CN108659281A - A kind of caulking gum material and preparation method thereof based on skeleton - Google Patents
A kind of caulking gum material and preparation method thereof based on skeleton Download PDFInfo
- Publication number
- CN108659281A CN108659281A CN201810337459.9A CN201810337459A CN108659281A CN 108659281 A CN108659281 A CN 108659281A CN 201810337459 A CN201810337459 A CN 201810337459A CN 108659281 A CN108659281 A CN 108659281A
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- skeleton
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- caulking gum
- rubber
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- 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
- C08L2205/03—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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- 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 invention discloses a kind of caulking gum material based on skeleton, including major ingredient and skeleton；The component of the major ingredient includes：Nitrile rubber, acrylic rubber, epoxy resin, trimellitate, alundum (Al2O3), polyimide resin, white carbon, anti-aging agent, sulphur；The skeleton includes glass fibre and asbestos fibre；The glass fibre and asbestos fibre is twisted together into twisted fibres；The multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The skeleton of the dictyosome structure is placed in inside major ingredient.Structure of the invention intensity height, stable connection.
Description
Technical field
The present invention relates to a kind of caulking gum material and preparation method thereof based on skeleton.
Background technology
Sealing article is the important foundation element of all kinds of machineries, and almost all of industrial department all be unable to do without it.Sealing member
How is the quality of part, is directly related to the service life and operating reliability of machine.If sealing element is with low quality, gently if bring
Loss and trouble, it will cause serious accidents for weight.Especially under the high environment of operating pressure, load that sealing ring is born compared with
Greatly, through being commonly encountered sealing element damaged condition in equipment running process, some sealing elements can only be using 1~2 month, even more
The short time, it is necessary to replace, the trouble brought to the continuous production of enterprise.Therefore, at present there is an urgent need to it is a kind of can be in high pressure
The rubber packing material of longer cycle is used under environment.
Invention content
In view of the deficiencies of the prior art mentioned above, problems solved by the invention is：There is provided that a kind of structural strength is high, connection
Firm caulking gum material and preparation method thereof.
To solve the above problems, the technical solution adopted by the present invention is as follows：
A kind of caulking gum material based on skeleton, including major ingredient and skeleton；The component of the major ingredient and the matter of each component
Measuring number includes：65~70 parts of nitrile rubber, 25~35 parts of acrylic rubber, 4~10 parts of epoxy resin, trimellitate
9~12 parts, 5~10 parts of alundum (Al2O3), 2~5 parts of polyimide resin, 7~9 parts of white carbon, 1~3 part of anti-aging agent, sulphur 3
~4 parts；The skeleton includes glass fibre and asbestos fibre；The glass fibre and asbestos fibre is twisted together into twisted fibre
Dimension；The multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The skeleton of the dictyosome structure is placed in inside major ingredient；Institute
The mass ratio of the skeleton and major ingredient stated is 1：50~1：60.
Further, the mass fraction of each component is in the major ingredient：68 parts of nitrile rubber, acrylic rubber 30
Part, 8 parts of epoxy resin, 10 parts of trimellitate, 5 parts of alundum (Al2O3), 3 parts of polyimide resin, 8 parts of white carbon, anti-aging agent 2
Part, 3 parts of sulphur；The mass ratio of the skeleton and major ingredient is 1：55.
Further, the skeleton is twisted together into twisted fibre by the glass fibre of 400~500 beams and the asbestos fibre of 3~5 beams
Dimension.
A kind of preparation method of the caulking gum material based on skeleton, steps are as follows：
S1, the nitrile rubber by major ingredient, acrylic rubber, epoxy resin, trimellitate are weighed according to parts by weight, then
It is added in mixer and carries out mixing, obtain the good sizing material of mixing；
S2, the good sizing material of mixing is put into open mill, then weighs alundum (Al2O3), polyimides tree according to parts by weight
Fat, white carbon, anti-aging agent, sulphur are put into open mill and are kneaded, compression moulding, form preforming rubber；
S3, every 3~5 beam asbestos fibre be one group, the glass fibre of every 400~500 beam is one group, and the asbestos of 3~5 beams are fine
Dimension is wrapped on the outside of the glass fibre of 400~500 beams, twisted to form twisted fibres, and multiply twisted fibres are then woven networking
Shape structure forms skeleton；
S4, taking the preforming rubber of two panels and skeleton to be placed on compounding machine, progress hot pressing is compound, and it is pre- to form preforming rubber-skeleton-
The sandwich caulking gum material structure of molded rubber；
S5, the sandwich caulking gum material structure of the preforming preforming rubber of rubber-skeleton-is put into vulcanizing equipment
In mold, vulcanizing treatment is carried out, caulking gum material is obtained after deburring.
Further, each component is put into mixer 8~10min of mixing at 90~98 DEG C in the step S1.
Further, each component is kneaded 6~8min in open mill at 100~110 DEG C in the step S2.
Further, the asbestos fibre in the step S3 and glass fibre are in filament structure；First by the asbestos of 3~5 beams
Fiber carries out twisted be wrapped in later on the outside of the glass fibre of 400~500 beams；A diameter of the 10~20 of the glass fibre are micro-
Rice；A diameter of 2 to 3 millimeters of the asbestos fibre.
Further, the temperature of compounding machine is 80~100 DEG C in the step S4, and pressure is 8~12kg/cm2 。
Further, the curing temperature in the step S5 is 160~170 DEG C, and vulcanization time is 25~35min, vulcanization pressure
Power is 15~25Mpa.
Beneficial effects of the present invention
The present invention changes the structure of traditional rubber seal, and the present invention is additionally arranged skeleton in the inside of rubber seal, and
And skeleton is by the dictyosome structure after glass fibre and the twisted braiding of asbestos fibre, Fiberglass machine intensity is high, heat resistance is strong,
Corrosion resistance is good, but individually the adhesive of glass fibre and sizing material is too poor, and then the present invention has selected asbestos fibre work again
For intermediate connection transition vector, asbestos fibre belongs to flexible fiber, and excellent adsorption, tensile strength high intensity is high, good heat-resisting
Property, and asbestos fibre belongs to the burden that lightweight fiber type will not bring weightening, the asbestos fibre of 3~5 beams is wrapped in 400~
On the outside of the glass fibre of 500 beams so that sizing material and asbestos fibre absorption bonding one, while glass fibre being packaged, it is whole
Not only intensity is improved a structure, and connect more firm stable, the structure of rubber seal of the invention and
Preparation method belongs to the pioneering of rubber seal field, and application prospect is extensive.
Specific implementation mode
The content of present invention is described in further detail below.
Embodiment 1
A kind of caulking gum material based on skeleton, including major ingredient and skeleton.The component of the major ingredient and the matter of each component
Measuring number includes：65 parts of nitrile rubber, 25 parts of acrylic rubber, 4 parts of epoxy resin, 9 parts of trimellitate, three oxidations two
5 parts of aluminium, 2 parts of polyimide resin, 7 parts of white carbon, 1 part of anti-aging agent, 3 parts of sulphur；The skeleton includes glass fibre and stone
Cotton fiber；The glass fibre and asbestos fibre is twisted together into twisted fibres；The skeleton is by the glass fibre of 400 beams and 3
The asbestos fibre of beam is twisted together into twisted fibres, and the multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The dictyosome
The skeleton of structure is placed in inside major ingredient；The mass ratio of the skeleton and major ingredient is 1：50.
A kind of preparation method of the caulking gum material based on skeleton, steps are as follows：
S1, the nitrile rubber by major ingredient, acrylic rubber, epoxy resin, trimellitate are weighed according to parts by weight, then
It is added in mixer and carries out mixing, obtain the good sizing material of mixing；Each component is put into mixer the mixing 8min at 90 DEG C.
S2, the good sizing material of mixing is put into open mill, then weighs alundum (Al2O3), polyimides according to parts by weight
Resin, white carbon, anti-aging agent, sulphur are put into open mill and are kneaded, compression moulding, form preforming rubber；Each component
In open mill 6min is kneaded at 100 DEG C.
S3, every 3 beam asbestos fibre be one group, the glass fibre of every 400 beam is one group, and the asbestos fibre of 3 beams is wound
It is twisted to form twisted fibres on the outside of the glass fibre of 400 beams, multiply twisted fibres are then woven into reticular structure, are formed
Skeleton；Asbestos fibre and glass fibre are in filament structure；First the asbestos fibre of 3 beams is carried out to be wrapped in 400 beams after being twisted together
Glass fibre on the outside of；A diameter of 10 microns of the glass fibre；A diameter of 2 millimeters of the asbestos fibre.
S4, taking the preforming rubber of two panels and skeleton to be placed on compounding machine, progress hot pressing is compound, forms preforming rubber-bone
The sandwich caulking gum material structure of the preforming rubber of frame-；The temperature for controlling compounding machine is 80 DEG C, pressure 8kg/cm2 。
S5, the sandwich caulking gum material structure of the preforming preforming rubber of rubber-skeleton-is put into vulcanizing equipment
In mold in, carry out vulcanizing treatment, obtain caulking gum material after deburring, curing temperature is 160 DEG C, and vulcanization time is
25min, sulfide stress 15Mpa.
Embodiment 2
A kind of caulking gum material based on skeleton, including major ingredient and skeleton.The component of the major ingredient and the matter of each component
Measuring number includes：68 parts of nitrile rubber, 30 parts of acrylic rubber, 8 parts of epoxy resin, 10 parts of trimellitate, three oxidations
Two 5 parts of aluminium, 3 parts of polyimide resin, 8 parts of white carbon, 2 parts of anti-aging agent, 3 parts of sulphur.The skeleton include glass fibre and
Asbestos fibre；The glass fibre and asbestos fibre is twisted together into twisted fibres；The skeleton by 450 beams glass fibre and
The asbestos fibre of 4 beams is twisted together into twisted fibres, and the multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The dictyosome
The skeleton of structure is placed in inside major ingredient；The mass ratio of the skeleton and major ingredient is 1：55.
A kind of preparation method of the caulking gum material based on skeleton, steps are as follows：
S1, the nitrile rubber by major ingredient, acrylic rubber, epoxy resin, trimellitate are weighed according to parts by weight, then
It is added in mixer and carries out mixing, obtain the good sizing material of mixing；Each component is put into mixer the mixing 9min at 95 DEG C.
S2, the good sizing material of mixing is put into open mill, then weighs alundum (Al2O3), polyimides according to parts by weight
Resin, white carbon, anti-aging agent, sulphur are put into open mill and are kneaded, compression moulding, form preforming rubber；Each component
In open mill 7min is kneaded at 105 DEG C.
S3, every 4 beam asbestos fibre be one group, the glass fibre of every 450 beam is one group, and the asbestos fibre of 4 beams is wound
It is twisted to form twisted fibres on the outside of the glass fibre of 450 beams, multiply twisted fibres are then woven into reticular structure, are formed
Skeleton；Asbestos fibre and glass fibre are in filament structure；First the asbestos fibre of 4 beams is carried out to be wrapped in 450 beams after being twisted together
Glass fibre on the outside of；A diameter of 15 microns of the glass fibre；A diameter of 2.5 millimeters of the asbestos fibre.
S4, taking the preforming rubber of two panels and skeleton to be placed on compounding machine, progress hot pressing is compound, forms preforming rubber-bone
The sandwich caulking gum material structure of the preforming rubber of frame-；The temperature for controlling compounding machine is 90 DEG C, pressure 10kg/cm2 。
S5, the sandwich caulking gum material structure of the preforming preforming rubber of rubber-skeleton-is put into vulcanizing equipment
In mold in, carry out vulcanizing treatment, obtain caulking gum material after deburring, curing temperature is 165 DEG C, and vulcanization time is
30min, sulfide stress 20Mpa.
Embodiment 3
A kind of caulking gum material based on skeleton, including major ingredient and skeleton.The component of the major ingredient and the matter of each component
Measuring number includes：70 parts of nitrile rubber, 35 parts of acrylic rubber, 10 parts of epoxy resin, 12 parts of trimellitate, three oxidations
Two aluminium 10,5 parts of polyimide resin, 9 parts of white carbon, 3 parts of anti-aging agent, 4 parts of sulphur；The skeleton includes glass fibre and stone
Cotton fiber；The glass fibre and asbestos fibre is twisted together into twisted fibres；The skeleton is by the glass fibre of 500 beams and 5
The asbestos fibre of beam is twisted together into twisted fibres, and the multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The dictyosome
The skeleton of structure is placed in inside major ingredient；The mass ratio of the skeleton and major ingredient is 1：60.
A kind of preparation method of the caulking gum material based on skeleton, steps are as follows：
S1, the nitrile rubber by major ingredient, acrylic rubber, epoxy resin, trimellitate are weighed according to parts by weight, then
It is added in mixer and carries out mixing, obtain the good sizing material of mixing；Each component is put into the mixing at 98 DEG C in mixer
10min。
S2, the good sizing material of mixing is put into open mill, then weighs alundum (Al2O3), polyimides according to parts by weight
Resin, white carbon, anti-aging agent, sulphur are put into open mill and are kneaded, compression moulding, form preforming rubber；Each component
In open mill 8min is kneaded at 110 DEG C.
S3, every 5 beam asbestos fibre be one group, the glass fibre of every 500 beam is one group, and the asbestos fibre of 5 beams is wound
It is twisted to form twisted fibres on the outside of the glass fibre of 500 beams, multiply twisted fibres are then woven into reticular structure, are formed
Skeleton；Asbestos fibre and glass fibre are in filament structure；First the asbestos fibre of 5 beams is carried out to be wrapped in 500 beams after being twisted together
Glass fibre on the outside of；A diameter of 20 microns of the glass fibre；A diameter of 3 millimeters of the asbestos fibre.
S4, taking the preforming rubber of two panels and skeleton to be placed on compounding machine, progress hot pressing is compound, forms preforming rubber-bone
The sandwich caulking gum material structure of the preforming rubber of frame-；The temperature for controlling compounding machine is 100 DEG C, pressure 12kg/cm2 。
S5, the sandwich caulking gum material structure of the preforming preforming rubber of rubber-skeleton-is put into vulcanizing equipment
In mold in, carry out vulcanizing treatment, obtain caulking gum material after deburring, curing temperature is 170 DEG C, and vulcanization time is
35min, sulfide stress 25Mpa.
The present invention changes the structure of traditional rubber seal, and the present invention is additionally arranged bone in the inside of rubber seal
Frame, and skeleton is by the dictyosome structure after glass fibre and the twisted braiding of asbestos fibre, and Fiberglass machine intensity is high, heat-resisting
Property it is strong, corrosion resistance is good, but individually the adhesive of glass fibre and sizing material is too poor, and then the present invention has selected asbestos fine again
It ties up as intermediate connection transition vector, asbestos fibre belongs to flexible fiber, and excellent adsorption, tensile strength high intensity is high, well
Heat resistance, and asbestos fibre belongs to the burden that lightweight fiber type will not bring weightening, and the asbestos fibre of 3~5 beams is wrapped in
On the outside of the glass fibre of 400~500 beams so that sizing material and asbestos fibre absorption bonding one, while glass fibre being sealed
Dress, not only intensity is improved total, and the more firm stable connected, the structure of rubber seal of the invention
And preparation method belongs to the pioneering of rubber seal field, application prospect is extensive.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of caulking gum material based on skeleton, which is characterized in that including major ingredient and skeleton；The component of the major ingredient with
And the mass fraction of each component includes：65~70 parts of nitrile rubber, 25~35 parts of acrylic rubber, epoxy resin 4~10
Part, 9~12 parts of trimellitate, 5~10 parts of alundum (Al2O3), 2~5 parts of polyimide resin, 7~9 parts of white carbon, anti-aging agent
1~3 part, 3~4 parts of sulphur；The skeleton includes glass fibre and asbestos fibre；The glass fibre and asbestos fibre are twisted
Synthesize twisted fibres；The multiply twisted fibres interweave with forming the skeleton of dictyosome structure；The skeleton of the dictyosome structure is placed in
Inside major ingredient；The mass ratio of the skeleton and major ingredient is 1：50~1：60.
2. the caulking gum material according to claim 1 based on skeleton, which is characterized in that each component in the major ingredient
Mass fraction be：68 parts of nitrile rubber, 30 parts of acrylic rubber, 8 parts of epoxy resin, 10 parts of trimellitate, three oxygen
Change 5 parts of two aluminium, 3 parts of polyimide resin, 8 parts of white carbon, 2 parts of anti-aging agent, 3 parts of sulphur；The quality of the skeleton and major ingredient
Than being 1：55.
3. the caulking gum material according to claim 1 based on skeleton, which is characterized in that the skeleton by 400~
The asbestos fibre of the glass fibre of 500 beams and 3~5 beams is twisted together into twisted fibres.
4. a kind of preparation method of caulking gum material based on skeleton according to claims 1 to 3 any one, special
Sign is that steps are as follows：
S1, the nitrile rubber by major ingredient, acrylic rubber, epoxy resin, trimellitate are weighed according to parts by weight, then
It is added in mixer and carries out mixing, obtain the good sizing material of mixing；
S2, the good sizing material of mixing is put into open mill, then weighs alundum (Al2O3), polyimides tree according to parts by weight
Fat, white carbon, anti-aging agent, sulphur are put into open mill and are kneaded, compression moulding, form preforming rubber；
S3, every 3~5 beam asbestos fibre be one group, the glass fibre of every 400~500 beam is one group, and the asbestos of 3~5 beams are fine
Dimension is wrapped on the outside of the glass fibre of 400~500 beams, twisted to form twisted fibres, and multiply twisted fibres are then woven networking
Shape structure forms skeleton；
S4, taking the preforming rubber of two panels and skeleton to be placed on compounding machine, progress hot pressing is compound, and it is pre- to form preforming rubber-skeleton-
The sandwich caulking gum material structure of molded rubber；
S5, the sandwich caulking gum material structure of the preforming preforming rubber of rubber-skeleton-is put into vulcanizing equipment
In mold, vulcanizing treatment is carried out, caulking gum material is obtained after deburring.
5. the preparation method of the caulking gum material according to claim 4 based on skeleton, which is characterized in that the step
Each component is put into mixer 8~10min of mixing at 90~98 DEG C in S1.
6. the preparation method of the caulking gum material according to claim 4 based on skeleton, which is characterized in that the step
Each component is kneaded 6~8min in open mill at 100~110 DEG C in S2.
7. the preparation method of the caulking gum material according to claim 4 based on skeleton, which is characterized in that the step
Asbestos fibre and glass fibre in S3 are in filament structure；First the asbestos fibre of 3~5 beams be wrapped in after being twisted together
On the outside of the glass fibre of 400~500 beams；A diameter of 10~20 microns of the glass fibre；The asbestos fibre it is straight
Diameter is 2 to 3 millimeters.
8. the preparation method of the caulking gum material according to claim 4 based on skeleton, which is characterized in that the step
The temperature of compounding machine is 80~100 DEG C in S4, and pressure is 8~12kg/cm2 。
9. the preparation method of the caulking gum material according to claim 4 based on skeleton, which is characterized in that the step
Curing temperature in S5 is 160~170 DEG C, and vulcanization time is 25~35min, and sulfide stress is 15~25Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810337459.9A CN108659281A (en) | 2018-04-16 | 2018-04-16 | A kind of caulking gum material and preparation method thereof based on skeleton |
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| CN201810337459.9A CN108659281A (en) | 2018-04-16 | 2018-04-16 | A kind of caulking gum material and preparation method thereof based on skeleton |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110358160A (en) * | 2019-07-09 | 2019-10-22 | 南京利德东方橡塑科技有限公司 | A kind of stretch-proof wind-powered electricity generation revolving support rubber seal |
| CN111775393A (en) * | 2020-06-10 | 2020-10-16 | 徐兴勇 | Preparation process of high-strength rubber diaphragm for automobile sealing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110358160A (en) * | 2019-07-09 | 2019-10-22 | 南京利德东方橡塑科技有限公司 | A kind of stretch-proof wind-powered electricity generation revolving support rubber seal |
| CN111775393A (en) * | 2020-06-10 | 2020-10-16 | 徐兴勇 | Preparation process of high-strength rubber diaphragm for automobile sealing |
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Application publication date: 20181016 |