02-01 西南大学 A kind of flexible high-frequency electromagnetic shielding material and preparation method thereof with dual network structure
CN109504093A (en) * 2018-11-19 2019-03-22 珠海市扬程玻璃制品有限公司 A kind of preparation method of conductive pressure sensitive nanometer silicon rubber
CN111019356A (en) * 2019-12-20 2020-04-17 佛山国防科技工业技术成果产业化应用推广中心 Pressure-sensitive porous conductive rubber and preparation method thereof
CN111732836A (en) * 2020-06-17 2020-10-02 东南大学 Sensor material for real-time monitoring of health condition of high-speed railway ballastless track plate and preparation method thereof
CN113008490A (en) * 2021-02-02 2021-06-22 清华大学 Leakage self-detection rubber sealing element, preparation method and leakage detection method
CN114085536A (en) * 2021-12-09 2022-02-25 苏州力达精密配件有限公司 Antistatic non-fading rubber and preparation method thereof

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CN106467670B (en) * 2016-09-13 2019-03-29 杭州师范大学 A kind of preparation method of silver nanoparticle mixed fillers modified silicon rubber conducing composite material
CN106467670A (en) * 2016-09-13 2017-03-01 杭州师范大学 A kind of preparation method of silver nanoparticle mixed fillers modified silicon rubber conducing composite material
CN106495085A (en) * 2016-10-26 2017-03-15 中南大学 Graphene filled silicon rubber composite piezoresistance sensor and its method of production
CN106810878A (en) * 2016-12-16 2017-06-09 吴中区穹窿山天仲高分子材料技术研究所 A kind of High-performance electroconductive rubber composite and preparation method thereof
CN106883609A (en) * 2017-01-18 2017-06-23 四川大学 Pressure sensitive material for high-temperature high pressure sensor and preparation method thereof
CN106883609B (en) * 2017-01-18 2020-08-04 四川大学 Pressure sensitive material for high-temperature and high-pressure sensor and preparation method thereof
CN107488350A (en) * 2017-08-08 2017-12-19 天津大学 A kind of CNT-graphene hybridized nanometer particle and its application in silicon rubber composite material is prepared
CN109096718A (en) * 2018-06-28 2018-12-28 南通大学 A kind of vacuum bag method preparation method of ship unsaturated polyester composite
CN109294235A (en) * 2018-09-30 2019-02-01 西南大学 A kind of flexible high-frequency electromagnetic shielding material and preparation method thereof with dual network structure
CN109504093A (en) * 2018-11-19 2019-03-22 珠海市扬程玻璃制品有限公司 A kind of preparation method of conductive pressure sensitive nanometer silicon rubber
CN111019356A (en) * 2019-12-20 2020-04-17 佛山国防科技工业技术成果产业化应用推广中心 Pressure-sensitive porous conductive rubber and preparation method thereof
CN111732836A (en) * 2020-06-17 2020-10-02 东南大学 Sensor material for real-time monitoring of health condition of high-speed railway ballastless track plate and preparation method thereof
CN113008490A (en) * 2021-02-02 2021-06-22 清华大学 Leakage self-detection rubber sealing element, preparation method and leakage detection method
CN113008490B (en) * 2021-02-02 2022-03-15 清华大学 Leakage self-detection rubber sealing element, preparation method and leakage detection method
CN114085536A (en) * 2021-12-09 2022-02-25 苏州力达精密配件有限公司 Antistatic non-fading rubber and preparation method thereof

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Application publication date: 20141119