CN115029002A - Preparation method of conductive silicone rubber - Google Patents

Preparation method of conductive silicone rubber Download PDF

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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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郭学方
汤守家
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Kunshan Kunye Electronic Technology Co ltd
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Kunshan Kunye Electronic Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions 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
    • C08L83/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2217Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224Magnesium hydroxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2244Oxides; Hydroxides of metals of zirconium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/001Conductive additives

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  • 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

Preparation method of conductive silicone rubber
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.
CN202210788095.2A 2022-07-06 2022-07-06 Preparation method of conductive silicone rubber Pending CN115029002A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103725010A (en) * 2013-11-29 2014-04-16 山东永泰化工有限公司 Fire-proof conductive silicone rubber composition
CN104448831A (en) * 2014-11-27 2015-03-25 江阴润玛电子材料股份有限公司 Preparation method for conductivity-reinforced rubber
CN106633905A (en) * 2016-11-10 2017-05-10 周荣 Preparation method of high-temperature rebound type conductive rubber
CN112210215A (en) * 2019-07-12 2021-01-12 中蓝晨光化工研究设计院有限公司 Low-tensile permanent deformation conductive silicone rubber and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103725010A (en) * 2013-11-29 2014-04-16 山东永泰化工有限公司 Fire-proof conductive silicone rubber composition
CN104448831A (en) * 2014-11-27 2015-03-25 江阴润玛电子材料股份有限公司 Preparation method for conductivity-reinforced rubber
CN106633905A (en) * 2016-11-10 2017-05-10 周荣 Preparation method of high-temperature rebound type conductive rubber
CN112210215A (en) * 2019-07-12 2021-01-12 中蓝晨光化工研究设计院有限公司 Low-tensile permanent deformation conductive silicone rubber and preparation method thereof

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Application publication date: 20220909