CN106147039A - A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber - Google Patents
A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber Download PDFInfo
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- CN106147039A CN106147039A CN201610569775.XA CN201610569775A CN106147039A CN 106147039 A CN106147039 A CN 106147039A CN 201610569775 A CN201610569775 A CN 201610569775A CN 106147039 A CN106147039 A CN 106147039A
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- carbon fiber
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- cold
- sealing strip
- cracking resistance
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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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)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber, be prepared by the raw materials in: ethylene propylene diene rubber 100 105, OMMT15 the 17th, high density polyethylene (HDPE) 20 22, molybdenum bisuphide 79, polytetrafluoroethylene powder 23, DOP3 the 4th, dibenzoyl peroxide 0.2 0.22, maleic anhydride 45, Cosan 2.5 3, carbon black 12 14, urethanes 0.3 0.4, anti-aging agent RD 0.8 1, dibutoxyethyl adipate 34, potter's clay 34, carbon fiber 67, DTAC 0.8 1, silicone oil 23.The product that the present invention makes resists cold ageing-resistant, is suitable in severe outdoor environment using, it is adaptable to the sealing of outdoor electrical switch cubicle.
Description
Technical field
The present invention relates to field of rubber technology, particularly relate to a kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber.
Background technology
Switch cubicle is a kind of equipment being supplied to the electric power that people produce, life is required, and its casing is by front shrouding, side
Shrouding and the sealing structure of rear shrouding composition.But, when by assembled for several switch cabinet combinations use, the side seal board splicing mutually it
Between there will be gap.This gap not only affects overall appearance, and is easy to fall into dust or water droplet, is also not enough to stop
Electromagnetic radiation, causes the unsafe factor in use.For preventing inside the access switch cabinets such as dust, foreign matter or moisture, and cause
The hydraulic performance decline of cabinet inner part or damage, the use of sealed switch cabinet is more and more extensive, therefore also more and more higher to the requirement sealing,
Especially air seal switch cubicle.Cabinet sealing strip can be by the EPDM with favorable elasticity and incompressible deformation
Rubber is made, though having superior mechanical performance and ageing-resistant performance etc., but in use due to light, heat, oxygen and corruption
The impact of the environmental factors such as erosion medium still can cause the progressively deterioration of performance, causes EPT rubber packing bar to lose efficacy, therefore,
By being modified to ethylene propylene diene monomer (EPDM) material improving its durability, make for improving EPT rubber packing material
By performance, extend its service life significant.
In " preparation of organo montmorillonite/EPT rubber packing material and performance study " literary composition, organic illiteracy is used to take off
Ethylene propylene diene rubber is modified by soil, defines exfoliated or intercal type nano composite construction, can improve EPDM
The air-liquid barrier property of rubber, heatproof air aging performance and the resistance to ageing properties that repeatedly soaks.It is subsequently used for shrouding before switch cubicle
Sealing joint strip but due to needs often switch, because of friction, sealing joint strip quick abrasion, is easily caused poor sealing.In above-mentioned article
Although having carried out ageing-resistant modification to sealing strip ethylene propylene diene monomer (EPDM) material, but the enhancing of its wearability not emphasized,
This is accomplished by being modified original sealing strip material, to meet the demand of existing various switch cubicle.
Content of the invention
The object of the invention is contemplated to make up the defect of prior art, provides a kind of the cold-resistant anti-of modified carbon fiber that add to open
Split sealing strip.
The present invention is achieved by the following technical solutions:
A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber, is prepared by the raw materials in: ethylene propylene diene rubber
100-105, OMMT15-17, high density polyethylene (HDPE) 20-22, molybdenum bisuphide 7-9, polytetrafluoroethylene powder 2-3, DOP3-4, peroxidating
Dibenzoyl 0.2-0.22, maleic anhydride 4-5, Cosan 2.5-3, carbon black 12-14, urethanes 0.3-0.4, age resistor
RD0.8-1, dibutoxyethyl adipate 3-4, potter's clay 3-4, carbon fiber 6-7, DTAC 0.8-1, silicon
Oil 2-3.
Described a kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber, is made up of step in detail below:
(1) high density polyethylene (HDPE) and DOP, molybdenum bisuphide, polytetrafluoroethylene powder are put in high speed mixer, with 1000-1200
Rev/min speed mixing 6-8 minute, be then fed in double screw extruder, add dibenzoyl peroxide, maleic anhydride, add
Hot to 90-100 DEG C, extruding pelletization, obtain wear-resisting lubricating modification master batch；
(2) with potter's clay mixed grinding after carbon fiber being pulverized, cross 200 mesh sieves and obtain mixed-powder, be subsequently adding silicone oil, put into ball
In grinding machine, be heated to 60-70 DEG C of stirring 30-40 minute, be cooled to after room temperature to add DTAC and oneself
Diacid dibutoxy ethyl ester, puts into the speed mixing 10-15 minute discharging with 600-800 rev/min in batch mixer, obtains mixture
Material；
(3) ethylene propylene diene rubber is kneaded 8-10 minute with OMMT in banbury, keep melting temperature to be 130-140 DEG C, so
After be sequentially added into mixed material, Cosan, carbon black and remaining residual components that step (2) obtains, continue insulation mixing 10-12
Minute, discharging, it is then pressed into thin slice through two-roll mill, obtain masterbatch；
(4) the lubricating modification master batch that step (1) obtains is put in twin-screw extruder, be heated to after abundant fusion plastification with step
(3) the masterbatch mixing obtaining, is then fed in single screw extrusion machine, controls screw speed 30-40 rev/min, extruder temperature 90-
100 DEG C, blend glue stuff is made to extrude continuously, through the shaping of 1000-1500MHz microwave continuous vulcanization, at electric heating drum after parking 24 hours
With the temperature sulfuration 100-120 minute of 150-160 DEG C in wind baking oven, obtain the present invention.
The invention have the advantage that the present invention under the initiation of dibenzoyl peroxide, for molybdenum bisuphide, polytetrafluoroethylene (PTFE)
The high density polyethylene (HDPE) that powder is blended carries out modified by maleic acid anhydride graft process and obtains wear-resisting lubricating modification master batch, has not only possessed good
Good wear-resisting, self-lubricating property, well can be combined with rubber matrix simultaneously；The present invention utilizes by way of melt blending
Ethylene propylene diene rubber is modified by OMMT, defines the nano composite structure of intercal type, can significantly improve ethylene-propylene-diene monomer
The air-liquid barrier property of glue, heatproof air aging performance and the resistance to ageing properties that repeatedly soaks；Finally by by wear-resisting lubricating modification mother
Grain fusion plastification mixes with modified ethylene propylene diene rubber masterbatch, produced through continuous extrusion and through post-cure
Product, post-cure can make rubber cross more perfect, removes the little molecule of residual, reduces material compression set；This
The excellent physical properties of bright product, ageing-resistant, wear-resisting, closed performance is excellent.
Present component proportioning is scientific and reasonable, also with the addition of carbon fiber, potter's clay, adipic acid in ethylene propylene diene rubber matrix
The compound that dibutoxy ethyl ester etc. is made by certain technique, improves cold resistance, the toughness of rubber matrix, prevents cracking；
The product that the present invention makes resists cold ageing-resistant, is suitable in severe outdoor environment using, it is adaptable to outdoor electrical switch cubicle
Seal.
Detailed description of the invention
A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber, is made up of the raw material of following weight portion (kilogram): three
Unit EP rubbers the 100th, OMMT15, high density polyethylene (HDPE) the 20th, molybdenum bisuphide the 7th, polytetrafluoroethylene powder the 2nd, DOP3, diphenyl peroxide first
Acyl the 0.2nd, maleic anhydride the 4th, Cosan the 2.5th, carbon black the 12nd, urethanes the 0.3rd, anti-aging agent RD the 0.8th, adipic acid dibutoxy second
Ester the 3rd, potter's clay the 3rd, carbon fiber the 6th, DTAC the 0.8th, silicone oil 2.
Described a kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber, is made up of step in detail below:
(1) put into high density polyethylene (HDPE) and DOP, molybdenum bisuphide, polytetrafluoroethylene powder in high speed mixer, with 1000 revs/min
Speed mix 6 minutes, be then fed in double screw extruder, add dibenzoyl peroxide, maleic anhydride, be heated to 90
DEG C, extruding pelletization, obtain wear-resisting lubricating modification master batch；
(2) with potter's clay mixed grinding after carbon fiber being pulverized, cross 200 mesh sieves and obtain mixed-powder, be subsequently adding silicone oil, put into ball
It in grinding machine, is heated to 60 DEG C and stirs 30 minutes, after being cooled to room temperature, add DTAC and adipic acid two
Butoxyethyl, puts into the speed mixing discharging in 10 minutes with 600 revs/min in batch mixer, obtains mixed material；
(3) ethylene propylene diene rubber is kneaded 8 minutes with OMMT in banbury, keep melting temperature to be 130 DEG C, then add successively
Enter mixed material, Cosan, carbon black and remaining residual components that step (2) obtains, continue insulation and knead 10 minutes, discharging,
Then it is pressed into thin slice through two-roll mill, obtain masterbatch；
(4) the lubricating modification master batch that step (1) obtains is put in twin-screw extruder, be heated to after abundant fusion plastification with step
(3) the masterbatch mixing obtaining, is then fed in single screw extrusion machine, control screw speed 30 revs/min, extruder temperature 90 DEG C,
Make blend glue stuff extrude continuously, through 1000MHz microwave continuous vulcanization shaping, after parking 24 hours in electric heating convection oven with
The temperature of 150 DEG C vulcanizes 100 minutes, obtains the present invention.
Product of the present invention entered performance test, and the air transmission coefficient of more common EPT rubber packing bar reduces 27.1%,
O.3MPa the water absorption rate after keeping 24h under hydraulic pressure reduces 14.7%, through 50000 circulation wet friction tests, is hardly visible mill
Damage sign.
Claims (2)
1. the cold-resistant cracking resistance sealing strip adding modified carbon fiber, it is characterised in that be prepared by the raw materials in:
Ethylene propylene diene rubber 100-105, OMMT15-17, high density polyethylene (HDPE) 20-22, molybdenum bisuphide 7-9, polytetrafluoroethylene powder 2-3,
DOP3-4, dibenzoyl peroxide 0.2-0.22, maleic anhydride 4-5, Cosan 2.5-3, carbon black 12-14, urethanes
0.3-0.4, anti-aging agent RD 0.8-1, dibutoxyethyl adipate 3-4, potter's clay 3-4, carbon fiber 6-7, trimethyl
Ammonium chloride 0.8-1, silicone oil 2-3.
2. a kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber according to claim 1, it is characterised in that by following
Concrete steps are made:
(1) high density polyethylene (HDPE) and DOP, molybdenum bisuphide, polytetrafluoroethylene powder are put in high speed mixer, with 1000-1200
Rev/min speed mixing 6-8 minute, be then fed in double screw extruder, add dibenzoyl peroxide, maleic anhydride, add
Hot to 90-100 DEG C, extruding pelletization, obtain wear-resisting lubricating modification master batch；
(2) with potter's clay mixed grinding after carbon fiber being pulverized, cross 200 mesh sieves and obtain mixed-powder, be subsequently adding silicone oil, put into ball
In grinding machine, be heated to 60-70 DEG C of stirring 30-40 minute, be cooled to after room temperature to add DTAC and oneself
Diacid dibutoxy ethyl ester, puts into the speed mixing 10-15 minute discharging with 600-800 rev/min in batch mixer, obtains mixture
Material；
(3) ethylene propylene diene rubber is kneaded 8-10 minute with OMMT in banbury, keep melting temperature to be 130-140 DEG C, so
After be sequentially added into mixed material, Cosan, carbon black and remaining residual components that step (2) obtains, continue insulation mixing 10-12
Minute, discharging, it is then pressed into thin slice through two-roll mill, obtain masterbatch；
(4) the lubricating modification master batch that step (1) obtains is put in twin-screw extruder, be heated to after abundant fusion plastification with step
(3) the masterbatch mixing obtaining, is then fed in single screw extrusion machine, controls screw speed 30-40 rev/min, extruder temperature 90-
100 DEG C, blend glue stuff is made to extrude continuously, through the shaping of 1000-1500MHz microwave continuous vulcanization, at electric heating drum after parking 24 hours
With the temperature sulfuration 100-120 minute of 150-160 DEG C in wind baking oven, obtain the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569775.XA CN106147039A (en) | 2016-07-19 | 2016-07-19 | A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569775.XA CN106147039A (en) | 2016-07-19 | 2016-07-19 | A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber |
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| Publication Number | Publication Date |
|---|---|
| CN106147039A true CN106147039A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610569775.XA Withdrawn CN106147039A (en) | 2016-07-19 | 2016-07-19 | A kind of cold-resistant cracking resistance sealing strip adding modified carbon fiber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501959A (en) * | 2017-09-27 | 2017-12-22 | 芜湖华力五星电源科技有限公司 | A kind of motorcycle lead-acid storage batteries resistance to compression safety valve |
| CN109593277A (en) * | 2018-10-31 | 2019-04-09 | 长沙市佳密封件有限公司 | A kind of preparation method of the antiacid alkali sealing ring of oil resistant |
| CN110561847A (en) * | 2019-08-02 | 2019-12-13 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086830A (en) * | 2014-06-24 | 2014-10-08 | 宁国市日格美橡塑制品有限公司 | High-strength cold-resistant oil-resistant rubber material |
| CN105086069A (en) * | 2015-08-20 | 2015-11-25 | 晶锋集团股份有限公司 | Cold and environmental cracking resistant polyethylene cable material and preparation method thereof |
-
2016
- 2016-07-19 CN CN201610569775.XA patent/CN106147039A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086830A (en) * | 2014-06-24 | 2014-10-08 | 宁国市日格美橡塑制品有限公司 | High-strength cold-resistant oil-resistant rubber material |
| CN105086069A (en) * | 2015-08-20 | 2015-11-25 | 晶锋集团股份有限公司 | Cold and environmental cracking resistant polyethylene cable material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 《橡胶工业辞典》编写组: "《橡胶工业辞典》", 30 November 1989, 化学工业出版社 * |
| 冯振刚: "有机蒙脱土/三元乙丙橡胶密封材料的制备与性能研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 谢圣英主编: "《塑料材料》", 31 January 2010, 中国轻工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501959A (en) * | 2017-09-27 | 2017-12-22 | 芜湖华力五星电源科技有限公司 | A kind of motorcycle lead-acid storage batteries resistance to compression safety valve |
| CN109593277A (en) * | 2018-10-31 | 2019-04-09 | 长沙市佳密封件有限公司 | A kind of preparation method of the antiacid alkali sealing ring of oil resistant |
| CN110561847A (en) * | 2019-08-02 | 2019-12-13 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
| CN110561847B (en) * | 2019-08-02 | 2022-04-05 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
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Application publication date: 20161123 |