CN112341718A - Preparation method of automobile dust cover with good resilience - Google Patents
Preparation method of automobile dust cover with good resilience Download PDFInfo
- Publication number
- CN112341718A CN112341718A CN202011193254.1A CN202011193254A CN112341718A CN 112341718 A CN112341718 A CN 112341718A CN 202011193254 A CN202011193254 A CN 202011193254A CN 112341718 A CN112341718 A CN 112341718A
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- Prior art keywords
- parts
- preparation
- dust cover
- following
- automobile dust
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- 239000000428 dust Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 13
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 12
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 11
- 239000006235 reinforcing carbon black Substances 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000005060 rubber Substances 0.000 claims abstract description 10
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 5
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 5
- 229920001194 natural rubber Polymers 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229960000892 attapulgite Drugs 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 229910052625 palygorskite Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- 238000001694 spray drying Methods 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000013329 compounding Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- 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
Landscapes
- 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 preparation method of an automobile dust cover with good rebound resilience, which is prepared from the following raw materials in parts by weight: 130-140 parts of ethylene propylene diene monomer rubber, 40-50 parts of semi-reinforcing carbon black, 10-12 parts of butadiene rubber BR, 40-60 parts of natural rubber, 3-5 parts of an anti-aging agent RD, 1-2 parts of paraffin oil, 1-2 parts of an accelerator CZ, 2-4 parts of sulfur and 100-120 parts of an activated filler. The rubber material is reasonable in compounding, and the ethylene propylene diene monomer, the semi-reinforcing carbon black and the butadiene rubber BR are compounded, so that excellent resilience can be obtained when the rubber material is used for an automobile steering dust cover.
Description
Technical Field
The invention relates to the field of automobile accessories, in particular to a preparation method of an automobile dust cover with good resilience.
Background
The main function of the automobile steering dust cover is to prevent dust, moisture, oil, slurry, sand, etc. from entering a steering engine system, generating corrosion to a pull rod and abrasion to a sealing ring to cause the whole steering failure; the manufacturing material of the engine compartment is required to have higher high temperature resistance, ozone resistance, oil resistance and weather resistance under the influence of high temperature of the engine compartment and working environment, so the requirement on the material is very important. The thermoplastic vulcanized rubber has good elasticity and compression deformation resistance, the environmental resistance and the aging resistance are equivalent to those of ethylene propylene rubber, and the oil resistance and the solvent resistance of the thermoplastic vulcanized rubber are comparable to those of general chloroprene rubber. The thermoplastic vulcanized rubber body can be used at the temperature of-60-135 ℃, does not need to be vulcanized when in use, can be directly processed and molded by blow molding and the like, and can shorten the processing process flow and reduce the processing cost.
The mainstream in the current market turns to that the rebound resilience of dust cover product is not good enough, can not satisfy ever-increasing market diversified demand.
Disclosure of Invention
The invention aims to provide a preparation method of an automobile dust cover with good resilience.
The above purpose is achieved by the following scheme:
a method for preparing an automobile dust cover with good rebound resilience, which is characterized in that,
the method comprises the following steps:
(1) taking ethylene propylene diene monomer, semi-reinforcing carbon black and butadiene rubber BR according to the weight parts, fully mixing, adding other raw materials according to the weight parts, and fully mixing to obtain a sizing material for later use;
(2) preparing the automobile dust cover by using the rubber material according to a conventional process;
the automobile dust cover with good rebound resilience is prepared from the following raw materials in parts by weight:
130-140 parts of ethylene propylene diene monomer rubber, 40-50 parts of semi-reinforcing carbon black, 10-12 parts of butadiene rubber BR, 40-60 parts of natural rubber, 3-5 parts of an anti-aging agent RD, 1-2 parts of paraffin oil, 1-2 parts of an accelerator CZ, 2-4 parts of sulfur and 100-120 parts of an activated filler.
The preparation method of the automobile dust cover with good rebound resilience is characterized by comprising the following steps: the activated filler is prepared from the following raw materials in parts by weight:
40-43 parts of mica powder, 10-15 parts of attapulgite, 1-2 parts of magnesium oxide, 1-4 parts of silane coupling agent kh550, 2-4 parts of stearic acid and 1-2 parts of sodium lignosulfonate.
The preparation method of the automobile dust cover with good rebound resilience is characterized by comprising the following steps:
the preparation method of the activated filler comprises the following steps:
(1) uniformly mixing mica powder and attapulgite to obtain compound powder for later use;
(2) atomizing a 14-17% hydrochloric acid solution, mixing the atomized solution with the compound powder, standing the mixture for 15-24 hours at 50-60 ℃, adding a proper amount of water, stirring the mixture evenly, grinding the slurry at 50-80 ℃ to 400-mesh, adding sodium hydroxide to adjust the slurry to be neutral, mixing the slurry with the rest raw materials evenly, standing the mixture for 20-40 minutes, and performing spray drying to obtain the finished product.
The preparation method of the automobile dust cover with good rebound resilience is characterized by comprising the following steps: each kilogram of the compound powder is mixed with 15 to 23mL of 14 to 17 percent hydrochloric acid solution.
The invention has the beneficial effects that:
the rubber material is reasonable in compounding, and the ethylene propylene diene monomer, the semi-reinforcing carbon black and the butadiene rubber BR are compounded, so that excellent resilience can be obtained when the rubber material is used for an automobile steering dust cover; according to the invention, after the surface of the auxiliary agent is subjected to corrosion treatment by hydrochloric acid, the activation capacity is increased, and the activation capacity is modified, so that the reaction activity and the specific surface area of the compound powder are greatly improved, and the obtained dust cover has very good resilience.
Detailed Description
Example 1:
a preparation method of an automobile dust cover with good rebound resilience comprises the following steps:
(1) taking ethylene propylene diene monomer, semi-reinforcing carbon black and butadiene rubber BR according to the weight parts, fully mixing, adding other raw materials according to the weight parts, and fully mixing to obtain a sizing material for later use;
(2) preparing the automobile dust cover by using the rubber material according to a conventional process;
the automobile dust cover with good rebound resilience is prepared from the following raw materials by weight (kg):
the rubber material comprises 140 parts of ethylene propylene diene monomer, 40 parts of semi-reinforcing carbon black, 12 parts of butadiene rubber BR, 40 parts of natural rubber, an anti-aging agent RD5, 1 part of paraffin oil, 2 parts of an accelerator CZ, 2 parts of sulfur and 100 parts of an activated filler.
The activated filler is prepared from the following raw materials by weight (kg):
40 parts of mica powder, 15 parts of attapulgite, 1 part of magnesium oxide, a silane coupling agent kh 5502 parts of stearic acid and 2 parts of sodium lignosulphonate.
The preparation method of the activated filler comprises the following steps:
(1) uniformly mixing mica powder and attapulgite to obtain compound powder for later use;
(2) atomizing a 15% hydrochloric acid solution, mixing with the compound powder, standing at 60 ℃ for 24 hours, adding a proper amount of water, stirring uniformly, grinding the slurry at 50 ℃ to 500 meshes, adding sodium hydroxide to adjust the slurry to be neutral, mixing with the rest raw materials, standing for 40min, and spray-drying to obtain the compound. Each kilogram of the compound powder is mixed with 15mL of hydrochloric acid solution with the concentration of 15 percent.
The model of the ethylene propylene diene monomer is 3072 EM.
Carry out performance test to this embodiment dust cover and detect, the testing result:
the tensile strength is 19 MPa; elongation at break 480%;
compression set 8.2%.
Comparative example:
manufacturing an automobile dust cover B, namely a method for manufacturing the automobile dust cover with good rebound resilience, which comprises the following steps:
(1) taking ethylene propylene diene monomer, semi-reinforcing carbon black and butadiene rubber BR according to the weight parts, fully mixing, adding other raw materials according to the weight parts, and fully mixing to obtain a sizing material for later use;
(2) preparing the automobile dust cover by using the rubber material according to a conventional process;
the automobile dust cover with good rebound resilience is prepared from the following raw materials by weight (kg):
the rubber material comprises 140 parts of ethylene propylene diene monomer, 40 parts of semi-reinforcing carbon black, 12 parts of butadiene rubber BR, 40 parts of natural rubber, 5 parts of an anti-aging agent RD, 1 part of paraffin oil, 2 parts of an accelerator CZ, 2 parts of sulfur and 100 parts of an activated filler.
The activating filler is prepared by mixing 40kg of mica powder and 15kg of attapulgite.
And (3) carrying out performance test detection on the automobile dust cover B, wherein the detection result is as follows:
the tensile strength is 13 MPa;
elongation at break 357%;
compression set 5.6%.
The experimental results show that the performance of the product is improved due to the good compatibility of the filler, and the rebound resilience is good, compared with the comparative examples.
Claims (4)
1. A preparation method of an automobile dust cover with good rebound resilience is characterized by comprising the following steps:
(1) taking ethylene propylene diene monomer, semi-reinforcing carbon black and butadiene rubber BR according to the weight parts, fully mixing, adding other raw materials according to the weight parts, and fully mixing to obtain a sizing material for later use;
(2) preparing the automobile dust cover by using the rubber material according to a conventional process;
the automobile dust cover with good rebound resilience is prepared from the following raw materials in parts by weight:
130-140 ethylene propylene diene monomer, 40-50 semi-reinforcing carbon black, 10-12 butadiene rubber BR, 40-60 natural rubber, 3-5 anti-aging agent RD, 1-2 paraffin oil, 1-2 accelerator CZ, 2-4 sulfur and 100-120 activated filler.
2. The preparation method of the automobile dust cover with good resilience as claimed in claim 1, wherein the preparation method comprises the following steps: the activated filler is prepared from the following raw materials in parts by weight:
40-43 parts of mica powder, 10-15 parts of attapulgite, 1-2 parts of magnesium oxide, 1-4 parts of silane coupling agent kh550, 2-4 parts of stearic acid and 1-2 parts of sodium lignosulfonate.
3. The preparation method of the automobile dust cover with good resilience as claimed in claim 2, wherein the preparation method comprises the following steps: the preparation method of the activated filler comprises the following steps:
(1) uniformly mixing mica powder and attapulgite to obtain compound powder for later use;
(2) atomizing a 14-17% hydrochloric acid solution, mixing the atomized solution with the compound powder, standing the mixture for 15-24 hours at 50-60 ℃, adding a proper amount of water, stirring the mixture evenly, grinding the slurry at 50-80 ℃ to 400-mesh, adding sodium hydroxide to adjust the slurry to be neutral, mixing the slurry with the rest raw materials evenly, standing the mixture for 20-40 minutes, and performing spray drying to obtain the finished product.
4. The preparation method of the automobile dust cover with good resilience as claimed in claim 3, wherein the preparation method comprises the following steps: each kilogram of the compound powder is mixed with 15 to 23mL of 14 to 17 percent hydrochloric acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011193254.1A CN112341718A (en) | 2020-10-30 | 2020-10-30 | Preparation method of automobile dust cover with good resilience |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011193254.1A CN112341718A (en) | 2020-10-30 | 2020-10-30 | Preparation method of automobile dust cover with good resilience |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112341718A true CN112341718A (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011193254.1A Pending CN112341718A (en) | 2020-10-30 | 2020-10-30 | Preparation method of automobile dust cover with good resilience |
Country Status (1)
| Country | Link |
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| CN (1) | CN112341718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980068A (en) * | 2021-03-08 | 2021-06-18 | 上海瀛宏汽车配件有限公司 | Anti-aging rubber composition for automobile parts |
| CN115785673A (en) * | 2022-12-01 | 2023-03-14 | 浙江创城高分子材料有限公司 | Natural rubber composition and rubber product for dust cover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102596A (en) * | 2012-11-14 | 2013-05-15 | 安徽金桥电缆有限公司 | Cable sheath insulating material for nuclear power station and preparation method of cable sheath insulating material |
| CN103524892A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Insulation ethylene-propylene-diene monomer sheath material for rail traffic cable and preparation method thereof |
| CN103724824A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Motor vehicle synthetic brake fluid expansibility resistant rubber composition |
| CN111138725A (en) * | 2019-12-23 | 2020-05-12 | 贵州科润密封科技有限公司 | High-strength wear-resistant modified natural rubber and preparation method thereof |
-
2020
- 2020-10-30 CN CN202011193254.1A patent/CN112341718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102596A (en) * | 2012-11-14 | 2013-05-15 | 安徽金桥电缆有限公司 | Cable sheath insulating material for nuclear power station and preparation method of cable sheath insulating material |
| CN103524892A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Insulation ethylene-propylene-diene monomer sheath material for rail traffic cable and preparation method thereof |
| CN103724824A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Motor vehicle synthetic brake fluid expansibility resistant rubber composition |
| CN111138725A (en) * | 2019-12-23 | 2020-05-12 | 贵州科润密封科技有限公司 | High-strength wear-resistant modified natural rubber and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112980068A (en) * | 2021-03-08 | 2021-06-18 | 上海瀛宏汽车配件有限公司 | Anti-aging rubber composition for automobile parts |
| CN115785673A (en) * | 2022-12-01 | 2023-03-14 | 浙江创城高分子材料有限公司 | Natural rubber composition and rubber product for dust cover |
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Application publication date: 20210209 |
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