CN104804350A - High-temperature-resistant sealing material and preparation method thereof - Google Patents
High-temperature-resistant sealing material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-temperature-resistant sealing material and a preparation method thereof. The wear-resistant sealing material comprises the following components in parts by weight: 70-72 parts of acrylate rubber, 22-25 parts of butadiene styrene rubber, 11-13 parts of carbon black, 5-7 parts of glycerol trioleate, 15-18 parts of high styrene resin, 2-4 parts of an active agent magnesium oxide, 5-8 parts of a fire retardant tetrachlorophthalic anhydride, 1-3 parts of sulphur powder, 2-4 parts of triethyl citrate, 3-5 parts of an anti-aging agent 4010NA, 1-3 parts of ceramic powder, 3-6 parts of dioctyl adipate, 2-6 parts of zinc oxide, 4-8 parts of ethyl chrysanthemate, 0.2-0.8 part of an accelerant TMTD and 1-2 parts of palm wax.
Description
Technical field
The invention belongs to sealing material field, relate to a kind of high temperature sealing material and preparation method thereof.
Background technology
Sealing material draw with regard to refer to can bear seam displacement to reach airtight, watertight object and the material embedded in building joint is called sealing material, early stage sealing material, mainly fabric, mineral fibre or felt etc.Along with the development of industrial technology, in order to meet day by day complicated, the various requirement of hydraulic pressure, pneumostop, sealing material there has also been and develops rapidly, and its kind gets more and more, and process based prediction model improves constantly;
But existing sealing material is in envrionment temperature comparatively relative superiority or inferiority, then greatly reduce its work-ing life, but when temperature is higher, make sealing material volumetric expansion, have a strong impact on its sealing effectiveness, bring huge potential safety hazard to production, so be badly in need of the resistant to elevated temperatures sealing material of a kind of energy.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, provide a kind of high temperature sealing material and preparation method thereof, not only intensity is high, resistance to corrosion and heat-resisting ability extremely strong, and the rub resistance ability on its surface improves greatly, reduce its wearing and tearing, increase its work-ing life, and preparation method is provided, method is simple, and cost is low, and production efficiency is high.
In order to solve above technical problem, the invention provides a kind of high temperature sealing material, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 70-72 part, styrene-butadiene rubber(SBR): 22-25 part, carbon black: 11-13 part, glycerol glycerinate: 5-7 part, high styrene resin: 15-18 part, promoting agent magnesium oxide: 2-4 part, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 5-8 part, SULPHUR POWDER: 1-3 part, triethyl citrate: 2-4 part, antioxidant 4010NA: 3-5 part, ceramics powder: 1-3 part, oxalic acid dioctyl ester: 3-6 part, zinc oxide: 2-6 part, ethyl chrysanthemate: 4-8 part, Vulcanization accelerator TMTD: 0.2-0.8 part, palm wax: 1-2 part,
Wherein the component of ceramics powder is counted by weight: kaolinite: 12-15 part, quartz: 1-3 part, clay: 20-22 part, bortz powder: 3-5 part, titanium dioxide: 1-3 part;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 2 hours at being heated to 900 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
The present invention also provides the preparation method of high temperature sealing material, and concrete preparation method is as follows:
Step (1): get the raw materials ready: take each component raw material by each component raw material percent mass proportioning: acrylic elastomer, styrene-butadiene rubber(SBR), carbon black, glycerol glycerinate, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid, SULPHUR POWDER, triethyl citrate, oxalic acid dioctyl ester, zinc oxide, high styrene resin and palm wax;
Step (2): plasticate: the raw material in step (1) is mixed and is placed in mill, under roll spacing 0.6-0.8mm, thin-pass 12-14 time, again roll spacing is put into 5-7mm, bottom sheet after roll-in 5-10min, wherein plasticating temperature: preliminary roller 59-62 DEG C, rear roller 55-58 DEG C;
Step (3): mixing: the sealing material processed through step (2) is placed in Banbury mixer, then antioxidant 4010NA, Vulcanization accelerator TMTD, promoting agent magnesium oxide, ceramics powder and ethyl chrysanthemate is added successively, discharge after mixing 3-5min, melting temperature is 50-58 DEG C;
Step (4): shaping: at pressure 23-25MPa, temperature 190-200 DEG C, shaping according to product requirement vulcanizer.
The technical scheme that the present invention limits further is:
Aforesaid high temperature sealing material, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 70 parts; styrene-butadiene rubber(SBR): 22 parts; carbon black: 11 parts; glycerol glycerinate: 5 parts, high styrene resin: 15 parts, promoting agent magnesium oxide: 2 parts; fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 5 parts; SULPHUR POWDER: 1 part, triethyl citrate: 2 parts, antioxidant 4010NA: 3 parts; ceramics powder: 1 part; oxalic acid dioctyl ester: 3 parts, zinc oxide: 2 parts, ethyl chrysanthemate: 4 parts; Vulcanization accelerator TMTD: 0.2 part, palm wax: 1 part;
Wherein the component of ceramics powder is counted by weight: kaolinite: 12 parts, quartz: 1 part, clay: 20 parts, bortz powder: 3 parts, titanium dioxide: 1 part;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
Aforesaid high temperature sealing material, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 72 parts; styrene-butadiene rubber(SBR): 25 parts; carbon black: 13 parts; glycerol glycerinate: 7 parts, high styrene resin: 18 parts, promoting agent magnesium oxide: 4 parts; fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts; SULPHUR POWDER: 3 parts, triethyl citrate: 4 parts, antioxidant 4010NA: 5 parts; ceramics powder: 3 parts; oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 8 parts; Vulcanization accelerator TMTD: 0.8 part, palm wax: 2 parts;
Wherein the component of ceramics powder is counted by weight: kaolinite: 15 parts, quartz: 3 parts, clay: 22 parts, bortz powder: 5 parts, titanium dioxide: 3 parts;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 2.5 hours at being heated to 910 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
Aforesaid high temperature sealing material, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 71 parts; styrene-butadiene rubber(SBR): 24 parts; carbon black: 12 parts; glycerol glycerinate: 6 parts, high styrene resin: 17 parts, promoting agent magnesium oxide: 3 parts; fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts; SULPHUR POWDER: 3 parts, triethyl citrate: 3 parts, antioxidant 4010NA: 4 parts; ceramics powder: 3 parts; oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 5 parts; Vulcanization accelerator TMTD: 0.6 part, palm wax: 2 parts;
Wherein the component of ceramics powder is counted by weight: kaolinite: 14 parts, quartz: 2 parts, clay: 21 parts, bortz powder: 4 parts, titanium dioxide: 2 parts;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
The invention has the beneficial effects as follows: sealing material not only intensity is high, resistance to corrosion and heat-resisting ability extremely strong, and the rub resistance ability on its surface improves greatly, reduce its wearing and tearing, increase its work-ing life, and preparation method is provided, method is simple, and cost is low, and working efficiency is high; Wherein in sealing material, add ceramics powder, the wear-resisting, high temperature resistant of sealing material and corrosion resistance nature can be increased, improve its work-ing life;
Styrene-butadiene rubber(SBR) itself has excellent elasticity, oil-proofness, media-resistant and resistance to fatigue, coordinate with acrylic elastomer and high styrene resin with the use of, heat-resisting, the ageing-resistant performance of goods can be made also to significantly improve; Add the burning-point that amount of retardant tetrachlorophthalic tetrachlorophthalic anhydrid can improve sealing material, having fire-retardant system can, mixedly with palm wax strengthen goods flexible resistance and tear strength, sealing material binding excellent performance, elasticity, flexible resistance and tear strength are high, oil resistant, heat-resisting, winter hardiness good, good seal performance, long service life.
Embodiment
embodiment 1
A kind of high temperature sealing material that the present embodiment provides, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 70 parts, styrene-butadiene rubber(SBR): 22 parts, carbon black: 11 parts, glycerol glycerinate: 5 parts, high styrene resin: 15 parts, promoting agent magnesium oxide: 2 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 5 parts, SULPHUR POWDER: 1 part, triethyl citrate: 2 parts, antioxidant 4010NA: 3 parts, ceramics powder: 1 part, oxalic acid dioctyl ester: 3 parts, zinc oxide: 2 parts, ethyl chrysanthemate: 4 parts, Vulcanization accelerator TMTD: 0.2 part, palm wax: 1 part,
Wherein the component of ceramics powder is counted by weight: kaolinite: 12 parts, quartz: 1 part, clay: 20 parts, bortz powder: 3 parts, titanium dioxide: 1 part;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
The present embodiment also provides the preparation method of high temperature sealing material, and concrete preparation method is as follows:
Step (1): get the raw materials ready: take each component raw material by each component raw material percent mass proportioning: acrylic elastomer, styrene-butadiene rubber(SBR), carbon black, glycerol glycerinate, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid, SULPHUR POWDER, triethyl citrate, oxalic acid dioctyl ester, zinc oxide, high styrene resin and palm wax;
Step (2): plasticate: the raw material in step (1) is mixed and is placed in mill, under roll spacing 0.6mm, thin-pass 12 times, then roll spacing is put into 5mm, bottom sheet after roll-in 5min, wherein plasticating temperature: preliminary roller 59 DEG C, 55 DEG C, rear roller;
Step (3): mixing: the sealing material processed through step (2) is placed in Banbury mixer, then adds antioxidant 4010NA, Vulcanization accelerator TMTD, promoting agent magnesium oxide, ceramics powder and ethyl chrysanthemate, discharge after mixing 3min successively, and melting temperature is 50 DEG C;
Step (4): shaping: at pressure 23MPa, at temperature 190 DEG C, shaping according to product requirement vulcanizer.
embodiment 2
A kind of high temperature sealing material that the present embodiment provides, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 72 parts, styrene-butadiene rubber(SBR): 25 parts, carbon black: 13 parts, glycerol glycerinate: 7 parts, high styrene resin: 18 parts, promoting agent magnesium oxide: 4 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts, SULPHUR POWDER: 3 parts, triethyl citrate: 4 parts, antioxidant 4010NA: 5 parts, ceramics powder: 3 parts, oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 8 parts, Vulcanization accelerator TMTD: 0.8 part, palm wax: 2 parts,
Wherein the component of ceramics powder is counted by weight: kaolinite: 15 parts, quartz: 3 parts, clay: 22 parts, bortz powder: 5 parts, titanium dioxide: 3 parts;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 2.5 hours at being heated to 910 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
The present embodiment also provides the preparation method of high temperature sealing material, and concrete preparation method is as follows:
Step (1): get the raw materials ready: take each component raw material by each component raw material percent mass proportioning: acrylic elastomer, styrene-butadiene rubber(SBR), carbon black, glycerol glycerinate, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid, SULPHUR POWDER, triethyl citrate, oxalic acid dioctyl ester, zinc oxide, high styrene resin and palm wax;
Step (2): plasticate: the raw material in step (1) is mixed and is placed in mill, under roll spacing 0.8mm, thin-pass 14 times, then roll spacing is put into 7mm, bottom sheet after roll-in 10min, wherein plasticating temperature: preliminary roller 62 DEG C, 58 DEG C, rear roller;
Step (3): mixing: the sealing material processed through step (2) is placed in Banbury mixer, then adds antioxidant 4010NA, Vulcanization accelerator TMTD, promoting agent magnesium oxide, ceramics powder and ethyl chrysanthemate, discharge after mixing 5min successively, and melting temperature is 58 DEG C;
Step (4): shaping: at pressure 25MPa, at temperature 200 DEG C, shaping according to product requirement vulcanizer.
embodiment 3
A kind of high temperature sealing material that the present embodiment provides, the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 71 parts, styrene-butadiene rubber(SBR): 24 parts, carbon black: 12 parts, glycerol glycerinate: 6 parts, high styrene resin: 17 parts, promoting agent magnesium oxide: 3 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts, SULPHUR POWDER: 3 parts, triethyl citrate: 3 parts, antioxidant 4010NA: 4 parts, ceramics powder: 3 parts, oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 5 parts, Vulcanization accelerator TMTD: 0.6 part, palm wax: 2 parts,
Wherein the component of ceramics powder is counted by weight: kaolinite: 14 parts, quartz: 2 parts, clay: 21 parts, bortz powder: 4 parts, titanium dioxide: 2 parts;
The preparation method of ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
The present embodiment also provides the preparation method of high temperature sealing material, and concrete preparation method is as follows:
Step (1): get the raw materials ready: take each component raw material by each component raw material percent mass proportioning: acrylic elastomer, styrene-butadiene rubber(SBR), carbon black, glycerol glycerinate, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid, SULPHUR POWDER, triethyl citrate, oxalic acid dioctyl ester, zinc oxide, high styrene resin and palm wax;
Step (2): plasticate: the raw material in step (1) is mixed and is placed in mill, under roll spacing 0.7mm, thin-pass 13 times, then roll spacing is put into 6mm, bottom sheet after roll-in 8min, wherein plasticating temperature: preliminary roller 60 DEG C, 57 DEG C, rear roller;
Step (3): mixing: the sealing material processed through step (2) is placed in Banbury mixer, then adds antioxidant 4010NA, Vulcanization accelerator TMTD, promoting agent magnesium oxide, ceramics powder and ethyl chrysanthemate, discharge after mixing 4min successively, and melting temperature is 55 DEG C;
Step (4): shaping: at pressure 24MPa, at temperature 195 DEG C, shaping according to product requirement vulcanizer.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (5)
1. a high temperature sealing material, it is characterized in that: the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 70-72 part, styrene-butadiene rubber(SBR): 22-25 part, carbon black: 11-13 part, glycerol glycerinate: 5-7 part, high styrene resin: 15-18 part, promoting agent magnesium oxide: 2-4 part, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 5-8 part, SULPHUR POWDER: 1-3 part, triethyl citrate: 2-4 part, antioxidant 4010NA: 3-5 part, ceramics powder: 1-3 part, oxalic acid dioctyl ester: 3-6 part, zinc oxide: 2-6 part, ethyl chrysanthemate: 4-8 part, Vulcanization accelerator TMTD: 0.2-0.8 part, palm wax: 1-2 part,
The component of wherein said ceramics powder is counted by weight: kaolinite: 12-15 part, quartz: 1-3 part, clay: 20-22 part, bortz powder: 3-5 part, titanium dioxide: 1-3 part;
The preparation method of described ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 2 hours at being heated to 900 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
2. high temperature sealing material according to claim 1, it is characterized in that: the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 70 parts, styrene-butadiene rubber(SBR): 22 parts, carbon black: 11 parts, glycerol glycerinate: 5 parts, high styrene resin: 15 parts, promoting agent magnesium oxide: 2 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 5 parts, SULPHUR POWDER: 1 part, triethyl citrate: 2 parts, antioxidant 4010NA: 3 parts, ceramics powder: 1 part, oxalic acid dioctyl ester: 3 parts, zinc oxide: 2 parts, ethyl chrysanthemate: 4 parts, Vulcanization accelerator TMTD: 0.2 part, palm wax: 1 part,
The component of wherein said ceramics powder is counted by weight: kaolinite: 12 parts, quartz: 1 part, clay: 20 parts, bortz powder: 3 parts, titanium dioxide: 1 part;
The preparation method of described ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
3. high temperature sealing material according to claim 1, it is characterized in that: the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 72 parts, styrene-butadiene rubber(SBR): 25 parts, carbon black: 13 parts, glycerol glycerinate: 7 parts, high styrene resin: 18 parts, promoting agent magnesium oxide: 4 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts, SULPHUR POWDER: 3 parts, triethyl citrate: 4 parts, antioxidant 4010NA: 5 parts, ceramics powder: 3 parts, oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 8 parts, Vulcanization accelerator TMTD: 0.8 part, palm wax: 2 parts,
The component of wherein said ceramics powder is counted by weight: kaolinite: 15 parts, quartz: 3 parts, clay: 22 parts, bortz powder: 5 parts, titanium dioxide: 3 parts;
The preparation method of described ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 2.5 hours at being heated to 910 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
4. high temperature sealing material according to claim 1, it is characterized in that: the component of this abrasive sealing materials is counted by weight: acrylic elastomer: 71 parts, styrene-butadiene rubber(SBR): 24 parts, carbon black: 12 parts, glycerol glycerinate: 6 parts, high styrene resin: 17 parts, promoting agent magnesium oxide: 3 parts, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid: 8 parts, SULPHUR POWDER: 3 parts, triethyl citrate: 3 parts, antioxidant 4010NA: 4 parts, ceramics powder: 3 parts, oxalic acid dioctyl ester: 6 parts, zinc oxide: 6 parts, ethyl chrysanthemate: 5 parts, Vulcanization accelerator TMTD: 0.6 part, palm wax: 2 parts,
The component of wherein said ceramics powder is counted by weight: kaolinite: 14 parts, quartz: 2 parts, clay: 21 parts, bortz powder: 4 parts, titanium dioxide: 2 parts;
The preparation method of described ceramics powder is: the mixing of kaolinite, quartz, clay, bortz powder and titanium dioxide sent in ball mill and pulverize, cross 100 mesh sieves, obtain powder particle A, powder particle A and water are uniformly mixed with the ratio of 3:2, stir, under helium atmosphere, calcine after 3 hours at being heated to 920 DEG C, air cooling, to room temperature, is then pulverized, cross 120 mesh sieves, can ceramics powder be obtained.
5. a preparation method for high temperature sealing material, is characterized in that, concrete preparation method is as follows:
Step (1): get the raw materials ready: take each component raw material by described each component raw material percent mass proportioning: acrylic elastomer, styrene-butadiene rubber(SBR), carbon black, glycerol glycerinate, fire retardant tetrachlorophthalic tetrachlorophthalic anhydrid, SULPHUR POWDER, triethyl citrate, oxalic acid dioctyl ester, zinc oxide, high styrene resin and palm wax;
Step (2): plasticate: the raw material in step (1) is mixed and is placed in mill, under roll spacing 0.6-0.8mm, thin-pass 12-14 time, again roll spacing is put into 5-7mm, bottom sheet after roll-in 5-10min, wherein plasticating temperature: preliminary roller 59-62 DEG C, rear roller 55-58 DEG C;
Step (3): mixing: the sealing material processed through step (2) is placed in Banbury mixer, then antioxidant 4010NA, Vulcanization accelerator TMTD, promoting agent magnesium oxide, ceramics powder and ethyl chrysanthemate is added successively, discharge after mixing 3-5min, melting temperature is 50-58 DEG C;
Step (4): shaping: at pressure 23-25MPa, temperature 190-200 DEG C, shaping according to product requirement vulcanizer.
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