CN105175836A - Heat-resisting rubber material composition and preparation method of heat-resisting rubber - Google Patents
Heat-resisting rubber material composition and preparation method of heat-resisting rubber Download PDFInfo
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- CN105175836A CN105175836A CN201510642303.8A CN201510642303A CN105175836A CN 105175836 A CN105175836 A CN 105175836A CN 201510642303 A CN201510642303 A CN 201510642303A CN 105175836 A CN105175836 A CN 105175836A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 56
- 239000005060 rubber Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 28
- 239000004288 Sodium dehydroacetate Substances 0.000 claims abstract description 28
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000292 calcium oxide Substances 0.000 claims abstract description 28
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 28
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 28
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 28
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 28
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 28
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 229940079839 sodium dehydroacetate Drugs 0.000 claims abstract description 28
- 235000019259 sodium dehydroacetate Nutrition 0.000 claims abstract description 28
- DSOWAKKSGYUMTF-GZOLSCHFSA-M sodium;(1e)-1-(6-methyl-2,4-dioxopyran-3-ylidene)ethanolate Chemical compound [Na+].C\C([O-])=C1/C(=O)OC(C)=CC1=O DSOWAKKSGYUMTF-GZOLSCHFSA-M 0.000 claims abstract description 28
- 239000011787 zinc oxide Substances 0.000 claims abstract description 28
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229920001084 poly(chloroprene) Polymers 0.000 claims abstract description 24
- 239000011593 sulfur Substances 0.000 claims description 25
- 229910052717 sulfur Inorganic materials 0.000 claims description 25
- 238000003723 Smelting Methods 0.000 claims description 12
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000003712 anti-aging effect Effects 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010309 melting process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000005864 Sulphur Substances 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses heat-resisting rubber material composition and a preparation method of the heat-resisting rubber. The composition comprises chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulphur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate, wherein in terms of 100 parts by weight of the chloroprene rubber, the composition comprises 10-30 parts of the butadiene rubber, 1-10 parts of the polyvinyl chloride resin, 0.1-5 parts of the sulphur, 1-5 parts of calcium oxide, 1-10 parts of zinc oxide, 1-10 parts of magnesium carbonate and 1-3 parts of sodium dehydroacetate. According to the technical scheme, the rubber prepared with the method has better heat resistance during actual using, so that the usage range of the rubber is greatly enlarged.
Description
Technical Field
The invention relates to the field of production and preparation of rubber materials, in particular to a heat-resistant rubber material composition and a preparation method of heat-resistant rubber.
Background
In the process of daily production and life, rubber is popular with people due to good service performance and high cost performance, so that the rubber is applied to a plurality of production and life devices, but the rubber is poor in heat resistance in the use process, so that the rubber is easy to deform and the like when being applied to an environment with high temperature, and the use of the rubber is influenced.
Therefore, the present invention provides a heat-resistant rubber material composition having good heat resistance and greatly improving the application range thereof, and a preparation method of the heat-resistant rubber.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the problem that the rubber in the prior art is poor in heat resistance in the using process, so that the rubber is easy to deform and the like when being applied to a high-temperature environment, and the use of the rubber is influenced, thereby providing a heat-resistant rubber material composition with good heat resistance and a preparation method of the heat-resistant rubber, which greatly improves the use range of the heat-resistant rubber.
In order to achieve the above object, the present invention provides a heat-resistant rubber material composition, wherein the composition comprises chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate; wherein,
relative to 100 parts by weight of the chloroprene rubber, the content of the butadiene rubber is 10-30 parts by weight, the content of the polyvinyl chloride resin is 1-10 parts by weight, the content of the sulfur is 0.1-5 parts by weight, the content of the calcium oxide is 1-5 parts by weight, the content of the zinc oxide is 1-10 parts by weight, the content of the magnesium carbonate is 1-10 parts by weight, and the content of the sodium dehydroacetate is 1-3 parts by weight.
The invention also provides a preparation method of the heat-resistant rubber, wherein the preparation method comprises the following steps: mixing chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate, and then smelting to obtain heat-resistant rubber; wherein,
relative to 100 parts by weight of the chloroprene rubber, the usage amount of the butadiene rubber is 10-30 parts by weight, the usage amount of the polyvinyl chloride resin is 1-10 parts by weight, the usage amount of the sulfur is 0.1-5 parts by weight, the usage amount of the calcium oxide is 1-5 parts by weight, the usage amount of the zinc oxide is 1-10 parts by weight, the usage amount of the magnesium carbonate is 1-10 parts by weight, and the usage amount of the sodium dehydroacetate is 1-3 parts by weight.
According to the technical scheme, chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate are mixed according to a certain proportion to prepare the heat-resistant rubber material, and then the heat-resistant rubber material is smelted to prepare the heat-resistant rubber, so that the rubber prepared by the method has better heat resistance in actual use, and the application range of the rubber is further greatly improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a heat-resistant rubber material composition, wherein the composition comprises chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate; wherein,
relative to 100 parts by weight of the chloroprene rubber, the content of the butadiene rubber is 10-30 parts by weight, the content of the polyvinyl chloride resin is 1-10 parts by weight, the content of the sulfur is 0.1-5 parts by weight, the content of the calcium oxide is 1-5 parts by weight, the content of the zinc oxide is 1-10 parts by weight, the content of the magnesium carbonate is 1-10 parts by weight, and the content of the sodium dehydroacetate is 1-3 parts by weight.
According to the design, chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate are mixed according to a certain proportion to prepare the heat-resistant rubber material, and then smelting is carried out to prepare the heat-resistant rubber, so that the rubber prepared by the method has better heat resistance in actual use, and the application range of the rubber is greatly improved.
In order to provide the heat-resistant rubber with better heat resistance, in a preferred embodiment of the invention, the content of the butadiene rubber is 15-25 parts by weight, the content of the polyvinyl chloride resin is 3-7 parts by weight, the content of the sulfur is 1-3 parts by weight, the content of the calcium oxide is 2-4 parts by weight, the content of the zinc oxide is 3-7 parts by weight, the content of the magnesium carbonate is 3-7 parts by weight, and the content of the sodium dehydroacetate is 1-2 parts by weight, relative to 100 parts by weight of the chloroprene rubber.
In order to provide the heat-resistant rubber obtained with better use properties, in a more preferred embodiment of the invention, the composition may further comprise a processing aid.
The processing aid may be of the type conventionally used in the art, for example, in a preferred embodiment of the present invention, the processing aid may be selected from one or more of an anti-uv agent, an antioxidant, an anti-aging agent and an accelerator.
The invention also provides a preparation method of the heat-resistant rubber, wherein the preparation method comprises the following steps: mixing chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate, and then smelting to obtain heat-resistant rubber; wherein,
relative to 100 parts by weight of the chloroprene rubber, the usage amount of the butadiene rubber is 10-30 parts by weight, the usage amount of the polyvinyl chloride resin is 1-10 parts by weight, the usage amount of the sulfur is 0.1-5 parts by weight, the usage amount of the calcium oxide is 1-5 parts by weight, the usage amount of the zinc oxide is 1-10 parts by weight, the usage amount of the magnesium carbonate is 1-10 parts by weight, and the usage amount of the sodium dehydroacetate is 1-3 parts by weight.
In order to obtain a heat-resistant rubber having a better heat resistance, in a preferred embodiment of the present invention, the amount of the cis-butadiene rubber is 15 to 25 parts by weight, the amount of the polyvinyl chloride resin is 3 to 7 parts by weight, the amount of the sulfur is 1 to 3 parts by weight, the amount of the calcium oxide is 2 to 4 parts by weight, the amount of the zinc oxide is 3 to 7 parts by weight, the amount of the magnesium carbonate is 3 to 7 parts by weight, and the amount of the sodium dehydroacetate is 1 to 2 parts by weight, based on 100 parts by weight of the chloroprene rubber.
In a more preferred embodiment of the present invention, the preparation method may further include adding a processing aid to perform melting in order to provide the heat-resistant rubber having better use properties.
The processing aid may be of the type conventionally used in the art, for example, in a more preferred embodiment of the present invention, the processing aid may be selected from one or more of an anti-uv agent, an antioxidant, an anti-aging agent and an accelerator.
The conditions of the smelting process are not limited, and of course, in order to achieve better smelting effect and more energy saving, in a preferred embodiment of the invention, the smelting temperature of the smelting process can be selected to be 200 ℃ or 500 ℃.
The present invention will be described in detail below by way of examples. In the following examples, the chloroprene rubber, the butadiene rubber, the polyvinyl chloride resin, the sulfur, the calcium oxide, the zinc oxide, the magnesium carbonate, and the sodium dehydroacetate were conventional commercially available products.
Example 1
100g of chloroprene rubber, 15g of butadiene rubber, 3g of polyvinyl chloride resin, 1g of sulfur, 2g of calcium oxide, 3g of zinc oxide, 3g of magnesium carbonate and 1g of sodium dehydroacetate are mixed and then placed at the temperature of 200 ℃ for smelting to prepare the heat-resistant rubber A1.
Example 2
100g of chloroprene rubber, 25g of butadiene rubber, 7g of polyvinyl chloride resin, 3g of sulfur, 4g of calcium oxide, 7g of zinc oxide, 7g of magnesium carbonate and 2g of sodium dehydroacetate are mixed and then placed at the temperature of 500 ℃ for smelting to prepare the heat-resistant rubber A2.
Example 3
100g of chloroprene rubber, 20g of butadiene rubber, 5g of polyvinyl chloride resin, 2g of sulfur, 3g of calcium oxide, 5g of zinc oxide, 5g of magnesium carbonate and 1g of sodium dehydroacetate are mixed and then placed at the temperature of 300 ℃ for smelting to prepare the heat-resistant rubber A3.
Example 4
The preparation was carried out in accordance with the preparation method of example 1 except that the amount of butadiene rubber was 10g, the amount of polyvinyl chloride resin was 1g, the amount of sulfur was 0.1g, the amount of calcium oxide was 1g, the amount of zinc oxide was 1g, the amount of magnesium carbonate was 1g, and the amount of sodium dehydroacetate was 1g, to obtain heat-resistant rubber A4.
Example 5
The preparation was carried out in accordance with the preparation method of example 2 except that the amount of butadiene rubber was 30g, the amount of polyvinyl chloride resin was 10g, the amount of sulfur was 5g, the amount of calcium oxide was 5g, the amount of zinc oxide was 10g, the amount of magnesium carbonate was 10g, and the amount of sodium dehydroacetate was 3g, to obtain heat-resistant rubber A5.
Comparative example 1
The preparation was carried out in accordance with the preparation method of example 3 except that the amount of cis-butadiene rubber was 5g, the amount of polyvinyl chloride resin was 0.5g, the amount of calcium oxide was 0.5g, the amount of zinc oxide was 0.5g, the amount of magnesium carbonate was 0.5g, and the amount of sodium dehydroacetate was 0.5g, to obtain rubber D1.
Comparative example 2
The preparation was carried out in accordance with the preparation method of example 3 except that the amount of cis-butadiene rubber was 50g, the amount of polyvinyl chloride resin was 20g, the amount of sulfur was 10g, the amount of calcium oxide was 10g, the amount of zinc oxide was 20g, the amount of magnesium carbonate was 20g, and the amount of sodium dehydroacetate was 5g, to obtain rubber D2.
Test example
The above-prepared a1-a5, D1 and D2 were left to stand at 70 ℃ for 10 days, and then their elongation at break was examined, and the results are shown in table 1.
TABLE 1
| Numbering | Elongation at Break (%) |
| A1 | 260 |
| A2 | 230 |
| A3 | 240 |
| A4 | 160 |
| A5 | 150 |
| D1 | 35 |
| D2 | 75 |
As can be seen from Table 1, the heat-resistant rubber prepared within the scope of the present invention still has good elongation at break after being left at high temperature, but the rubber prepared outside the scope of the present invention does not have such good heat-resistant property, and meanwhile, the heat-resistant rubber prepared within the preferred scope of the present invention has higher elongation at break and better heat-resistant property.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. A heat-resistant rubber material composition, which is characterized by comprising chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate; wherein,
relative to 100 parts by weight of the chloroprene rubber, the content of the butadiene rubber is 10-30 parts by weight, the content of the polyvinyl chloride resin is 1-10 parts by weight, the content of the sulfur is 0.1-5 parts by weight, the content of the calcium oxide is 1-5 parts by weight, the content of the zinc oxide is 1-10 parts by weight, the content of the magnesium carbonate is 1-10 parts by weight, and the content of the sodium dehydroacetate is 1-3 parts by weight.
2. The composition according to claim 1, wherein the cis-butadiene rubber is contained in an amount of 15 to 25 parts by weight, the polyvinyl chloride resin is contained in an amount of 3 to 7 parts by weight, the sulfur is contained in an amount of 1 to 3 parts by weight, the calcium oxide is contained in an amount of 2 to 4 parts by weight, the zinc oxide is contained in an amount of 3 to 7 parts by weight, the magnesium carbonate is contained in an amount of 3 to 7 parts by weight, and the sodium dehydroacetate is contained in an amount of 1 to 2 parts by weight, relative to 100 parts by weight of the chloroprene rubber.
3. The composition of claim 1 or 2, wherein the composition further comprises a processing aid.
4. The composition of claim 3, wherein the processing aid is selected from one or more of an anti-ultraviolet agent, an antioxidant, an anti-aging agent, and an accelerator.
5. A preparation method of heat-resistant rubber is characterized by comprising the following steps: mixing chloroprene rubber, butadiene rubber, polyvinyl chloride resin, sulfur, calcium oxide, zinc oxide, magnesium carbonate and sodium dehydroacetate, and then smelting to obtain heat-resistant rubber; wherein,
relative to 100 parts by weight of the chloroprene rubber, the usage amount of the butadiene rubber is 10-30 parts by weight, the usage amount of the polyvinyl chloride resin is 1-10 parts by weight, the usage amount of the sulfur is 0.1-5 parts by weight, the usage amount of the calcium oxide is 1-5 parts by weight, the usage amount of the zinc oxide is 1-10 parts by weight, the usage amount of the magnesium carbonate is 1-10 parts by weight, and the usage amount of the sodium dehydroacetate is 1-3 parts by weight.
6. The production method according to claim 5, wherein the cis-butadiene rubber is used in an amount of 15 to 25 parts by weight, the polyvinyl chloride resin is used in an amount of 3 to 7 parts by weight, the sulfur is used in an amount of 1 to 3 parts by weight, the calcium oxide is used in an amount of 2 to 4 parts by weight, the zinc oxide is used in an amount of 3 to 7 parts by weight, the magnesium carbonate is used in an amount of 3 to 7 parts by weight, and the sodium dehydroacetate is used in an amount of 1 to 2 parts by weight, relative to 100 parts by weight of the chloroprene rubber.
7. The production method according to claim 5 or 6, wherein the production method further comprises adding a processing aid to perform smelting.
8. The production method according to claim 7, wherein the processing aid is selected from one or more of an anti-ultraviolet agent, an antioxidant, an anti-aging agent, and an accelerator.
9. The preparation method according to claim 5 or 6, wherein the melting temperature of the melting process is 200-500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642303.8A CN105175836A (en) | 2015-09-30 | 2015-09-30 | Heat-resisting rubber material composition and preparation method of heat-resisting rubber |
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| CN201510642303.8A CN105175836A (en) | 2015-09-30 | 2015-09-30 | Heat-resisting rubber material composition and preparation method of heat-resisting rubber |
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| CN105175836A true CN105175836A (en) | 2015-12-23 |
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| CN201510642303.8A Pending CN105175836A (en) | 2015-09-30 | 2015-09-30 | Heat-resisting rubber material composition and preparation method of heat-resisting rubber |
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Application publication date: 20151223 |