CN105802230A - Silicone rubber sealing pad having low permanent compression set value and preparation method thereof - Google Patents
Silicone rubber sealing pad having low permanent compression set value and preparation method thereof Download PDFInfo
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- CN105802230A CN105802230A CN201610237001.7A CN201610237001A CN105802230A CN 105802230 A CN105802230 A CN 105802230A CN 201610237001 A CN201610237001 A CN 201610237001A CN 105802230 A CN105802230 A CN 105802230A
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- silicone rubber
- rubber
- compression set
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- 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
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- 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
- C08K2201/011—Nanostructured additives
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- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a silicone rubber sealing pad having low permanent compression set value and a preparation method thereof.The silicone rubber sealing pad is prepared from low phenyl silicone rubber, acrylate rubber, isoprene rubber, 4,4'-diamino biphenyl, praseodymium naphthenate, silicon calcium magnesium crystal whiskers, a accelerant DTDM, a accelerant CZ, a accelerant CPB, carbon black N774, carbon black N330, 1,1-bis(tert butyl peroxyl)-3,3,5-trimethyl-cyclohexane, nano palygorskite, cobalt naphthenate, lead silicate white, zinc stearate, vaseline, an antiager 4010 NA, an antiager 2246 and a modifier.The prepared silicone rubber sealing pad has good compressibility and resilience and small permanent compression set, does not produce permanent change when being exposed at higher temperature, can have original mechanical properties of rubber after being put back at the room temperature and meanwhile has excellent abrasion resistance, corrosion resistance, aging resistance and heat resistance and other properties.
Description
Technical field
The present invention relates to a kind of rubber gasket, be specifically related to a kind of low compression set silicone rubber seal gasket and
Its preparation method.
Background technology
Silicone rubber has prominent high and low temperature resistance, keeps good within the temperature range of-70 DEG C～+260 DEG C
Use elasticity, resistance to ozone, Weather-resistant, there are waterproof, fire-retardant, high temperature resistant, conduction, oil resistant etc. simultaneously
Premium properties, sealing gasket required in suitable for making heat engine structure, as sealed lining ring, valve pad, oil sealing (are applicable to
Aqueous medium) etc., special silicone rubber can make oil sealing.Along with science and technology and the fast development of industry, to silicon rubber
The performance requirement of glue encapsulant is more and more higher, and the silicone rubber seal gasket on existing market also exists the permanent change of compression
The shortcoming that shape is big, compression set amount reaches more than 30%, in use, the poor sealing performance of product,
It is easily caused product failure.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of low compression set silicone rubber is close
Packing and preparation method thereof.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of low compression set silicone rubber seal gasket, is made up of the raw material of following weight portion: low phenyl silicon rubber
Glue 34-49, acrylate rubber 26-44, isoprene rubber 14-23,4,4'-benzidine 4-6, ring
Alkanoic acid praseodymium 2-4, silicon-calcium-magnesium whisker 12-18, diphenylguanidine TDM 2-3, accelerant CZ 1-2, accelerant C PB
0.5-1, white carbon black N774 18-24, white carbon black N330 15-25,1,1-bis(t-butylperoxy)-3,3,5-three
Hexahydrotoluene 3-5, nanometer palygorskite 14-22, ethylene glycol diacrylate 4-7, basic lead silicate 3-4,
Zinc stearate 2-3, vaseline 5-7, antioxidant 4010NA 1-2, antioxidant 2246 1-2, modifying agent 15-20；
The preparation method of described modifying agent is as follows: (1) takes the raw material of following weight portion: sea ballstone 16-24, pin
Shape Jiao 10-15, polymerization ferrophosphorus powder 12-17, nano barium titanate aluminum 8-16, sodium metnylene bis-naphthalene sulfonate 3-4,
Dioctylis sulfosuccinas natricus 2-3, cetearyl glucoside 1.5-2.5, polypropylene glycol 200 5-10, three
N-butylamine 4-8, octyl dodecanol Cera Flava acid esters 3-5；(2) take sea ballstone, needle coke mixing, pulverize, mistake
Mixing homogeneously with polymerization ferrophosphorus powder, nano barium titanate aluminum after 100-150 mesh sieve, 40-50% is made in the stirring that then adds water
Suspension, add sodium metnylene bis-naphthalene sulfonate, dioctylis sulfosuccinas natricus and cetearyl glucose
Glycosides, heating in water bath is to 60-80 DEG C, and 1500-2500r/min high-speed stirred 10-15min, filtration, after drying
Add polypropylene glycol 200, tri-n-butylamine and octyl dodecanol Cera Flava acid esters, 1000-1500r/min high-speed stirred
5-10min, dries, and pulverizes, and crosses 100-150 mesh sieve.
The preparation method of a kind of low compression set silicone rubber seal gasket, comprises the following steps:
(1) by low-phenyl silicone rubber, acrylate rubber, isoprene rubber, basic lead silicate, zinc stearate,
Vaseline adds in mixing roll, and adjustment roller temperature is to 35-45 DEG C, and roll spacing, to 3-4mm, adds after mixing 6-9min
Silicon-calcium-magnesium whisker, 4,4'-benzidine, aphthenic acids praseodymium, 1,1-bis(t-butylperoxy)-3,3,5-front three
Butylcyclohexane, nanometer palygorskite, ethylene glycol diacrylate, adjust roller temperature to 40-50 DEG C, roll spacing to 2-3mm,
After mixing 4-7min add surplus stock, adjust roller temperature to 50-60 DEG C, roll spacing to 1-2mm, mixing 3-6min,
Discharging, parks 18-36h；
(2) sulfidization molding, sulfide stress are carried out in the above-mentioned sizing material mixed being sent into vulcanizing press
1.5-2.5MPa, conditions of vulcanization (135-155) DEG C × (20-30) min, post-cure condition
(250-270)℃×(10-15)h；
(3) rubber of above-mentioned sulfuration is taken out finishing burr, finished product can be become through passer.
Above-mentioned modifying agent uses sea ballstone, needle coke, polymerization ferrophosphorus powder, four kinds of inorganic raw materials of nano barium titanate aluminum
Compound use, can improve the high temperature high voltage resistant of sealing gasket, heat stability, anticorrosive property, wearability and resist
Thermal shock resistance, use simultaneously sodium metnylene bis-naphthalene sulfonate, dioctylis sulfosuccinas natricus, cetearyl glucoside,
Above-mentioned inorganic raw material is carried out at twice modification by polypropylene glycol 200, tri-n-butylamine, octyl dodecanol Cera Flava acid esters
Reason, can significantly improve its interface performance, improves the compatibility of itself and polymer matrix, thus improves it and strengthen
Performance.
Beneficial effects of the present invention:
The present invention uses phenyl siloxane rubber, acrylate rubber, three kinds of rubber combined uses of isoprene rubber, and makes
With 1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane, ethylene glycol diacrylate, alkali formula silicon
Lead plumbate, zinc stearate cooperate as mixing vulcanizing system, and it is permanent that prepared vulcanizate has relatively low compression
Deformation, the composition such as the silicon-calcium-magnesium whisker that simultaneously adds, nanometer palygorskite, the stretching of silicone rubber can be significantly improved
Intensity and elongation at break.The silicone rubber seal gasket that the present invention prepares has compressibility and resilience is good, and compression is forever
Deformation is little for a long time, is exposed under higher temperature and permanent change will not occur, and after returning to room temperature placement, rubber can
Regain its original mechanical performance, there is excellent wearability, corrosion resistance, resistance to ag(e)ing and heat-resisting simultaneously
The performances such as property.
Detailed description of the invention
A kind of low compression set silicone rubber seal gasket, is made up of the raw material of following weight (kg): low phenyl
Silicone rubber 43, acrylate rubber 37, isoprene rubber 19,4,4'-benzidine 5, aphthenic acids praseodymium 3,
Silicon-calcium-magnesium whisker 14, diphenylguanidine TDM 2.5, accelerant CZ 1.5, accelerant C PB 0.8, white carbon black N774
22, white carbon black N330 20,1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 4, nanometer slope thread
Stone 17, ethylene glycol diacrylate 5, basic lead silicate 3, zinc stearate 2, vaseline 6, age resistor
4010NA 1, antioxidant 2246 2, modifying agent 17；
The preparation method of described modifying agent is as follows: (1) takes the raw material of following weight (kg): sea ballstone 18,
Needle coke 11, polymerization ferrophosphorus powder 14, nano barium titanate aluminum 10, sodium metnylene bis-naphthalene sulfonate 3.5, sulfo group fourth
Diacid sodium dioctyl ester 2, cetearyl glucoside 2, polypropylene glycol 200 7, tri-n-butylamine 6, octyl group ten
Glycol Cera Flava acid esters 4；(2) take sea ballstone, needle coke mixing, pulverize, cross after 150 mesh sieves be polymerized ferrophosphorus
Powder, nano barium titanate aluminum mix homogeneously, the stirring that then adds water is made the suspension of 50%, is added methylene dinaphthalene
Sodium sulfonate, dioctylis sulfosuccinas natricus and cetearyl glucoside, heating in water bath to 80 DEG C,
2500r/min high-speed stirred 10min, filters, and adds polypropylene glycol 200, tri-n-butylamine and octyl group after drying
Lauryl alcohol Cera Flava acid esters, 1000r/min high-speed stirred 8min, dry, pulverize, cross 100-150 mesh sieve.
The preparation method of a kind of low compression set silicone rubber seal gasket, comprises the following steps:
(1) by low-phenyl silicone rubber, acrylate rubber, isoprene rubber, basic lead silicate, zinc stearate,
Vaseline adds in mixing roll, and adjustment roller temperature is to 35-45 DEG C, and roll spacing, to 3-4mm, adds after mixing 6-9min
Silicon-calcium-magnesium whisker, 4,4'-benzidine, aphthenic acids praseodymium, 1,1-bis(t-butylperoxy)-3,3,5-front three
Butylcyclohexane, nanometer palygorskite, ethylene glycol diacrylate, adjust roller temperature to 40-50 DEG C, roll spacing to 2-3mm,
After mixing 4-7min add surplus stock, adjust roller temperature to 50-60 DEG C, roll spacing to 1-2mm, mixing 3-6min,
Discharging, parks 18-36h；
(2) sulfidization molding, sulfide stress are carried out in the above-mentioned sizing material mixed being sent into vulcanizing press
1.5-2.5MPa, conditions of vulcanization (135-155) DEG C × (20-30) min, post-cure condition
(250-270)℃×(10-15)h；
(3) rubber of above-mentioned sulfuration is taken out finishing burr, finished product can be become through passer.
The main performance testing result of the sealing gasket that above-described embodiment prepares is as shown in the table.
Claims (2)
- null1. a low compression set silicone rubber seal gasket，It is characterized in that，It is made up of the raw material of following weight portion: low-phenyl silicone rubber 34-49、Acrylate rubber 26-44、Isoprene rubber 14-23、4,4'-benzidine 4-6、Aphthenic acids praseodymium 2-4、Silicon-calcium-magnesium whisker 12-18、Diphenylguanidine TDM 2-3、Accelerant CZ 1-2、Accelerant C PB 0.5-1、White carbon black N774 18-24、White carbon black N330 15-25、1,1-bis(t-butylperoxy)-3,3,5-trimethyl-cyclohexane 3-5、Nanometer palygorskite 14-22、Ethylene glycol diacrylate 4-7、Basic lead silicate 3-4、Zinc stearate 2-3、Vaseline 5-7、Antioxidant 4010NA 1-2、Antioxidant 2246 1-2、Modifying agent 15-20；The preparation method of described modifying agent is as follows: (1) takes the raw material of following weight portion: sea ballstone 16-24, needle coke 10-15, polymerization ferrophosphorus powder 12-17, nano barium titanate aluminum 8-16, sodium metnylene bis-naphthalene sulfonate 3-4, dioctylis sulfosuccinas natricus 2-3, cetearyl glucoside 1.5-2.5, polypropylene glycol 200 5-10, tri-n-butylamine 4-8, octyl dodecanol Cera Flava acid esters 3-5；(2) sea ballstone, needle coke mixing are taken, pulverize, mix homogeneously with polymerization ferrophosphorus powder, nano barium titanate aluminum after crossing 100-150 mesh sieve, then the suspension of 40-50% is made in the stirring that adds water, add sodium metnylene bis-naphthalene sulfonate, dioctylis sulfosuccinas natricus and cetearyl glucoside, heating in water bath is to 60-80 DEG C, 1500-2500r/min high-speed stirred 10-15min, filter, add polypropylene glycol 200, tri-n-butylamine and octyl dodecanol Cera Flava acid esters, 1000-1500r/min high-speed stirred 5-10min after drying, dry, pulverize, cross 100-150 mesh sieve.
- The preparation method of low compression set silicone rubber seal gasket the most according to claim 1, it is characterised in that comprise the following steps:(1) by low-phenyl silicone rubber, acrylate rubber, isoprene rubber, basic lead silicate, zinc stearate, vaseline adds in mixing roll, adjust roller temperature to 35-45 DEG C, roll spacing is to 3-4mm, silicon-calcium-magnesium whisker is added after mixing 6-9min, 4, 4'-benzidine, aphthenic acids praseodymium, 1, 1-bis(t-butylperoxy)-3, 3, 5-trimethyl-cyclohexane, nanometer palygorskite, ethylene glycol diacrylate, adjust roller temperature to 40-50 DEG C, roll spacing is to 2-3mm, surplus stock is added after mixing 4-7min, adjust roller temperature to 50-60 DEG C, roll spacing is to 1-2mm, mixing 3-6min, discharging, park 18-36h；(2) sulfidization molding, sulfide stress 1.5-2.5MPa, conditions of vulcanization (135-155) DEG C × (20-30) min, post-cure condition (250-270) DEG C × (10-15) h are carried out in the above-mentioned sizing material mixed being sent into vulcanizing press；(3) rubber of above-mentioned sulfuration is taken out finishing burr, finished product can be become through passer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237001.7A CN105802230A (en) | 2016-04-14 | 2016-04-14 | Silicone rubber sealing pad having low permanent compression set value and preparation method thereof |
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| CN201610237001.7A CN105802230A (en) | 2016-04-14 | 2016-04-14 | Silicone rubber sealing pad having low permanent compression set value and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566011A (en) * | 2016-10-28 | 2017-04-19 | 无锡市永兴金属软管有限公司 | Antibacterial hose lining material for drink food hose |
| CN106947255A (en) * | 2017-04-06 | 2017-07-14 | 安徽三鑫电缆材料有限公司 | A kind of good silicon rubber of waterproof resilience |
| CN107312283A (en) * | 2017-06-29 | 2017-11-03 | 霍山汇能汽车零部件制造有限公司 | A kind of automobile engine cooler escape pipe gasket material and preparation method thereof |
| CN110185713A (en) * | 2019-07-10 | 2019-08-30 | 贝德科技有限公司 | A kind of Diesel engine pump check shaft coupling |
| CN112300452A (en) * | 2020-11-06 | 2021-02-02 | 中国人民解放军陆军装甲兵学院士官学校 | High-performance composite rubber material for track skim coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408853A (en) * | 2013-07-01 | 2013-11-27 | 芜湖市银鸿液压件有限公司 | High-strength tear-resistant rubber sealing gasket and preparation method thereof |
| CN104292798A (en) * | 2014-09-25 | 2015-01-21 | 安徽蓝翔电器成套设备有限公司 | Transformer sealing pad and preparation method thereof |
| CN104403326A (en) * | 2014-11-18 | 2015-03-11 | 滁州君越高分子新材料有限公司 | Silicone rubber with low compression deformation rate |
-
2016
- 2016-04-14 CN CN201610237001.7A patent/CN105802230A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408853A (en) * | 2013-07-01 | 2013-11-27 | 芜湖市银鸿液压件有限公司 | High-strength tear-resistant rubber sealing gasket and preparation method thereof |
| CN104292798A (en) * | 2014-09-25 | 2015-01-21 | 安徽蓝翔电器成套设备有限公司 | Transformer sealing pad and preparation method thereof |
| CN104403326A (en) * | 2014-11-18 | 2015-03-11 | 滁州君越高分子新材料有限公司 | Silicone rubber with low compression deformation rate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566011A (en) * | 2016-10-28 | 2017-04-19 | 无锡市永兴金属软管有限公司 | Antibacterial hose lining material for drink food hose |
| CN106947255A (en) * | 2017-04-06 | 2017-07-14 | 安徽三鑫电缆材料有限公司 | A kind of good silicon rubber of waterproof resilience |
| CN107312283A (en) * | 2017-06-29 | 2017-11-03 | 霍山汇能汽车零部件制造有限公司 | A kind of automobile engine cooler escape pipe gasket material and preparation method thereof |
| CN110185713A (en) * | 2019-07-10 | 2019-08-30 | 贝德科技有限公司 | A kind of Diesel engine pump check shaft coupling |
| CN112300452A (en) * | 2020-11-06 | 2021-02-02 | 中国人民解放军陆军装甲兵学院士官学校 | High-performance composite rubber material for track skim coating and preparation method thereof |
| CN112300452B (en) * | 2020-11-06 | 2021-05-18 | 中国人民解放军陆军装甲兵学院士官学校 | High-performance composite rubber material for track skim coating and preparation method thereof |
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Application publication date: 20160727 |
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