CN103360770B - high temperature vulcanized modified silicon rubber and production method thereof - Google Patents
high temperature vulcanized modified silicon rubber and production method thereof Download PDFInfo
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Abstract
The invention discloses a kind of high temperature vulcanized modified silicon rubber, it is made primarily of following base material: 110-1 methyl vinyl silicone rubber: 110-2 methyl vinyl silicone rubber: the weight ratio of 110-3 methyl vinyl silicone rubber is 1 ~ 2:2 ~ 5:1 ~ 3.Modified silicon rubber of the present invention also has good UV resistant and resistance to acid attack performance while having all excellent properties of high-temperature silicon disulfide rubber.According to IEC? 62217 standards, silicon rubber of the present invention is through UV-light (xenon arc method) after aging 1500 hours, and material is intact; Silicon rubber of the present invention is immersed in the salpeter solution of 65% after 45 minutes, and material is intact.
Description
Technical field
The present invention relates to polymeric material field, is a kind of high temperature vulcanized modified silicon rubber and production method thereof specifically.
Background technology
Insulator is the component that in electrical network, consumption is huge, and its quality good or not decides the safe and reliable of operation of power networks.Along with the rise and development of material technology, insulator kind also obtains prosperity, and different by material, insulator is divided into porcelain insulator, glass insulator, composite insulator and hybrid insulator.Silicon rubber is widely used on insulator because having excellent thermotolerance, winter hardiness, dielectricity, resistance to ozone, hydrophobic nature and resistance to atmospheric aging, makes outer insulating material.
With world economy industrialization, the refrigeration agent of chloride and bromine, whipping agent, medical agent use in a large number, havoc earth's ozone layer, Ozone hole is there is in highlands, ultraviolet directly invades, bring harm to productive life, equally also propose new test to the insulator operating in highlands.But in the market there are no corrosion-resistant and can effectively prevent or resist the silastic material of ultraviolet light erodes.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of high temperature vulcanized modified silicon rubber and production method thereof of UV resistant resistance to acid attack.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of high temperature vulcanized modified silicon rubber, makes: 110-1 methyl vinyl silicone rubber: 110-2 methyl vinyl silicone rubber primarily of following base material: the weight ratio of 110-3 methyl vinyl silicone rubber is 1 ~ 2:2 ~ 5:1 ~ 3.
The molecular weight of described 110-1 methyl vinyl silicone rubber, 110-2 methyl vinyl silicone rubber, 110-3 methyl vinyl silicone rubber is all more than 600,000.
Described high temperature vulcanized modified silicon rubber also comprises following raw material: fumed silica, fine aluminum hydroxide powder, γ-trifluoro propyl methyl polysiloxane, silicone oil, silane, look rubber master batch, zinc oxide, trolamine and two two or five vulcanizing agents; Wherein,
The addition of fumed silica is 30 ~ 35% of base material gross weight; The addition of fine aluminum hydroxide powder is 110 ~ 115% of base material gross weight; The addition of γ-trifluoro propyl methyl polysiloxane is 3 ~ 4% of base material gross weight; The addition of silicone oil is 12% of base material gross weight; The addition of silane is 2.03% of base material gross weight; The addition of zinc oxide is 4 ~ 7% of base material gross weight; The addition of trolamine is 0.6 ~ 0.9% of base material gross weight; The addition of two two or five vulcanizing agents is 1 ~ 2% of base material gross weight.
The production method of above-mentioned high temperature vulcanized modified silicon rubber, the method comprises the steps:
1) first require to take each base material and raw material according to above-mentioned high temperature vulcanized modified silicon rubber; Fumed silica and fine aluminum hydroxide powder are divided into two parts respectively, for subsequent use;
2) three kinds of methyl vinyl silicone rubbers are added Banbury mixer by banburying: under normal temperature and pressure, banburying 2 ~ 4 minutes, and three kinds of methyl vinyl silicone rubbers are mixed; Then load weighted a fumed silica, a fine aluminum hydroxide powder and each specification silane normal pressure banburying 5 ~ 7 minutes is added; Finally remaining a fumed silica, a fine aluminum hydroxide powder and each specification silicone oil, γ-trifluoro propyl methyl polysiloxane, zinc oxide, trolamine and look rubber master batch order are added, normal pressure banburying 8 ~ 10 minutes, then banburying 8 ~ 10 minutes under 0.6MPa pressure, takes out rubber unvulcanizate;
3) vacuum kneading: the rubber unvulcanizate entirety after banburying is put into kneader, each rubber unvulcanizate weight of mediating is no more than 120kg; Open vaccum-pumping equipment, make kneader vacuum tightness be not more than-0.06MPa, under negative pressure airtight kneading 110 minutes, control kneader temperature and be not more than 120 DEG C;
4) open refining: the rubber unvulcanizate taken out from kneader, then stripping and slicing segmentation, then carry out first time thin-pass on a mill until and beat roller;
5) park and open refining after parking: the rubber unvulcanizate obtained after step 4) being opened refining is placed on sizing material frame and parks 40 ~ 50 hours, then taking off and carry out second time thin-pass on a mill until and beat roller;
6) park and park after vulcanization: the rubber unvulcanizate after second time thin-pass is placed on sizing material frame and parks 20 ~ 25 hours, then taking off thin-pass on a mill until and add two two or five vulcanizing agents, add sulphur process thin-pass and be no less than 3 times, till range estimation vulcanizing agent is uniformly dispersed; Roller spacing 5mm, adds sulphur process roller temperature and is not more than 50 DEG C;
7) park and park rear back mixing: adding the rubber unvulcanizate after sulphur and be placed on sizing material frame and park 20 ~ 25 hours, then thin-pass back mixing is on a mill until taken off, bright and clean, smooth, the bubble-free of range estimation rubber unvulcanizate then back mixing completes, roller spacing 5mm, and back mixing process roller temperature is not more than 50 DEG C; Namely described high temperature vulcanized modified silicon rubber is obtained.
Beneficial effect: compared with prior art, tool has the following advantages in the present invention: also there is good UV resistant and resistance to acid attack performance while there is all excellent properties of high-temperature silicon disulfide rubber.According to IEC 62217 standard, silicon rubber of the present invention is through UV-light (xenon arc method) after aging 1500 hours, and material is intact; Silicon rubber of the present invention is immersed in the salpeter solution of 65% after 45 minutes, and material is intact.
Embodiment
According to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, the concrete content described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1: a kind of high temperature vulcanized modified silicon rubber, comprise following base material and other raw materials, wherein base material comprises 110-1,110-2,110-3; The weight ratio of above-mentioned 110-1:110-2:110-3 is 1:3:2.The molecular weight of 110-1,110-2,110-3 is all more than 600,000.110-1,110-2,110-3 are three kinds of specifications of methyl vinyl silicone rubber.
Other raw materials comprise: fumed silica, fine aluminum hydroxide powder, γ-trifluoro propyl methyl polysiloxane, silicone oil, silane, look rubber master batch, zinc oxide, trolamine and two two or five vulcanizing agents; Wherein,
The addition of fumed silica is 35% of base material gross weight; The high-specific surface area fumed silica mM-5 model of Cabot Co., Ltd of U.S. import that what described fumed silica adopted is, then be sprayed on above-mentioned fumed silica with hexamethyldisilazane, stir, the most of hydroxyl on fumed silica surface so just can be made to change front three siloxanes into.
The addition of fine aluminum hydroxide powder is 115% of base material gross weight; Described fine aluminum hydroxide powder is nano level and at nano level fine aluminum hydroxide powder surface sprinkling dimethyl silicone oil.
The addition of γ-trifluoro propyl methyl polysiloxane is 3.5% of base material gross weight; The molecular weight of described γ-trifluoro propyl methyl polysiloxane is about 550,000; Add γ-trifluoro propyl methyl polysiloxane and can improve high temperature vulcanized modified silicon rubber acid resistance.
The addition of silicone oil is 12% of base material gross weight; Described silicone oil comprises hydroxy silicon oil, vinyl silicone oil, containing hydrogen silicone oil and dimethyl silicone oil, and wherein the weight ratio of hydroxy silicon oil, vinyl silicone oil, containing hydrogen silicone oil and dimethyl silicone oil is 5:1:1:5.
The addition of silane is 2.03% of base material gross weight; Described silane comprises KH-560[γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane], A-151[vinyltriethoxysilane], DL-602 tri-kinds of specifications; Wherein the weight ratio of KH-560, A-151, DL-602 is 0.3:1.33:0.4.
The addition of zinc oxide is 5% of base material gross weight;
The addition of trolamine is 0.89% of base material gross weight;
The addition of two two or five vulcanizing agents is 1.15% of base material gross weight.
The addition of described look rubber master batch is 1.35% of base material gross weight; It is a kind ofly carrier with styrene-butadiene rubber(SBR) and adds the look rubber master batch of ferric oxide red colorant and ultraviolet additive UV-531 in the carrier.Ferric oxide red colorant is 1% of base material gross weight; The addition of ultraviolet additive UV-531 is 0.15% of styrene-butadiene rubber(SBR) vehicle weight, improves UV resistant performance.
The production method of above-mentioned high temperature vulcanized modified silicon rubber, the method comprises the steps:
1) first require to take each base material and raw material according to above-mentioned high temperature vulcanized modified silicon rubber; Fumed silica and fine aluminum hydroxide powder are divided into two parts respectively, for subsequent use;
2) banburying: under normal temperature and pressure, adds Banbury mixer by the methyl vinyl silicone rubber matrix of three kinds of specifications, about 3 minutes of banburying, and its each specification base rubber is mixed; Then load weighted a fumed silica, a fine aluminum hydroxide powder and each specification silane normal pressure banburying 6 minutes is added; Finally remaining a fumed silica, a fine aluminum hydroxide powder and each specification silicone oil, γ-trifluoro propyl methyl polysiloxane, zinc oxide, trolamine and look rubber master batch order are added, normal pressure banburying 10 minutes, then banburying 8 minutes under 0.6MPa pressure, takes out rubber unvulcanizate;
2) vacuum kneading: the rubber unvulcanizate entirety after banburying is put into kneader, each rubber unvulcanizate weight of mediating is no more than 120kg; Open vaccum-pumping equipment, make kneader vacuum tightness be not more than-0.06MPa, under negative pressure airtight kneading 110 minutes, control kneader temperature and be not more than 120 DEG C;
3) open refining: the rubber unvulcanizate taken out from kneader, by every block 12kg stripping and slicing segmentation, thin-pass also beats roller 1 time on a mill until, and roller spacing arranges 15mm, opens refining process roller temperature and is not more than 50 DEG C;
4) park and open refining after parking: rubber unvulcanizate thin-pass being beaten roller is placed on sizing material frame parks 48 hours, then take off thin-pass 3 times beat roller, every roller 12kg, roller spacing 8mm on a mill until, thin-pass process roller temperature is not more than 50 DEG C;
5) park and park after vulcanization: being placed on sizing material frame through the rubber unvulcanizate of secondary thin-pass and parking 24 hours, then take off thin-pass on a mill until and add vulcanizing agent, add sulphur process thin-pass and be no less than 3 times, till range estimation vulcanizing agent is uniformly dispersed; Roller spacing 5mm, adds sulphur process roller temperature and is not more than 50 DEG C;
6) park and park rear back mixing: adding the rubber unvulcanizate after sulphur and be placed on sizing material frame and park 24 hours, then thin-pass back mixing is on a mill until taken off, bright and clean, smooth, the bubble-free of range estimation rubber unvulcanizate then back mixing completes, roller spacing 5mm, and back mixing process roller temperature is not more than 50 DEG C; Sizing material after back mixing was finished in 12 hours.
After testing, the high temperature vulcanized modified silicon rubber performance of the present embodiment is as shown in the table:
| Project | Data | Project | Data |
| Volume specific resistance (Ω .m) | >10 12 | Anti creepage trace (level) | AC1A4.5 |
| DC breakdown intensity kV/mm | >35 | Flammability test | FV-0 level |
| Alternating current breakdown intensity kV/mm | >20 | Hydrophobic nature | HC1 |
| Tensile strength MPa | >4.5 | Hydrophobic nature is moved | HC1 |
| Machinery tearing strength kN/m | >10 | Hydrophobicity recovery | HC1 |
Not only meet national standard requirement completely by the high temperature vulcanized modified silicon rubber of the present invention's preparation and production and there are the excellent electromechanical properties of upper table, and through UV-light (xenon arc method) after aging 1500 hours material intact, to be immersed in the salpeter solution of 65% material after 45 minutes intact, there is excellent UV resistant and resistance to acid attack performance.
Embodiment 2 to embodiment 4, substantially the same manner as Example 1, difference is the formula of high temperature vulcanized modified silicon rubber, specifically asks for an interview table 3:
In embodiment 2, three kinds of specification 110-1 in methyl vinyl silicone rubber, the weight ratio of 110-2,110-3 are 1:2:2.
In embodiment 3, three kinds of specification 110-1 in methyl vinyl silicone rubber, the weight ratio of 110-2,110-3 are 2:5:3.
In embodiment 4, three kinds of specification 110-1 in methyl vinyl silicone rubber, the weight ratio of 110-2,110-3 are 1:3:1.
Claims (3)
1. a high temperature vulcanized modified silicon rubber, is characterized in that, makes: 110-1 methyl vinyl silicone rubber: 110-2 methyl vinyl silicone rubber: the weight ratio of 110-3 methyl vinyl silicone rubber is 1 ~ 2:2 ~ 5:1 ~ 3 primarily of following base material and other raw materials; The molecular weight of described 110-1 methyl vinyl silicone rubber, 110-2 methyl vinyl silicone rubber, 110-3 methyl vinyl silicone rubber is all more than 600,000;
Other raw materials comprise: fumed silica, fine aluminum hydroxide powder, γ-trifluoro propyl methyl polysiloxane, silicone oil, silane, look rubber master batch, zinc oxide, trolamine and two two or five vulcanizing agents; Wherein,
The addition of fumed silica is 30 ~ 35% of base material gross weight; The addition of fine aluminum hydroxide powder is 110 ~ 115% of base material gross weight; The addition of γ-trifluoro propyl methyl polysiloxane is 3 ~ 4% of base material gross weight; The addition of silicone oil is 12% of base material gross weight; The addition of silane is 2.03% of base material gross weight; The addition of zinc oxide is 4 ~ 7% of base material gross weight; The addition of trolamine is 0.6 ~ 0.9% of base material gross weight; The addition of two two or five vulcanizing agents is 1 ~ 2% of base material gross weight; The addition of look rubber master batch is 1 ~ 1.5% of base material gross weight;
The molecular weight of described γ-trifluoro propyl methyl polysiloxane is 550,000;
Described fine aluminum hydroxide powder is nano level fine aluminum hydroxide powder;
Described silicone oil comprises hydroxy silicon oil, vinyl silicone oil, containing hydrogen silicone oil and dimethyl silicone oil, and wherein the weight ratio of hydroxy silicon oil, vinyl silicone oil, containing hydrogen silicone oil and dimethyl silicone oil is 5:1:1:5;
Described silane comprises KH-560, A-151, DL-602; Wherein the weight ratio of KH-560, A-151, DL-602 is 0.3:1.33:0.4;
Described look rubber master batch is a kind ofly carrier with styrene-butadiene rubber(SBR) and adds the look rubber master batch of ferric oxide red colorant and ultraviolet additive in the carrier.
2. high temperature vulcanized modified silicon rubber according to claim 1, is characterized in that, described fumed silica sprays hexamethyldisilazane.
3. the production method of high temperature vulcanized modified silicon rubber according to claim 1, it is characterized in that, the method comprises the steps:
1) first require to take each base material and raw material according to above-mentioned high temperature vulcanized modified silicon rubber; Fumed silica and fine aluminum hydroxide powder are divided into two parts respectively, for subsequent use;
2) three kinds of methyl vinyl silicone rubbers are added Banbury mixer by banburying: under normal temperature and pressure, banburying 2 ~ 4 minutes, and three kinds of methyl vinyl silicone rubbers are mixed; Then load weighted a fumed silica, a fine aluminum hydroxide powder and each specification silane normal pressure banburying 5 ~ 7 minutes is added; Finally remaining a fumed silica, a fine aluminum hydroxide powder and each specification silicone oil, γ-trifluoro propyl methyl polysiloxane, zinc oxide, trolamine and look rubber master batch order are added, normal pressure banburying 8 ~ 10 minutes, then banburying 8 ~ 10 minutes under 0.6MPa pressure, takes out rubber unvulcanizate;
3) vacuum kneading: the rubber unvulcanizate entirety after banburying is put into kneader, each rubber unvulcanizate weight of mediating is no more than 120kg; Open vaccum-pumping equipment, make kneader vacuum tightness be not more than-0.06MPa, under negative pressure airtight kneading 110 minutes, control kneader temperature and be not more than 120 DEG C;
4) open refining: the rubber unvulcanizate taken out from kneader, then stripping and slicing segmentation, then carry out first time thin-pass on a mill until and beat roller;
5) park and open refining after parking: the rubber unvulcanizate obtained after step 4) being opened refining is placed on sizing material frame and parks 40 ~ 50 hours, then taking off and carry out second time thin-pass on a mill until and beat roller;
6) park and park after vulcanization: the rubber unvulcanizate after second time thin-pass is placed on sizing material frame and parks 20 ~ 25 hours, then taking off thin-pass on a mill until and add two two or five vulcanizing agents, add sulphur process thin-pass and be no less than 3 times, till range estimation vulcanizing agent is uniformly dispersed; Roller spacing 5mm, adds sulphur process roller temperature and is not more than 50 DEG C;
7) park and park rear back mixing: adding the rubber unvulcanizate after sulphur and be placed on sizing material frame and park 20 ~ 25 hours, then thin-pass back mixing is on a mill until taken off, bright and clean, smooth, the bubble-free of range estimation rubber unvulcanizate then back mixing completes, roller spacing 5mm, and back mixing process roller temperature is not more than 50 DEG C; Namely described high temperature vulcanized modified silicon rubber is obtained.
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| CN104559188A (en) * | 2015-02-09 | 2015-04-29 | 河北润志电气设备有限公司 | Formula of electrically insulating material soft silicone rubber and preparation method |
| CN111253755A (en) * | 2019-12-30 | 2020-06-09 | 江东金具设备有限公司 | High-mechanical-property insulating silicone rubber material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654558A (en) * | 2008-09-19 | 2010-02-24 | 镇江东辰新材料有限公司 | Insulator silicon rubber and method for preparing same |
| CN102070907A (en) * | 2010-12-16 | 2011-05-25 | 平高集团有限公司 | Silicone rubber for composite insulator and preparation method thereof |
| CN102127301A (en) * | 2011-01-24 | 2011-07-20 | 广州市迈克林电力有限公司 | Light ageing resistant blend for composite insulator and preparation method thereof |
| CN102311646A (en) * | 2011-09-07 | 2012-01-11 | 山东省垦利县新型电力器材厂 | Material preparation of organic composite insulator composite coat and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654558A (en) * | 2008-09-19 | 2010-02-24 | 镇江东辰新材料有限公司 | Insulator silicon rubber and method for preparing same |
| CN102070907A (en) * | 2010-12-16 | 2011-05-25 | 平高集团有限公司 | Silicone rubber for composite insulator and preparation method thereof |
| CN102127301A (en) * | 2011-01-24 | 2011-07-20 | 广州市迈克林电力有限公司 | Light ageing resistant blend for composite insulator and preparation method thereof |
| CN102311646A (en) * | 2011-09-07 | 2012-01-11 | 山东省垦利县新型电力器材厂 | Material preparation of organic composite insulator composite coat and preparation method thereof |
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