CN104761759A - Preparation method of nano zinc oxide modified rubber powder composite material - Google Patents
Preparation method of nano zinc oxide modified rubber powder composite material Download PDFInfo
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- CN104761759A CN104761759A CN201510139520.5A CN201510139520A CN104761759A CN 104761759 A CN104761759 A CN 104761759A CN 201510139520 A CN201510139520 A CN 201510139520A CN 104761759 A CN104761759 A CN 104761759A
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- zinc oxide
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- 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
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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
- C08K2201/011—Nanostructured additives
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of a nano zinc oxide modified rubber powder composite material and relates to the technical field of preparation of rubber. The preparation method comprises three process steps including ultrasonic dispersion, ball milling and mixing vulcanization. In the method disclosed by the invention, the particle size of most zinc oxide particles on the surface of the modified rubber powder prepared by an ultrasonic dispersion mixing method is relatively small, and the particle size distribution is relatively uniform; besides, an appropriate amount of a coupling agent is added during the ultrasonic dispersion mixing to ensure that the coupling agent covers the surface of nano zinc oxide, so that re-agglomeration of nano zinc oxide is stopped, the surface of nano zinc oxide can be changed from polar to non-polar, the compatibility between nano zinc oxide and a rubber matrix is improved, the dispersity of nano zinc oxide is improved, the nano zinc oxide obtains relatively high tensile strength, and the breaking elongation rate and the wear resistance of nano zinc oxide are greatly improved.
Description
Technical field
The present invention relates to technical field of rubber preparation, be specifically related to a kind of preparation method of nano zinc oxide modified rubber powder matrix material.
Background technology
The special effects had due to nanoparticle and the strong interface between nanoparticle and polymeric matrix interact, and make the performances such as the mechanics of polymer nanocomposites, calorifics all be better than conventional polymer matrix material.Utilizing junked tire to produce rubber powder is a kind of good method solving environmental pollution and effectively utilize rubber sources.But in rubber item, a large amount of rubber powder that adds can significantly reduce its performance, and this becomes the bottleneck of rubber powder application.Carry out surface modification to rubber powder can improve it and mix performance, the surface active method of modifying of current rubber powder mainly contains the methods such as mechanico-chemical reaction modification, polymer activation process, regenerative sulfur binding, Graft Method or inierpeneirating network structure, gas modification, sulfonation.In addition, Stark adopts polymeric coating method to carry out surface modification to rubber powder, and in tyre stock, have good application. and therefore, nano modification has very important effect as the overall performance improving rubber powder matrix material.
Summary of the invention
Problem to be solved by this invention is to provide the preparation method of the rubber rubber powder matrix material of a kind of tensile property, tear resistance and wear hardness excellence.
To achieve these goals, the technical scheme that the present invention takes for: the preparation method of a kind of nano zinc oxide modified rubber powder matrix material provided, comprises the steps:
(1) ultrasonic disperse: first nano zine oxide is placed in solvent ultrasonic disperse 15-20min, then adds coupling agent ultrasonic disperse 15-20min, finally adds rubber powder and ultrasonic disperse 15-20min;
(2) ball-milling processing: the mixture obtained in step (1) is put into ball milling 30-45min in ball mill, then drying process 20-30min can obtain modified glue powder;
(3) mixing sulfuration: modified glue powder and natural rubber and Synergist S-421 95 are placed in and mill are carried out mixing, make required composite sample after sulfuration.
Preferably, in described step (3), Synergist S-421 95 is specially accelerant NOBS, sulphur and stearic acid.
Preferably, the add-on of described natural rubber, rubber powder, nano zine oxide and coupling agent is respectively 100Phr, 50Phr, 7.5 Phr and 2.5 Phr.
Preferably, described accelerant NOBS, sulphur and stearic add-on are respectively 0.5Phr, 1.5 Phr and 1.5 Phr.
Adopt technical scheme of the present invention, on the surface of the modified glue powder prepared in ultrasonic disperse hybrid system, the particle diameter of most of zinc oxide particles is less, and size distribution is more even, while ultrasonic disperse mixing, adding suitable coupling agent in addition can make coupling agent be coated on the surface of nano zine oxide, nano zine oxide is not only prevented again to reunite, and it is nonpolar that the surface of nano zine oxide can be made to be become from polarity, improve the consistency of it and rubber matrix, also the dispersiveness of nano zine oxide is made to improve, obtain higher tensile strength, and elongation at break and wear resistance are obtained for and significantly improve.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
embodiment 1:
A preparation method for nano zinc oxide modified rubber powder matrix material, comprises the steps:
(1) ultrasonic disperse: first nano zine oxide is placed in solvent ultrasonic disperse 16min, then adds coupling agent ultrasonic disperse 17min, finally adds rubber powder and ultrasonic disperse 16min;
(2) ball-milling processing: the mixture obtained in step (1) is put into ball milling 35min in ball mill, then drying process 23min can obtain modified glue powder;
(3) mixing sulfuration: modified glue powder and natural rubber and Synergist S-421 95 are placed in and mill are carried out mixing, make required composite sample after sulfuration.
In the present embodiment, described natural rubber, rubber powder, nano zine oxide, coupling agent, accelerant NOBS, sulphur and stearic add-on are respectively 100Phr, 50Phr, 7.5 Phr, 2.5 Phr, 0.5Phr, 1.5 Phr and 1.5 Phr.
Based on above-mentioned, in the present invention, on the surface of the modified glue powder prepared in ultrasonic disperse hybrid system, the particle diameter of most of zinc oxide particles is less, and size distribution is more even, while ultrasonic disperse mixing, adding suitable coupling agent in addition can make coupling agent be coated on the surface of nano zine oxide, nano zine oxide is not only prevented again to reunite, and it is nonpolar that the surface of nano zine oxide can be made to be become from polarity, improve the consistency of it and rubber matrix, also the dispersiveness of nano zine oxide is made to improve, obtain higher tensile strength, and elongation at break and wear resistance are obtained for and significantly improve.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (4)
1. a preparation method for nano zinc oxide modified rubber powder matrix material, is characterized in that: comprise the steps:
(1) ultrasonic disperse: first nano zine oxide is placed in solvent ultrasonic disperse 15-20min, then adds coupling agent ultrasonic disperse 15-20min, finally adds rubber powder and ultrasonic disperse 15-20min;
(2) ball-milling processing: the mixture obtained in step (1) is put into ball milling 30-45min in ball mill, then drying process 20-30min can obtain modified glue powder;
(3) mixing sulfuration: modified glue powder and natural rubber and Synergist S-421 95 are placed in and mill are carried out mixing, make required composite sample after sulfuration.
2. the preparation method of a kind of nano zinc oxide modified rubber powder matrix material according to claim 1, is characterized in that: in described step (3), Synergist S-421 95 is specially accelerant NOBS, sulphur and stearic acid.
3. the preparation method of a kind of nano zinc oxide modified rubber powder matrix material according to claim 2, is characterized in that: the add-on of described natural rubber, rubber powder, nano zine oxide and coupling agent is respectively 100Phr, 50Phr, 7.5 Phr and 2.5 Phr.
4. the preparation method of a kind of nano zinc oxide modified rubber powder matrix material according to claim 2, is characterized in that: described accelerant NOBS, sulphur and stearic add-on are respectively 0.5Phr, 1.5 Phr and 1.5 Phr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139520.5A CN104761759A (en) | 2015-03-29 | 2015-03-29 | Preparation method of nano zinc oxide modified rubber powder composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510139520.5A CN104761759A (en) | 2015-03-29 | 2015-03-29 | Preparation method of nano zinc oxide modified rubber powder composite material |
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| CN104761759A true CN104761759A (en) | 2015-07-08 |
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| CN201510139520.5A Pending CN104761759A (en) | 2015-03-29 | 2015-03-29 | Preparation method of nano zinc oxide modified rubber powder composite material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057465A (en) * | 2022-08-04 | 2022-09-16 | 安徽进化硅纳米材料科技有限公司 | Nano zinc oxide composite material with core-shell structure and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511889A (en) * | 2002-12-27 | 2004-07-14 | 北京服装学院 | Surface modified nano zinc oxide water dispersion and its preparing method and use |
| CN102924829A (en) * | 2012-11-08 | 2013-02-13 | 沈阳化工大学 | Zinc oxide pre-dispersion master colloidal particle and preparation method thereof |
-
2015
- 2015-03-29 CN CN201510139520.5A patent/CN104761759A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511889A (en) * | 2002-12-27 | 2004-07-14 | 北京服装学院 | Surface modified nano zinc oxide water dispersion and its preparing method and use |
| CN102924829A (en) * | 2012-11-08 | 2013-02-13 | 沈阳化工大学 | Zinc oxide pre-dispersion master colloidal particle and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王韶晖等: "纳米氧化锌改性胶粉/天然橡胶复合材料的制备及性能", 《高分子材料科学与工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057465A (en) * | 2022-08-04 | 2022-09-16 | 安徽进化硅纳米材料科技有限公司 | Nano zinc oxide composite material with core-shell structure and preparation method and application thereof |
| CN115057465B (en) * | 2022-08-04 | 2024-06-04 | 安徽进化硅纳米材料科技有限公司 | Nano zinc oxide composite material with core-shell structure and preparation method and application thereof |
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Application publication date: 20150708 |