CN112745541A - Rubber particles with high bonding strength for runway - Google Patents
Rubber particles with high bonding strength for runway Download PDFInfo
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- CN112745541A CN112745541A CN202110051383.5A CN202110051383A CN112745541A CN 112745541 A CN112745541 A CN 112745541A CN 202110051383 A CN202110051383 A CN 202110051383A CN 112745541 A CN112745541 A CN 112745541A
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- runway
- tpu
- strength
- bonding strength
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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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- 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
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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)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a high-bonding-strength rubber particle for a runway, which comprises the following raw materials in parts by weight: 8-11 parts of TPU, 12-17 parts of NBR, 20-25 parts of DOTP, 3-5 parts of epoxidized soybean oil, 60-65 parts of light calcium carbonate, 0.5-1 part of titanium dioxide, 0.5-1 part of white carbon black, 0.5-1 part of processing aid and 0.16-0.17 part of cross-linking agent; the high-bonding-strength rubber particles for the runway have high bonding strength with PU glue, meet the requirements of GB36246-2018 on the physical properties of the runway surface layer, and have low processing difficulty, more stable weather resistance, wear resistance, cold resistance, hydrolysis resistance, aging resistance and the like.
Description
Technical Field
The invention relates to the technical field of runway materials, in particular to rubber particles with high bonding strength for runways.
Background
In the construction and construction of the athletic field runway at present, the commonly used rubber particles are Ethylene Propylene Diene Monomer (EPDM) rubber particles, the glue adopts Polyurethane (PU) glue, the glue is strong-polarity, but the EPDM is non-polar rubber, and the solubility parameter is far different from that of the PU glue, so that when the EPDM particles and the PU glue are mixed and bonded, higher bonding strength is difficult to obtain, the cured field cannot meet the requirement of GB36246-2018 on the physical performance of the runway surface layer.
GB3246-2018 requires that the tensile strength of the permeable runway is more than or equal to 0.4mpa, the elongation at break is more than or equal to 40%, and the performance requirement is difficult to achieve in the actual construction of EDPM particles added with PU glue at present. The market urgently needs a runway rubber particle with high bonding strength with PU glue.
Disclosure of Invention
In order to overcome the existing problems, the invention provides rubber particles for a runway, which have high bonding strength with PU glue.
The technical scheme of the invention is as follows: the rubber particles with high bonding strength for the runway comprise the following raw materials in parts by weight: 8-11 parts of TPU, 12-17 parts of NBR, 20-25 parts of DOTP, 3-5 parts of epoxidized soybean oil, 60-65 parts of light calcium carbonate, 0.5-1 part of titanium dioxide, 0.5-1 part of white carbon black, 0.5-1 part of processing aid and 0.16-0.17 part of cross-linking agent.
The TPU (thermoplastic polyurethane elastomer rubber) adopts polyether TPU, the hardness range of the TPU is 60-75A, and the TPU has the advantages of high wear resistance, high safety, good extrusion stability, low processing difficulty, hydrolysis resistance, aging resistance and the like.
The NBR (nitrile butadiene rubber) has the acrylonitrile mass content of 31-35%, and has good oil resistance, cold resistance, water resistance and excellent bonding strength; the DOTP serves as a primary plasticizer of NBR.
The epoxidized soybean oil is used as an auxiliary plasticizer for improving the overall cold resistance of the rubber particles.
The light calcium carbonate is selected to be 1250 meshes and used as a filling agent.
The titanium dioxide and the white carbon black are used for improving the weather resistance and the physical strength of the rubber product.
The crosslinking agent is a peroxide crosslinking agent, and DCP or BIPB is adopted to ensure that a network interpenetrating structure is formed between molecules of TPU and NBR, so that the material has better and more stable performances of weather resistance, wear resistance and the like.
The processing aid is an antioxidant and/or an ultraviolet absorbent, the antioxidant can adopt 1010 or 168, and the ultraviolet absorbent can adopt UV 531.
Specifically, the rubber particles for the runway with high bonding strength comprise the following components in parts by weight: 8 parts of TPU, 15 parts of NBR, 25 parts of DOTP, 5 parts of epoxidized soybean oil, 60 parts of light calcium carbonate, 0.5 part of titanium dioxide, 1 part of white carbon black, 0.5 part of processing aid and 0.161 part of cross-linking agent.
The rubber particles for the runway with high bonding strength are prepared into a plastic runway particle layer with PU glue according to the ratio of (glue: particles) to 1: 6-8.
The invention has the beneficial effects that: in the formula of the invention, the polarity and solubility parameters of TPU (thermoplastic polyurethane elastomer) and NBR are matched with PU glue, the solubility parameter is a physical constant for measuring the intermiscibility of liquid materials (including rubber, because the rubber is in a liquid state under processing conditions), the more similar the solubility parameters of two high polymer materials are, the better the blending effect, the EDPM solubility parameter is 7.95, the NBR solubility parameter is 18-19, the TPU solubility parameter is 20.5, the PU solubility parameter is 20.5, therefore, the rubber particles of the invention have very good bonding performance with PU, and meet the requirements of GB36246-2018 on the physical performance of the runway surface layer, the invention adopts two rubbers of TPU and NBR, thereby greatly improving the bonding strength between the rubber particles and the PU, meanwhile, the processing difficulty is not increased, but the processing difficulty is reduced, the production efficiency is improved, and the method has economical and practical properties; secondly, the rubber particles for the runway, which are obtained by the formula, have the advantages of low processing difficulty, excellent weather resistance, cold resistance, hydrolysis and aging resistance, better wear resistance, low processing cost, long service life and the like.
Detailed Description
The invention will be further illustrated with reference to specific examples.
The rubber particles with high bonding strength for the runway comprise the following raw materials in parts by weight:
wherein, the processing aid of the embodiment 1-6 adopts an antioxidant 1010, and the cross-linking agent adopts DCP.
The following rubber articles were obtained by extrusion molding in examples 1 to 6 in combination with experimental data on the principle of efficacy of the supporting formulation, and the physical strength was measured by a standard tensile machine as follows:
| examples | Tensile Strength mpa | Elongation at break% | Hardness (Shao's A) |
| 1 | 3.5 | 260 | 78 |
| 2 | 3.2 | 245 | 76 |
| 3 | 3.1 | 300 | 75 |
| 4 | 2.8 | 315 | 73 |
| 5 | 2.8 | 310 | 71 |
| 6 | 2.7 | 350 | 68 |
The physical strength of the rubber product obtained in example 1 was the best as shown in the above table.
The rubber product of example 1 is crushed into 1-4mm particles by a special rubber crusher, and is made into a gas-permeable runway particle layer sample block according to (glue: particles) 1:6, 1:7 and 1:8 with PU glue, and compared with an EPDM particle runway sample block, the following results are obtained:
the detection is carried out according to the standard requirements in GB 36246-2018.
The comparison shows that the physical strength of the sample block of the breathable runway particle layer prepared in the example 1 is stronger than that of the sample block of the EPDM particle runway in the ratio of a plurality of glue to particles, wherein the strength is highest at 1:6, and the ratio of 1: the best economy is achieved when 8 is used.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (9)
1. The rubber particles with high bonding strength for the runway are characterized by comprising the following raw materials in parts by weight: 8-11 parts of TPU, 12-17 parts of NBR, 20-25 parts of DOTP, 3-5 parts of epoxidized soybean oil, 60-65 parts of light calcium carbonate, 0.5-1 part of titanium dioxide, 0.5-1 part of white carbon black, 0.5-1 part of processing aid and 0.16-0.17 part of cross-linking agent.
2. A track rubber granule with high cohesive strength according to claim 1, characterized in that said TPU is a polyether TPU.
3. A track rubber granule with high bond strength as claimed in claim 1, wherein the hardness of said polyether TPU is in the range of 60-75A.
4. A track rubber particle with high adhesive strength as claimed in claim 1, wherein the mass content of acrylonitrile in the NBR is 31% to 35%.
5. A track rubber granule with high bonding strength according to claim 1, wherein the light calcium is 1250 mesh.
6. A track rubber granule with high bond strength as claimed in claim 1, wherein said cross-linking agent is peroxide cross-linking agent, DCP or BIPB is used.
7. The track rubber granule with high adhesive strength according to claim 1, wherein the processing aid is an antioxidant and/or an ultraviolet absorber.
8. A track rubber granule with high bonding strength as claimed in claim 1, wherein the formulation comprises the following components in parts by weight: 8 parts of TPU, 15 parts of NBR, 25 parts of DOTP, 5 parts of epoxidized soybean oil, 60 parts of light calcium carbonate, 0.5 part of titanium dioxide, 1 part of white carbon black, 0.5 part of processing aid and 0.161 part of cross-linking agent.
9. A plastic track particle layer made of the rubber particles for tracks with high adhesive strength as claimed in claim 1, wherein the PU glue and the particles are prepared in a ratio of 1: 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110051383.5A CN112745541A (en) | 2021-01-14 | 2021-01-14 | Rubber particles with high bonding strength for runway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110051383.5A CN112745541A (en) | 2021-01-14 | 2021-01-14 | Rubber particles with high bonding strength for runway |
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| CN112745541A true CN112745541A (en) | 2021-05-04 |
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| CN202110051383.5A Pending CN112745541A (en) | 2021-01-14 | 2021-01-14 | Rubber particles with high bonding strength for runway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292841A (en) * | 2021-05-14 | 2021-08-24 | 广州市众智体育科技有限公司 | Base rubber cushion layer with good matching degree with polyurethane glue |
Citations (5)
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|---|---|---|---|---|
| CN106751735A (en) * | 2017-01-17 | 2017-05-31 | 广东工业大学 | A kind of adhesive for polyurethane and vapor-permeable type runway skin-material and preparation method thereof |
| CN109651827A (en) * | 2018-12-21 | 2019-04-19 | 南京工程学院 | Prefabricated plastic cement race track of full recoverable environmental protection type thermoplasticity and preparation method thereof |
| CN110628140A (en) * | 2019-10-15 | 2019-12-31 | 福建宸琦新材料科技有限公司 | Wear-resistant runway granular material and preparation method thereof |
| CN110643169A (en) * | 2019-11-13 | 2020-01-03 | 湖南优冠体育材料有限公司 | Environment-friendly odor-free prefabricated plastic track coiled material and preparation method thereof |
| CN111925602A (en) * | 2020-07-21 | 2020-11-13 | 苏州大乘环保新材有限公司 | MPV modified runway particle and preparation method thereof |
-
2021
- 2021-01-14 CN CN202110051383.5A patent/CN112745541A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751735A (en) * | 2017-01-17 | 2017-05-31 | 广东工业大学 | A kind of adhesive for polyurethane and vapor-permeable type runway skin-material and preparation method thereof |
| CN109651827A (en) * | 2018-12-21 | 2019-04-19 | 南京工程学院 | Prefabricated plastic cement race track of full recoverable environmental protection type thermoplasticity and preparation method thereof |
| CN110628140A (en) * | 2019-10-15 | 2019-12-31 | 福建宸琦新材料科技有限公司 | Wear-resistant runway granular material and preparation method thereof |
| CN110643169A (en) * | 2019-11-13 | 2020-01-03 | 湖南优冠体育材料有限公司 | Environment-friendly odor-free prefabricated plastic track coiled material and preparation method thereof |
| CN111925602A (en) * | 2020-07-21 | 2020-11-13 | 苏州大乘环保新材有限公司 | MPV modified runway particle and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 辛浩波: "《塑料合金及塑像共混改性：配方·工艺·性能·应用技术》", 31 May 2000, 中国轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292841A (en) * | 2021-05-14 | 2021-08-24 | 广州市众智体育科技有限公司 | Base rubber cushion layer with good matching degree with polyurethane glue |
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Application publication date: 20210504 |