CN104744828A - EPDM rubber sealing strip - Google Patents
EPDM rubber sealing strip Download PDFInfo
- Publication number
- CN104744828A CN104744828A CN201510127118.5A CN201510127118A CN104744828A CN 104744828 A CN104744828 A CN 104744828A CN 201510127118 A CN201510127118 A CN 201510127118A CN 104744828 A CN104744828 A CN 104744828A
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- CN
- China
- Prior art keywords
- parts
- rubber
- carbon black
- white carbon
- sealing strip
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Classifications
-
- 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
-
- 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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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)
- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides an EPDM rubber sealing strip, comprising the following components in parts by weight: 100-150 parts of EPDM rubber, 3-5 parts of butadiene styrene rubber, 3-5 parts of butadiene-acrylonitrile rubber, 4-8 parts of a cross-linking rubber, 2-5 parts of triallyl isocyanurate, 15-20 parts of carbon black, 10-20 parts of white carbon black, 2-6 parts of zinc oxide, 1-3 parts of zinc oxide, 1-2 parts of an antiager, 1-3 parts of magnesium oxide and 3-8 parts of paroline. The EPDM rubber sealing strip is prepared from EPDM rubber, butadiene styrene rubber and butadiene-acrylonitrile rubber through mixing, extruding and vulcanizing. Compared with the prior art, the sealing strip prepared on the basis of the formula disclosed by the invention has excellent sealing property and good heat resistance, can be used for a long time in a 150 DEG C environment; by virtue of the reinforcing effect of white carbon black, the tensile strength, tear strength and elongation at break of the sealing strip are improved to different extents because the dispersity of white carbon black in the mixed rubber is increased firstly and then reduced with increase of the use amount of white carbon black and an extreme value exists in the middle.
Description
Technical field
The present invention relates to technical field of rubber preparation, espespecially a kind of EPT rubber packing bar.
Background technology
Terpolymer EP rubber main chain is made up of the stable hydrocarbon of chemical stabilization, only in side chain, contain unsaturated double-bond, therefore substantially belong to kind of a saturation type rubber, due to substituting group nonpolarity in molecular structure, intermolecular internal cohesive energy is low, therefore molecular chain can keep kindliness in wide temperature range, the chemical structure of ethylene-propylene rubber(EPR) makes its vulcanized article have unique performance.
Ethylene-propylene rubber(EPR) application quantity in automobile manufacture industry is maximum, be mainly used in weather strip for automobile, radiator hose, spark plug boot, air conditioning hose, rubber cushion, sebific duct etc., in weather strip for automobile industry, mainly utilize the elasticity of EPDM, resistance to ozone, the characteristics such as weathering resistance, the EPDM rubber of its ENB type has become the material of main part of weather strip for automobile, domestic rubber Year's consumption is more than 10,000 tons, but due to kind relation, its half also relies on import, because thermoplasticity terpolymer EP rubber EPDM/PP intensity is high, flexible, application glossiness is high, feature easy to be recycled, at home and abroad bumper and fascia in producing as leading material.Expect 2010 and be only bumper and dashboard two products, the domestic annual consumption of EPDM/PP can reach 4.5 ten thousand tons.The processing method that the recycling of this series products mainly adopts is: produce product innovation after first removing the coating-pulverizing-cleaning-granulation again-interpolation virgin material of product surface, like this in collision bumper and dashboard are produced, obtain good economic benefit with regard to a large amount of starting material can be saved.At present, China's ethylene-propylene rubber(EPR) consumption in the automotive industry accounts for the 42%-44% of the total consumption of national ethylene-propylene rubber(EPR), wherein also do not comprise the ethylene-propylene rubber(EPR) consumption of boats and ships, train and freight container sealed strip, because the adhesiveproperties of ethylene-propylene rubber(EPR) is bad, in doughnut industry, cannot ethylene-propylene rubber(EPR) be promoted the use of in the tire body of a large amount of materials and tyre surface position, only use ethylene-propylene rubber(EPR) on a small quantity at the inner tube of a tyre, the white position such as sidewall, tire bar.
Because terpolymer EP rubber has excellent physical and chemical performance, the use range of terpolymer EP rubber is also being expanded, use widely again in automotive sealant, but due to terpolymer EP rubber soft, the reinforcement of terpolymer EP rubber is seemed particularly important.
Summary of the invention
For solving the flexibility of terpolymer EP rubber, strengthening the thermotolerance of terpolymer EP rubber, the invention provides a kind of EPT rubber packing bar.
A kind of EPT rubber packing bar, its component is designated as by weight: terpolymer EP rubber 100-150 part, styrene-butadiene rubber(SBR) 3-5 part, paracril 3-5 part, linking agent 4-8 part, triallyl isocyanuric acid fat 2-5 part, carbon black 15-20 part, white carbon black 10-20 part, zinc oxide 2-6 part, stearic acid 1-3 part, anti-aging agent 1-2 part, magnesium oxide 1-3 part, paraffin oil 3-8 part.
As a further improvement on the present invention, it is characterized in that: terpolymer EP rubber 100 parts, 5 parts, styrene-butadiene rubber(SBR), paracril 3 parts, linking agent 4 parts, 2 parts, triallyl isocyanuric acid fat, carbon black 15 parts, white carbon black 15 parts, 4 parts, zinc oxide, stearic acid 1 part, 1 part, anti-aging agent, 1 part, magnesium oxide, paraffin oil 5 parts.
As a further improvement on the present invention, it is characterized in that: described linking agent is dicumyl peroxide.
As a further improvement on the present invention, it is characterized in that: described carbon black is carbon black N330.
As a further improvement on the present invention, it is characterized in that: described anti-aging agent is 4020.
The invention has the beneficial effects as follows: pass through terpolymer EP rubber, styrene-butadiene rubber(SBR), paracril mixing, extrude, sulfuration obtains the sealed strip of terpolymer EP rubber later, compared with prior art, obtain sealed strip by above-mentioned formula and there is good stopping property, resistance toheat is life-time service under 150 DEG C of environment for a long time, simultaneously by the reinforcing effect of white carbon black, the tensile strength of sealed strip, tear strength, pull apart growth rate and all have raising in various degree, this is because along with the increase of white carbon black consumption, the dispersiveness of white carbon black in rubber unvulcanizate first raises and then declines, there is an extreme value centre, the consumption of carbon black is relatively less, more be conducive to improving the dispersity of carbon black in rubber unvulcanizate, white carbon black is applied more and more extensive as strengthening agent in rubber industry, compare with the carbon black filled sizing material with same rigidity and wear resistance, cracking resistance mouth growth property and tear strength that white carbon black can improve sizing material is added with in sizing material, use coupling agent can strengthen the combination between polymkeric substance and white carbon black further, improve the tear strength of sizing material.Reduce the compression heat generation of sizing material.
Embodiment
embodiment 1
A kind of EPT rubber packing bar, its component is designated as by weight: terpolymer EP rubber 100 parts, 3 parts, styrene-butadiene rubber(SBR), paracril 3 parts, dicumyl peroxide 4 parts, 2 parts, triallyl isocyanuric acid fat, carbon black N330 is 15 parts, white carbon black 10 parts, 2 parts, zinc oxide, stearic acid 1 part, antioxidant 4020 is 1 part, 1 part, magnesium oxide, paraffin oil 3 parts, pass through terpolymer EP rubber, styrene-butadiene rubber(SBR), paracril mixing, extrude, sulfuration obtains the sealed strip of terpolymer EP rubber later, compared with prior art, obtain sealed strip by above-mentioned formula and there is good stopping property, resistance toheat is life-time service under 150 DEG C of environment for a long time, simultaneously by the reinforcing effect of white carbon black, the tensile strength of sealed strip, tear strength, pull apart growth rate and all have raising in various degree, this is because along with the increase of white carbon black consumption, the dispersiveness of white carbon black in rubber unvulcanizate first raises and then declines, there is an extreme value centre, the consumption of carbon black is relatively less, more be conducive to improving the dispersity of carbon black in rubber unvulcanizate, white carbon black is applied more and more extensive as strengthening agent in rubber industry, compare with the carbon black filled sizing material with same rigidity and wear resistance, cracking resistance mouth growth property and tear strength that white carbon black can improve sizing material is added with in sizing material, use coupling agent can strengthen the combination between polymkeric substance and white carbon black further, improve the tear strength of sizing material.Reduce the compression heat generation of sizing material.
embodiment 2
A kind of EPT rubber packing bar, its component is designated as by weight: terpolymer EP rubber 150 parts, 5 parts, styrene-butadiene rubber(SBR), paracril 5 parts, dicumyl peroxide 8 parts, 5 parts, triallyl isocyanuric acid fat, carbon black N330 is 20 parts, white carbon black 20 parts, 6 parts, zinc oxide, stearic acid 3 parts, antioxidant 4020 is 2 parts, 3 parts, magnesium oxide, paraffin oil 8 parts, pass through terpolymer EP rubber, styrene-butadiene rubber(SBR), paracril mixing, extrude, sulfuration obtains the sealed strip of terpolymer EP rubber later, compared with prior art, obtain sealed strip by above-mentioned formula and there is good stopping property, resistance toheat is life-time service under 150 DEG C of environment for a long time, simultaneously by the reinforcing effect of white carbon black, the tensile strength of sealed strip, tear strength, pull apart growth rate and all have raising in various degree, this is because along with the increase of white carbon black consumption, the dispersiveness of white carbon black in rubber unvulcanizate first raises and then declines, there is an extreme value centre, the consumption of carbon black is relatively less, more be conducive to improving the dispersity of carbon black in rubber unvulcanizate, white carbon black is applied more and more extensive as strengthening agent in rubber industry, compare with the carbon black filled sizing material with same rigidity and wear resistance, cracking resistance mouth growth property and tear strength that white carbon black can improve sizing material is added with in sizing material, use coupling agent can strengthen the combination between polymkeric substance and white carbon black further, improve the tear strength of sizing material.Reduce the compression heat generation of sizing material.
embodiment 3
A kind of EPT rubber packing bar, it is characterized in that: terpolymer EP rubber 100 parts, 5 parts, styrene-butadiene rubber(SBR), paracril 3 parts, dicumyl peroxide 4 parts, 2 parts, triallyl isocyanuric acid fat, carbon black N330 is 15 parts, white carbon black 15 parts, 4 parts, zinc oxide, stearic acid 1 part, antioxidant 4020 is 1 part, 1 part, magnesium oxide, paraffin oil 5 parts, pass through terpolymer EP rubber, styrene-butadiene rubber(SBR), paracril mixing, extrude, sulfuration obtains the sealed strip of terpolymer EP rubber later, compared with prior art, obtain sealed strip by above-mentioned formula and there is good stopping property, resistance toheat is life-time service under 150 DEG C of environment for a long time, simultaneously by the reinforcing effect of white carbon black, the tensile strength of sealed strip, tear strength, pull apart growth rate and all reach optimum value, this is because along with the increase of white carbon black consumption, the dispersiveness of white carbon black in rubber unvulcanizate first raises and then declines, there is an extreme value centre, the consumption of carbon black is relatively less, more be conducive to improving the dispersity of carbon black in rubber unvulcanizate, white carbon black is applied more and more extensive as strengthening agent in rubber industry, compare with the carbon black filled sizing material with same rigidity and wear resistance, cracking resistance mouth growth property and tear strength that white carbon black can improve sizing material is added with in sizing material, use coupling agent can strengthen the combination between polymkeric substance and white carbon black further, improve the tear strength of sizing material.Reduce the compression heat generation of sizing material.
Claims (5)
1. an EPT rubber packing bar, its component is designated as by weight: terpolymer EP rubber 100-150 part, styrene-butadiene rubber(SBR) 3-5 part, paracril 3-5 part, linking agent 4-8 part, triallyl isocyanuric acid fat 2-5 part, carbon black 15-20 part, white carbon black 10-20 part, zinc oxide 2-6 part, stearic acid 1-3 part, anti-aging agent 1-2 part, magnesium oxide 1-3 part, paraffin oil 3-8 part.
2. a kind of EPT rubber packing bar according to claim 1, is characterized in that: terpolymer EP rubber 100 parts, 5 parts, styrene-butadiene rubber(SBR), paracril 3 parts, linking agent 4 parts, 2 parts, triallyl isocyanuric acid fat, carbon black 15 parts, white carbon black 15 parts, 4 parts, zinc oxide, stearic acid 1 part, 1 part, anti-aging agent, 1 part, magnesium oxide, paraffin oil 5 parts.
3. a kind of EPT rubber packing bar according to claim 2, is characterized in that: described linking agent is dicumyl peroxide.
4. a kind of EPT rubber packing bar according to claim 3, is characterized in that: described carbon black is carbon black N330.
5. a kind of EPT rubber packing bar according to claim 4, is characterized in that: described anti-aging agent is 4020.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127118.5A CN104744828A (en) | 2015-03-23 | 2015-03-23 | EPDM rubber sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127118.5A CN104744828A (en) | 2015-03-23 | 2015-03-23 | EPDM rubber sealing strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104744828A true CN104744828A (en) | 2015-07-01 |
Family
ID=53585131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510127118.5A Pending CN104744828A (en) | 2015-03-23 | 2015-03-23 | EPDM rubber sealing strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104744828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359180A (en) * | 2018-01-24 | 2018-08-03 | 江苏德瑞博新能源汽车制造有限公司 | A kind of preparation method of vehicle rear window glass sealing sponge adhesive tape |
| CN109401085A (en) * | 2018-11-28 | 2019-03-01 | 陕西秦垒建设集团有限公司 | A kind of EPT rubber packing item and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766703A (en) * | 1994-12-27 | 1998-06-16 | Toyoda Gosei Co., Ltd. | Automobile weather strip |
-
2015
- 2015-03-23 CN CN201510127118.5A patent/CN104744828A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766703A (en) * | 1994-12-27 | 1998-06-16 | Toyoda Gosei Co., Ltd. | Automobile weather strip |
Non-Patent Citations (1)
| Title |
|---|
| 沈新元: "《高分子材料加工原理 第3版》", 31 December 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359180A (en) * | 2018-01-24 | 2018-08-03 | 江苏德瑞博新能源汽车制造有限公司 | A kind of preparation method of vehicle rear window glass sealing sponge adhesive tape |
| CN109401085A (en) * | 2018-11-28 | 2019-03-01 | 陕西秦垒建设集团有限公司 | A kind of EPT rubber packing item and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |