CN113956578A - EP rubber compound for high-temperature-resistant low-pressure variable-plate heat exchanger and preparation method thereof - Google Patents
EP rubber compound for high-temperature-resistant low-pressure variable-plate heat exchanger and preparation method thereof Download PDFInfo
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- CN113956578A CN113956578A CN202111354764.7A CN202111354764A CN113956578A CN 113956578 A CN113956578 A CN 113956578A CN 202111354764 A CN202111354764 A CN 202111354764A CN 113956578 A CN113956578 A CN 113956578A
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- Prior art keywords
- heat exchanger
- plate heat
- percent
- temperature
- rubber compound
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 65
- 150000001875 compounds Chemical class 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 238000013329 compounding Methods 0.000 claims abstract description 19
- 238000004073 vulcanization Methods 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims description 12
- 239000004902 Softening Agent Substances 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 8
- 229940126062 Compound A Drugs 0.000 claims description 4
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger and a preparation method thereof, wherein the EP rubber compound for the high-temperature-resistant low-pressure variable-plate heat exchanger comprises the following components in percentage by weight: 40-50% of raw rubber, 30-40% of reinforcing filler, 4-10% of softener, 6-9% of compounding agent and 2-4% of vulcanization accelerator. The product of the invention has high temperature resistance, low pressure change and good processing performance.
Description
Technical Field
The invention relates to rubber, in particular to an EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger and a preparation method thereof.
Background
Ethylene propylene rubber (EPDM) has excellent heat resistance, ozone aging resistance, electric insulation performance and the like, and has been widely applied to the fields of automobiles, electric wires and cables, waterproof coiled materials, household appliances and the like. In recent years, due to the heat exchange characteristics of the plate heat exchanger, the plate heat exchanger is widely popularized and used in the industries of heating, heating ventilation and air conditioning, chemical engineering, machinery, metallurgy, steel, medicine and the like as popularization and application of energy conservation and emission reduction.
The service temperature of the plate heat exchanger is usually higher, so that the key is how to improve the service life of a sealing ring of the plate heat exchanger at high temperature, and an EP mixed rubber for a high-temperature and low-pressure resistant variable plate heat exchanger and a manufacturing method thereof are urgently needed to meet the use requirements of components such as the plate heat exchanger, a water tank and the like.
Disclosure of Invention
The invention provides an EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger and a manufacturing method thereof, and the EP rubber compound has the advantages of high-temperature resistance, low-pressure variation resistance, high product strength and easiness in processing.
In order to achieve the above object, in one aspect, the present invention provides the following technical solutions: an EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger comprises the following components in percentage by weight:
40 to 50 percent of raw rubber,
28 to 42% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
As a further improvement of the embodiment of the invention, the EP rubber compound for the high-elasticity wear-resistant printing rubber roller consists of the following components in percentage by weight:
45-50% of raw rubber,
30 to 40% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
As a further improvement of the embodiment of the invention, the EP rubber compound for the high-elasticity wear-resistant printing rubber roller consists of the following components in percentage by weight:
48 percent of raw rubber,
34 percent of reinforcing filler,
7 percent of softening agent,
8 percent of the compounding agent,
3 percent of vulcanization accelerator.
As a further improvement of the embodiment of the present invention, the crude rubber is EP 10660. EP10660 Mooney viscosity ML (1+8) @150 ℃ of 66 and ethylene content of 56 can impart higher temperature resistance and low pressure denaturation to the compound.
In a further improvement of the embodiment of the present invention, the reinforcing fillers N339 and N774 are combined in any ratio. Such a combination can impart good tensile strength and pressure-sensitive deformability to the compound.
As a further refinement of an embodiment of the present invention, the softening agents are P2280 and SR 517. P2280 viscosity at 40 ℃ 482mm2(ii)/s, can provide the rubber compound with good tensile strength; SR517 is a peroxide assistant crosslinking agent, which can reduce the Mooney viscosity of the rubber compound during mixing and improve the rubber compound degree during vulcanization.
As a further refinement of an embodiment of the present invention, the complexing agent is a combination of ZNOA and PEG 4000.
As a further improvement of an embodiment of the present invention, the vulcanization accelerator is a combination of 14S-FL and HX-45P.
The invention also provides a preparation method of the EP rubber compound for the high-temperature-resistant low-pressure variable-plate heat exchanger, which comprises the following preparation steps according to the performance requirement characteristics of the formula.
(1) Preparing materials, wherein according to the integral mixing characteristic of the formula, the preparation sequence is as follows:
sequentially comprises raw rubber, a compounding agent, a reinforcing filler, a softener and a vulcanization accelerator;
(2) firstly, mixing, namely putting raw rubber and a compounding agent into an internal mixer for mixing for 60 s; adding a softener, adding the reinforcing filler into an internal mixer, mixing for 80-100 s, cleaning an upper top plug, mixing for 50-70 s, discharging and discharging to obtain a rubber A for later use;
(3) and (3) mixing the rubber compound A for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and discharging the sheet for later use after sufficient mixing and dispersion.
The product produced by the invention has high temperature resistance, low pressure change and good processing performance. The most outstanding advantages are high temperature resistance, low pressure change and easy processing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger, which comprises the following components in percentage by weight:
40 to 50 percent of raw rubber,
28 to 42% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
Preferably, the EP rubber compound for the high-elasticity wear-resistant printing rubber roller comprises the following components in percentage by weight:
45-50% of raw rubber,
30 to 40% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
Particularly, the EP rubber compound for the high-elasticity wear-resistant printing rubber roller comprises the following components in percentage by weight:
48 percent of raw rubber,
34 percent of reinforcing filler,
7 percent of softening agent,
8 percent of the compounding agent,
3 percent of vulcanization accelerator.
In the present example, the crude rubber is EP 10660. EP10660 Mooney viscosity ML (1+8) @150 ℃ of 66 and ethylene content of 56 can impart higher temperature resistance and low pressure denaturation to the compound.
Wherein, the reinforcing fillers are a combination of two of N339 and N774. Such a combination can impart good tensile strength and pressure-sensitive deformability to the compound.
Preferably, the softening agent is P2280 and SR 517. P2280 has a viscosity of 482mm2/s at 40 ℃ and can provide the rubber with good tensile strength; SR517 is a peroxide assistant crosslinking agent, which can reduce the Mooney viscosity of the rubber compound during mixing and improve the rubber compound degree during vulcanization.
Wherein the compounding agent is a combination of ZNOA and PEG4000, and the vulcanization accelerator is a combination of 14S-FL and HX-45P.
The embodiment of the invention also provides a preparation method of the EP rubber compound for the high-temperature-resistant low-pressure variable-plate heat exchanger, and the preparation method comprises the following steps according to the performance requirement characteristics of a formula.
(1) Preparing materials, wherein according to the integral mixing characteristic of the formula, the preparation sequence is as follows:
sequentially comprises raw rubber, a compounding agent, a reinforcing filler, a softener and a vulcanization accelerator;
(2) firstly, mixing, namely putting raw rubber and a compounding agent into an internal mixer for mixing for 60 s; adding a softener, adding the reinforcing filler into an internal mixer, mixing for 80-100 s, cleaning an upper top plug, mixing for 50-70 s, discharging and discharging to obtain a rubber A for later use;
(3) and (3) mixing the rubber compound A for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and discharging the sheet for later use after sufficient mixing and dispersion.
Examples 1 to 4
The EP rubber compound for the high-temperature-resistant low-pressure variable plate heat exchanger is manufactured according to the following steps.
Preparing the glue, accurately weighing the raw materials in sequence according to the proportion in the table 1, and standing for later use.
Firstly, mixing, namely putting raw rubber and a compounding agent into an internal mixer for mixing for 60 s; firstly adding a softener, then adding the reinforcing filler into an internal mixer, mixing for 80-100 s, then cleaning an upper top plug, finally mixing for 50-70 s, then discharging and discharging a sheet to prepare A rubber compound for later use;
and (3) mixing the rubber compound A for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and discharging to finish the preparation after sufficient mixing and dispersion.
Table 1 shows the ratios of the components in examples 1 to 4 in terms of their mass fractions.
The composition ratios of examples 1 to 4 in Table 1
TABLE 2 mixing time for examples 1 to 4
Table 3 shows the performance parameters of an EP compound for a high temperature resistant low pressure variable plate heat exchanger made according to the examples 1 to 4.
TABLE 3 Performance parameters of the finished articles according to examples 1 to 4
As can be seen from Table 3, the EP rubber compound for the high temperature resistant low pressure variable plate heat exchanger of the present invention has the following characteristics: the product produced by the invention has good strength and lower pressure-variable property, and has the most prominent advantages of high product strength, low pressure-variable property, good demoulding property and easy processing. Among them, the most preferable example is the example 3 having not only good strength and pressure deformability but also good price advantage.
The product produced by the invention has good strength and pressing deformability, and has the most outstanding advantages of high product strength, low pressing deformability, good demoulding property and easy processing.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger is characterized by comprising the following components in percentage by weight:
40 to 50 percent of raw rubber,
28 to 42% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
2. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger, which is prepared from the following components in percentage by weight:
45-50% of raw rubber,
30 to 40% of a reinforcing filler,
4 to 10 percent of softening agent,
6 to 9 percent of compounding agent,
2-4% of a vulcanization accelerator.
3. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger, which is prepared from the following components in percentage by weight:
48 percent of raw rubber,
34 percent of reinforcing filler,
7 percent of softening agent,
8 percent of the compounding agent,
3 percent of vulcanization accelerator.
4. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger as claimed in any one of claims 1 to 3, wherein the crude rubber brand is EP 10660.
5. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger as claimed in any one of claims 1 to 3, wherein the reinforcing filler is a combination of N339 and N774 in any proportion.
6. An EP rubber compound for a high-temperature-resistant low-pressure variable-plate heat exchanger as claimed in any one of claims 1 to 3, wherein the softener is P2280 or SR 517.
7. An EP mix for a high temperature resistant low pressure variable plate heat exchanger as claimed in any one of claims 1 to 3, wherein the compounding agent is a combination of ZNOA and PEG 4000.
8. An EP rubber compound for a high temperature and low pressure resistant variable plate heat exchanger as claimed in any one of claims 1 to 3, wherein the vulcanization accelerator is a combination of 14S-FL and HX-45P.
9. The preparation method of the EP rubber compound for the high-temperature-resistant low-pressure variable-plate heat exchanger, which is described in any one of claims 1 to 3, is characterized by comprising the following steps: the method sequentially comprises the following steps:
(1) preparing materials in the following sequence:
sequentially comprises raw rubber, a compounding agent, a reinforcing filler, a softener and a vulcanization accelerator;
(2) firstly, mixing, namely putting raw rubber and a compounding agent into an internal mixer for mixing for 60 s; adding a softener, adding a reinforcing filler into an internal mixer, mixing for 80-100 s, cleaning an upper top plug, mixing for 50-70 s, discharging and discharging to obtain a mixed rubber A for later use;
(3) and (3) mixing the rubber compound A for 60-90 seconds, cleaning, mixing for 30-60 seconds again, and discharging the sheet for later use after sufficient mixing and dispersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354764.7A CN113956578A (en) | 2021-11-16 | 2021-11-16 | EP rubber compound for high-temperature-resistant low-pressure variable-plate heat exchanger and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354764.7A CN113956578A (en) | 2021-11-16 | 2021-11-16 | EP rubber compound for high-temperature-resistant low-pressure variable-plate heat exchanger and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113956578A true CN113956578A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111354764.7A Pending CN113956578A (en) | 2021-11-16 | 2021-11-16 | EP rubber compound for high-temperature-resistant low-pressure variable-plate heat exchanger and preparation method thereof |
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| CN (1) | CN113956578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612215A (en) * | 2022-10-28 | 2023-01-17 | 江苏冠联新材料科技股份有限公司 | Ethylene-propylene rubber compound for rubber plate of solar photovoltaic cell module laminating machine and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482275A (en) * | 2016-01-22 | 2016-04-13 | 太仓冠联高分子材料有限公司 | Special rubber compound used for water stop and having high strength and excellent ageing performance and preparation method of special rubber compound |
| CN109679234A (en) * | 2018-12-27 | 2019-04-26 | 太仓冠联高分子材料有限公司 | A kind of low-smoke and halogen-free fire-retardant rubber sealing strip EP rubber compound and preparation method thereof |
| CN110591238A (en) * | 2019-09-27 | 2019-12-20 | 江苏冠联新材料科技股份有限公司 | EP (ethylene-propylene-diene monomer) rubber compound for high-elasticity wear-resistant printing rubber roller and preparation method thereof |
-
2021
- 2021-11-16 CN CN202111354764.7A patent/CN113956578A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482275A (en) * | 2016-01-22 | 2016-04-13 | 太仓冠联高分子材料有限公司 | Special rubber compound used for water stop and having high strength and excellent ageing performance and preparation method of special rubber compound |
| CN109679234A (en) * | 2018-12-27 | 2019-04-26 | 太仓冠联高分子材料有限公司 | A kind of low-smoke and halogen-free fire-retardant rubber sealing strip EP rubber compound and preparation method thereof |
| CN110591238A (en) * | 2019-09-27 | 2019-12-20 | 江苏冠联新材料科技股份有限公司 | EP (ethylene-propylene-diene monomer) rubber compound for high-elasticity wear-resistant printing rubber roller and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612215A (en) * | 2022-10-28 | 2023-01-17 | 江苏冠联新材料科技股份有限公司 | Ethylene-propylene rubber compound for rubber plate of solar photovoltaic cell module laminating machine and preparation method thereof |
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Application publication date: 20220121 |
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