CN107338010B - A kind of sealant and preparation method thereof for alkaline zinc-manganese dioxide cell sealing ring - Google Patents

A kind of sealant and preparation method thereof for alkaline zinc-manganese dioxide cell sealing ring Download PDF

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CN107338010B
CN107338010B CN201710620541.8A CN201710620541A CN107338010B CN 107338010 B CN107338010 B CN 107338010B CN 201710620541 A CN201710620541 A CN 201710620541A CN 107338010 B CN107338010 B CN 107338010B
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weight
parts
sealant
sealing ring
manganese dioxide
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CN107338010A (en
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刘军平
张婷婷
陈立晖
吴杭军
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Hengdian Group DMEGC Magnetics Co Ltd
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Hengdian Group DMEGC Magnetics Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J115/00Adhesives based on rubber derivatives
    • C09J115/005Hydrogenated nitrile rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/22Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/24Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/183Sealing members
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/206Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Material Composition (AREA)

Abstract

The present invention relates to field of batteries, disclose a kind of sealant and preparation method thereof for alkaline zinc-manganese dioxide cell sealing ring.The sealant includes following component by weight: 40 ~ 50 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 20 ~ 30 parts by weight of modified organic silicone resin, 10 ~ 15 parts by weight of feldspar, 2 ~ 6 parts by weight of beryllium oxide, 1 ~ 3 parts by weight of di-n-octyl phthalate, 0.2 ~ 0.6 parts by weight of methacryloxypropyl trimethoxy silane.Sealant intensity of the present invention is high, and thermal stability is good.

Description

A kind of sealant and preparation method thereof for alkaline zinc-manganese dioxide cell sealing ring
Technical field
The present invention relates to field of batteries, more particularly, to a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring and its Preparation method.
Background technique
The leakproofness of battery is to evaluate important one of the index of battery performance, battery sealing-performance difference will appear battery sepage, The case where leakage, not only shortens the service life of battery, also will cause environmental pollution, is unfavorable for the health of people.? During preparing alkaline zinc-manganese dioxide cell, sealing process is to spray upper sealant in the outer surface of sealing ring, then by sealing ring It is inserted into the outer cylinder of battery, the sealing of battery is realized after glue cooled and solidified to be sealed.Currently, the dry cell occurred in the market is close Most of sealing does not have high temperature resistance, and battery is encountering high temperature in special circumstances, and sealant is easy melting and leakage occurs The case where, cause the pollution of environment.
China Patent Publication No. CN103468192B discloses a kind of accumulator sealant and preparation method thereof, the sealant Be made of resin portion and curing agent part, resin portion include 80~95 parts of bisphenol A type epoxy resin, reactive diluent 5~ 15 parts, 0~3 part of defoaming agent, curing agent part include 40~60 parts of aliphatic polyamine, 10~30 parts of aliphatic cyclic amine, activity dilution 20~40 parts of agent.Although the sealant of preparation can achieve the effect that sealing, poor with non-refractory and stability Disadvantage.
Summary of the invention
The present invention is to provide a kind of high temperature resistant, stabilization to overcome the problems, such as prior art cell sealing glue non-refractory The good cell sealing glue of property.
The present invention also provides a kind of preparation methods of sealant for alkaline zinc-manganese dioxide cell sealing ring.
To achieve the goals above, the invention adopts the following technical scheme: a kind of be used for alkaline zinc-manganese dioxide cell sealing ring Sealant, including following component: 40~50 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 20~30 weight of modified organic silicone resin Part, 10~15 parts by weight of feldspar, 2~6 parts by weight of beryllium oxide, 1~3 parts by weight of di-n-octyl phthalate, methacryl 0.2~0.6 parts by weight of oxygroup propyl trimethoxy silicane.
Organic siliconresin is as a kind of filler, and skeleton structure Si-O-Si, Si-O has biggish bond energy, in high temperature Under conditions of do not allow easy fracture and decomposition, therefore there is excellent heat-resisting quantity and stability.Part is organic under the high temperature conditions The organic group being connected on silicone resin Si-O-Si main chain and element silicon is destroyed, and is will form in new activity in this breaking part The heart, can and the inorganic matters such as feldspar and beryllium oxide interact, this effect not only performance intrinsic without destruction sealant, also into One step enhances the high heat resistance of organic siliconresin.In addition, part silicone resin will form after by thermal oxide it is highly cross-linked Si-O-Si key can form a protective layer in hydrogenated nitrile-butadiene rubber rubber compound polymer surfaces, play protection to polymer and make With.
Feldspar silicate fillers are not only heat-resist, also have certain intensity, can be improved sealant heat resistance and Intensity.In addition, under the high temperature conditions, part silicone resin will form new activated centre, silicate surfaces have a small amount of Hydroxyl can react under the catalytic action of oxide with activated centre, form a kind of new substance, formation it is new Substance further enhances the heat resistance of sealant.
Beryllium oxide can be catalyzed silicate under the high temperature conditions and react with organic siliconresin as a kind of catalyst, be formed Substance enhance the heat resistance of sealant.At high temperature, beryllium oxide can also interact with organosilicon, generate silicon oxygen Alkane further improves the heat resistance of sealing ring.In addition, beryllium oxide can also improve the heat dissipation performance of material.
Preferably, the preparation method of the modified organic silicone resin includes:
(1) 14~20g trichloroethyl silane, 3~10g phenyl trichlorosilane and 40~50mL propyl alcohol are added to there-necked flask In, it is placed in the water-bath of ice cube, magnetic stirrer 40~after sixty minutes, add the chloro- 3- chloropropyl first of 12~18g bis- Base silane, 4~12g dichloro-diethyl silane, continue stirring 10~20 minutes, obtain chlorosilane mixture;
(2) at a certain temperature, be added into another there-necked flask 50~80mL toluene, 10~15mL acetone and 200~ Then the chlorosilane mixture that step (1) obtains is slowly added dropwise in 220mL distilled water, heating, stirring 2~3 hours, at normal temperature After standing 1~2 hour, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) organosilicon that 100~120mL toluene, 6~14g diatomite and step (2) obtain is sequentially added in there-necked flask Prepolymer solution stirs 5~10 minutes, then carries out heating heating for the first time, after toluene distillation is gone out, carries out second liter Temperature heating, finally distills out other solvents and obtains modified organic silicone resin reaction a period of time.
Organic siliconresin is modified using diatomite.Silica surface contains a large amount of hydroxyl, hydroxyl in diatomite With the hydroxyl in organic siliconresin condensation reaction can occur for base, increase the degree of cross linking of organic siliconresin, further improve The thermal stability of organic siliconresin.Silica has certain colloidal nature, will form siliceous colloid particle after meeting water, has Certain adsorption capacity, the curing time that can not only shorten organic siliconresin can also reduce the solidification temperature of organic siliconresin.
Preferably, being added before drug in the step (2) into there-necked flask, controlled at 10~18 DEG C.
Preferably, heating temperature is 50~55 DEG C in the step (2).
Preferably, being warming up to 111~120 DEG C for the first time in the step (3), it is warming up to 170~190 DEG C for the second time.
Preferably, the reaction time is 2~3.5 hours in the step (3).
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 20~30 part by weight modified organic siliconresins, 40~50 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.2~0.6 parts by weight methacryloxypropyl trimethoxy silane, 10~15 parts by weight feldspars, the oxidation of 2~6 parts by weight Beryllium, 1~3 parts by weight di-n-octyl phthalate are added in reaction kettle;
(2) control temperature of reaction kettle is 40~50 DEG C, is then stirred, and control mixing speed is 350~400 revs/min Clock, stirring obtained sealant mixture after 4~7 hours.
Preferably, mixing speed is 350~400 revs/min in the step (2), mixing time is 4~6 hours.
Therefore, the invention has the following beneficial effects: (1) modified organic silicone resins to have preferable stability, improves The heat resistance of sealant, curing time shorten, and solidification temperature reduces;(2) under high temperature, part silicone will form highly cross-linked Si-O-Si group is covered on hydrogenated nitrile-butadiene rubber rubber compound surface, protects hydrogenated nitrile-butadiene rubber rubber compound;(3) under high temperature, Part silicone can be decomposed to form new activated centre, can react with inorganic matter, the substance of generation further enhances sealant Heat resistance;(4) at high temperature, beryllium oxide can not only be catalyzed silicate and react with organic silicon rubber, and beryllium oxide may be used also To improve the heat dissipation performance of sealant.
Specific embodiment
Below by specific embodiment, technical scheme is described further.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art, Method in embodiment is unless otherwise instructed the conventional method of this field.
Embodiment 1
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 40 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 20 parts by weight of modified organic silicone resin, 10 parts by weight of feldspar, 2 weight of beryllium oxide Measure part, 1 parts by weight of di-n-octyl phthalate, 0.2 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 14g trichloroethyl silane, 3g phenyl trichlorosilane and 40mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, magnetic stirrer after forty minutes, adds the chloro- 3- chloropropyl silane of 12g bis-, 4g Dichlorodiethyl Silane continues stirring 10 minutes, obtains chlorosilane mixture;
(2) under the conditions of 10 DEG C, 50mL toluene, 10mL acetone and 200mL distilled water are added into another there-necked flask, then The chlorosilane mixture that step (1) obtains is slowly added dropwise, is heated to 50 DEG C, stirs 2 hours, after standing 1 hour at normal temperature, goes Organic-silicone prepolymer solution is obtained after being washed with NaCl to neutrality except supernatant;
(3) it is molten that the organosilicon performed polymer that 100mL toluene, 6g diatomite and step (2) obtain is sequentially added in there-necked flask Liquid stirs 5 minutes, then increases oil bath temperature to 111 DEG C, after toluene distillation is gone out, is warming up to 170 DEG C, reacts 2 hours, It finally distills out other solution and obtains modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 20 part by weight modified organic siliconresins, 40 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.2 parts by weight Methacryloxypropyl trimethoxy silane, 10 parts by weight feldspars, 2 parts by weight beryllium oxide, 1 parts by weight phthalic acid two N-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 40 DEG C, is then stirred, and control mixing speed is 350 revs/min, and stirring 4 is small When after obtain sealant mixture.
Embodiment 2
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 42 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 22 parts by weight of modified organic silicone resin, 11 parts by weight of feldspar, 3 weight of beryllium oxide Measure part, 1.2 parts by weight of di-n-octyl phthalate, 0.3 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 15g trichloroethyl silane, 4g phenyl trichlorosilane and 42mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, after magnetic stirrer 42 minutes, the chloro- 3- chloropropyl silane of 13g bis-, 5g Dichlorodiethyl are added Silane continues stirring 12 minutes, obtains chlorosilane mixture;
(2) under the conditions of 12 DEG C, 55mL toluene, 11mL acetone and 205mL distilled water are added into another there-necked flask, then The chlorosilane mixture that step (1) obtains is slowly added dropwise, is heated to 51 DEG C, stirs 2.5 hours, stands 1.5 hours at normal temperature Afterwards, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) it is molten that the organosilicon performed polymer that 102mL toluene, 7g diatomite and step (2) obtain is sequentially added in there-necked flask Liquid stirs 6 minutes, then increases oil bath temperature to 112 DEG C, after toluene distillation is gone out, is warming up to 175 DEG C, reaction 2.5 is small When, it finally distills out other solution and obtains modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 22 part by weight modified organic siliconresins, 42 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.3 parts by weight Methacryloxypropyl trimethoxy silane, 11 parts by weight feldspars, 3 parts by weight beryllium oxide, 1.2 parts by weight phthalic acids Di-n-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 42 DEG C, is then stirred, and control mixing speed is 360 revs/min, stirring 4.5 Sealant mixture is obtained after hour.
Embodiment 3
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 44 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 24 parts by weight of modified organic silicone resin, 12 parts by weight of feldspar, 4 weight of beryllium oxide Measure part, 1.4 parts by weight of di-n-octyl phthalate, 0.35 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 16g trichloroethyl silane, 5g phenyl trichlorosilane and 44mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, after magnetic stirrer 45 minutes, the chloro- 3- chloropropyl silane of 14g bis-, 6g Dichlorodiethyl are added Silane continues stirring 14 minutes, obtains chlorosilane mixture;
(2) under the conditions of 14 DEG C, 60mL toluene, 13mL acetone and 210mL distilled water are added into another there-necked flask, then The chlorosilane mixture that step (1) obtains is slowly added dropwise, is heated to 53 DEG C, stirs 2.5 hours, stands 1.5 hours at normal temperature Afterwards, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) it is molten that the organosilicon performed polymer that 105mL toluene, 9g diatomite and step (2) obtain is sequentially added in there-necked flask Liquid stirs 7 minutes, then increases oil bath temperature to 114 DEG C, after toluene distillation is gone out, is warming up to 180 DEG C, reacts 3 hours, It finally distills out other solution and obtains modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 24 part by weight modified organic siliconresins, 44 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.35 parts by weight Methacryloxypropyl trimethoxy silane, 12 parts by weight feldspars, 4 parts by weight beryllium oxide, 1.4 parts by weight phthalic acids Di-n-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 44 DEG C, is then stirred, and control mixing speed is 370 revs/min, and stirring 5 is small When after obtain sealant mixture.
Embodiment 4
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 45 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 25 parts by weight of modified organic silicone resin, 13 parts by weight of feldspar, 5 weight of beryllium oxide Measure part, 1.6 parts by weight of di-n-octyl phthalate, 0.4 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 17g trichloroethyl silane, 6g phenyl trichlorosilane and 45mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, after magnetic stirrer 46 minutes, the chloro- 3- chloropropyl silane of 15g bis-, 7g Dichlorodiethyl are added Silane continues stirring 15 minutes, obtains chlorosilane mixture;
(2) under the conditions of 15 DEG C, 70mL toluene, 13mL acetone and 210mL distilled water are added into another there-necked flask, then The chlorosilane mixture that step (1) obtains is slowly added dropwise, is heated to 53 DEG C, stirs 2.5 hours, stands 1.5 hours at normal temperature Afterwards, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) it is molten that the organosilicon performed polymer that 110mL toluene, 10g diatomite and step (2) obtain is sequentially added in there-necked flask Liquid stirs 8 minutes, then increases oil bath temperature to 116 DEG C, after toluene distillation is gone out, is warming up to 180 DEG C, reacts 3 hours, It finally distills out other solution and obtains modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 25 part by weight modified organic siliconresins, 45 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.4 parts by weight Methacryloxypropyl trimethoxy silane, 13 parts by weight feldspars, 5 parts by weight beryllium oxide, 1.6 parts by weight phthalic acids Di-n-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 45 DEG C, is then stirred, and control mixing speed is 380 revs/min, and stirring 6 is small When after obtain sealant mixture.
Embodiment 5
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 48 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 27 parts by weight of modified organic silicone resin, 14 parts by weight of feldspar, beryllium oxide 5.5 Parts by weight, 2 parts by weight of di-n-octyl phthalate, 0.5 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 18g trichloroethyl silane, 9g phenyl trichlorosilane and 48mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, after magnetic stirrer 48 minutes, the chloro- 3- chloropropyl silane of 17g bis-, 10g dichlorodiethyl are added Base silane continues stirring 18 minutes, obtains chlorosilane mixture;
(2) under the conditions of 16 DEG C, 70mL toluene, 14mL acetone and 215mL distilled water are added into another there-necked flask, then The chlorosilane mixture that step (1) obtains is slowly added dropwise, is heated to 54 DEG C, stirs 2.5 hours, stands 1.5 hours at normal temperature Afterwards, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) it is molten that the organosilicon performed polymer that 115mL toluene, 13g diatomite and step (2) obtain is sequentially added in there-necked flask Liquid stirs 8 minutes, then increases oil bath temperature to 118 DEG C, after toluene distillation is gone out, is warming up to 185 DEG C, reacts 3 hours, It finally distills out other solution and obtains modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 27 part by weight modified organic siliconresins, 48 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.5 parts by weight Methacryloxypropyl trimethoxy silane, 14 parts by weight feldspars, 5 parts by weight beryllium oxide, 2 parts by weight phthalic acids two N-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 48 DEG C, is then stirred, and control mixing speed is 390 revs/min, stirring 6.5 Sealant mixture is obtained after hour.
Embodiment 6
The invention adopts the following technical scheme: a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, the sealant Including 50 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 30 parts by weight of modified organic silicone resin, 15 parts by weight of feldspar, 6 weight of beryllium oxide Measure part, 3 parts by weight of di-n-octyl phthalate, 0.6 parts by weight of methacryloxypropyl trimethoxy silane.
Wherein, the preparation method of modified organic silicone resin, includes the following steps:
(1) 20g trichloroethyl silane, 10g phenyl trichlorosilane and 50mL propyl alcohol are added in there-necked flask, have been placed in ice In the water-bath of block, magnetic stirrer after sixty minutes, adds the chloro- 3- chloropropyl silane of 18g bis-, 12g dichlorodiethyl Base silane continues stirring 20 minutes, obtains chlorosilane mixture;
(2) 80mL toluene, 15mL acetone and 220mL distilled water are added into another there-necked flask, step is then slowly added dropwise (1) chlorosilane mixture obtained is heated to 55 DEG C, stirs 3 hours, and after standing 2 hours at normal temperature, removal supernatant is used NaCl obtains organic-silicone prepolymer solution after washing to neutrality;
(3) under the conditions of 18 DEG C, sequentially add what 120mL toluene, 14g diatomite and step (2) obtained in there-necked flask Organosilicon prepolymer solution stirs 10 minutes, then increases oil bath temperature to 120 DEG C, after toluene distillation is gone out, is warming up to It 190 DEG C, reacts 3.5 hours, finally distills out other solution and obtain modified organic silicone resin.
A kind of preparation method of the sealant of alkaline zinc-manganese dioxide cell sealing ring, comprising the following steps:
(1) successively by 30 part by weight modified organic siliconresins, 50 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.6 parts by weight Methacryloxypropyl trimethoxy silane, 15 parts by weight feldspars, 6 parts by weight beryllium oxide, 3 parts by weight phthalic acids two N-octyl is added in reaction kettle;
(2) control temperature of reaction kettle is 50 DEG C, is then stirred, and control mixing speed is 400 revs/min, and stirring 7 is small When after obtain sealant mixture.
Comparative example 1
Sealant is by 45 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 13 parts by weight of feldspar, 5 parts by weight of beryllium oxide, adjacent benzene two 1.6 parts by weight of formic acid di-n-octyl, 0.4 parts by weight of methacryloxypropyl trimethoxy silane are prepared.
Comparative example 2
Sealant is by 45 parts by weight of hydrogenated nitrile-butadiene rubber rubber compound, 1.6 parts by weight of di-n-octyl phthalate, methyl-prop 0.4 parts by weight of alkene acryloxypropylethoxysilane trimethoxy silane are prepared.
The performance parameter for testing sealant is as shown in the table:
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.

Claims (7)

1. a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring, characterized in that including following component: hydrogenated nitrile-butadiene rubber 40 ~ 50 parts by weight of rubber compound, 20 ~ 30 parts by weight of modified organic silicone resin, 10 ~ 15 parts by weight of feldspar, 2 ~ 6 parts by weight of beryllium oxide, 1 ~ 3 parts by weight of di-n-octyl phthalate, 0.2 ~ 0.6 parts by weight of methacryloxypropyl trimethoxy silane;Wherein, The preparation method of the modified organic silicone resin includes:
(1) 14 ~ 20g trichloroethyl silane, 3 ~ 10g phenyl trichlorosilane and 40 ~ 50 mL propyl alcohol are added in there-necked flask, are set In the water-bath for having ice cube, magnetic stirrer 40 ~ after sixty minutes, add the chloro- 3- chloropropyl silane of 12 ~ 18g bis-, 4 ~ 12g dichloro-diethyl silane continues stirring 10 ~ 20 minutes, obtains chlorosilane mixture;
(2) at a certain temperature, 50 ~ 80mL toluene, 10 ~ 15mL acetone and 200 ~ 220 mL distillation are added into another there-necked flask Then the chlorosilane mixture that step (1) obtains is slowly added dropwise in water, heating, stirs 2 ~ 3 hours, stands 1 ~ 2 hour at normal temperature Afterwards, removal supernatant obtains organic-silicone prepolymer solution after being washed with NaCl to neutrality;
(3) the organosilicon performed polymer that 100 ~ 120mL toluene, 6 ~ 14g diatomite and step (2) obtain is sequentially added in there-necked flask Solution stirs 5 ~ 10 minutes, then carries out heating heating for the first time, after toluene distillation is gone out, carries out second of heating heating, It reaction a period of time, finally distills out other solvents and obtains modified organic silicone resin.
2. a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring according to claim 1, characterized in that step (2) it is added before drug in into there-necked flask, controlled at 10 ~ 18 DEG C.
3. a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring according to claim 1, characterized in that step (2) heating temperature is 50 ~ 55 DEG C in.
4. a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring according to claim 1, characterized in that step (3) 111 ~ 120 DEG C are warming up to for the first time in, is warming up to 170 ~ 190 DEG C for the second time.
5. a kind of sealant for alkaline zinc-manganese dioxide cell sealing ring according to claim 1, characterized in that step (3) reaction time is 2 ~ 3.5 hours in.
6. a kind of system of the sealant for alkaline zinc-manganese dioxide cell sealing ring as described in claim 1 ~ 5 any claim Preparation Method, characterized in that the following steps are included:
(a) successively by 20 ~ 30 parts by weight organic siliconresins, 40 ~ 50 parts by weight of hydrogenated nitrile rubber rubber compounds, 0.2 ~ 0.6 weight Part methacryloxypropyl trimethoxy silane, 10 ~ 15 parts by weight feldspars, 2 ~ 6 parts by weight beryllium oxide, 1 ~ 3 parts by weight are adjacent Phthalic acid di-n-octyl is added in reaction kettle;
(b) control temperature of reaction kettle is 40 ~ 50 DEG C, is then stirred, obtains sealant mixture.
7. a kind of preparation method of sealant for alkaline zinc-manganese dioxide cell sealing ring according to claim 6, special Sign is that mixing speed is 350 ~ 400 revs/min in the step (b), and mixing time is 4 ~ 6 hours.
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CN108587556A (en) * 2017-12-29 2018-09-28 东莞市朗泰通实业有限公司 A kind of Ni-MH battery leakproof seal glue and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN104774587A (en) * 2014-03-18 2015-07-15 岳胜武 High-viscosity high-heat resistance modified organic silicone resin binder and preparation method thereof
CN105885753A (en) * 2016-04-25 2016-08-24 何凤英 Insulation glue for lithium metal batteries and preparation method thereof
CN105907345A (en) * 2016-04-19 2016-08-31 安徽亿诺新能源有限责任公司 Seal gum specially used for low-self-discharge battery and preparation process of same
CN106336820A (en) * 2016-08-29 2017-01-18 无锡市宝来电池有限公司 Heat-resistant leakproof sealant of alkaline storage battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104774587A (en) * 2014-03-18 2015-07-15 岳胜武 High-viscosity high-heat resistance modified organic silicone resin binder and preparation method thereof
CN105907345A (en) * 2016-04-19 2016-08-31 安徽亿诺新能源有限责任公司 Seal gum specially used for low-self-discharge battery and preparation process of same
CN105885753A (en) * 2016-04-25 2016-08-24 何凤英 Insulation glue for lithium metal batteries and preparation method thereof
CN106336820A (en) * 2016-08-29 2017-01-18 无锡市宝来电池有限公司 Heat-resistant leakproof sealant of alkaline storage battery

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Denomination of invention: The invention relates to a sealant for sealing ring of alkaline zinc manganese dry battery and a preparation method thereof

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