CN116814022A - Deflection-resistant and liquid medicine-resistant diaphragm pump diaphragm and preparation method thereof - Google Patents
Deflection-resistant and liquid medicine-resistant diaphragm pump diaphragm and preparation method thereof Download PDFInfo
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- CN116814022A CN116814022A CN202310816084.5A CN202310816084A CN116814022A CN 116814022 A CN116814022 A CN 116814022A CN 202310816084 A CN202310816084 A CN 202310816084A CN 116814022 A CN116814022 A CN 116814022A
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- 239000007788 liquid Substances 0.000 title claims abstract description 16
- 239000003814 drug Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 238000004132 cross linking Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 9
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 8
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 8
- 239000002994 raw material Substances 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 150000002148 esters Chemical class 0.000 abstract description 5
- 150000002576 ketones Chemical class 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical group CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 229910001867 inorganic solvent Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
Classifications
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K5/14—Peroxides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the field of rubber composite materials. The flexible and liquid medicine resistant diaphragm pump diaphragm comprises the following components in parts by weight: 90-110 parts of ternary fluororubber, 0.5-1.5 parts of vulcanizing agent, 2-5 parts of crosslinking auxiliary agent, 15-25 parts of carbon black, 3-7 parts of talcum powder and 0.5-1.5 parts of processing auxiliary agent. The diaphragm pump diaphragm has excellent deflection resistance and fatigue resistance, is resistant to various mediums, can keep higher breaking strength and breaking elongation under medium environments such as esters, ketones and the like, has good reciprocating deflection resistance and compression set resistance, has excellent sealing effect when being applied to a diaphragm pump, is not easy to damage, and has long service life.
Description
Technical Field
The invention belongs to the field of rubber composite materials, and particularly relates to a deflection-resistant and liquid-resistant diaphragm pump diaphragm and a preparation method thereof.
Background
The fluorine-containing rubber is a synthetic polymer material containing fluorine atoms on main chain or side chain carbon atoms, and the fluorine atoms have extremely high electronegativity, so that the C-F bond can be larger, the atomic radius of the fluorine-containing rubber is equivalent to half of that of the C-C bond, the fluorine-containing rubber can be closely arranged around the carbon atoms, a good volume shielding effect is achieved on the main chain carbon atoms, good chemical stability and physical and mechanical properties are provided for the fluorine-containing rubber, and the fluorine-containing rubber can be widely applied to the fields of aerospace, aviation, military industry, national defense, automobiles and the like, and particularly can be widely applied to sealing.
For a diaphragm pump for delivering liquid, a diaphragm sealing element of the diaphragm pump is one of key parts for normal operation of the diaphragm pump, and is used as an important part for directly contacting and acting on the delivered liquid, and periodic quick reciprocating motion is required, so that the diaphragm pump has a good sealing effect in long-time operation, meets the requirement of normal leak-free operation of equipment, and has the advantages of being resistant to various media, and being capable of keeping high mechanical strength, high tensile strength and elongation at break, excellent in reciprocating deflection resistance, good in elasticity and low in compression permanent deformation performance under various medium environments.
In the prior art, fluororubber is used as a sealing element, the bending resistance and the dynamic fatigue resistance are poor, and the bending times are damaged about 1 ten thousand times; the fluorine rubber has stable chemical properties, can resist most organic and inorganic solvents and most petroleum-based oils, but cannot resist organic solvents such as ketones, ethers, esters and the like, is in various medium environments for a long time, has low mechanical properties and strength, is easy to damage when being used as a diaphragm in a diaphragm pump, and has short service life.
Disclosure of Invention
In order to solve the technical problems, the invention provides the flexing-resistant and liquid medicine-resistant diaphragm pump diaphragm and the preparation method thereof, and the diaphragm pump diaphragm has excellent flexing-resistant and fatigue resistance, is resistant to various mediums, can keep higher breaking strength and breaking elongation under medium environments such as esters, ketones and the like, has good reciprocating flexing-resistant and fatigue resistance and compression set resistance, has excellent sealing effect when applied to a diaphragm pump, is not easy to damage, and has long service life.
The technical scheme adopted by the invention is as follows:
the flexible and liquid medicine resistant diaphragm pump diaphragm comprises the following components in parts by weight:
90-110 parts of ternary fluororubber, 0.5-1.5 parts of vulcanizing agent, 2-5 parts of crosslinking auxiliary agent, 15-25 parts of carbon black, 3-7 parts of talcum powder and 0.5-1.5 parts of processing auxiliary agent.
Further, the ternary fluororubber is Italian Solvin company product P959.
Further, the vulcanizing agent is vulcanizing agent double 25.
Further, the crosslinking aid is triallyl isocyanurate.
Further, the carbon black is a product N990 of kenkabo company, canada.
Further, the talcum powder is GF-888 of Jiangxi province peak mining development limited company.
Further, the processing aid is HT-290 of STRUKTOL company, germany.
Preferably, the flexible and liquid medicine resistant diaphragm pump diaphragm comprises the following components in parts by weight: 90-110 parts of ternary fluororubber P959, 0.5-1.5 parts of vulcanizing agent double, 2-5 parts of triallyl isocyanurate, 15-25 parts of carbon black N990, 3-7 parts of talcum powder GF-888 and 1.5 parts of processing aid HT-2900.5.
Preferably, the flexible and liquid medicine resistant diaphragm pump diaphragm is prepared from the following components in parts by weight: 959 100 parts of ternary fluororubber P, 25 parts of vulcanizing agent double, 3.5 parts of triallyl isocyanurate, 990 parts of carbon black N, 5 parts of talcum powder GF-888 and 1 part of processing aid HT-290.
The preparation method of the flex-resistant and liquid-resistant diaphragm pump diaphragm comprises the following steps:
s1, preheating raw rubber: adding fluororubber into an open mill, adjusting the roll gap to be 2-3mm thick, passing raw rubber through the roll for 2-4 times, opening two cutters left and right before wrapping the roll, adjusting the roll gap to be 1-2mm, and opening 2-4 triangular bags;
s2, eating powder: regulating the roll spacing to be 2-3mm thick, forming a stacking glue above the gap between the two rolls by regulating the spacing between the baffle plates or the roll spacing, uniformly mixing the rest components, slowly pouring the mixture into the glue material of the roller stacking glue, opening the cutter for two times respectively after powder eating, and beating 2-4 triangular bags;
s3, thin pass: adjusting the roll spacing to be 0-1mm thick, and packing 4-6 triangular bags; adjusting the roll spacing to be 2-3mm thick, and discharging sheets;
s4, parking: the parking time is 16-24 hours;
s5, back refining: regulating the roll spacing to be 3-4mm thick, passing the roll for 2-4 times, and opening the left and right rolls for two times before wrapping; regulating the roll spacing to be 0-1mm thick, packing 4-6 triangular bags, and discharging sheets;
s6, one-stage vulcanization: the temperature of the vulcanizing machine is 165+/-5 ℃, the pressure is 8-12Mpa, and the time is 500-700s; exhausting for 2-3 times, and making a sheet with the thickness of 2-3 mm;
s7, two-stage vulcanization: putting the slices into a baking oven after tabletting, and baking at 200-260 ℃ for 2-6 hours;
s8, secondary parking: and (5) standing the film for 6-10 h.
The invention has the following beneficial effects:
the diaphragm pump diaphragm has excellent deflection resistance and fatigue resistance, is resistant to various media, can keep higher breaking strength and breaking elongation under the medium environments such as esters, ketones and the like, has good reciprocating deflection resistance and compression set resistance, has excellent sealing effect when being applied to a diaphragm pump, is not easy to damage, and has long service life.
Detailed Description
The present invention will be described in detail with reference to the following examples, which are only preferred embodiments of the present invention and are not limiting thereof.
The fluororubber in examples 1-3 below was selected from Italian Sorve company product P959; the vulcanizing agent is Trigonox101, which is a product of Tianjin Akesinobell peroxide limited company; the cross-linking auxiliary agent is TAIC/S of Rhine chemical (Qingdao) limited company; the carbon black is selected from Canadian Kenkobo company product N990; the talcum powder is GF-888 of Jiangxi province peak mining development limited company; the processing aid is HT-290 of STRUKTOL company of Germany.
Table 1 below shows the specific implementation amounts (units: parts) of the flex-resistant and drug-resistant diaphragm pump diaphragms provided in examples 1-3
| Material | Example 1 | Example 2 | Example 3 |
| Ternary fluorine gum P959 | 100 | 92 | 108 |
| Vulcanizing agent Triganox 101 | 1 | 1 | 1 |
| Crosslinking auxiliary TAIC/S | 3.5 | 3.5 | 3.5 |
| Carbon black N990 | 20 | 20 | 20 |
| Talcum powder GF-888 | 5 | 5 | 5 |
| Auxiliary HT-290 | 1 | 1 | 1 |
Table 2 below shows the specific implementation amounts (units: parts) of the diaphragm pump diaphragms provided in comparative examples 1 to 13
The preparation methods of the diaphragm pump diaphragms provided in examples 1 to 3 and comparative examples 1 to 13 of the present invention are as follows:
s1, preheating raw rubber: adding fluororubber into an open mill, adjusting the roll gap to be 2mm thick, passing raw rubber through the roll for 3 times, opening two cutters left and right before wrapping the roll, adjusting the roll gap to be 2mm, and beating 3 triangular bags;
s2, eating powder: adjusting the roll spacing to be 2mm thick, forming a stacking glue above the gap between the two rolls by adjusting the spacing between the baffle plates or the roll spacing, uniformly mixing the rest components, slowly pouring the mixture into the glue material of the roller stacking glue, opening the cutter for two times respectively after powder eating, and opening 3 triangular bags;
s3, thin pass: adjusting the roll spacing to be 1mm thick, and forming 5 triangular bags; adjusting the roll spacing to be 2mm thick, and discharging sheets;
s4, parking: the parking time is 20h;
s5, back refining: regulating the thickness of a roll gap to be 3mm, passing the roll for 3 times, and opening the left and right rolls for two times before wrapping; regulating the roll spacing to be 1mm thick, punching 5 triangular bags, and discharging sheets;
s6, one-stage vulcanization: the temperature of the vulcanizing machine is 165 ℃, the pressure is 10Mpa, and the time is 600s; exhausting for 3 times to obtain a sheet with the thickness of 2 mm;
s7, two-stage vulcanization: putting the slices into a baking oven, baking at 230 ℃ for 4 hours;
s8, secondary parking: and (5) standing the film for 8 hours.
Various properties of the diaphragm pump diaphragms provided in the examples and comparative examples of the present invention were tested, and the following tables 3 to 6 show the results of the various properties tests of the examples and comparative examples:
table 3:
table 4:
table 5:
table 6:
from the test results in tables 3-6, the diaphragm of the diaphragm pump has excellent flexural fatigue resistance, multiple media resistance, high breaking strength and elongation at break under the medium environments such as esters, ketones and the like, good reciprocating flexural fatigue resistance and compression set resistance, excellent sealing effect, difficult damage and long service life when applied to the diaphragm pump.
Claims (10)
1. The flexible and liquid medicine resistant diaphragm pump diaphragm is characterized by comprising the following raw materials in parts by weight: 90-110 parts of ternary fluororubber, 0.5-1.5 parts of vulcanizing agent, 2-5 parts of crosslinking auxiliary agent, 15-25 parts of carbon black, 3-7 parts of talcum powder and 0.5-1.5 parts of processing auxiliary agent.
2. The flex resistant and drug resistant diaphragm pump membrane of claim 1, wherein said ternary fluororubber is italian solv product P959.
3. The flex-resistant and drug-resistant diaphragm pump membrane according to claim 1, wherein said vulcanizing agent is vulcanizing agent double 25.
4. The flex-resistant and drug-resistant diaphragm pump membrane of claim 1, wherein said cross-linking aid is triallyl isocyanurate.
5. The flex resistant and drug resistant diaphragm pump membrane of claim 1 wherein said carbon black is canadian ken cabo product N990.
6. The flexible and liquid resistant diaphragm pump membrane of claim 1, wherein said talc is GF-888, a peak mining development limited company of Jiangxi province.
7. The flex resistant and drug resistant diaphragm pump membrane of claim 1, wherein said processing aid is selected from the group consisting of HT-290 from STRUKTOL corporation, germany.
8. The flexible and liquid resistant diaphragm pump membrane of claim 1, wherein the preparation raw materials comprise the following components in parts by weight: 90-110 parts of ternary fluororubber P959, 250.5-1.5 parts of vulcanizing agent bis, 2-5 parts of triallyl isocyanurate, 15-25 parts of carbon black N990, 8883-7 parts of talcum powder GF-290 and 0.5-1.5 parts of processing aid HT-290.
9. The flexible and liquid resistant diaphragm pump diaphragm according to claim 1, wherein the preparation raw materials comprise the following components in parts by weight: 959 100 parts of ternary fluororubber P, 25 parts of vulcanizing agent double, 3.5 parts of triallyl isocyanurate, 990 parts of carbon black N, 5 parts of talcum powder GF-888 and 1 part of processing aid HT-290.
10. A method for preparing a flex-resistant and liquid-resistant diaphragm pump membrane according to any one of claims 1-9, comprising the steps of:
s1, preheating raw rubber: adding fluororubber into an open mill, adjusting the roll gap to be 2-3mm thick, passing raw rubber through the roll for 2-4 times, opening two cutters left and right before wrapping the roll, adjusting the roll gap to be 1-2mm, and opening 2-4 triangular bags;
s2, eating powder: regulating the roll spacing to be 2-3mm thick, forming a stacking glue above the gap between the two rolls by regulating the spacing between the baffle plates or the roll spacing, uniformly mixing the rest components, slowly pouring the mixture into the glue material of the roller stacking glue, opening the cutter for two times respectively after powder eating, and beating 2-4 triangular bags;
s3, thin pass: adjusting the roll spacing to be 0-1mm thick, and packing 4-6 triangular bags; adjusting the roll spacing to be 2-3mm thick, and discharging sheets;
s4, parking: the parking time is 16-24 hours;
s5, back refining: regulating the roll spacing to be 3-4mm thick, passing the roll for 2-4 times, and opening the left and right rolls for two times before wrapping; regulating the roll spacing to be 0-1mm thick, packing 4-6 triangular bags, and discharging sheets;
s6, one-stage vulcanization: the temperature of the vulcanizing machine is 165+/-5 ℃, the pressure is 8-12Mpa, and the time is 500-700s; exhausting for 2-3 times, and making a sheet with the thickness of 2-3 mm;
s7, two-stage vulcanization: putting the slices into a baking oven after tabletting, and baking at 200-260 ℃ for 2-6 hours;
s8, secondary parking: and (5) standing the film for 6-10 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310816084.5A CN116814022B (en) | 2023-07-05 | 2023-07-05 | Deflection-resistant and liquid medicine-resistant diaphragm pump diaphragm and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310816084.5A CN116814022B (en) | 2023-07-05 | 2023-07-05 | Deflection-resistant and liquid medicine-resistant diaphragm pump diaphragm and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116814022A true CN116814022A (en) | 2023-09-29 |
| CN116814022B CN116814022B (en) | 2024-06-07 |
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| CN116814022B (en) | 2024-06-07 |
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