CN112519286A - Composition for tire curing bladder and tire curing bladder - Google Patents
Composition for tire curing bladder and tire curing bladder Download PDFInfo
- Publication number
- CN112519286A CN112519286A CN202011278370.3A CN202011278370A CN112519286A CN 112519286 A CN112519286 A CN 112519286A CN 202011278370 A CN202011278370 A CN 202011278370A CN 112519286 A CN112519286 A CN 112519286A
- Authority
- CN
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- Prior art keywords
- parts
- tire
- curing bladder
- tire curing
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- -1 polyethylene Polymers 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 6
- 239000004359 castor oil Substances 0.000 claims abstract description 5
- 235000019438 castor oil Nutrition 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims abstract description 5
- 239000013032 Hydrocarbon resin Substances 0.000 claims abstract description 4
- 229920006270 hydrocarbon resin Polymers 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920002681 hypalon Polymers 0.000 claims description 2
- 239000013618 particulate matter Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000004073 vulcanization Methods 0.000 abstract description 11
- 230000004888 barrier function Effects 0.000 abstract description 6
- 239000002775 capsule Substances 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- MPPPKRYCTPRNTB-UHFFFAOYSA-N 1-bromobutane Chemical compound CCCCBr MPPPKRYCTPRNTB-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0654—Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms
-
- 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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- 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
-
- 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
-
- 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
- C08L2205/05—Polymer mixtures characterised by other features containing polymer components which can react with one another
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of tire rubber, in particular to a composition for a tire curing bladder and the tire curing bladder. The rubber material comprises the following components in parts by weight: 80-100 parts of butyl rubber, 0-5 parts of chloroprene rubber, 5-20 parts of polyethylene rubber, 45-54 parts of carbon black N22045, 5-40 parts of an air inhibitor, 5-10 parts of castor oil, 0-8 parts of a hydrocarbon resin mixture, 0-2 parts of protective wax, 5-10 parts of zinc oxide and 20-26 parts of a vulcanizing agent. The invention uses the polyethylene rubber to replace part of butyl rubber, and improves the high temperature resistance of the tire vulcanization capsule. The NM360 filler replaces partial carbon black, the gas resistance and the barrier property of the tire curing bladder are improved, the tire curing bladder has good mechanical property and high temperature resistance, and the manufacturing cost of the tire bladder is saved on the premise that the manufacturing process of the tire bladder is not changed.
Description
Technical Field
The invention relates to the technical field of tire rubber, in particular to a composition for a tire curing bladder and the tire curing bladder.
Background
As is well known, the quality of a tire curing bladder used as a necessary auxiliary material in the tire manufacturing process directly influences the quality of a tire and the production cost of a tire manufacturing enterprise. At present, in order to improve the tire vulcanization production efficiency, tire manufacturing enterprises generally adopt a high-temperature short-time thought to design a vulcanization process. Taking the nitrogen-filled tire vulcanization process which is started in recent years as an example, the process can be understood as firstly filling steam with a certain temperature to provide heat required by tire vulcanization, and then filling nitrogen with a certain pressure to provide pressure required by tire vulcanization. Wherein the steam temperature is generally 190 ℃ and 215 ℃, and the nitrogen pressure is generally more than 2.5 MPa. The working conditions of high temperature and high pressure during the manufacture of the tire put higher requirements on the heat resistance and the gas barrier resistance of the existing tire curing bladder. In addition, the conventional tire curing bladder generally adopts high-content butyl rubber as raw rubber, and a large amount of carbon black as a filler, so that the cost is high, and the tire curing bladder is difficult to occupy a favorable position in intense market competition.
CN109294085A discloses a low-cost vulcanized capsule and a preparation method thereof, belonging to the technical field of high polymer materials, and the raw materials in the claims comprise: 100-120 parts of butyl bromide gel, 24-36 parts of porous powder quartz, 10-12 parts of trimethylolpropane tri (methyl) acrylate, 3-6 parts of calcium carbonate, 0.5-1 part of sodium silicate, 6-8 parts of palmitic acid, 3-4 parts of stearic acid, 6-7 parts of castor oil, 10-14 parts of phenolic resin, 1-2 parts of an accelerator DM and 8-10 parts of magnesium oxide. Although the tire bladder is low in cost, the raw materials contain porous powder quartz and calcium carbonate, so that the dispersibility of the fillers in the butyl bromide is poor, the quality problem of the tire vulcanization bladder is more, and the gas barrier property of the bladder is reduced by replacing the fillers such as carbon black with the porous powder quartz and the calcium carbonate. The service life of the tire curing bladder is short due to the two points, so that the technical scheme is difficult to industrialize.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a composition for a tire curing bladder and the tire curing bladder, wherein the bladder has the characteristics of high heat resistance, high gas barrier property and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the composition for the tire curing bladder is characterized by comprising the following components in parts by weight: 80-100 parts of butyl rubber, 0-5 parts of chloroprene rubber, 5-20 parts of polyethylene rubber, 45-54 parts of carbon black N22045, 5-40 parts of an air inhibitor, 5-10 parts of castor oil, 0-8 parts of a hydrocarbon resin mixture, 0-2 parts of protective wax, 5-10 parts of zinc oxide and 20-26 parts of a vulcanizing agent.
The invention can also be realized by the following measures: the polyethylene rubber is modified chlorosulfonated polyethylene rubber. The air inhibitor is NM360 ultrafine lamellar structure particulate matter with the density of 1.19 mg.m-3. The vulcanizing agent comprises 20-25 parts of alkyl phenolic vulcanized resin and 0-1 part of common sulfur powder.
A tire curing bladder prepared by using the composition for a tire curing bladder.
The invention has the beneficial effects that the polyethylene rubber is used for replacing part of butyl rubber, so that the high temperature resistance of the tire vulcanization capsule is improved. The NM360 filler replaces partial carbon black, the gas barrier resistance of the tire curing bladder is improved, the tire curing bladder has good mechanical property and high temperature resistance, and the manufacturing cost of the tire bladder is saved on the premise that the manufacturing process of the tire bladder is not changed.
Detailed Description
The present invention will be further described with reference to the following examples.
Table 1: first-stage rubber compound mixing table
According to the raw material weight ratio in Table 1, the rotating speed of an internal mixer is 30-50rpm, the top ram pressure is 0.55-0.65MPa, raw rubber and NM360 (if any) are firstly put into the internal mixer, ram mixing is carried out for 20-40s, ram is lifted, carbon black is put into the internal mixer, ram mixing is carried out for 30-60s, ram is lifted, castor oil is put into the internal mixer, ram mixing is carried out to 160-170 ℃, ram is lifted and rubber is discharged, a section of rubber compound is prepared, and the rubber compound is stood for 8-72h at room temperature for standby.
Table 2: two-stage rubber compound compounding table
According to the raw material weight ratio in the table 2, the rotating speed of an internal mixer is 20-30rpm, the top ram pressure is 0.55-0.65MPa, a first-stage rubber compound, zinc oxide, a hydrocarbon resin mixture and protective wax are put into the internal mixer, the weight is pressed and mixed for 10-30s, carbon black is lifted and put into the internal mixer, the weight is pressed and mixed for 30-50s, the lifted weight is pressed and mixed to 110-120 ℃ through the weight, the weight is lifted and rubber is discharged, a second-stage rubber compound is prepared, and the rubber compound is placed for 8-48h at room temperature for standby.
Table 3: three-section rubber compound formula table
According to the raw material weight ratio in Table 3, the internal mixer rotates at 20-25rpm, the top plug pressure is 0.55-0.65MPa, the second-stage rubber compound, the vulcanized resin and the sulfur (if any) are put into the internal mixer and are pressed and mixed for 30-50s, the ram is lifted and is pressed and mixed to 95-105 ℃, the ram is lifted and rubber is discharged, the third-stage rubber compound is prepared, and the rubber compound is stood for 4-24h at room temperature for standby.
And then, normally extruding the rubber strip from the three-stage rubber compound according to a general production process in the tire bladder industry, filling the rubber strip into a mold and vulcanizing to obtain the tire vulcanization bladder.
Table 4: physical and mechanical properties of tyre vulcanization capsule rubber compound
From table 4, it can be seen that the thermal aging coefficient of the above examples is improved by about 9% compared with the comparative example, and the physical continuous performance of the examples is not much different from the comparative example, and can meet the performance requirement of the tire curing bladder.
The comparative example started to generate air holes when being used for about 150 times, the example started to generate air holes when being used for about 200 times, and the tire curing bladder of the example has obvious improvement on heat aging resistance and air barrier resistance under high-temperature and high-pressure conditions.
Table 5: tyre vulcanization capsule manufacturing cost and service life
The cost index (example tire curing bladder cost/comparative tire curing bladder cost) is 100.
The service life index (number of uses of example tire curing bladder/number of uses of comparative tire curing bladder) is 100.
As can be seen from Table 5, the manufacturing cost of the tire bladder of the present invention is reduced by about 5% as compared to the comparative example, and the service life is improved by about 10% as compared to the comparative example.
Claims (5)
1. The composition for the tire curing bladder is characterized by comprising the following components in parts by weight: 80-100 parts of butyl rubber, 0-5 parts of chloroprene rubber, 5-20 parts of polyethylene rubber, 45-54 parts of carbon black N22045, 5-40 parts of an air inhibitor, 5-10 parts of castor oil, 0-8 parts of a hydrocarbon resin mixture, 0-2 parts of protective wax, 5-10 parts of zinc oxide and 20-26 parts of a vulcanizing agent.
2. The composition for a tire curing bladder as claimed in claim 1, wherein said polyethylene rubber is a modified chlorosulfonated polyethylene rubber.
3. The composition for a tire curing bladder according to claim 1, wherein said air inhibitor is NM360 ultrafine lamellar structured particulate matter having a density of 1.19 mg-m-3。
4. The composition for a tire curing bladder according to claim 1, wherein said curing agent comprises an alkyl phenol-formaldehyde curing resin 20-25 parts and common sulfur powder 0-1 part.
5. A tire curing bladder comprising a tire curing bladder prepared using the composition for a tire curing bladder of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011278370.3A CN112519286A (en) | 2020-11-16 | 2020-11-16 | Composition for tire curing bladder and tire curing bladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011278370.3A CN112519286A (en) | 2020-11-16 | 2020-11-16 | Composition for tire curing bladder and tire curing bladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112519286A true CN112519286A (en) | 2021-03-19 |
Family
ID=74980927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011278370.3A Pending CN112519286A (en) | 2020-11-16 | 2020-11-16 | Composition for tire curing bladder and tire curing bladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112519286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583354A (en) * | 2021-08-18 | 2021-11-02 | 三角轮胎股份有限公司 | High-thermal-conductivity vulcanized tire capsule composition and production method of capsule thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127998A2 (en) * | 1983-06-01 | 1984-12-12 | Polysar Limited | Tubeless pneumatic tyre |
| CN101497222A (en) * | 2008-01-30 | 2009-08-05 | 山东玲珑橡胶有限公司 | Non-isothermal vulcanizing method for curing bladder |
| CN103554554A (en) * | 2013-10-18 | 2014-02-05 | 山东省三利轮胎制造有限公司 | New formula and manufacture method of rubber for manufacturing tire inner liner |
| CN108162226A (en) * | 2017-12-25 | 2018-06-15 | 山东西水永橡胶有限公司 | A kind of preparation method of high heat conduction type tire curing bladder |
| CN109369979A (en) * | 2018-09-15 | 2019-02-22 | 南京亚通橡塑有限公司 | A kind of tire curing bladder |
-
2020
- 2020-11-16 CN CN202011278370.3A patent/CN112519286A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127998A2 (en) * | 1983-06-01 | 1984-12-12 | Polysar Limited | Tubeless pneumatic tyre |
| CN101497222A (en) * | 2008-01-30 | 2009-08-05 | 山东玲珑橡胶有限公司 | Non-isothermal vulcanizing method for curing bladder |
| CN103554554A (en) * | 2013-10-18 | 2014-02-05 | 山东省三利轮胎制造有限公司 | New formula and manufacture method of rubber for manufacturing tire inner liner |
| CN108162226A (en) * | 2017-12-25 | 2018-06-15 | 山东西水永橡胶有限公司 | A kind of preparation method of high heat conduction type tire curing bladder |
| CN109369979A (en) * | 2018-09-15 | 2019-02-22 | 南京亚通橡塑有限公司 | A kind of tire curing bladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583354A (en) * | 2021-08-18 | 2021-11-02 | 三角轮胎股份有限公司 | High-thermal-conductivity vulcanized tire capsule composition and production method of capsule thereof |
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| PB01 | Publication | ||
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Application publication date: 20210319 |