CN110157050A - A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof - Google Patents
A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof Download PDFInfo
- Publication number
- CN110157050A CN110157050A CN201810212130.XA CN201810212130A CN110157050A CN 110157050 A CN110157050 A CN 110157050A CN 201810212130 A CN201810212130 A CN 201810212130A CN 110157050 A CN110157050 A CN 110157050A
- Authority
- CN
- China
- Prior art keywords
- parts
- natural rubber
- ageing
- resistant
- mixer
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- 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
-
- 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
Abstract
The invention discloses a kind of vibration isolator rubber bearing ageing-resistant natural rubber materials and preparation method thereof, raw material including following parts by weight: 95-110 parts of natural rubber, 10-15 parts of natural gas semi-reinforcing hydrocarbon black, middle medium thermal carbon blacks 8-12 parts, 6-8 parts of aromatic naphtha, 3.5-5.5 parts of anti-aging agent, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts and DTDM 1.5-2.0 parts of promotor.Formula of the invention improves the ageing-resistant performance of natural rubber, on the other hand the present invention prepares ageing-resistant natural rubber material by the way of vulcanizing the longer time at a lower temperature, ensure to form the cross-linked network based on monosulfidic bond in sizing material, thus can be further improved the ageing-resistant performance of natural rubber；The method of the present invention is simple and easy to operate, and the ageing-resistant natural rubber material performance of preparation is stablized, and can be used for manufacturing architectural vibration-insulation rubber supporting seat etc..
Description
Technical field
The present invention relates to a kind of rubber, the ageing-resistant natural rubber material of specifically a kind of vibration isolator rubber bearing.
Background technique
Rubber material strand under the effect of light, heat, oxygen, ozone and mechanical stress can be broken, and reduced performance shows
Aging out.Thermo-oxidative ageing is occurred below at 200 degrees Celsius, oxygen is the principal element for causing aging, and heat only serves active oxidation, adds
The effect of fast oxidation rate.Oxidation can not prevent, but can try to delay their generation, keep rubber product maximum
Play its use value.Oxygen is a kind of active element, it easily reacts with unsaturated rubber at typical condition, higher
Temperature or it is certain under the conditions of can also react with unsaturated rubber.After unsaturated rubber is oxidized, mechanical property can occur
Significant changes.And architectural vibration-insulation rubber supporting seat is placed in building bottom, it is necessary to the difference for considering each regional climate, as south will examine
Consider heat-resisting, the north will consider to resist cold, and highlands will consider ultraviolet radiation etc..
In recent years, architectural vibration-insulation rubber supporting seat manufacturing enterprise and research unit are continuously improving always and are optimizing its production
Formula and sulfuration process to delay the aging of rubber improve the service life of architectural vibration-insulation rubber supporting seat.Since natural rubber is
Unsaturated carbon chains rubber, and the α hydrogen atom in unsaturated carbon chains rubber macromolecule structural unit, reactivity with higher,
Oxidative dehydrogenation can occur at a lower temperature, and generate stable macromolecular radical R, then carry out oxidative chain
Formula reaction, oxidation have apparent autocatalysis feature.A kind of architectural vibration-insulation rubber supporting seat of the present invention is with ageing-resistant
Natural rubber material wherein the antioxidant 4010NA and antioxidant D that contain can capture free radical R and ROO, and is tied therewith
Symphysis is at stable compound and low activity free radical, to prevent the progress of chain transfer reaction, reduces the speed that rubber is oxidized, mentions
High natural rubber ageing-resistant performance.
Summary of the invention
The purpose of the present invention is to provide a kind of ageing-resistant natural rubber materials of vibration isolator rubber bearing, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of ageing-resistant natural rubber material of vibration isolator rubber bearing, the raw material including following parts by weight: natural rubber 95-
110 parts, 10-15 parts of natural gas semi-reinforcing hydrocarbon black, middle medium thermal carbon blacks 8-12 parts, 6-8 parts of aromatic naphtha, anti-aging agent 3.5-
5.5 parts, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts and DTDM 1.5-2.0 parts of promotor.
As a further solution of the present invention: anti-aging agent is the antioxidant 4010NA that mass ratio is 3:2:2, anti-aging agent RD
With the mixture of antioxidant D.
The preparation method of the ageing-resistant natural rubber material of the vibration isolator rubber bearing, the specific steps are as follows:
Step 1, step 1 weigh raw material according to parts by weight, spare；
Natural rubber is placed in mixer by step 2, is plasticated 10-15 minutes under 120-130 degrees Celsius, is parked 20-
26 hours, the natural rubber after plasticating is refined 60-80 seconds in mixer, anti-aging agent, zinc oxide, tristearin are added into mixer
Acid is with promotor and mixing 100-135 seconds in mixer, then natural gas semi-reinforcing hydrocarbon black, middle particle are added into mixer
It thermal crack black and aromatic naphtha and is refined 10-15 minutes in mixer, it is thin 1-2 times logical on 18 cun of open mills after pouring out, under
It piece and dries in the air to 45 degrees Celsius hereinafter, spare；
The material of step 2 is placed in open mill and is added DTDM by step 3, after material feeding, 5 bottom sheet of Bao Tong,
It parks 24 hours, vulcanizes, finished product can be obtained.
As a further solution of the present invention: the condition of vulcanization is 130 degrees Celsius × 30 minutes.
Compared with prior art, the beneficial effects of the present invention are: formula of the invention improves the ageing-resistant of natural rubber
Performance, on the other hand the present invention prepares ageing-resistant natural rubber material by the way of vulcanizing the longer time at a lower temperature,
Ensure to form the cross-linked network based on monosulfidic bond in sizing material, thus can be further improved the resistance to ag(e)ing of natural rubber
Energy；The method of the present invention is simple and easy to operate, and the ageing-resistant natural rubber material performance of preparation is stablized, can be used for manufacturing building every
Shake rubber support etc..
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of ageing-resistant natural rubber material, the preparation method is as follows:
Step 1, weighs natural rubber 40Kg, natural gas semi-reinforcing hydrocarbon black 6Kg, middle medium thermal carbon blacks 4Kg, aromatic hydrocarbons
Oily 3.2Kg, antioxidant 4010NA 0.6Kg, anti-aging agent RD 0.4Kg, antioxidant D 0.4Kg, zinc oxide 2.0Kg, stearic acid
0.56Kg, promotor 0.72Kg and DTDM0.8Kg；
Natural rubber is placed in mixer by step 2, is plasticated 10-15 minutes under 120-130 degrees Celsius, is parked 20-
26 hours, the natural rubber after plasticating is refined 60-80 seconds in mixer, anti-aging agent, zinc oxide, tristearin are added into mixer
Acid, promotor and mixing 100-135 second in mixer, then the addition natural gas semi-reinforcing hydrocarbon black, middle particle into mixer
It thermal crack black and aromatic naphtha and is refined 10-15 minutes in mixer, it is thin 1-2 times logical on 18 cun of open mills after pouring out, under
Piece and dry in the air to 45 degrees Celsius or less it is spare；
The material of step 2 is placed in open mill and is added sulphur by step 3, after material feeding, 5 bottom sheet of Bao Tong,
It parks 24 hours, vulcanizes, finished product can be obtained.
Embodiment 2-5
Preparation method is same as Example 1, and only formulation dosage is different, but the range described in the method for the present invention it
It is interior.
The product component of embodiment 2-5 is shown in Table 1, unit is Kg.
Table 1
| Example 2 | Example 3 | Example 4 | Example 5 | |
| Natural rubber | 40 | 40 | 40 | 40 |
| Natural gas semi-reinforcing hydrocarbon black | 5.6 | 4.8 | 5.2 | 4.0 |
| Middle medium thermal carbon blacks | 3.6 | 4.0 | 4.4 | 4.8 |
| Aromatic naphtha | 2.8 | 2.4 | 2.8 | 2.4 |
| Antioxidant 4010NA | 0.68 | 0.76 | 0.88 | 0.96 |
| Anti-aging agent RD | 0.46 | 0.52 | 0.56 | 0.64 |
| Antioxidant D | 0.46 | 0.52 | 0.56 | 0.64 |
| Zinc oxide | 2.4 | 2.8 | 2.4 | 3.2 |
| Stearic acid | 0.6 | 0.48 | 0.52 | 0.4 |
| Promotor | 0.64 | 0.8 | 0.92 | 1.0 |
| DTDM | 0.68 | 0.72 | 0.64 | 0.6 |
The product of embodiment 1-5 is subjected to ageing-resistant performance test, test piece is standard test piece, and aging condition is that hot-air is old
Change 100 degrees Celsius × 168 hours.Hardness (shore) degree is according to GB/T513-1999；Tensile strength is according to GB/T528-1999；It draws
Disconnected elongation is according to GB/T3512-1999；Thermal aging property is tested according to the pertinent regulations of GB/T3512-2001, test
It the results are shown in Table 2.
Table 2
The product ageing-resistant performance of embodiment 1-5 is excellent as can be seen from Table 2.
α hydrogen since natural rubber is unsaturated carbon chains rubber, and in unsaturated carbon chains rubber macromolecule structural unit is former
Oxidative dehydrogenation can occur at a lower temperature for son, reactivity with higher, and generate stable macromolecular certainly
By base R, oxidation chain reaction is then carried out, oxidation has apparent autocatalysis feature.One kind of the present invention is built
The ageing-resistant natural rubber material of vibration isolator rubber bearing is built, wherein the antioxidant 4010NA and antioxidant D that contain can be captured from
By base R and ROO, and generation stable compound in combination and low activity free radical, to prevent the progress of chain transfer reaction,
The speed that rubber is oxidized is reduced, natural rubber ageing-resistant performance is improved.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of ageing-resistant natural rubber material of vibration isolator rubber bearing, which is characterized in that the raw material including following parts by weight: day
Right 95-110 parts of rubber, middle medium thermal carbon blacks 8-12 parts, 6-8 parts of aromatic naphtha, is prevented by 10-15 parts of natural gas semi-reinforcing hydrocarbon black
Old agent 3.5-5.5 parts, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts and DTDM 1.5-2.0 parts of promotor.
2. the ageing-resistant natural rubber material of vibration isolator rubber bearing according to claim 1, which is characterized in that described anti-old
Agent is the antioxidant 4010NA that mass ratio is 3:2:2, the mixture of anti-aging agent RD and antioxidant D.
3. a kind of preparation method of the ageing-resistant natural rubber material of vibration isolator rubber bearing as described in claim 1-2 is any,
It is characterized in that, specific step is as follows:
Step 1, step 1 weigh raw material according to parts by weight, spare；
Natural rubber is placed in mixer by step 2, plasticates 10-15 minutes under 120-130 degrees Celsius, it is small to park 20-26
When, the natural rubber after plasticating is refined 60-80 seconds in mixer, into mixer be added anti-aging agent, zinc oxide, stearic acid and
Promotor and mixing 100-135 seconds in mixer, then natural gas semi-reinforcing hydrocarbon black, middle particle hot tearing are added into mixer
It method carbon black and aromatic naphtha and is refined 10-15 minutes in mixer, thin 1-2 times logical on 18 cun of open mills after pouring out, bottom sheet is simultaneously
And it dries in the air to 45 degrees Celsius hereinafter, spare；
The material of step 2 is placed in open mill and is added DTDM by step 3, and after material feeding, 5 bottom sheet of Bao Tong are parked
24 hours, finished product can be obtained in vulcanization.
4. the vibration isolator rubber bearing according to claim 3 preparation method of ageing-resistant natural rubber material, feature exist
In the condition of the vulcanization is 130 degrees Celsius × 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212130.XA CN110157050A (en) | 2018-03-15 | 2018-03-15 | A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212130.XA CN110157050A (en) | 2018-03-15 | 2018-03-15 | A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110157050A true CN110157050A (en) | 2019-08-23 |
Family
ID=67636120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810212130.XA Pending CN110157050A (en) | 2018-03-15 | 2018-03-15 | A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110157050A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114573885A (en) * | 2022-01-18 | 2022-06-03 | 江苏冠联新材料科技股份有限公司 | High-performance rubber compound for damping support of highway bridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518208A (en) * | 2011-12-06 | 2012-06-27 | 云南震安减震技术有限公司 | Large-diameter laminated rubber bearing for building |
| CN103102513A (en) * | 2013-01-29 | 2013-05-15 | 云南震安减震技术有限公司 | Shock-insulation support laminated glue composition with less than 0.35 MPa of shear modulus |
-
2018
- 2018-03-15 CN CN201810212130.XA patent/CN110157050A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518208A (en) * | 2011-12-06 | 2012-06-27 | 云南震安减震技术有限公司 | Large-diameter laminated rubber bearing for building |
| CN103102513A (en) * | 2013-01-29 | 2013-05-15 | 云南震安减震技术有限公司 | Shock-insulation support laminated glue composition with less than 0.35 MPa of shear modulus |
Non-Patent Citations (2)
| Title |
|---|
| 上海成锦化工有限公司: "防老剂RD和防老剂4010NA的协同作用", 《环保在线》 * |
| 韩长日等: "《橡塑助剂生产工艺与技术》", 30 November 2015, 科学技术文献出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114573885A (en) * | 2022-01-18 | 2022-06-03 | 江苏冠联新材料科技股份有限公司 | High-performance rubber compound for damping support of highway bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105324429B (en) | Rubber composition for tire and pneumatic tire | |
| CN111253687B (en) | Blended rubber of silicon rubber and ethylene propylene diene monomer and preparation method thereof | |
| CN112210215B (en) | Low-tensile permanent deformation conductive silicone rubber and preparation method thereof | |
| CN113652011A (en) | Low-heat-generation high-heat-conductivity tread rubber composition, mixing method thereof and tire | |
| CN112940283B (en) | Self-repairing polymer hydrogel based on acylhydrazone bond and preparation method thereof | |
| CN109096542B (en) | Load type silicon rubber tracking-resistant agent, preparation method and application | |
| CN110157050A (en) | A kind of vibration isolator rubber bearing ageing-resistant natural rubber material and preparation method thereof | |
| CN111763357B (en) | Anti-aging and color-changing butadiene rubber/silicone rubber composite material and preparation method thereof | |
| CN110551269A (en) | Heat-resistant room-temperature rapid self-repairing elastomer and preparation method and application thereof | |
| CN102276990A (en) | Method for preparing heat-resisting and acid-resisting organic silicon rubber | |
| CN108410177A (en) | Resistance to cracking aging cable cover(ing) of one kind and preparation method thereof | |
| CN108137890B (en) | Rubber formulations with enhanced flex fatigue resistance | |
| CN110283369A (en) | Heat oxygen aging resistance epoxy natural rubber nanocomposite and preparation method thereof | |
| CN114957801A (en) | Silicon dioxide for high-temperature aging resistant silicone rubber and preparation method thereof | |
| CN111040167A (en) | Polymer for cross-linking and curing silicone rubber and preparation method thereof | |
| CN116396695A (en) | High-protection mica composite material for cable wrapping filling and preparation method thereof | |
| CN110295414A (en) | A kind of environment-friendly and energy-efficient rubber latex thread product and preparation method thereof | |
| CN106146788B (en) | Tire modified organic silicon material and preparation method thereof | |
| CN114672172A (en) | Silicone rubber capable of being stored for long time by adding platinum vulcanizing agent and preparation method thereof | |
| CN114835959A (en) | Ultralow rolling resistance rubber composition for four-season tire, mixing method thereof and tire | |
| CN114854102A (en) | Low rolling resistance all-steel radial tire tread composition and preparation method thereof | |
| CN106832865A (en) | A kind of antistatic material for handle casing and preparation method thereof | |
| CN107298803B (en) | Polysiloxane additive for improving aging resistance of ethylene propylene diene monomer and preparation method thereof | |
| CN110564082A (en) | Fluororubber for high-temperature cable insulating layer | |
| CN111662541A (en) | Silicon-boron-nitrogen-alkane modified high-temperature-resistant polyurethane rubber and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |