CN109280359A - A kind of preparation method of resistance to oxidation high intensity capacitor sealing ring - Google Patents
A kind of preparation method of resistance to oxidation high intensity capacitor sealing ring Download PDFInfo
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- CN109280359A CN109280359A CN201811104058.5A CN201811104058A CN109280359A CN 109280359 A CN109280359 A CN 109280359A CN 201811104058 A CN201811104058 A CN 201811104058A CN 109280359 A CN109280359 A CN 109280359A
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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Abstract
The present invention relates to a kind of preparation methods of resistance to oxidation high intensity capacitor sealing ring, belong to rubber composite material technical field.The present invention is using montmorillonite as substrate, montmorillonite microcosmic surface is modified by the way that hydrochloric acid is added, make the potassium in montmorillonite, calcium, sodium and other digestion of metallic ion, destroy the binding force of each molecular layer in montmorillonite, the present invention is surface modified montmorillonite using hydrochloric acid, make the micro molecule fault rupture of montmorillonite, the specific surface area and the contact area to the external world for increasing montmorillonite, high temperature alkaline solution boiling corn stover is utilized simultaneously, plant fiber strand is disconnected using high temperature and pressure hydrothermal decomposition, plant fiber itself reaction simultaneously generates carboxyl, the organic groups such as carbonyl, the combination that a large amount of organic group can make each molecule even closer, further strengthen the wearability of capacitor sealing ring, it has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of resistance to oxidation high intensity capacitor sealing ring, belong to rubber composite material technology
Field.
Background technique
The selection of sealing ring material is to its sealing performance and service life important in inhibiting.The performance of material directly affects
The service performance of sealing ring.
NBR nitrile rubber sealing ring: be suitable for petroleum hydraulic oil, glycol system hydraulic oil, diester-based lubricating oil, gasoline,
It is used in the media such as water, silicone grease, silicone oil.It is the rubber seal that current purposes is most wide, cost is minimum.HNBR hydrogenated butyronitrile
Rubber seal: suitable for the refrigeration system of washing machine, automobile engine system and use novel environment friendly refrigerant R134a.
SIL silicone rubber O-ring: it is suitable for household electrical appliance such as electric heater, electric iron, micro-wave oven etc..NR natural rubber sealing ring:
Easy to aging in air, heat becomes glutinous, is suitable for using in the liquid that automotive brake fluid, ethyl alcohol etc. have hydroxide ion.PU is poly-
Ammoniacum rubber seal: high pressure resistant, wear-resistant sealing part, such as hydraulic cylinder are generally used for.Metal-rubber sealing ring: in Gao Zhen
It keeps working normally under the environment such as sky, high/low temperature, intense radiation and various corrosion.Sealing ring epidermis is different by difference depending on the application
The production of the materials such as material such as stainless steel, copper, polytetrafluoroethylene (PTFE), the metal-rubber component being wrapped by have sealing strong as lining core
The advantages that degree is high, effect is good, reusable.Sealing ring lining core is the component manufactured by different metal silk diameter, density, is applicable in
In different pressure occasions.
Capacitor is often referred to simply as capacitor, is one of the electronic component largely used in electronic equipment, is widely used in electricity
The separated by direct communication on road, coupling, bypass, filtering, resonant tank, energy conversion, control etc..Capacitor is by shell, capacitance core
Son, end cap and connecting terminal composition, capacitor casing are provided with steeping medium, and steeping medium is generally vegetable oil or mineral oil,
The sealing position of capacitor is equipped with gasket or sealing ring, since the working environment of capacitor is multifarious, some capacitors
It needs to work under rugged environment, capacitor gasket needs resistance to oxidation, and wearability etc. has different requirements.
Therefore, a kind of oxidative resistance is good and wearability is good capacitor sealing ring is invented to rubber composite material technical field
With positive effect.
Summary of the invention
The technical problems to be solved by the invention: for current capacitor sealing ring oxidation resistent susceptibility is poor, wear-resisting property not
Good defect provides a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of preparation method of resistance to oxidation high intensity capacitor sealing ring, it is characterised in that specific preparation step are as follows:
(1) it weighs 500~800g montmorillonite and is placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, will be sieved
Object is mixed with water 1:10 in mass ratio investment beaker with blender, and hydrochloric acid is added dropwise after stirring into beaker, adjusts pH value
To 3~4, continue that the obtained mixed serum of 50~60min is mixed with the revolving speed of 500~550r/min with blender；
(2) ferric chloride solution of mixed serum quality 10~12% is added dropwise into above-mentioned beaker, places the beaker in sonic oscillation instrument
The solid sodium chloride powder of mixed serum quality 5~8% is added into beaker, places the beaker by 3~4h of sonic oscillation after oscillation
It in water-bath, while being mixed with blender, mixed reaction solution is made, it is spare；
(3) by corn stover and sodium hydroxide solution 1:15 in mass ratio investment beaker, constant temperature in water-bath is placed the beaker
Reaction, is obtained by filtration filter residue, wash with distilled water filter residue 3~5 times after reaction；
(4) according to parts by weight, 7~9 parts of filter residues, 1~2 part of citric acid, 4~6 parts of glucose, 0.6~1.0 part of iron chloride are weighed
In 15~18 parts of distilled water investment reaction kettles, it is mixed with blender, is stood after stirring and mixed dispersion liquid is made, will mixed
Dispersion liquid is placed in high-temperature high-pressure reaction kettle, is increased the gentle pressure of in-furnace temperature and is carried out constant temperature and pressure reaction, is cooled to after reaction often
The obtained reacting slurry of temperature；
(5) spare mixed reaction solution is uniformly mixed with above-mentioned reacting slurry 5:1 in mass ratio and pre-emulsion is made, by weight
Number meter weighs 50~55 parts of polyurethane rubbers, 2~3 parts of boraxs, 17~19 parts of pre-emulsions, 4~5 parts of diamino hexichol first
Alkane and 2~3 parts of N, the double thiamides of two sulphur of N '-tetramethyl put into mixers, put into mold and be kneaded, then heat up and continue to be kneaded,
Natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
The revolving speed of blender as described in step (1) is 500~550r/min, and mixing time is 30~40min, salt
The mass fraction of acid is 8~12%.
The mass fraction of iron chloride described in step (2) is 15~20%, the supersonic frequency of sonic oscillation instrument is 40~
42kHz, sonic oscillation time are 3~4h, and the bath temperature in water-bath is 80~90 DEG C, the revolving speed of blender is 600~
620r/min, mixing time are 60~80min.
The mass fraction of sodium hydroxide solution described in step (3) is 15~18%, and the bath temperature in water-bath is 90
~100 DEG C, the isothermal reaction time is 3~5h.
The revolving speed of blender is 1100~1200r/min, mixing time 60 in reaction kettle described in step (4)
~80min, time of repose is 3~5h after stirring, and high-temperature high-pressure reaction kettle temperature is increased to 160~170 DEG C, and air pressure is increased to 2
~3MPa, constant temperature and pressure reaction time are 70~80min.
Temperature in mixer described in step (5) is 80~90 DEG C, and mixing time is 10~15min, then the temperature that heats up
For degree to 120~130 DEG C, continuation mixing time is 30~40min.
The method have the benefit that:
(1) montmorillonite grinding and water are mixed to prepare mixed serum first by the present invention, and salt first is added in backward mixed serum
Mixed reaction solution is made, then the boiling in lye, water by corn stover in acid, iron chloride and sodium chloride high temperature hybrid reaction
Filter residue is obtained by filtration after boiling, then mixes filter residue with citric acid, glucose, iron chloride, system is reacted under high-temperature and high-pressure conditions
Reacting slurry, mixed reaction solution and reacting slurry are finally mixed to prepare pre-emulsion, and by pre-emulsion and rubber and
Other reagent investment kneading machine high temperatures, which are kneaded, is made resistance to oxidation high intensity capacitor sealing ring, and the present invention is with montmorillonite
Substrate modifies montmorillonite microcosmic surface by the way that hydrochloric acid is added, make potassium in montmorillonite, calcium, sodium and its
Its digestion of metallic ion destroys the binding force of each molecular layer in montmorillonite, to improve the specific surface area of montmorillonite, with
After iron ion is added, iron ion is swapped with the metal ion in montmorillenite, and iron ion is made to be adsorbed in montmorillenite
In each molecule interbed, and in montmorillonite coal formed ligand, make coal avoid in air oxygen contact from
And deterioration by oxidation phenomenon occurs, while iron ion can be generated with the oxygen in air and be reacted, oxygen oxygen can be further avoided
Change coal particles, to further strengthen resistance to oxidation effect, the kaolinic oxidation resistance of modification of microcrystalline is strong, thus with rubber
In conjunction with rear, the oxidation resistance of reinforcement capacitor rubber sealing ring；
(2) present invention is surface modified montmorillonite using hydrochloric acid, makes the micro molecule fault rupture of montmorillonite, increases
Add the specific surface area of montmorillonite with to extraneous contact area, thus make each molecule of montmorillonite and rubber molecule and
Other molecules form more Chemical bondings, reinforce the space structure density of capacitor sealing ring microstructure, to reinforce
The mechanical strength of sealing ring, is improved wearability, while utilizing high temperature alkaline solution boiling corn stover, the fibre therefrom isolated
Dimension element, plant fiber are modified by sodium citrate, glucose and iron ion, and plant fibre surface is made to access carboxylic group, carboxyl
Forming complex reaction with iron ion makes iron ion be adsorbed in plant fibre surface, and utilizes the multiple hydroxyl bases having in glucose
Group makes plant fiber be coated on formation microscopic particles shape structure on glucose molecule, also makes to plant using high temperature and pressure hydrothermal decomposition
Fibres strand disconnects, while plant fiber reaction itself generates carboxyl, the organic groups such as carbonyl, with montmorillonite,
After rubber mix, the combination that a large amount of organic group can make each molecule even closer further strengthens capacitor sealing ring
Wearability has broad application prospects.
Specific embodiment
It weighs 500~800g montmorillonite and is placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, will be sieved
30~40min is mixed with the revolving speed of 500~550r/min with blender in object and water 1:10 in mass ratio investment beaker, is stirred
The hydrochloric acid that mass fraction is 8~12% is added dropwise after mixing into beaker, adjusts pH value to 3~4, continue with blender with 500~
The revolving speed of 550r/min is mixed 50~60min and mixed serum is made；Into above-mentioned beaker be added dropwise mixed serum quality 10~
12% mass fraction be 15~20% ferric chloride solution, place the beaker in sonic oscillation instrument, supersonic frequency be 40~
The solid sodium chloride powder of mixed serum quality 5~8% is added in 3~4h of sonic oscillation under conditions of 42kHz into beaker after oscillation
End, placing the beaker bath temperature is in 80~90 DEG C of water-baths, while with blender with the revolving speed mixing of 600~620r/min
60~80min is stirred, mixed reaction solution is made, it is spare；The sodium hydroxide solution for being 15~18% by corn stover and mass fraction
1:15 in mass ratio is put into beaker, is placed the beaker in the water-bath that bath temperature is 90~100 DEG C, 3~5h of isothermal reaction,
Filter residue is obtained by filtration after reaction, wash with distilled water filter residue 3~5 times；According to parts by weight, 7~9 parts of filter residues, 1~2 part are weighed
In citric acid, 4~6 parts of glucose, 0.6~1.0 part of iron chloride and 15~18 parts of distilled water investment reaction kettles, with blender with
60~80min is mixed in the revolving speed of 1100~1200r/min, 3~5h is stood after stirring, mixed dispersion liquid is made, by mixing point
Dispersion liquid is placed in high-temperature high-pressure reaction kettle, increases in-furnace temperature to 160~170 DEG C, air pressure is increased to 2~3MPa, constant temperature and pressure
70~80min is reacted, obtained reacting slurry is cooled to room temperature after reaction；Spare mixed reaction solution and above-mentioned reacting slurry are pressed
Mass ratio 5:1 is uniformly mixed obtained pre-emulsion, according to parts by weight, weigh 50~55 parts of polyurethane rubbers, 2~3 parts of boraxs,
17~19 parts of pre-emulsions, 4~5 parts of diaminodiphenylmethane and 2~3 parts of N, the double thiamides of two sulphur of N '-tetramethyl put into mixing
In machine, it is kneaded 10~15min in investment mold under conditions of temperature is 80~90 DEG C, then be warming up to 120~130 DEG C, continued
It is kneaded 30~40min, natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
Weigh 500g montmorillonite and be placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, by sieving with
Water 1:10 in mass ratio puts into beaker and 30min is mixed with the revolving speed of 500r/min with blender, after stirring into beaker
The hydrochloric acid that mass fraction is 8% is added dropwise, adjusts pH value to 3, continues that 50min is mixed with the revolving speed of 500r/min with blender
Mixed serum is made；The ferric chloride solution that the mass fraction of mixed serum quality 10% is 15% is added dropwise into above-mentioned beaker, will burn
Cup is placed in sonic oscillation instrument, and mixing is added in sonic oscillation 3h under conditions of supersonic frequency is 40kHz into beaker after oscillation
The solid sodium chloride powder of grind slurries quality 5%, placing the beaker bath temperature is in 80 DEG C of water-baths, at the same with blender with
60min is mixed in the revolving speed of 600r/min, and mixed reaction solution is made, spare；The hydrogen for being 15% by corn stover and mass fraction
Sodium hydroxide solution 1:15 in mass ratio is put into beaker, is placed the beaker in the water-bath that bath temperature is 90 DEG C, isothermal reaction
Filter residue is obtained by filtration in 3h after reaction, wash with distilled water filter residue 3 times；According to parts by weight, weigh 7 parts of filter residues, 1 part of citric acid,
In 4 parts of glucose, 0.6 part of iron chloride and 15 parts of distilled water investment reaction kettles, stirred with blender with the revolving speed mixing of 1100r/min
60min is mixed, 3h is stood after stirring, mixed dispersion liquid is made, mixed dispersion liquid is placed in high-temperature high-pressure reaction kettle, increased in furnace
For temperature to 160 DEG C, air pressure is increased to 2MPa, and constant temperature and pressure reacts 70min, obtained reacting slurry is cooled to room temperature after reaction；It will
Spare mixed reaction solution is uniformly mixed with above-mentioned reacting slurry 5:1 in mass ratio is made pre-emulsion, according to parts by weight, claims
50 parts of polyurethane rubbers, 2 parts of boraxs, 17 parts of pre-emulsions, 4 parts of diaminodiphenylmethane and 2 parts of N are taken, two sulphur of N '-tetramethyl is double
Thiamides is put into mixer, is kneaded 10min in investment mold under conditions of temperature is 80 DEG C, then be warming up to 120 DEG C, is continued
It is kneaded 30min, natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
Weigh 700g montmorillonite and be placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, by sieving with
Water 1:10 in mass ratio puts into beaker and 35min is mixed with the revolving speed of 520r/min with blender, after stirring into beaker
The hydrochloric acid that mass fraction is 10% is added dropwise, adjusts pH value to 3, continues that 55min is mixed with the revolving speed of 520r/min with blender
Mixed serum is made；The ferric chloride solution that the mass fraction of mixed serum quality 11% is 17% is added dropwise into above-mentioned beaker, will burn
Cup is placed in sonic oscillation instrument, sonic oscillation 3.5h under conditions of supersonic frequency is 41kHz, is added after oscillation into beaker mixed
The solid sodium chloride powder for closing grind slurries quality 7%, placing the beaker bath temperature is in 85 DEG C of water-baths, at the same with blender with
70min is mixed in the revolving speed of 610r/min, and mixed reaction solution is made, spare；The hydrogen for being 17% by corn stover and mass fraction
Sodium hydroxide solution 1:15 in mass ratio is put into beaker, is placed the beaker in the water-bath that bath temperature is 95 DEG C, isothermal reaction
Filter residue is obtained by filtration in 3.5h after reaction, wash with distilled water filter residue 4 times；According to parts by weight, 8 parts of filter residues, 1 portion of lemon are weighed
It is mixed with the revolving speed of 1150r/min with blender in acid, 5 parts of glucose, 0.8 part of iron chloride and 17 parts of distilled water investment reaction kettles
Stirring 70min is closed, 3.5h is stood after stirring, mixed dispersion liquid is made, mixed dispersion liquid is placed in high-temperature high-pressure reaction kettle, risen
For high in-furnace temperature to 165 DEG C, air pressure is increased to 2MPa, and constant temperature and pressure reacts 75min, obtained reaction slurry is cooled to room temperature after reaction
Liquid；Spare mixed reaction solution is uniformly mixed with above-mentioned reacting slurry 5:1 in mass ratio, pre-emulsion is made, in parts by weight
Meter, weighs 52 parts of polyurethane rubbers, 2 parts of boraxs, 18 parts of pre-emulsions, 4 parts of diaminodiphenylmethane and 2 parts of N, N '-tetramethyl
In the double thiamides investment mixers of two sulphur, it is kneaded 12min in investment mold under conditions of temperature is 85 DEG C, then be warming up to 125
DEG C, continue to be kneaded 35min, natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
Weigh 800g montmorillonite and be placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, by sieving with
Water 1:10 in mass ratio puts into beaker and 40min is mixed with the revolving speed of 550r/min with blender, after stirring into beaker
The hydrochloric acid that mass fraction is 12% is added dropwise, adjusts pH value to 4, continues that 60min is mixed with the revolving speed of 550r/min with blender
Mixed serum is made；The ferric chloride solution that the mass fraction of mixed serum quality 12% is 20% is added dropwise into above-mentioned beaker, will burn
Cup is placed in sonic oscillation instrument, and mixing is added in sonic oscillation 4h under conditions of supersonic frequency is 42kHz into beaker after oscillation
The solid sodium chloride powder of grind slurries quality 8%, placing the beaker bath temperature is in 90 DEG C of water-baths, at the same with blender with
80min is mixed in the revolving speed of 620r/min, and mixed reaction solution is made, spare；The hydrogen for being 18% by corn stover and mass fraction
Sodium hydroxide solution 1:15 in mass ratio is put into beaker, is placed the beaker in the water-bath that bath temperature is 100 DEG C, isothermal reaction
Filter residue is obtained by filtration in 5h after reaction, wash with distilled water filter residue 5 times；According to parts by weight, weigh 9 parts of filter residues, 2 parts of citric acids,
In 6 parts of glucose, 1.0 parts of iron chloride and 18 parts of distilled water investment reaction kettles, stirred with blender with the revolving speed mixing of 1200r/min
80min is mixed, 5h is stood after stirring, mixed dispersion liquid is made, mixed dispersion liquid is placed in high-temperature high-pressure reaction kettle, increased in furnace
For temperature to 170 DEG C, air pressure is increased to 3MPa, and constant temperature and pressure reacts 80min, obtained reacting slurry is cooled to room temperature after reaction；It will
Spare mixed reaction solution is uniformly mixed with above-mentioned reacting slurry 5:1 in mass ratio is made pre-emulsion, according to parts by weight, claims
55 parts of polyurethane rubbers, 3 parts of boraxs, 19 parts of pre-emulsions, 5 parts of diaminodiphenylmethane and 3 parts of N are taken, two sulphur of N '-tetramethyl is double
Thiamides is put into mixer, is put into mold under the conditions of at a temperature of 90 °C and is kneaded 15min, then is warming up to 130 DEG C, is continued
It is kneaded 40min, natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
Comparative example as a comparison case makes the present invention with the resistance to oxidation high intensity capacitor sealing ring that Shenzhen company produces
The resistance to oxidation high intensity capacitor sealing ring in resistance to oxidation high intensity capacitor sealing ring and comparative example obtained carries out performance detection,
Testing result is as shown in table 1:
Test method:
Tensile strength test is detected using tensile-strength tester.
Wearability test: the capacitor sealing ring in example 1~3 and comparative example is seen after a period of time under use environment
Examine surface abrasion situation.
Wear volume test is detected using wear volume tester.
Oxidation resistent susceptibility test: being tested by GB/T7762-2003 ozone aging test method, is seen with 5 times of magnifying glasses
Examine surface.
1 capacitor sealing ring performance measurement result of table
| Test item | Example 1 | Example 2 | Example 3 | Comparative example |
| Tensile strength (MPa) | 16 | 17 | 18 | 10 |
| Wearability | Without scuffing, flawless | Without scuffing, flawless | Without scuffing, flawless | It is obvious damaged |
| Wear volume (cm3) | 0.22 | 0.21 | 0.20 | 0.53 |
| Rear surface situation is tested in ozone aging | Have no crackle | Have no crackle | Have no crackle | It is obvious damaged |
High, the mechanical property according to above-mentioned detection data resistance to oxidation high intensity capacitor sealing ring tensile strength produced by the present invention
Can be good, wearability is good, and wear volume is low, and the unchanged not breakage of rear surface is tested in ozone aging, and oxidation resistent susceptibility is good, has wide
Application prospect.
Claims (6)
1. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring, it is characterised in that specific preparation step are as follows:
(1) it weighs 500~800g montmorillonite and is placed in planetary ball mill and grind, cross 50 meshes and obtain sieving, will be sieved
Object is mixed with water 1:10 in mass ratio investment beaker with blender, and hydrochloric acid is added dropwise after stirring into beaker, adjusts pH value
To 3~4, continue that the obtained mixed serum of 50~60min is mixed with the revolving speed of 500~550r/min with blender；
(2) ferric chloride solution of mixed serum quality 10~12% is added dropwise into above-mentioned beaker, places the beaker in sonic oscillation instrument
The solid sodium chloride powder of mixed serum quality 5~8% is added into beaker, places the beaker by 3~4h of sonic oscillation after oscillation
It in water-bath, while being mixed with blender, mixed reaction solution is made, it is spare；
(3) by corn stover and sodium hydroxide solution 1:15 in mass ratio investment beaker, constant temperature in water-bath is placed the beaker
Reaction, is obtained by filtration filter residue, wash with distilled water filter residue 3~5 times after reaction；
(4) according to parts by weight, 7~9 parts of filter residues, 1~2 part of citric acid, 4~6 parts of glucose, 0.6~1.0 part of iron chloride are weighed
In 15~18 parts of distilled water investment reaction kettles, it is mixed with blender, is stood after stirring and mixed dispersion liquid is made, will mixed
Dispersion liquid is placed in high-temperature high-pressure reaction kettle, is increased the gentle pressure of in-furnace temperature and is carried out constant temperature and pressure reaction, is cooled to after reaction often
The obtained reacting slurry of temperature；
(5) spare mixed reaction solution is uniformly mixed with above-mentioned reacting slurry 5:1 in mass ratio and pre-emulsion is made, by weight
Number meter weighs 50~55 parts of polyurethane rubbers, 2~3 parts of boraxs, 17~19 parts of pre-emulsions, 4~5 parts of diamino hexichol first
Alkane and 2~3 parts of N, the double thiamides of two sulphur of N '-tetramethyl put into mixers, put into mold and be kneaded, then heat up and continue to be kneaded,
Natural cooling discharges up to resistance to oxidation high intensity capacitor sealing ring.
2. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring according to claim 1, it is characterised in that: step
Suddenly the revolving speed of blender described in (1) is 500~550r/min, and mixing time is 30~40min, the quality point of hydrochloric acid
Number is 8~12%.
3. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring according to claim 1, it is characterised in that: step
Suddenly the mass fraction of iron chloride described in (2) is 15~20%, and the supersonic frequency of sonic oscillation instrument is 40~42kHz, ultrasound vibration
Swinging the time is 3~4h, and the bath temperature in water-bath is 80~90 DEG C, and the revolving speed of blender is 600~620r/min, and mixing is stirred
Mixing the time is 60~80min.
4. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring according to claim 1, it is characterised in that: step
Suddenly the mass fraction of sodium hydroxide solution described in (3) is 15~18%, and the bath temperature in water-bath is 90~100 DEG C, permanent
The warm reaction time is 3~5h.
5. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring according to claim 1, it is characterised in that: step
Suddenly the revolving speed of blender is 1100~1200r/min in reaction kettle described in (4), and mixing time is 60~80min, is stirred
Mixing rear time of repose is 3~5h, and high-temperature high-pressure reaction kettle temperature is increased to 160~170 DEG C, and air pressure is increased to 2~3MPa, constant temperature
The constant pressure reaction time is 70~80min.
6. a kind of preparation method of resistance to oxidation high intensity capacitor sealing ring according to claim 1, it is characterised in that: step
Suddenly the temperature in mixer described in (5) is 80~90 DEG C, and mixing time is 10~15min, then warming temperature to 120~
130 DEG C, continuation mixing time is 30~40min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452537A (en) * | 2019-07-06 | 2019-11-15 | 张明 | A kind of preparation method of high strength heat resistant silicon rubber |
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| CN1536031A (en) * | 2003-04-11 | 2004-10-13 | 陈书怡 | Polycrystalline state composite and its preparation method |
| CN103709561A (en) * | 2013-12-04 | 2014-04-09 | 铜陵日兴电子有限公司 | Mixed rubber capacitor sealing ring and preparation method therefor |
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- 2018-09-21 CN CN201811104058.5A patent/CN109280359A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536031A (en) * | 2003-04-11 | 2004-10-13 | 陈书怡 | Polycrystalline state composite and its preparation method |
| CN103709561A (en) * | 2013-12-04 | 2014-04-09 | 铜陵日兴电子有限公司 | Mixed rubber capacitor sealing ring and preparation method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452537A (en) * | 2019-07-06 | 2019-11-15 | 张明 | A kind of preparation method of high strength heat resistant silicon rubber |
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