CN108178892A - A kind of high intensity low pressure becomes fluorubber material and preparation method thereof - Google Patents
A kind of high intensity low pressure becomes fluorubber material and preparation method thereof Download PDFInfo
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- CN108178892A CN108178892A CN201810109882.3A CN201810109882A CN108178892A CN 108178892 A CN108178892 A CN 108178892A CN 201810109882 A CN201810109882 A CN 201810109882A CN 108178892 A CN108178892 A CN 108178892A
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 27
- 239000006229 carbon black Substances 0.000 claims abstract description 24
- 235000019241 carbon black Nutrition 0.000 claims abstract description 24
- 239000007822 coupling agent Substances 0.000 claims abstract description 22
- 239000013078 crystal Substances 0.000 claims abstract description 22
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000004203 carnauba wax Substances 0.000 claims abstract description 11
- 239000004615 ingredient Substances 0.000 claims abstract description 11
- 238000004073 vulcanization Methods 0.000 claims description 18
- 238000007670 refining Methods 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- ZFVMWEVVKGLCIJ-UHFFFAOYSA-N bisphenol AF Chemical group C1=CC(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C=C1 ZFVMWEVVKGLCIJ-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 11
- 238000007906 compression Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920006247 high-performance elastomer Polymers 0.000 abstract description 2
- 229930185605 Bisphenol Natural products 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003679 aging effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910017976 MgO 4 Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Classifications
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of high intensity low pressure to become fluorubber material and preparation method thereof, belongs to high-performance rubber field of material technology.Its technical solution is：It includes the ingredient of following mass fraction：100 parts of fluorubber, 25 parts of activity MgO, 37 parts of Ca (OH)2, 0.5 1.5 parts of palm wax, 0.4 0.7 parts of accelerating agents, 1.0 2.0 parts of vulcanizing agents, 15 25 parts of carbon blacks, 59 parts of potassium titanate crystal whiskers（PTW）, 0.5 1.2 parts of coupling agents, and disclose preparation method.The beneficial effects of the invention are as follows：Fluorubber material prepared by the present invention has high intensity, high-modulus and low compression set, and high temperature degradation resistance is excellent.
Description
Technical field
The present invention relates to high-performance rubber field of material technology more particularly to a kind of high intensity low pressure become fluorubber material and
Preparation method.
Background technology
With the development of science and technology, to fluorubber（FKM）Comprehensive performance propose higher requirement.FKM's itself
High viscosity determines that it is difficult to realize uniformly to be kneaded, therefore all employ thermal cracking legal system substantially at present with the cooperation of small particle carbon black
It obtains big grain size carbon black N990 and carrys out reinforcement, although which results in fluorubber in high temperature resistant, oil resistant, resistant to chemical media etc. tool
There are excellent properties, but intensity is not high constrains its application in more areas.Therefore, occur in recent years using 1-dimention nano material
Material --- carbon nanotube carrys out the research of reinforcement fluorubber, although this sizing material has obtained certain raising in intensity, brings simultaneously
A negative effect be exactly that compression set is excessive, for being used for the sealing material of extreme environment, compression set
It is a key factor, therefore, this sizing material can not be met the requirements.
Whisker is the staple fiber of the micro/nano level formed by high-purity crystal growth.The height-oriented structure of whisker not only makes
It has electricity, light, magnetic, dielectric, conduction, superconducts property with high intensity, high-modulus and high elongation rate.In recent years
It is also used in polymeric matrix to realize the purpose of functionalization.Since potassium titanate crystal whisker size is small, do not reunite, therefore be easier
It is dispersed in rubber matrix, and during potassium titanate crystal whisker filling fluorubber, does not increase compound viscosity, and manufactured product substantially
With good isotropic, presentation quality is good.
Synergistic effect refers to that the filler network that different fillers are formed in rubber contributes to filler dispersion or reinforcing filler net
Network is so as to make composite material have better performance.In order to give full play to the respective excellent of the Nano filling of different dimensions and property
The Nano filling of two kinds of different dimensions is added to formation multidimensional hydridization filler network in polymer, answered improving polymer by gesture
Condensation material performance has significant synergistic effect.
Invention content
The present invention has chosen carbon black and potassium titanate crystal whisker（PTW）Cooperate with reinforcement fluorubber, with realize simultaneously meet high intensity,
Low pressure becomes and the requirement of high temperature resistant many index.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of high intensity low pressure to become fluorubber material, including following
The ingredient of mass fraction：MgO, 3-7 parts of 100 parts of fluorubber, 2-5 parts of activity Ca (OH)2, 0.5-1.5 parts of palm waxs, 0.4-0.7
Part accelerating agent, 1.0-2.0 parts of vulcanizing agents, 15-25 parts of carbon blacks, 5-9 parts of potassium titanate crystal whiskers（PTW）, 0.5-1.2 parts of coupling agents.
Preferably, the fluorubber be FKM26, the accelerating agent be accelerant B PP, the vulcanizing agent be bisphenol AF, institute
Carbon black is stated as N990, the coupling agent is KH550.
It is further preferred that include the ingredient of following mass fraction：100 parts of fluorubber, 4 parts of activity MgO, 5 parts of Ca
(OH)2, 1 part of palm wax, 0.6 part of accelerant B PP, 1.7 parts of vulcanizing agent bisphenol AFs, 20 parts of carbon black N990,7 parts of potassium titanate crystal whiskers
（PTW）, 0.9 part of coupling agent KH550.
It is further preferred that include the ingredient of following mass fraction：100 parts of fluorubber, 3 parts of activity MgO, 6 parts of Ca
(OH)2, 1.2 parts of palm wax, 0.5 part of accelerant B PP, 1.5 parts of vulcanizing agent bisphenol AFs, 22 parts of carbon black N990,8 parts of potassium titanate crystal whiskers
（PTW）, 1 part of coupling agent KH550.
In order to preferably realize foregoing invention purpose, the present invention also provides a kind of high intensity low pressure to become fluorubber material
Preparation method includes the following steps：
The first step, mixing：It adjusts open mill roller temperature to 30 DEG C and to keep, first crude fluororubber is put on open mill according to formula
Then packet roller sequentially adds active MgO, Ca (OH)2, palm wax and accelerating agent, turn refining 3-5 times, add half carbon black, metatitanic acid
Potassium whisker（PTW）And coupling agent, the other half remaining carbon black, potassium titanate crystal whisker is added after turning refining 3-5 times（PTW）And coupling
Agent after turning refining 3-5 times, adds in vulcanizing agent and turns refining 3-5 times again, and last thin logical 5 bottom sheet are made rubber compound and park for 24 hours (when parking
Between should be no less than 16h).
Second step, vulcanization：It is first that rubber compound back mixing made from the first step is thin 5 times, slice thickness 1.4mm logical before vulcanization,
Vulcanization is heated on vulcanizing press, conditions of vulcanization is 170 DEG C × 10min；Post vulcanization carries out in ageing oven, and conditions of vulcanization is
200 DEG C × 10h, the film of preliminary sulfidization molding is put into baking oven, is heated up using the method gradually to heat up, concrete operations
It is as follows：Temperature is risen to 100 DEG C, the constant temperature 1h after temperature stabilization；Continue to be warming up to 200 DEG C, after constant temperature timing start,
The film vulcanizated is taken out in die sinking after 10 hours.
The beneficial effects of the invention are as follows：There is fluorubber material prepared by the present invention high intensity, high-modulus and low compression set to become
Shape, and high temperature degradation resistance is excellent.
Description of the drawings
Fig. 1 prepares material and other materials mechanical property comparison at room temperature for the present invention.
Fig. 2 is that the present invention prepares material and the compression set of other materials compares.
Specific embodiment
Preferably domestic fluorubber FKM26 inexpensively of the embodiment of the present invention（Jiangsu Meilan Chemical Co produces）,
Have chosen N990 and potassium titanate crystal whisker（PTW）Reinforcement fluorubber is cooperateed with, height is met using the formula of lower cost simultaneously to realize
Intensity, low pressure become and the requirement of high temperature resistant many index.In order to clarify the technical characteristics of the invention, below by specific reality
Mode is applied, this programme is illustrated.
Embodiment 1
An embodiment of the present invention provides a kind of high intensity low pressure to become fluorubber material, includes the ingredient of following mass fraction：100 parts
FKM26,2 parts of activity MgO, 3 parts of Ca (OH)2, 0.5 part of palm wax, 0.4 part of accelerant B PP, 1.0 parts of vulcanizing agent bisphenol AFs, 15 parts
Carbon black N990,5 parts of potassium titanate crystal whiskers（PTW）, 0.5 part of coupling agent KH550.
Embodiment 2
An embodiment of the present invention provides a kind of high intensity low pressure to become fluorubber material, includes the ingredient of following mass fraction：100 parts
FKM26,5 parts of activity MgO, 7 parts of Ca (OH)2, 1.5 parts of palm waxs, 0.7 part of accelerant B PP, 2.0 parts of vulcanizing agent bisphenol AFs, 25 parts
Carbon black N990,9 parts of potassium titanate crystal whiskers（PTW）, 1.2 parts of coupling agent KH550.
Embodiment 3
An embodiment of the present invention provides a kind of high intensity low pressure to become fluorubber material, includes the ingredient of following mass fraction：100 parts
FKM26,4 parts of activity MgO, 5 parts of Ca (OH)2, 1 part of palm wax, 0.6 part of accelerant B PP, 1.7 parts of vulcanizing agent bisphenol AFs, 20 parts of charcoals
Black N990,7 parts of potassium titanate crystal whiskers（PTW）, 0.9 part of coupling agent KH550.
Embodiment 4
An embodiment of the present invention provides a kind of high intensity low pressure to become fluorubber material, includes the ingredient of following mass fraction：100 parts
FKM26,3 parts of activity MgO, 6 parts of Ca (OH)2, 1.2 parts of palm waxs, 0.5 part of accelerant B PP, 1.5 parts of vulcanizing agent bisphenol AFs, 22 parts
Carbon black N990,8 parts of potassium titanate crystal whiskers（PTW）, 1 part of coupling agent KH550.
Embodiment 5
An embodiment of the present invention provides the preparation methods that a kind of high intensity low pressure becomes fluorubber material, include the following steps：
The first step, mixing：It adjusts open mill roller temperature to 30 DEG C and to keep, first crude fluororubber is put on open mill according to formula
Then packet roller sequentially adds active MgO, Ca (OH)2, palm wax and accelerating agent, turn refining 3-5 times, add half carbon black, metatitanic acid
Potassium whisker（PTW）And coupling agent, the other half remaining carbon black, potassium titanate crystal whisker is added after turning refining 3-5 times（PTW）And coupling
Agent after turning refining 3-5 times, adds in vulcanizing agent and turns refining 3-5 times again, and last thin logical 5 bottom sheet are made rubber compound and park for 24 hours (when parking
Between should be no less than 16h).
Second step, vulcanization：It is first that rubber compound back mixing made from the first step is thin 5 times, slice thickness 1.4mm logical before vulcanization,
Vulcanization is heated on vulcanizing press, conditions of vulcanization is 170 DEG C × 10min；Post vulcanization carries out in ageing oven, and conditions of vulcanization is
200 DEG C × 10h, the film of preliminary sulfidization molding is put into baking oven, is heated up using the method gradually to heat up, concrete operations
It is as follows：Temperature is risen to 100 DEG C, the constant temperature 1h after temperature stabilization；Continue to be warming up to 200 DEG C, after constant temperature timing start,
The film vulcanizated is taken out in die sinking after 10 hours.
Experimental example 1
Coordinated with fluorubber FKM26 with active MgO, Ca (OH)2, palm wax, accelerant B PP and vulcanizing agent bisphenol AF be as base
Plinth formula, the carbon black-filled N990 of difference, potassium titanate crystal whisker（PTW）And the two and formula compared, and filling
There are carbon black N990 and potassium titanate crystal whisker（PTW）And formula in introduce coupling agent KH550 and further compare, specific comparison is matched
Fang Rubiao 1.Material made from the preparation method provided according to embodiment 5 is tested for the property, as a result such as Fig. 1-2 and table 2-3 institutes
Show.
Mechanical property comparison at a temperature of 200 DEG C according to table 2, N990 and PTW and material tensile strength
It is significantly higher than the material of N990 or PTW is used alone with tearing strength, N990 and PTW and use and add in coupling agent KH550's
The tensile strength of material improves more notable；According to table 3, N990 and PTW and material heat-resistant air aging property
It is substantially better than the material that N990 is used alone；The comparison of mechanical property at room temperature as shown in Figure 1, N990 and PTW and material
The tensile strength of material and 100% to stretch modulus surely significantly higher than the material of N990 or PTW is used alone, adds in the material of coupling agent KH550
The promotion effect of material is more notable；Compression set comparison as shown in Figure 2, N990 and PTW and material compression forever
Deformation is significantly less than the material that N990 is used alone long.
1 comparative formula of table
| Comparative formula | 1 | 2 | 3 | 4 | 5 |
| FKM26 | 100 | 100 | 100 | 100 | 100 |
| Active MgO | 4 | 4 | 4 | 4 | 4 |
| Ca(OH)2 | 5 | 5 | 5 | 5 | 5 |
| Palm wax | 1 | 1 | 1 | 1 | 1 |
| Carbon black N990 | 0 | 20 | 0 | 15 | 15 |
| Potassium titanate crystal whisker（PTW） | 0 | 0 | 20 | 5 | 5 |
| KH550 | 0 | 0 | 0 | 0 | 0.9 |
| Accelerant B PP | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Bisphenol AF | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
Mechanics performance comparison at 2 200 DEG C of table
| Comparative formula | 1 | 2 | 3 | 4 | 5 |
| Tensile strength/MPa | 0.8 | 2.6 | 2.4 | 3.5 | 5.3 |
| Elongation at break/% | 27 | 37 | 38 | 39 | 35 |
| Tearing strength/KNm-1 | 2 | 6 | 6 | 8 | 8 |
3 heat-resistant air aging property of table compares
| Comparative formula | 1 | 2 | 3 | 4 | 5 |
| Tensile strength/MPa | 7.8 | 15.7 | 14.2 | 15.3 | 18.9 |
| Tensile strength change rate/% | -10 | 42 | 7 | 20 | 12 |
| Elongation at break/% | 308 | 283 | 222 | 187 | 142 |
| Elongation at break change rate/% | -27 | -10 | -24 | -30 | -13 |
| Shao A hardness/degree | 57 | 70 | 65 | 76 | 76 |
| Firmness change rate/% | -5 | 2.9 | 1.6 | 2.7 | 2.7 |
Experimental example 2
It is carried out at room temperature according to material made from the preparation method that the optimization formula that embodiment 1-4 is provided is provided according to embodiment 5
Mechanical property, at 200 DEG C mechanical property, compression set and hot air aging test, test result such as table 4-6 institutes
Show.According to table 4-6, made from the preparation method that optimization formula that 1-4 of the embodiment of the present invention is provided is provided according to embodiment 5
Fluorubber material significantly has high intensity, high-modulus and low compression set, and high temperature degradation resistance is excellent.
Mechanical property and the compression set at room temperature of table 4
| It is tested under room temperature environment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength/Mpa | 16.8 | 19.3 | 17.5 | 18.8 |
| Elongation at break/% | 183 | 156 | 162 | 174 |
| 100% stretches modulus/Mpa surely | 8.0 | 9.8 | 8.5 | 9.3 |
| Compression set | 18.9 | 17.6 | 18.2 | 17.7 |
Mechanics Performance Testing at 5 200 DEG C of table
| It is tested under 200 DEG C of environment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength/MPa | 5.2 | 6.1 | 5.6 | 5.7 |
| Elongation at break/% | 36 | 34 | 35 | 36 |
| Tearing strength/KNm-1 | 9 | 8 | 9 | 8 |
The test of 6 hot air aging of table
| Performance after hot air aging | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Tensile strength/Mpa | 19.1 | 21.4 | 19.6 | 20.9 |
| Tensile strength change rate/% | 14 | 11 | 12 | 11 |
| Elongation at break/% | 157 | 139 | 143 | 155 |
| Elongation at break change rate/% | -14 | -11 | -12 | -11 |
Technical characteristic of the present invention without description can realize that details are not described herein, certainly, above-mentioned by or using the prior art
Illustrate to be not limitation of the present invention, the present invention is also not limited to the example above, those skilled in the art
The variations, modifications, additions or substitutions made in the essential scope of the present invention, should also belong to the scope of protection of the present invention.
Claims (5)
1. a kind of high intensity low pressure becomes fluorubber material, which is characterized in that includes the ingredient of following mass fraction：100 parts of fluorine rubbers
MgO, 3-7 parts of Ca (OH) of glue, 2-5 parts of activity2, 0.5-1.5 parts of palm waxs, 0.4-0.7 parts of accelerating agents, 1.0-2.0 parts of vulcanizing agents,
15-25 parts of carbon blacks, 5-9 parts of potassium titanate crystal whiskers（PTW）, 0.5-1.2 parts of coupling agents.
2. high intensity low pressure according to claim 1 becomes fluorubber material, which is characterized in that the fluorubber is FKM26,
The accelerating agent is accelerant B PP, and the vulcanizing agent is bisphenol AF, and the carbon black is N990, and the coupling agent is KH550.
3. fluorubber material is become according to claim 1-2 any one of them high intensity low pressure, which is characterized in that including following matter
Measure the ingredient of score：100 parts of fluorubber, 4 parts of activity MgO, 5 parts of Ca (OH)2, 1 part of palm wax, 0.6 part of accelerating agent, 1.7 parts of sulphur
Agent, 20 parts of carbon blacks, 7 parts of potassium titanate crystal whiskers（PTW）, 0.9 part of coupling agent.
4. fluorubber material is become according to claim 1-2 any one of them high intensity low pressure, which is characterized in that including following matter
Measure the ingredient of score：100 parts of fluorubber, 3 parts of activity MgO, 6 parts of Ca (OH)2, 1.2 parts of palm waxs, 0.5 part of accelerating agent, 1.5 parts
Vulcanizing agent, 22 parts of carbon blacks, 8 parts of potassium titanate crystal whiskers（PTW）, 1 part of coupling agent.
5. a kind of preparation method for becoming fluorubber material such as claim 1-4 any one of them high intensity low pressure, feature exist
In including the following steps：
The first step, mixing：It adjusts open mill roller temperature to 30 DEG C and to keep, first crude fluororubber is put on open mill according to formula
Then packet roller sequentially adds active MgO, Ca (OH)2, palm wax and accelerating agent, turn refining 3-5 times, add half carbon black, metatitanic acid
Potassium whisker（PTW）And coupling agent, the other half remaining carbon black, potassium titanate crystal whisker is added after turning refining 3-5 times（PTW）And coupling
Agent after turning refining 3-5 times, adds in vulcanizing agent and turns refining 3-5 times again, and last thin logical 5 bottom sheet are made rubber compound and park for 24 hours (when parking
Between should be no less than 16h)；
Second step, vulcanization：It is first that rubber compound back mixing made from the first step is thin 5 times logical before vulcanization, slice thickness 1.4mm, in tablet
Vulcanization is heated on vulcanizer, conditions of vulcanization is 170 DEG C × 10min；Post vulcanization carries out in ageing oven, conditions of vulcanization 200
DEG C × 10h, the film of preliminary sulfidization molding is put into baking oven, is heated up using the method gradually to heat up, concrete operations are such as
Under：Temperature is risen to 100 DEG C, the constant temperature 1h after temperature stabilization；Continue to be warming up to 200 DEG C, after constant temperature timing start, 10
The film vulcanizated is taken out in die sinking after hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109882.3A CN108178892B (en) | 2018-02-05 | 2018-02-05 | High-strength low-pressure variable fluororubber material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109882.3A CN108178892B (en) | 2018-02-05 | 2018-02-05 | High-strength low-pressure variable fluororubber material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108178892A true CN108178892A (en) | 2018-06-19 |
| CN108178892B CN108178892B (en) | 2020-10-23 |
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Cited By (5)
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| CN112980113A (en) * | 2021-02-26 | 2021-06-18 | 东莞市贝克摩尔高性能材料有限公司 | Reversible-deformation high-elasticity rubber and preparation process thereof |
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| CN115216250A (en) * | 2022-01-06 | 2022-10-21 | 广东硕成科技股份有限公司 | High-stability coating adhesive and preparation method thereof |
| CN115594929A (en) * | 2022-09-16 | 2023-01-13 | 浙江国泰萧星密封材料股份有限公司（Cn） | High-wear-resistance combined sealing filler for dryer and filter and preparation method and application thereof |
| CN116554619A (en) * | 2023-06-26 | 2023-08-08 | 上海芯密科技有限公司 | Fluororubber elastomer and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980113A (en) * | 2021-02-26 | 2021-06-18 | 东莞市贝克摩尔高性能材料有限公司 | Reversible-deformation high-elasticity rubber and preparation process thereof |
| CN113801414A (en) * | 2021-11-03 | 2021-12-17 | 河北华密新材科技股份有限公司 | Fluororubber with high performance retention rate at high temperature |
| CN115216250A (en) * | 2022-01-06 | 2022-10-21 | 广东硕成科技股份有限公司 | High-stability coating adhesive and preparation method thereof |
| CN115594929A (en) * | 2022-09-16 | 2023-01-13 | 浙江国泰萧星密封材料股份有限公司（Cn） | High-wear-resistance combined sealing filler for dryer and filter and preparation method and application thereof |
| CN115594929B (en) * | 2022-09-16 | 2023-12-08 | 浙江国泰萧星密封材料股份有限公司 | High-wear-resistance combined sealing filler for dryer and filter as well as preparation method and application thereof |
| CN116554619A (en) * | 2023-06-26 | 2023-08-08 | 上海芯密科技有限公司 | Fluororubber elastomer and preparation method thereof |
| CN116554619B (en) * | 2023-06-26 | 2024-03-08 | 上海芯密科技有限公司 | Fluororubber elastomer and preparation method thereof |
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