CN106750592B - A kind of conduction stalk rubber composite material and preparation method thereof - Google Patents
A kind of conduction stalk rubber composite material and preparation method thereof Download PDFInfo
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- CN106750592B CN106750592B CN201611147278.7A CN201611147278A CN106750592B CN 106750592 B CN106750592 B CN 106750592B CN 201611147278 A CN201611147278 A CN 201611147278A CN 106750592 B CN106750592 B CN 106750592B
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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
- C08L7/00—Compositions of natural rubber
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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
- C08K2201/001—Conductive additives
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
A kind of conduction stalk rubber composite material and preparation method thereof, belongs to wooden rubber composite material field.The composite material of the present invention is made from the following raw materials in parts by weight：10~30 parts of modified straw fiber, 100~120 parts of rubber, 5~30 parts of conductive filler.Preparation method：Processing is modified to modified straw fiber, conductive filler, rubber using coupling agent respectively；Mixer is preheated to certain temperature, rubber is put into mixer, is plasticated to rubber into flowing shape；Stalk fibre and conductive filler after again respectively will be coupling agent modified be put into mixer, and three kinds of materials is made to be kneaded in mixer, until material is after mixing, it is in blocks with open mill mill；Finally, the material after ageing is spread to mold, is put into vulcanizing press and carries out sulfidization molding.The present invention prepares stalk rubber composite material by being modified to agricultural crop straw；By adding conductive filler, improves the comprehensive performance of composite material and assign its electric conductivity.
Description
Technical field
The present invention relates to a kind of rubber composite materials and preparation method thereof, and in particular to a kind of conduction stalk rubber composite wood
Material and preparation method thereof, belongs to wooden rubber composite material field.
Background technology
Wooden rubber composite material is a kind of novel and multifunctional environment-friendly materials occurred in recent years, is with wood materials and rubber
Glue is raw material, is prepared using rubber processing.Keep raw material cementing by using the viscosity and mobility of rubber itself
Together, the use of adhesive had not only been avoided, but also has saved production cost and simple for process.For wooden rubber composite material
For, it is a kind of good electrical insulator, in order to allow wooden rubber composite material to obtain electric conductivity and then meet it in each neck
The application in domain, we add conductive filler into wooden rubber matrix to assign its electric conductivity.Due to wooden rubber composite wood
Rubber matrix crystallizing power in material is low, and intermolecular force is small, and free volume is big, causes its intensity, the wear-resisting and property such as tired
Can not be high, so needing that reinforcing agent is added into rubber, improve the comprehensive performance of rubber.Rubber is improved using carbon conductive filler
Comprehensive performance, while wooden rubber composite material electric conductivity can also be assigned.Generally speaking, this is to wooden rubber composite wood
Expect that the development of multifunctional performance is particularly significant.
Agricultural crop straw is a kind of higher renewable biological source of comprehensive development and utilization value.For many years, China's farming
Object stalk resource owning amount occupies first place in the world, and the annual part agricultural crop straw that removes is used as other than fertilizer, feed, fuel etc.,
Also a large amount of stalk is directly burned or is rotted, and the serious wasting of resources and environmental pollution are caused.So the present invention utilizes
Agricultural crop straw crushes, be modified and etc. stalk fibre is made, serve as rubber organic filler, and of low cost, raw material
It is easy to get.
Invention content
The brief overview about the present invention is given below, in order to provide about the basic of certain aspects of the invention
Understand.It should be appreciated that this general introduction is not the exhaustive general introduction about the present invention.It is not intended to determine the pass of the present invention
Key or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides certain concepts in simplified form,
In this, as the preamble in greater detail discussed later.
In consideration of it, according to an aspect of the present invention, the present invention is directed to propose a kind of conduction stalk rubber composite material and
Preparation method using carbon conductive filler reinforcement stalk rubber composite material, while assigning its good electric conductivity, makes it
Multifunction.
Scheme one：A kind of conduction stalk rubber composite material, is made from the following raw materials in parts by weight：Modified straw fiber 10
~30 parts, 100~120 parts of rubber, 5~30 parts of conductive filler.
Further, the sodium hydroxide solution that the modified straw fiber is 4%~9% is at 40 DEG C~80 DEG C
The agricultural crop straw managed, the agricultural crop straw are wheat stalk, rice straw or maize straw；Grain size is 60~120
Mesh.Organic filler of the biomass fiber as rubber is selected, the spies such as light, resourceful of biological material are made full use of
Property, while improving the problems such as rubber composite material hardness is small, shrinkage is big, it is improving composite technology and is reducing cost；It is logical
It crosses and alkali process is carried out to stalk fibre, contribute to the wax coat for reducing stalk surface, increase the compatibility between stalk and rubber.
Further, the conductive filler is electrically conductive graphite or conductive carbon fibre.Composite material is preferably imparted to lead
Electrically.
Further, the rubber is natural rubber or synthetic rubber.Improve natural rubber or synthetic rubber is conductive
Performance assigns its multifunctionality.
Scheme two：A kind of preparation method of conduction stalk rubber composite material is as follows：
Processing is modified to modified straw fiber, conductive filler, rubber using coupling agent respectively；Mixer is preheated,
Hopper temperature presets to certain temperature, and 100~120 parts of rubber is put into mixer, plasticates to rubber in flowing shape；Divide again
Stalk fibre and conductive filler not by 10~30 parts after coupling agent modified are put into mixer, make three kinds of materials in mixer
It is kneaded, until material is after mixing, is displayed with open mill mill 3~5 times and at room temperature；It finally, will be after ageing
Material is spread to mold, is put into vulcanizing press and is carried out sulfidization molding.
Further, the coupling agent additive amount is the 2%~5% of material.The pole on stalk fibre surface can be effectively reduced
Property, improve the compatibility of stalk fibre and rubber.
Further, the hopper temperature presets to 70 DEG C~80 DEG C.Temperature is set to reach the state that rubber flows.
Further, rubber is put into mixer, plasticate to rubber at flowing shape time be 3~5min.Make rubber
In flowing shape, various fillers and rubber matrix is contributed to uniformly to be mixed.
Further, modified straw fiber, rubber, the conductive filler mixing time in mixer are 5~8min.Make modification
Stalk fibre, conductive filler can be sufficiently mixed in rubber matrix, evenly dispersed.
Further, the pressure of the sulfidization molding is 12~13MPa, and temperature is 145 DEG C~160 DEG C.Make pressure and temperature
Degree reaches the condition of rubber curing forming, is prepared into composite material.
Further, coupling agent is double-[γ-(triethoxysilicane) propyl] tetrasulfide.Double-[γ-(triethoxysilicane)
Propyl] tetrasulfide belongs to a kind of multi-functional coupling agent, contribute to the interface cohesion for improving stalk fibre and rubber matrix, indirectly
The vulcanization for promoting rubber, improves the mechanical property of composite material.
The invention has the advantages that：
Conduction stalk rubber composite material provided by the invention prepares stalk by being modified to agricultural crop straw
Rubber composite material；By adding conductive filler, the comprehensive performance of composite material is improved, while also assigning its electric conductivity.
Specific implementation mode
The exemplary embodiment of the present invention will be hereinafter described.For clarity and conciseness, in specification
In all features of actual implementation mode are not described.It should be understood, however, that in the process for developing any this practical embodiments
In must make much decisions specific to embodiment, to realize the objectives of developer, for example, meeting and system
And those of business correlation restrictive condition, and these restrictive conditions may be changed with the difference of embodiment.
In addition, it will also be appreciated that although development is likely to be extremely complex and time-consuming, to having benefited from the disclosure of invention
Those skilled in the art for, this development is only routine task.
Embodiment 1
A kind of conduction stalk rubber composite material, is prepared from the following raw materials in parts by weight：Modified wheat stalk fibre
10 parts, 100 parts of synthetic rubber, 5 parts of electrically conductive graphite；
The sodium hydroxide solution that modified wheat stalk is 5% is in 40 DEG C of processed stalk fibres, mesh number 60
Mesh；
Synthetic rubber is made of the raw material of following parts by weight：50 parts of natural rubber, 10 parts of butadiene-styrene rubber, butadiene rubber 40
Part, 50 parts of carbon black, 1.5 parts of sulphur, 4 parts of zinc oxide, 3 parts of stearic acid, 2.5 parts of anti-aging agent, 5 parts of operation oil；
The scale size of electrically conductive graphite is 0.006mm, and grain size is 2000 mesh；
The preparation method of the conductive stalk rubber composite material is as follows：Using 3% double-[γ-(triethoxysilicane)
Propyl] tetrasulfide is modified processing to modified wheat stalk fibre, electrically conductive graphite, rubber respectively；Mixer is preheated, is expected
Bucket temperature presets to 70 DEG C, and 100 parts of synthetic rubber is put into mixer, and the 3min that plasticates is to rubber in flowing shape；Then divide
Wheat straw fiber and electrically conductive graphite not by 10 parts after coupling agent modified are put into mixer, make three kinds of materials in mixer
It is kneaded 6min, until material is after mixing, is displayed with open mill mill 3 times and at room temperature；Finally, by the object after displaying
It after material paving to mold, is put into vulcanizing press and carries out sulfidization molding, pressure 13MPa, temperature is 150 DEG C.
Embodiment 2
A kind of conduction stalk rubber composite material, has the raw material of following parts by weight to be made：Modified wheat stalk fibre
10 parts, 100 parts of synthetic rubber, 10 parts of conductive carbon fibre；
The preparation method of the conductive stalk rubber composite material is as follows：Using 4% double-[γ-(triethoxysilicane)
Propyl] tetrasulfide is modified processing to modified wheat stalk fibre, conductive carbon fibre, rubber respectively；Mixer is preheated,
Hopper temperature is 80 DEG C default, and 100 parts of synthetic rubber is put into mixer, and the 3min that plasticates is to rubber at flowing shape；Then divide
Stalk fibre and conductive carbon fibre not by 10 parts after coupling agent modified are put into mixer, and three kinds of materials is made to be mixed in mixer
7min is refined, until material is after mixing, is displayed with open mill mill 4 times and at room temperature；Finally, by the object after ageing
It after material paving to mold, is put into vulcanizing press and carries out sulfidization molding, pressure 12MPa, temperature is 150 DEG C；
For the sodium hydroxide solution that modified wheat stalk is 5% in 40 DEG C of processed stalk fibres, mesh number is 60 mesh；
The resistivity of conductive carbon fibre is 14 μ Ω m, and grain size is 200 mesh；
Synthetic rubber is made of the raw material of following parts by weight：50 parts of natural rubber, 10 parts of butadiene-styrene rubber, butadiene rubber 40
Part, 50 parts of carbon black, 1.5 parts of sulphur, 4 parts of zinc oxide, 3 parts of stearic acid, 2.5 parts of anti-aging agent, 5 parts of operation oil；
Embodiment 1, the 2 conductive stalk rubber composite materials are tested for the property, test result is as follows, wherein comparing
Sample is the test result for the stalk rubber composite material for being not added with conductive filler：
| Test event | Unit | Contrast sample result | 1 result of embodiment | 2 result of embodiment |
| Conductivity | S/cm | 5.59E-03 | 8.80E-03 | 1.27E-02 |
Pass through table, it is found that the electric conductivity by adding carbon conductive filler composite material has obtained different journeys
The raising of degree.
Although disclosed embodiment is as above, its content is only to facilitate understand the technical side of the present invention
Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not
Under the premise of being detached from disclosed core technology scheme, any modification and change can be made in form and details in implementation
Change, but protection domain defined by the present invention, the range that the appended claims that must still be subject to limits.
Claims (7)
1. a kind of conduction stalk rubber composite material, it is characterised in that：It is made from the following raw materials in parts by weight：Modified straw fiber
10~30 parts, 100~120 parts of rubber, 5~30 parts of conductive filler, the sodium hydroxide that the modified straw fiber is 4%~9%
Solution in 40 DEG C~80 DEG C processed agricultural crop straws, the agricultural crop straw be wheat stalk, rice straw or
Person's maize straw；Grain size is 60~120 mesh；The conductive filler is electrically conductive graphite or conductive carbon fibre, and the rubber is day
T PNR or synthetic rubber.
2. a kind of preparation method of conductive stalk rubber composite material according to claim 1, it is characterised in that：Specific steps
For：
Processing is modified to modified straw fiber, conductive filler, rubber using coupling agent respectively；Mixer is preheated, hopper
Temperature presets to certain temperature, and 100~120 parts of rubber is put into mixer, plasticates to rubber in flowing shape；Respectively will again
10~30 parts it is coupling agent modified after stalk fibre and conductive filler be put into mixer, make three kinds of materials in mixer mix
Refining is displayed with open mill mill 3~5 times and at room temperature until material is after mixing；Finally, by the object after ageing
After material paving to mold, it is put into vulcanizing press and carries out sulfidization molding.
3. a kind of preparation method of conductive stalk rubber composite material according to claim 2, it is characterised in that：The idol
It is double-[γ-(triethoxysilicane) propyl] tetrasulfide to join agent, and additive amount is the 2%~5% of quality of material.
4. a kind of preparation method of conductive stalk rubber composite material according to claim 3, it is characterised in that：The material
Bucket temperature presets to 70 DEG C~80 DEG C.
5. a kind of preparation method of conductive stalk rubber composite material according to claim 4, it is characterised in that：By rubber
It is put into mixer, it is in flow the time of shape for 3~5min to plasticate to rubber.
6. a kind of preparation method of conductive stalk rubber composite material according to claim 5, it is characterised in that：Modified straw
Stalk fiber, rubber, the conductive filler mixing time in mixer are 5~8min.
7. a kind of preparation method of conductive stalk rubber composite material according to claim 6, it is characterised in that：The sulphur
It is 12~13MPa to change molding pressure, and temperature is 145 DEG C~160 DEG C.
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| CN108045029B (en) * | 2017-12-22 | 2020-06-19 | 湖南工业大学 | Straw rubber laminate and preparation method thereof |
| CN114106430A (en) * | 2021-10-29 | 2022-03-01 | 南京东润带业有限公司 | Antistatic oil corrosion resistant conveying belt and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931909A (en) * | 2006-09-07 | 2007-03-21 | 暨南大学 | Composite material of modified micro plant fiber powder and natural rubber and its prepn process and application |
| CN104017258A (en) * | 2014-06-12 | 2014-09-03 | 中国地质大学（北京） | Graphite tailing composite powder filler for conductive rubber, and preparation and application thereof |
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| JP2013021260A (en) * | 2011-07-14 | 2013-01-31 | Sony Corp | Electromagnetic wave absorbing material, method of producing the same, flexible printed wiring board and electronic device |
| CN103236560B (en) * | 2013-04-16 | 2016-06-08 | 浙江大学 | A kind of sulfur/carbon composite anode material of lithium-sulfur cell and its preparation method and application |
| CN104327530B (en) * | 2014-11-26 | 2017-01-11 | 东北林业大学 | Preparation method of flame-retardant and antistatic wood-plastic composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1931909A (en) * | 2006-09-07 | 2007-03-21 | 暨南大学 | Composite material of modified micro plant fiber powder and natural rubber and its prepn process and application |
| CN104017258A (en) * | 2014-06-12 | 2014-09-03 | 中国地质大学（北京） | Graphite tailing composite powder filler for conductive rubber, and preparation and application thereof |
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