CN107474347A - Rubber modification method - Google Patents
Rubber modification method Download PDFInfo
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- CN107474347A CN107474347A CN201710730542.8A CN201710730542A CN107474347A CN 107474347 A CN107474347 A CN 107474347A CN 201710730542 A CN201710730542 A CN 201710730542A CN 107474347 A CN107474347 A CN 107474347A
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- rubber
- powder
- modified
- coupling agent
- dispersant
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- 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
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2319/00—Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/013—Additives applied to the surface of polymers or polymer particles
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a kind of Rubber modification method, Rubber modification method of the present invention is to mix coupling agent, solvent, dispersant, obtains mixed solution；Rubber powder is added, then adds modified powder, is mixed, adds crosslinking agent, then mix；The crude rubber powder that the present invention uses is mainly waste old caused a large amount of molecular fragment granulated rubber powder after pulverizer rupture crosslinks network structure, using the rubber-coated powder of modified powder, the simple modified effect of process for producing is preferable, and the modified rubber produced has good wearability and very high elasticity, breaking strength and elongation.
Description
Technical field
The present invention relates to rubber processing techniques field, especially a kind of Rubber modification method.
Background technology
Junked tire and its waste and old rubber recycle, and it is the way for realizing comprehensive utilization of resources to be modified and prepare rubber powder
Footpath；Rubber powder be by waste old after pulverizer rupture crosslinks network structure caused a large amount of molecular fragment particles, its surface
It is inert, it is made up of Multiple components such as rubber, carbon black, softening agent and other auxiliary agents, therefore it is poor with rubber, Compatibility in Plastics,
Properties of product can be reduced by directly mixing.
Rubber powder is made predominantly into reclaimed rubber use at present, but secondary pollution can be caused by producing reclaimed rubber, its tensile property
Also there was only 60% or so of rubber powder.Therefore, surface active modification is carried out to rubber powder, to improve the interface of rubber powder and rubber knot
Close, directly rubber powder is applied in the production of rubber, be the waste old pollution for administering getting worse, comprehensive utilization is useless
The effective way of old rubber.
At present, the method for modifying of rubber includes cis-butenedioic anhydride, the methods of CTC-IPN types in-situ modified scrap rubber；These methods
The characteristic of scrap rubber is improved to a certain extent, but comparison of processes is complicated, and modified effect unobvious.
The content of the invention
It is an object of the invention to provide a kind of Rubber modification method, this Rubber modification method can solve modified rubber
The problem of glue poor performance.
In order to solve the above problems, the technical solution adopted by the present invention is：
This Rubber modification method comprises the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is one kind in benzene,toluene,xylene；The dispersant is stearate；The coupling agent, solvent, the matter of dispersant
The ratio between amount is 1：10~15：1.5~2.5；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, is mixed, adds crosslinking agent, then mix
It is even；The modified powder is one kind in nano titanium oxide, super-fine talc, nano-calcium carbonate, ultrafine mica powder；It is described
Crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder, the mass ratio of crosslinking agent are 15~30：3~5：
0.3~1：0.1~0.3；The particle diameter of the modified powder is 10nm~4800nm.
In above-mentioned technical proposal, more specifically technical scheme can also be：Step B is mixed to use twice and is stirred
Machine, incorporation time are 5~20min, and the rotating speed of stirring mixer is 500~3000rpm.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
The crude rubber powder that the present invention uses is mainly that waste old is caused a large amount of after pulverizer rupture crosslinks network structure
Molecular fragment granulated rubber powder, using the rubber-coated powder of modified powder, the simple modified effect of process for producing is preferable, gives birth to
The modified rubber of production has good wearability and very high elasticity, breaking strength and elongation.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment 1
This implementation Rubber modification method comprises the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is benzene；The dispersant is stearate；The coupling agent, solvent, the mass ratio of dispersant are 1：10：2；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, using stirring mixer, during mixing
Between be 5min, the rotating speed of stirring mixer is 2000rpm, adds crosslinking agent, then mixes, using stirring mixer, incorporation time
For 5min, the rotating speed of stirring mixer is 1500rpm；The modified powder is nano titanium oxide, super-fine talc, nanometer
One kind in calcium carbonate, ultrafine mica powder；The crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder,
The mass ratio of crosslinking agent is 15：3.5：0.3：0.15；The particle diameter of the modified powder is 10nm.
Embodiment 2
This implementation Rubber modification method comprises the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is toluene；The dispersant is stearate；The coupling agent, solvent, the mass ratio of dispersant are 1：15：2.5；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, using stirring mixer, during mixing
Between be 20min, the rotating speed of stirring mixer is 1500rpm, adds crosslinking agent, then mixes, using stirring mixer, incorporation time
For 20min, the rotating speed of stirring mixer is 2500rpm；The modified powder is nano titanium oxide, super-fine talc, received
One kind in rice calcium carbonate, ultrafine mica powder；The crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder
Body, the mass ratio of crosslinking agent are 25：5：0.7：0.3；The particle diameter of the modified powder is 4800nm.
Embodiment 3
This implementation Rubber modification method comprises the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is dimethylbenzene；The dispersant is stearate；The coupling agent, solvent, the mass ratio of dispersant are 1：13：1.5；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, using stirring mixer, during mixing
Between be 15min, the rotating speed of stirring mixer is 500rpm, adds crosslinking agent, then mixes, using stirring mixer, incorporation time
For 15min, the rotating speed of stirring mixer is 3000rpm；The modified powder is nano titanium oxide, super-fine talc, received
One kind in rice calcium carbonate, ultrafine mica powder；The crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder
Body, the mass ratio of crosslinking agent are 30：4：1：0.2；The particle diameter of the modified powder is 2000nm.
Embodiment 4
This implementation Rubber modification method comprises the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is dimethylbenzene；The dispersant is stearate；The coupling agent, solvent, the mass ratio of dispersant are 1：10~15：
1.5~2.5；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, using stirring mixer, during mixing
Between be 5~20min, the rotating speed of stirring mixer is 3000rpm, adds crosslinking agent, then mixes, using stirring mixer, mixing
Time is 15min, and the rotating speed of stirring mixer is 500rpm；The modified powder be nano titanium oxide, super-fine talc,
One kind in nano-calcium carbonate, ultrafine mica powder；The crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder
Body, the mass ratio of crosslinking agent are 18：3：0.5：0.1；The particle diameter of the modified powder is 3500nm.
The physicochemical property of the rubber prepared by embodiment 1- embodiments 3 is determined, concrete outcome is shown in Table 1：
It can be seen that from the data of table 1：It is the modified rubber tensile intensity of the present invention, tearing strength, hard compared with unmodified rubber
The performances such as degree have a distinct increment.
Claims (2)
1. a kind of Rubber modification method, it is characterised in that comprise the following steps：
A, coupling agent, solvent, dispersant are mixed, obtains mixed solution；Wherein described coupling agent is titanate coupling agent；It is described
Solvent is one kind in benzene,toluene,xylene；The dispersant is stearate；The coupling agent, solvent, the matter of dispersant
The ratio between amount is 1：10~15：1.5~2.5；
B, rubber powder is added into mixed solution described in step A, then adds modified powder, is mixed, adds crosslinking agent, then mix
It is even；The modified powder is one kind in nano titanium oxide, super-fine talc, nano-calcium carbonate, ultrafine mica powder；It is described
Crosslinking agent is nitroethane；The mixed solution, rubber powder, modified powder, the mass ratio of crosslinking agent are 15~30：3~5：
0.3~1：0.1~0.3；The particle diameter of the modified powder is 10nm~4800nm.
2. Rubber modification method according to claim 1, it is characterised in that step B is mixed to use twice and is stirred
Machine, incorporation time are 5~20min, and the rotating speed of stirring mixer is 500~3000rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730542.8A CN107474347A (en) | 2017-08-23 | 2017-08-23 | Rubber modification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730542.8A CN107474347A (en) | 2017-08-23 | 2017-08-23 | Rubber modification method |
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| Publication Number | Publication Date |
|---|---|
| CN107474347A true CN107474347A (en) | 2017-12-15 |
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ID=60601465
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710730542.8A Withdrawn CN107474347A (en) | 2017-08-23 | 2017-08-23 | Rubber modification method |
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| Country | Link |
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| CN (1) | CN107474347A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168613A (en) * | 2006-10-25 | 2008-04-30 | 比亚迪股份有限公司 | Method for modifying ABS plastic |
| CN105482462A (en) * | 2015-12-14 | 2016-04-13 | 湖南工业大学 | High-temperature-resistant and low-smoke-zero-halogen cable material and preparing method |
| CN106281156A (en) * | 2016-08-25 | 2017-01-04 | 安徽大松树脂有限公司 | A kind of high-strength water-resistance modified adhesive |
| CN106928639A (en) * | 2015-12-30 | 2017-07-07 | 宁波福天新材料科技有限公司 | A kind of method of modifying of ABS plastic |
-
2017
- 2017-08-23 CN CN201710730542.8A patent/CN107474347A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168613A (en) * | 2006-10-25 | 2008-04-30 | 比亚迪股份有限公司 | Method for modifying ABS plastic |
| CN105482462A (en) * | 2015-12-14 | 2016-04-13 | 湖南工业大学 | High-temperature-resistant and low-smoke-zero-halogen cable material and preparing method |
| CN106928639A (en) * | 2015-12-30 | 2017-07-07 | 宁波福天新材料科技有限公司 | A kind of method of modifying of ABS plastic |
| CN106281156A (en) * | 2016-08-25 | 2017-01-04 | 安徽大松树脂有限公司 | A kind of high-strength water-resistance modified adhesive |
Non-Patent Citations (1)
| Title |
|---|
| 工程材料力学行为——变形、断裂与疲劳的工程方法: "《工程材料力学行为——变形、断裂与疲劳的工程方法》", 31 May 2016, 机械工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20171215 |