CN115029002A - Preparation method of conductive silicone rubber - Google Patents
Preparation method of conductive silicone rubber Download PDFInfo
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- CN115029002A CN115029002A CN202210788095.2A CN202210788095A CN115029002A CN 115029002 A CN115029002 A CN 115029002A CN 202210788095 A CN202210788095 A CN 202210788095A CN 115029002 A CN115029002 A CN 115029002A
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- silicone rubber
- conductive silicone
- conductive
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 103
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title abstract description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 50
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000004014 plasticizer Substances 0.000 claims abstract description 30
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011231 conductive filler Substances 0.000 claims abstract description 26
- 239000003112 inhibitor Substances 0.000 claims abstract description 25
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 25
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 25
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 20
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 20
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 20
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 20
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 20
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims description 41
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 20
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 15
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000013543 active substance Substances 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 150000002978 peroxides Chemical class 0.000 claims description 10
- 239000003755 preservative agent Substances 0.000 claims description 10
- 230000002335 preservative effect Effects 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- 150000004665 fatty acids Chemical class 0.000 claims description 8
- 239000005060 rubber Substances 0.000 claims description 8
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 5
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 5
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 claims description 5
- RGHHSNMVTDWUBI-UHFFFAOYSA-N 4-hydroxybenzaldehyde Chemical compound OC1=CC=C(C=O)C=C1 RGHHSNMVTDWUBI-UHFFFAOYSA-N 0.000 claims description 5
- REIDAMBAPLIATC-UHFFFAOYSA-N 4-methoxycarbonylbenzoic acid Chemical compound COC(=O)C1=CC=C(C(O)=O)C=C1 REIDAMBAPLIATC-UHFFFAOYSA-N 0.000 claims description 5
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229930006000 Sucrose Natural products 0.000 claims description 5
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 229920000180 alkyd Polymers 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- 229960000892 attapulgite Drugs 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000012990 dithiocarbamate Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 150000004687 hexahydrates Chemical class 0.000 claims description 5
- ZCTXEAQXZGPWFG-UHFFFAOYSA-N imidurea Chemical compound O=C1NC(=O)N(CO)C1NC(=O)NCNC(=O)NC1C(=O)NC(=O)N1CO ZCTXEAQXZGPWFG-UHFFFAOYSA-N 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052625 palygorskite Inorganic materials 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920005749 polyurethane resin Polymers 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229940069338 potassium sorbate Drugs 0.000 claims description 5
- 235000010241 potassium sorbate Nutrition 0.000 claims description 5
- 239000004302 potassium sorbate Substances 0.000 claims description 5
- 239000001540 sodium lactate Substances 0.000 claims description 5
- 229940005581 sodium lactate Drugs 0.000 claims description 5
- 235000011088 sodium lactate Nutrition 0.000 claims description 5
- 229960004793 sucrose Drugs 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 5
- 229960002447 thiram Drugs 0.000 claims description 5
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K2201/001—Conductive additives
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of conductive silicone rubber, and particularly relates to the technical field of silicone rubber, wherein the used raw materials (in parts by weight) comprise 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconia, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structure inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate. After the plasticizer is added, the tearing strength and the elongation at break of the conductive silicone rubber are both greater than those of a common conductive silicone rubber sample of a control group, the conductive silicone rubber prepared by the invention can prevent cracks on a conductive silicone rubber product from expanding due to stress, and large plastic deformation is prevented, so that the service life of the conductive silicone rubber product is prolonged, and the conductive silicone rubber is easy to glue with other materials after the plasticizer is added, the adhesive force is enhanced, and the processing of the silicone rubber glued product is facilitated.
Description
Technical Field
The invention relates to the technical field of silicone rubber, in particular to a preparation method of conductive silicone rubber.
Background
Silicone rubber refers to rubber having a backbone composed of alternating silicon and oxygen atoms, with the silicon atoms typically having two organic groups attached to them. Conventional silicone rubbers consist predominantly of siloxane segments containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high-temperature and low-temperature resistance of the silicone rubber, and the introduction of trifluoropropyl and cyano can improve the temperature resistance and oil resistance of the silicone rubber. The silicon rubber also has the outstanding characteristics of physiological inertia and no coagulation, so the silicon rubber is widely applied in the medical field.
The conductive silicone rubber is prepared by taking silicone rubber as base rubber, adding conductive filler, cross-linking agent and the like, mixing, refining and vulcanizing. Compared with common conductive rubber, the conductive silicone rubber has the advantages of small volume resistivity, low hardness, high and low temperature resistance and aging resistance, and is particularly suitable for manufacturing conductive silicone rubber products with good conductivity, complex shapes and fine structures.
The prior art has the following defects: the cracks on the conductive silicon rubber product are expanded due to stress, and the process is accompanied with large plastic deformation, so that the service cycle of the conductive silicon rubber product is shortened, the content of silicone oil on the surface of the conductive silicon rubber product is very small, the adhesion between the conductive silicon rubber product and other materials is difficult, the adhesion force is poor, and the product formed by the silicone rubber adhesion is inconvenient to process.
Disclosure of Invention
Therefore, the invention provides a preparation method of conductive silicone rubber, which aims to solve the problems that cracks on a conductive silicone rubber product are expanded due to stress in the prior art, the process is accompanied by large plastic deformation, so that the service cycle of the conductive silicone rubber product is shortened, the silicone oil content on the surface of the conductive silicone rubber product is very small, the adhesion between the conductive silicone rubber product and other materials is difficult, the adhesion force is poor, and the product formed by silicone rubber adhesion is inconvenient to process.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the conductive silicone rubber comprises, by weight, 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconium oxide, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structure inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate.
Further, the used raw materials (by weight portion) comprise 35 portions of raw silicone rubber, 5 portions of calcium carbonate, 7 portions of plasticizer, 2 portions of zirconia, 6 portions of conductive filler, 2 portions of platinum complex, 2 portions of sodium sulfate, 1 portion of magnesium hydroxide, 2 portions of structure inhibitor, 6 portions of vulcanizing agent, 2 portions of methyl silicone oil and 5 portions of zinc stearate.
Further, the used raw materials (by weight portion) comprise 45 portions of raw silicone rubber, 6.5 portions of calcium carbonate, 8 portions of plasticizer, 4 portions of zirconia, 8 portions of conductive filler, 3 portions of platinum complex, 3 portions of sodium sulfate, 2 portions of magnesium hydroxide, 3.5 portions of structure inhibitor, 7.5 portions of vulcanizing agent, 2.5 portions of methyl silicone oil and 7 portions of zinc stearate.
Further, the used raw materials (by weight portion) comprise 55 portions of raw silicone rubber, 8 portions of calcium carbonate, 9 portions of plasticizer, 6 portions of zirconia, 10 portions of conductive filler, 4 portions of platinum complex, 4 portions of sodium sulfate, 3 portions of magnesium hydroxide, 5 portions of structure inhibitor, 9 portions of vulcanizing agent, 3 portions of methyl silicone oil and 9 portions of zinc stearate.
Further, the plasticizer is prepared by mixing 30 parts of fly ash, 5 parts of rosin thermopolymer and 15 parts of an active agent in parts by weight, wherein the active agent is prepared by mixing 1 part of humate, 2 parts of diatomite, 0.2 part of urea and 0.03 part of sodium lactate.
Further, the conductive filler is prepared by mixing 12 parts of polyurethane resin, 15 parts of alkyd resin, 8 parts of epoxy resin, 0.7 part of silane coupling agent, 10 parts of acetylene black, 1 part of organic bentonite, 6 parts of carbon fiber, 0.2 part of dimethyl polysiloxane, 0.5 part of dispersing agent, 2 parts of polyvinyl alcohol, 7 parts of ethyl acetate, 5 parts of isopropanol and 0.8 part of preservative, wherein the dispersing agent at least comprises one of residues of dimeric fatty acid and trimeric fatty acid of carboxylic acid groups, and the preservative is prepared by mixing 1 part of imidazolidinyl urea, 0.01 part of methyl p-carboxybenzoate, 0.1 part of potassium sorbate and 1 part of propylene glycol.
Further, the platinum complex (by weight) is prepared by mixing 10 parts of hydroxybenzaldehyde, 3 parts of citric acid, 2 parts of chloroplatinic acid hexahydrate and 3 parts of isopropanol.
Further, the structure inhibitor is prepared by mixing 31 parts of cane sugar, 1 part of attapulgite and 68 parts of distilled water (by weight).
Further, the vulcanizing agent is prepared by mixing 5 parts of sulfur, 1 part of peroxide, 1 part of thiazole, 3 parts of thiuram, 1 part of dithiocarbamate, 1.5 parts of amine and aldehyde-amine condensate and 2 parts of ethanolamine, wherein the peroxide is organic monoperoxycarbonate R-O-CO-O-O-tertiary butyl, and R is C1-C6 alkyl.
The invention also discloses a preparation method of the conductive silicone rubber, which comprises the following specific steps:
the method comprises the following steps of firstly, chopping, drying, crushing, screening, dissolving, filtering and evaporating raw silicon rubber, calcium carbonate, a plasticizer, zirconium oxide, a conductive filler, a platinum complex, sodium sulfate, magnesium hydroxide, a structure inhibitor, a vulcanizing agent and zinc stearate, wherein the crushing fineness of the raw silicon rubber and the vulcanizing agent is 100-150 meshes, and the drying temperature is not more than 70 ℃;
secondly, placing the methyl silicone oil and the raw materials in the first step into an open mill together for plastication and banburying, and then mixing by adopting an internal rubber mixer to prepare a semi-finished conductive silicone rubber;
and step three, vulcanizing the semi-finished conductive silicone rubber at the vulcanization temperature of 130-180 ℃ and the vulcanization pressure of 18-21Mpa to obtain the conductive silicone rubber.
The invention has the following advantages: according to the invention, after the plasticizer is added, the tearing strength and the elongation at break of the conductive silicone rubber are improved, compared with the prior art, the conductive silicone rubber prepared by the invention can prevent cracks on the conductive silicone rubber product from expanding due to stress, and can prevent large plastic deformation from being accompanied, so that the service life of the conductive silicone rubber product is prolonged, and the conductive silicone rubber is easy to glue with other materials after the plasticizer is added, the gluing adhesion is enhanced, and the processing of the silicone rubber glued product is facilitated.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.
Example 1:
the invention discloses conductive silicone rubber, which comprises, by weight, 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconia, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structural inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate.
And specifically in this embodiment: the used raw materials (by weight portion) comprise 35 portions of raw silicone rubber, 5 portions of calcium carbonate, 7 portions of plasticizer, 2 portions of zirconia, 6 portions of conductive filler, 2 portions of platinum complex, 2 portions of sodium sulfate, 1 portion of magnesium hydroxide, 2 portions of structure inhibitor, 6 portions of vulcanizing agent, 2 portions of methyl silicone oil and 5 portions of zinc stearate.
Further, the plasticizer is prepared by mixing 30 parts of fly ash, 5 parts of rosin thermopolymer and 15 parts of an active agent in parts by weight, wherein the active agent is prepared by mixing 1 part of humate, 2 parts of diatomite, 0.2 part of urea and 0.03 part of sodium lactate.
Further, the conductive filler is prepared by mixing 12 parts of polyurethane resin, 15 parts of alkyd resin, 8 parts of epoxy resin, 0.7 part of silane coupling agent, 10 parts of acetylene black, 1 part of organic bentonite, 6 parts of carbon fiber, 0.2 part of dimethyl polysiloxane, 0.5 part of dispersing agent, 2 parts of polyvinyl alcohol, 7 parts of ethyl acetate, 5 parts of isopropanol and 0.8 part of preservative, wherein the dispersing agent is dimer fatty acid of carboxylic acid group, and the preservative is prepared by mixing 1 part of imidazolidinyl urea, 0.01 part of methyl p-carboxybenzoate, 0.1 part of potassium sorbate and 1 part of propylene glycol.
Further, the platinum complex (by weight) is prepared by mixing 10 parts of hydroxybenzaldehyde, 3 parts of citric acid, 2 parts of chloroplatinic acid hexahydrate and 3 parts of isopropanol.
Further, the structure inhibitor is prepared by mixing 31 parts of cane sugar, 1 part of attapulgite and 68 parts of distilled water (by weight).
Further, the vulcanizing agent is prepared by mixing 5 parts of sulfur, 1 part of peroxide, 1 part of thiazole, 3 parts of thiuram, 1 part of dithiocarbamate, 1.5 parts of amine and aldehyde-amine condensate and 2 parts of ethanolamine, wherein the peroxide is organic monoperoxycarbonate R-O-CO-O-O-tert-butyl, and R is C1-C6 alkyl.
The invention also discloses a preparation method of the conductive silicone rubber, which comprises the following specific steps:
the method comprises the following steps of firstly, chopping, drying, crushing, screening, melting, filtering and evaporating raw silicon rubber, calcium carbonate, a plasticizer, zirconium oxide, a conductive filler, a platinum complex, sodium sulfate, magnesium hydroxide, a structure inhibitor, a vulcanizing agent and zinc stearate, wherein the crushing fineness of the raw silicon rubber and the vulcanizing agent is 100 meshes, and the drying temperature is 50 ℃;
secondly, placing the methyl silicone oil and the raw materials in the first step into an open mill together for plastication and banburying, and then mixing by adopting an internal rubber mixer to prepare a semi-finished conductive silicone rubber;
and step three, vulcanizing the semi-finished conductive silicone rubber at the temperature of 130 ℃ and the vulcanization pressure of 18Mpa to obtain the conductive silicone rubber.
Example 2:
the invention discloses conductive silicone rubber, which comprises, by weight, 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconia, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structural inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate.
And specifically in this embodiment: the used raw materials (by weight portion) comprise 45 portions of raw silicon rubber, 6.5 portions of calcium carbonate, 8 portions of plasticizer, 4 portions of zirconia, 8 portions of conductive filler, 3 portions of platinum complex, 3 portions of sodium sulfate, 2 portions of magnesium hydroxide, 3.5 portions of structure inhibitor, 7.5 portions of vulcanizing agent, 2.5 portions of methyl silicone oil and 7 portions of zinc stearate.
Further, the plasticizer is prepared by mixing 30 parts of fly ash, 5 parts of rosin thermopolymer and 15 parts of an active agent in parts by weight, wherein the active agent is prepared by mixing 1 part of humate, 2 parts of diatomite, 0.2 part of urea and 0.03 part of sodium lactate.
Further, the conductive filler is prepared by mixing 12 parts of polyurethane resin, 15 parts of alkyd resin, 8 parts of epoxy resin, 0.7 part of silane coupling agent, 10 parts of acetylene black, 1 part of organic bentonite, 6 parts of carbon fiber, 0.2 part of dimethyl polysiloxane, 0.5 part of dispersing agent, 2 parts of polyvinyl alcohol, 7 parts of ethyl acetate, 5 parts of isopropanol and 0.8 part of preservative, wherein the dispersing agent is a residue of trimeric fatty acid, and the preservative is prepared by mixing 1 part of imidazolidinyl urea, 0.01 part of methyl p-carboxybenzoate, 0.1 part of potassium sorbate and 1 part of propylene glycol.
Further, the platinum complex (by weight) is prepared by mixing 10 parts of hydroxybenzaldehyde, 3 parts of citric acid, 2 parts of chloroplatinic acid hexahydrate and 3 parts of isopropanol.
Further, the structure inhibitor is prepared by mixing 31 parts of cane sugar, 1 part of attapulgite and 68 parts of distilled water (by weight).
Further, the vulcanizing agent is prepared by mixing 5 parts of sulfur, 1 part of peroxide, 1 part of thiazole, 3 parts of thiuram, 1 part of dithiocarbamate, 1.5 parts of amine and aldehyde-amine condensate and 2 parts of ethanolamine, wherein the peroxide is organic monoperoxycarbonate R-O-CO-O-O-tert-butyl, and R is C1-C6 alkyl.
The invention also discloses a preparation method of the conductive silicone rubber, which comprises the following specific steps:
the method comprises the following steps of firstly, chopping, drying, crushing, screening, melting, filtering and evaporating raw silicon rubber, calcium carbonate, a plasticizer, zirconium oxide, a conductive filler, a platinum complex, sodium sulfate, magnesium hydroxide, a structure inhibitor, a vulcanizing agent and zinc stearate, wherein the crushing fineness of the raw silicon rubber and the vulcanizing agent is 125 meshes, and the drying temperature is 60 ℃;
secondly, placing the methyl silicone oil and the raw materials in the first step into an open mill together for plastication and banburying, and then mixing by adopting an internal rubber mixer to prepare a semi-finished conductive silicone rubber;
and step three, vulcanizing the semi-finished conductive silicone rubber at the temperature of 155 ℃ and the vulcanization pressure of 19.5Mpa to obtain the conductive silicone rubber.
Example 3:
the invention discloses conductive silicone rubber, which comprises the following raw materials (by weight part) 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconia, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structure inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate.
And specifically in this embodiment: the used raw materials (by weight portion) comprise 55 portions of raw silicone rubber, 8 portions of calcium carbonate, 9 portions of plasticizer, 6 portions of zirconia, 10 portions of conductive filler, 4 portions of platinum complex, 4 portions of sodium sulfate, 3 portions of magnesium hydroxide, 5 portions of structure inhibitor, 9 portions of vulcanizing agent, 3 portions of methyl silicone oil and 9 portions of zinc stearate.
Further, the plasticizer is prepared by mixing 30 parts of fly ash, 5 parts of rosin thermopolymer and 15 parts of an active agent in parts by weight, wherein the active agent is prepared by mixing 1 part of humate, 2 parts of diatomite, 0.2 part of urea and 0.03 part of sodium lactate.
Further, the conductive filler is prepared by mixing 12 parts of polyurethane resin, 15 parts of alkyd resin, 8 parts of epoxy resin, 0.7 part of silane coupling agent, 10 parts of acetylene black, 1 part of organic bentonite, 6 parts of carbon fiber, 0.2 part of dimethyl polysiloxane, 0.5 part of dispersing agent, 2 parts of polyvinyl alcohol, 7 parts of ethyl acetate, 5 parts of isopropanol and 0.8 part of preservative, wherein the dispersing agent contains a residue of dimer fatty acid and trimer fatty acid of carboxylic acid group, and the preservative is prepared by mixing 1 part of imidazolidinyl urea, 0.01 part of methyl p-carboxybenzoate, 0.1 part of potassium sorbate and 1 part of propylene glycol.
Further, the platinum complex (by weight) is prepared by mixing 10 parts of hydroxybenzaldehyde, 3 parts of citric acid, 2 parts of chloroplatinic acid hexahydrate and 3 parts of isopropanol.
Further, the structure inhibitor is prepared by mixing 31 parts of cane sugar, 1 part of attapulgite and 68 parts of distilled water (by weight).
Further, the vulcanizing agent is prepared by mixing 5 parts of sulfur, 1 part of peroxide, 1 part of thiazole, 3 parts of thiuram, 1 part of dithiocarbamate, 1.5 parts of amine and aldehyde-amine condensate and 2 parts of ethanolamine, wherein the peroxide is organic monoperoxycarbonate R-O-CO-O-O-tert-butyl, and R is C1-C6 alkyl.
The invention also discloses a preparation method of the conductive silicone rubber, which comprises the following specific steps:
firstly, raw silicon rubber, calcium carbonate, a plasticizer, zirconium oxide, a conductive filler, a platinum complex, sodium sulfate, magnesium hydroxide, a structure inhibitor, a vulcanizing agent and zinc stearate are chopped, dried, crushed, screened, dissolved, filtered and evaporated, the crushing fineness of the raw silicon rubber and the vulcanizing agent is 150 meshes, and the drying temperature is 70 ℃;
secondly, placing the methyl silicone oil and the raw materials in the first step into an open mill together for plastication and banburying, and then mixing by adopting an internal rubber mixer to prepare a semi-finished conductive silicone rubber;
and step three, vulcanizing the semi-finished conductive silicone rubber at the temperature of 180 ℃ and the vulcanization pressure of 21Mpa to obtain the conductive silicone rubber.
Example 4:
three groups of conductive silicone rubber samples prepared in examples 1 to 3 are uniformly cut into 5 knives along the same direction with common conductive silicone rubber according to GB/T529-2008, cutting openings are located in the centers of the samples, the depth is 50mm, the three groups of cut samples are respectively placed on corresponding clamping devices of a tensile testing machine to be clamped according to GB/T529-2008, the force required when the samples are torn is tested, and the tearing strength, the hardness and the elongation at break are obtained according to GB/T12833 for comparison, wherein the comparative data are shown in the following table:
tear Strength (kN/m) | Hardness (degree) | Elongation at Break (%) | |
Example 1 | 65 | 15 | 283 |
Example 2 | 70 | 14 | 285 |
Example 3 | 62 | 17 | 279 |
Control group | 58 | 19 | 265 |
In summary, after the plasticizer is added to the three groups of samples in the embodiment of the present invention, the tearing strength and the elongation at break of the samples are both greater than those of the common conductive silicone rubber samples in the control group, wherein the effect of the embodiment 2 is the best, so that the cracks on the conductive silicone rubber product can be prevented from expanding due to stress, and large plastic deformation is prevented, so that the service life of the conductive silicone rubber product is prolonged.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (10)
1. The conductive silicone rubber is characterized in that the used raw materials (in parts by weight) comprise 35-55 parts of raw silicone rubber, 5-8 parts of calcium carbonate, 7-9 parts of plasticizer, 2-6 parts of zirconia, 6-10 parts of conductive filler, 2-4 parts of platinum complex, 2-4 parts of sodium sulfate, 1-3 parts of magnesium hydroxide, 2-5 parts of structure inhibitor, 6-9 parts of vulcanizing agent, 2-3 parts of methyl silicone oil and 5-9 parts of zinc stearate.
2. The conductive silicone rubber according to claim 1, wherein: the used raw materials (by weight portion) comprise 35 portions of raw silicone rubber, 5 portions of calcium carbonate, 7 portions of plasticizer, 2 portions of zirconia, 6 portions of conductive filler, 2 portions of platinum complex, 2 portions of sodium sulfate, 1 portion of magnesium hydroxide, 2 portions of structure inhibitor, 6 portions of vulcanizing agent, 2 portions of methyl silicone oil and 5 portions of zinc stearate.
3. The conductive silicone rubber according to claim 1, wherein: the used raw materials (by weight portion) comprise 45 portions of raw silicon rubber, 6.5 portions of calcium carbonate, 8 portions of plasticizer, 4 portions of zirconia, 8 portions of conductive filler, 3 portions of platinum complex, 3 portions of sodium sulfate, 2 portions of magnesium hydroxide, 3.5 portions of structure inhibitor, 7.5 portions of vulcanizing agent, 2.5 portions of methyl silicone oil and 7 portions of zinc stearate.
4. The conductive silicone rubber according to claim 1, wherein: the used raw materials (calculated by weight parts) comprise 55 parts of raw silicone rubber, 8 parts of calcium carbonate, 9 parts of plasticizer, 6 parts of zirconia, 10 parts of conductive filler, 4 parts of platinum complex, 4 parts of sodium sulfate, 3 parts of magnesium hydroxide, 5 parts of structure inhibitor, 9 parts of vulcanizing agent, 3 parts of methyl silicone oil and 9 parts of zinc stearate.
5. The conductive silicone rubber according to claim 1, wherein: the plasticizer is prepared by mixing 30 parts of fly ash, 5 parts of rosin thermopolymer and 15 parts of active agent in parts by weight, wherein the active agent is prepared by mixing 1 part of humate, 2 parts of diatomite, 0.2 part of urea and 0.03 part of sodium lactate.
6. The conductive silicone rubber according to claim 1, wherein: the conductive filler is prepared by mixing 12 parts of polyurethane resin, 15 parts of alkyd resin, 8 parts of epoxy resin, 0.7 part of silane coupling agent, 10 parts of acetylene black, 1 part of organic bentonite, 6 parts of carbon fiber, 0.2 part of dimethyl polysiloxane, 0.5 part of dispersing agent, 2 parts of polyvinyl alcohol, 7 parts of ethyl acetate, 5 parts of isopropanol and 0.8 part of preservative, wherein the dispersing agent at least comprises one of residues of dimeric fatty acid and trimeric fatty acid of carboxylic acid groups, and the preservative is prepared by mixing 1 part of imidazolidinyl urea, 0.01 part of methyl p-carboxybenzoate, 0.1 part of potassium sorbate and 1 part of propylene glycol.
7. The conductive silicone rubber according to claim 1, wherein: the platinum complex (in parts by weight) is prepared by mixing 10 parts of hydroxybenzaldehyde, 3 parts of citric acid, 2 parts of chloroplatinic acid hexahydrate and 3 parts of isopropanol.
8. The conductive silicone rubber according to claim 1, wherein: the structure inhibitor is prepared by mixing 31 parts of cane sugar, 1 part of attapulgite and 68 parts of distilled water.
9. The conductive silicone rubber according to claim 1, wherein: the vulcanizing agent is prepared by mixing 5 parts of sulfur, 1 part of peroxide, 1 part of thiazole, 3 parts of thiuram, 1 part of dithiocarbamate, 1.5 parts of amine and aldehyde-amine condensate and 2 parts of ethanolamine, wherein the peroxide is organic monoperoxycarbonate R-O-CO-O-O-tert-butyl, and R is C1-C6 alkyl.
10. A method for preparing the electrically conductive silicone rubber according to any one of claims 1 to 9, characterized in that: the method comprises the following specific steps:
the method comprises the following steps of firstly, chopping, drying, crushing, screening, dissolving, filtering and evaporating raw silicon rubber, calcium carbonate, a plasticizer, zirconium oxide, a conductive filler, a platinum complex, sodium sulfate, magnesium hydroxide, a structure inhibitor, a vulcanizing agent and zinc stearate, wherein the crushing fineness of the raw silicon rubber and the vulcanizing agent is 100-150 meshes, and the drying temperature is not more than 70 ℃;
secondly, placing the methyl silicone oil and the raw materials in the first step into an open mill together for plastication and banburying, and then mixing by adopting an internal rubber mixer to prepare a semi-finished conductive silicone rubber;
and step three, vulcanizing the semi-finished conductive silicone rubber at the temperature of 130-180 ℃ and the vulcanization pressure of 18-21Mpa to obtain the conductive silicone rubber.
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CN103665888A (en) * | 2013-11-29 | 2014-03-26 | 山东永泰化工有限公司 | Method for preparing fire-resistant conductive silicone rubber |
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CN103665888A (en) * | 2013-11-29 | 2014-03-26 | 山东永泰化工有限公司 | Method for preparing fire-resistant conductive silicone rubber |
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