CN114230878A - NBR BUMPER sizing material for SUV automobile tail door lock system - Google Patents
NBR BUMPER sizing material for SUV automobile tail door lock system Download PDFInfo
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- CN114230878A CN114230878A CN202110602814.2A CN202110602814A CN114230878A CN 114230878 A CN114230878 A CN 114230878A CN 202110602814 A CN202110602814 A CN 202110602814A CN 114230878 A CN114230878 A CN 114230878A
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- nbr
- rubber
- bumper
- lock system
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000004513 sizing Methods 0.000 title claims description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 63
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000006229 carbon black Substances 0.000 claims abstract description 25
- 238000004073 vulcanization Methods 0.000 claims abstract description 20
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 18
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 18
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008117 stearic acid Substances 0.000 claims abstract description 18
- 239000011593 sulfur Substances 0.000 claims abstract description 18
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 18
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 229920003169 water-soluble polymer Polymers 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 12
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 32
- 239000000945 filler Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 21
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010074 rubber mixing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 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
- 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
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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 an NBR BUMPER rubber material for a SUV automobile tail door lock system, which comprises the following components in parts by weight: raw rubber: 100 parts, zinc oxide: 3-5 parts of stearic acid: 1-2 parts of carbon black: 80-100 parts of filler: 0-20 parts of DOS softening oil: 10-15 parts of an anti-aging agent, 2-3.5 parts of a processing aid: 1-2 parts of sulfur, 0.8-1.2 parts of DTDM-80, 0.8-1.2 parts of accelerator CBS-80 and 0.6-1.0 part of TMTD-80. In addition, the invention also discloses a preparation method, which comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are mixed together, then mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur and the like to prepare the rubber A, cooled and placed, added with the vulcanization accelerator and mixed uniformly to prepare the rubber B.
Description
Technical Field
The invention relates to a sizing material and a preparation method thereof, in particular to development of a low-temperature-resistant, impact-resistant and high-hardness NBR BUMPER sizing material for a SUV automobile tail door lock system.
Background
For the NBR BUMPER rubber product of the SUV automobile tail door lock system, the functional requirement that the product has impact durability which can not be damaged for 5 ten thousand times under the action of larger impact force is required besides the basic physical and mechanical properties of higher hardness, tensile strength, pressure change, low temperature resistance below minus 45 ℃ and the like.
For example: chinese patent literature with publication number CN104194089A and publication date of 2014 12 and 10 entitled NBR BLMPER rubber material for a vehicle door lock system and preparation process thereof discloses NBR BI MPER rubber material for a vehicle door lock system, which comprises, by weight, 50-70 parts of NBR raw rubber, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 70-100 parts of carbon black, 30-40 parts of filler, 15-25 parts of DoS softening oil, 1-3 parts of anti-aging agent, 0.5-1 part of sulfur and 3-4 parts of vulcanization accelerator; the preparation process comprises mixing two kinds of NB uniformly, mixing with zinc oxide, stearic acid, carbon black, filler, DOS softening oil, antioxidant and sulfur uniformly to obtain A rubber compound; and cooling and standing the rubber A, adding a vulcanization accelerator, and mixing uniformly. However, it should be noted that the technical solution disclosed in the patent document cannot satisfy the performance requirements of the conventional SUV in terms of high temperature and physical and mechanical properties.
Based on the above, the sizing material for the SUV automobile tail door lock system is expected to be obtained, and the sizing material has the functional requirements of low temperature Tg (Tg) below minus 45 ℃ and high load impact resistance, cyclic durability and the like besides certain physical and mechanical properties.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an NBR BUMPER rubber material for a SUV automobile tail door lock system and a preparation method thereof. The sizing material for the automobile tail door lock system is a low temperature resistant, impact resistant and high hardness NBR BUMPER sizing material for the SUV automobile tail door lock system.
In order to achieve the above object, the present invention is achieved by the following aspects:
the invention provides an NBR BUMPER rubber material for a SUV automobile tail door lock system, which comprises the following components in parts by weight:
raw rubber: 100 parts of (a) a water-soluble polymer,
zinc oxide: 3 to 5 parts of (A) a water-soluble polymer,
stearic acid: 1 to 2 parts of (A) a water-soluble polymer,
carbon black: 80 to 100 parts of (a) a water-soluble polymer,
filling: 0 to 20 parts of (A) a water-soluble polymer,
DOS softening oil: 10-15 parts of (a) a water-soluble polymer,
2-3.5 parts of an anti-aging agent,
processing aid: 1 to 2 parts of (A) a water-soluble polymer,
0.8 to 1.2 parts of sulfur,
0.8 to 1.2 portions of DTDM-80,
1-2 parts of accelerator CBS-80,
and 0.6-1.0 part of TMTD-80.
Preferably, the raw rubber consists of raw rubber of Alanenocathies NBR 1846F and raw rubber of NBR with the acrylonitrile content of 18 percent.
Preferably, the carbon black employs N550 and/or N330.
Preferably, DOS with good low-temperature resistance is adopted as the DOS softening oil. Chemical name of DOS softening oil herein: di (2-ethylhexyl) sebacate, CAS: 122-62-3 with the molecular formula of C26H50O4。
Preferably, the property of the NBR BUMPER rubber material of the SUV automobile tail door lock system is as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, and no damage for 7 ten thousand times under the condition of-40 ℃ in a product loading test.
In a second aspect, the present invention provides a method for preparing the NBR buffer rubber material for a rear door lock system of an SUV automobile, wherein the preparation method comprises the following steps:
the rubber material mixing process comprises the following steps: mixing raw rubber uniformly, then mixing the raw rubber with zinc oxide, stearic acid, carbon black, softening oil and sulfur uniformly to prepare rubber A, cooling, standing, adding an accelerant, and mixing uniformly to prepare rubber B.
In the above raw rubber mixing process, for example, raw rubber of Arlansiedae NBR 1846F and raw rubber of NBR having an acrylonitrile content of 18% may be uniformly blended.
Preferably, the preparation method further comprises a vulcanization process.
Preferably, the vulcanization process specifically includes: the first-stage vulcanization condition is 175 ℃, the duration is 3-5 minutes, and the pressure is 15-18 MPa.
Compared with the prior art, the invention has the following beneficial effects:
according to the technical scheme disclosed by the invention, the formula and the mixing process are improved, the processing safety of the rubber material is greatly improved, and the prepared rubber compound for the automobile sealing strip has stable Mooney viscosity and vulcanization performance, good consistency, excellent quality and strong comprehensive performance.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The composition comprises, by weight, 100 parts of Arlansiedaceae NBR 1846F crude rubber, 3 parts of zinc oxide, 1 part of stearic acid, 80 parts of carbon black, 0 part of filler, 10 parts of DOS softening oil, 2 parts of anti-aging agent and a processing aid: 1 part, 0.8 part of sulfur, 0.8 part of DTDM-80, 1 part of accelerator CBS-80 and 0.6 part of TMTD-80. Selecting materials: the NBR with 18 percent of acrylonitrile content is used singly, the carbon black adopts N550/N330, and the softening oil adopts DOS with good low temperature resistance.
The preparation process comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are uniformly mixed together, then uniformly mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur, an anti-aging agent and a processing aid to prepare rubber A, cooled and placed, added with DTDM-80, an accelerator CBS-80 and TMTD-80 and uniformly mixed to prepare rubber B.
And (3) a vulcanization process: first-stage vulcanization conditions: 175 ℃ for 3-5 minutes and 15-18 MPa. Tests prove that the rubber material meets the performance requirements, and the product meets the requirements of low-temperature hardness and impact durability. Has already been put into production.
The main properties of the sizing material are as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, the Tg-55 ℃ of the sizing material, and no damage for 7 ten thousand times under the condition of-40 ℃ of product loading test.
Example 2
The composition comprises, by weight, 100 parts of Arlansieceae NBR 1846F crude rubber, 3.5 parts of zinc oxide, 1.5 parts of stearic acid, 85 parts of carbon black, 5 parts of filler, 12 parts of DOS softening oil, 2.5 parts of anti-aging agent and a processing aid: 1.5 parts of sulfur, 1 part of DTDM-80, 1.5 parts of accelerator CBS-80 and 0.8 part of TMTD-80. Selecting materials: the NBR with 18 percent of acrylonitrile content is used singly, the carbon black adopts N550/N330, and the softening oil adopts DOS with good low temperature resistance.
The preparation process comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are uniformly mixed together, then uniformly mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur, an anti-aging agent and a processing aid to prepare rubber A, cooled and placed, added with DTDM-80, an accelerator CBS-80 and TMTD-80 and uniformly mixed to prepare rubber B.
And (3) a vulcanization process: first-stage vulcanization conditions: 175 ℃ for 3-5 minutes and 15-18 MPa. Tests prove that the rubber material meets the performance requirements, and the product meets the requirements of low-temperature hardness and impact durability. Has already been put into production.
The main properties of the sizing material are as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, the Tg-55 ℃ of the sizing material, and no damage for 7 ten thousand times under the condition of-40 ℃ of product loading test.
Example 3
The composition comprises, by weight, 100 parts of Arlansieceae NBR 1846F crude rubber, 4 parts of zinc oxide, 1 part of stearic acid, 90 parts of carbon black, 15 parts of a filler, 14 parts of DOS softening oil, 2.9 parts of an anti-aging agent and a processing aid: 1.5 parts of sulfur, 1.1 parts of DTDM-80, 1.2 parts of accelerator CBS-80 and 1.8 parts of TMTD-80. Selecting materials: the NBR with 18 percent of acrylonitrile content is used singly, the carbon black adopts N550/N330, and the softening oil adopts DOS with good low temperature resistance.
The preparation process comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are uniformly mixed together, then uniformly mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur, an anti-aging agent and a processing aid to prepare rubber A, cooled and placed, added with DTDM-80, an accelerator CBS-80 and TMTD-80 and uniformly mixed to prepare rubber B.
And (3) a vulcanization process: first-stage vulcanization conditions: 175 ℃ for 3-5 minutes and 15-18 MPa. Tests prove that the rubber material meets the performance requirements, and the product meets the requirements of low-temperature hardness and impact durability. Has already been put into production.
The main properties of the sizing material are as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, the Tg-55 ℃ of the sizing material, and no damage for 7 ten thousand times under the condition of-40 ℃ of product loading test.
Example 4
The composition comprises, by weight, 100 parts of Arlansieceae NBR 1846F crude rubber, 4.5 parts of zinc oxide, 1.8 parts of stearic acid, 95 parts of carbon black, 18 parts of a filler, 15 parts of DOS softening oil, 3 parts of an anti-aging agent and a processing aid: 2 parts of sulfur, 1.2 parts of DTDM-80, 1.2 parts of accelerator CBS-80 and 1.0 part of TMTD-80. Selecting materials: the NBR with 18 percent of acrylonitrile content is used singly, the carbon black adopts N550/N330, and the softening oil adopts DOS with good low temperature resistance.
The preparation process comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are uniformly mixed together, then uniformly mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur, an anti-aging agent and a processing aid to prepare rubber A, cooled and placed, added with DTDM-80, an accelerator CBS-80 and TMTD-80 and uniformly mixed to prepare rubber B.
And (3) a vulcanization process: first-stage vulcanization conditions: 175 ℃ for 3-5 minutes and 15-18 MPa. Tests prove that the rubber material meets the performance requirements, and the product meets the requirements of low-temperature hardness and impact durability. Has already been put into production.
The main properties of the sizing material are as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, the Tg-55 ℃ of the sizing material, and no damage for 7 ten thousand times under the condition of-40 ℃ of product loading test.
Example 5
The composition comprises, by weight, 100 parts of Arlansieceae NBR 1846F crude rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 100 parts of carbon black, 20 parts of a filler, 15 parts of DOS softening oil, 3.5 parts of an anti-aging agent and a processing aid: 2 parts of sulfur, 1.2 parts of DTDM-80, 1.2 parts of accelerator CBS-80 and 1.0 part of TMTD-80. Selecting materials: the NBR with 18 percent of acrylonitrile content is used singly, the carbon black adopts N550/N330, and the softening oil adopts DOS with good low temperature resistance.
The preparation process comprises the following steps: the rubber material mixing process comprises the following steps: the two NBRs are uniformly mixed together, then uniformly mixed with zinc oxide, stearic acid, carbon black, softening oil, sulfur, an anti-aging agent and a processing aid to prepare rubber A, cooled and placed, added with DTDM-80, an accelerator CBS-80 and TMTD-80 and uniformly mixed to prepare rubber B.
And (3) a vulcanization process: first-stage vulcanization conditions: 175 ℃ for 3-5 minutes and 15-18 MPa. Tests prove that the rubber material meets the performance requirements, and the product meets the requirements of low-temperature hardness and impact durability. Has already been put into production.
The main properties of the sizing material are as follows: hardness 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, the Tg-55 ℃ of the sizing material, and no damage for 7 ten thousand times under the condition of-40 ℃ of product loading test.
It should be noted that the prior art in the protection scope of the present invention is not limited to the examples given in the present application, and all the prior art which is not inconsistent with the technical scheme of the present invention, including but not limited to the prior patent documents, the prior publications and the like, can be included in the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. An NBR BUMPER sizing material for a SUV automobile tail door lock system is characterized by comprising the following components in parts by weight:
raw rubber: 100 parts of (a) a water-soluble polymer,
zinc oxide: 3 to 5 parts of (A) a water-soluble polymer,
stearic acid: 1 to 2 parts of (A) a water-soluble polymer,
carbon black: 80 to 100 parts of (a) a water-soluble polymer,
filling: 0 to 20 parts of (A) a water-soluble polymer,
DOS softening oil: 10-15 parts of (a) a water-soluble polymer,
2-3.5 parts of an anti-aging agent,
processing aid: 1 to 2 parts of (A) a water-soluble polymer,
0.8 to 1.2 parts of sulfur,
0.8 to 1.2 portions of DTDM-80,
1-2 parts of accelerator CBS-80,
and 0.6-1.0 part of TMTD-80.
2. The SUV automobile tail door lock system NBR BUMPER gum as claimed in claim 1, wherein the raw rubber is comprised of Arlansiedae NBR 1846F raw rubber and NBR raw rubber having an acrylonitrile content of 18%.
3. The SUV automobile tail door lock system NBR BUMPER compound of claim 1 wherein the carbon black is N550 and/or N330.
4. The NBR BUMPER rubber compound for SUV automobile tail door lock system according to claim 1, wherein DOS softening oil is DOS having good low temperature resistance.
5. The SUV automobile tail gate lock system NBR BUMPER compound of claim 1, wherein the SUV automobile tail gate lock system NBR BUMPER compound has the properties of: hardness of 79-81A, tensile strength: 16-17MPa, elongation: 220-250%, tear strength: 40-43N/mm, and no damage is caused for 7 ten thousand times under the condition of-40 ℃ in a product loading test.
6. A method of preparing the NBR BUMPER compound for SUV automobile tail gate lock system according to any one of claims 1 to 5, wherein the method comprises the steps of:
the rubber material mixing process comprises the following steps: mixing raw rubber uniformly, then mixing the raw rubber with zinc oxide, stearic acid, carbon black, softening oil and sulfur uniformly to prepare rubber A, cooling, standing, adding an accelerant, and mixing uniformly to prepare rubber B.
7. The method of claim 6, further comprising a vulcanization process.
8. The preparation method according to claim 7, characterized in that in the vulcanization process, in particular: the first-stage vulcanization condition is 175 ℃, the duration is 3-5 minutes, and the pressure is 15-18 MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110602814.2A CN114230878A (en) | 2021-05-31 | 2021-05-31 | NBR BUMPER sizing material for SUV automobile tail door lock system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110602814.2A CN114230878A (en) | 2021-05-31 | 2021-05-31 | NBR BUMPER sizing material for SUV automobile tail door lock system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151721A (en) * | 2014-08-21 | 2014-11-19 | 太仓荣南密封件科技有限公司 | Rubber material for preparation of vehicle operation rod system and preparation technology thereof |
| CN104194089A (en) * | 2014-08-21 | 2014-12-10 | 太仓荣南密封件科技有限公司 | NBR BUMPER sizing material for door lock system for vehicles and preparation process thereof |
| CN104292558A (en) * | 2014-09-25 | 2015-01-21 | 太仓荣南密封件科技有限公司 | CR BUMPER rubber for automobile door lock system and preparation process of rubber |
-
2021
- 2021-05-31 CN CN202110602814.2A patent/CN114230878A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151721A (en) * | 2014-08-21 | 2014-11-19 | 太仓荣南密封件科技有限公司 | Rubber material for preparation of vehicle operation rod system and preparation technology thereof |
| CN104194089A (en) * | 2014-08-21 | 2014-12-10 | 太仓荣南密封件科技有限公司 | NBR BUMPER sizing material for door lock system for vehicles and preparation process thereof |
| CN104292558A (en) * | 2014-09-25 | 2015-01-21 | 太仓荣南密封件科技有限公司 | CR BUMPER rubber for automobile door lock system and preparation process of rubber |
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