CN101007932A - Accumulator sealant - Google Patents
Accumulator sealant Download PDFInfo
- Publication number
- CN101007932A CN101007932A CNA2007100669631A CN200710066963A CN101007932A CN 101007932 A CN101007932 A CN 101007932A CN A2007100669631 A CNA2007100669631 A CN A2007100669631A CN 200710066963 A CN200710066963 A CN 200710066963A CN 101007932 A CN101007932 A CN 101007932A
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- China
- Prior art keywords
- epoxy resin
- resins
- type epoxy
- bisphenol
- accumulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Epoxy Resins (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses an accumulator seal gum, which is characterized in that: it comprises component A and B, and the weight proportion between A and B is 4: 1; A comprises epoxy resin, diluting agent and/ or solvent; B comprises curing agent and plasticizing agent. Said epoxy resin is bisphenol a epoxy resin or mixture of bisphenol a epoxy resin and novolac epoxy. The flowability of seal gum is pretty good, and it will flow levelly automatically instantly after injection in plastic groove, which greatly increases the working efficiency for aritifical sealing, and the stretching and cutting strength is far better than the country standard of 3 Mpa.
Description
Technical field
The present invention relates to a kind of sealant, particularly a kind of lead acid cell sealing, bonding tackiness agent of being used for.
Background technology
Lead acid cell is that a kind of purposes is very extensive, the industrial goods that demand is very huge, and in process of production, connection of the groove of store battery lid and wiring part generally all stick with glue agent and are sealed, block up acid.
Rising year by year along with the store battery market requirement, the processing of old and useless battery and the maintenance of store battery are more and more come into one's own, and the key of store battery maintenance is promptly will open sealing cover can not damage battery cell case, more existing seal gums are if bonding strength is high, when opening sealing cover,, seal gum can damage battery cell case because being difficult to peel off, how and guarantee that it is a difficult problem anxious to be solved that good bonding strength is not damaged battery cell case again when opening sealing cover and the bonding strength height that is easy to peel off is all lower.
Summary of the invention
The invention provides a kind of good fluidity, bonding strength height, acid resistance is good, is beneficial to the seal gum of battery service.
A kind of accumulator sealant comprises two kinds of components of A, B, and the weight ratio of A, B component is A: B=4: 1; Count 100 with Resins, epoxy gross weight umber, the weight part of A, B component consists of:
The A component:
Resins, epoxy 100
Thinner and/or solvent 10～30
The B component:
Solidifying agent 20～30
Softening agent 5～15
Described Resins, epoxy promptly can be the bisphenol A type epoxy resin of single model, also can be the mixture of the bisphenol A type epoxy resin of two kinds of different models, can also be bisphenol A type epoxy resin and phenol aldehyde type epoxy resin mixture.
The oxirane value of described bisphenol A type epoxy resin is 0.4～0.6.The trade mark commonly used as 128,0164, E51 (618) or E44 (6101).
The oxirane value of described phenol aldehyde type epoxy resin is 0.4～0.6.Trade mark F44 commonly used or F51.
Embody higher cohesive strength behind the adhesive solidification when using the bisphenol A type epoxy resin of two kinds of different models, preferred group became when two kinds of different models were mixed use:
0164 of 20～80 weight parts mix use with the E44 of 20～80 weight parts; More preferably 0164 of 50 weight parts mixes use with the E44 of 50 weight parts.When E51 mixes with E44 when using, the overall performance of the seal gum when being used alone trade mark Resins, epoxy is better, as the bonding strength of unlike material, flowability etc. are all reached better effect.
Temperature tolerance is particularly excellent behind the adhesive solidification when bisphenol A type epoxy resin mixes use with phenol aldehyde type epoxy resin, be more suitable for using as primer, preferred group became when bisphenol A type epoxy resin mixed use with phenol aldehyde type epoxy resin: the bisphenol A type epoxy resin of 20～80 weight parts mixes use with the phenol aldehyde type epoxy resin of 20～80 weight parts.
The Resins, epoxy of all kinds, the trade mark can one be used in combination as required.
For example when requiring good fluidity, can adopt the lower bisphenol A type epoxy resin of viscosity, the main trade mark has 128,0164, E51,618.
When requiring bonding strength high, can adopt 128,0164, E51,618 a kind of and E44 (6101) wherein mixes use, the blended part by weight can be an adjusting in 20: 80～80: 20, and optimum proportion is 50: 50.
When require temperature tolerance good, when requiring good fluidity again, adopt 128,0164, E51,618 a kind of and F51 phenol aldehyde type epoxy resin wherein mixes use, the blended part by weight can be an adjusting in 20: 80～80: 20, optimum proportion is 50: 50.
When require temperature tolerance good, when requiring bonding strength high again, adopt the E44 bisphenol A type epoxy resin to mix use with the F44 phenol aldehyde type epoxy resin, the blended part by weight can be an adjusting in 20: 80～80: 20, optimum proportion is 50: 50.
In the A component, the thinner of 5～30 weight parts and/or solvent, solvent can use separately also with thinner can mix use.
Being preferably the thinner of 15 weight parts and the solvent of 5 weight parts uses, this moment, the existence of solvent can add residual dirt dissolving in man-hour with the binding surface, be more conducive to adherend surface and the intermolecular effect of tackiness agent, also embodied higher bonding strength and performance.Suitably selecting for use of the thinner of proportioning and solvent has good flowability before making sealing glue solidifying, is beneficial to casting and constructing.
Described thinner is epoxide resin reactive or non-activated thinner.Commonly used have epoxy active diluent 501 (660) formal names used at school: epoxy propane butyl ether, epoxide resin reactive are released rare dose 690 formal name used at school: propylene oxide phenyl ether, epoxy active diluent 692 formal names used at school: benzyl glycidyl ether or epoxy chloropropane; Other release rare dose 502,500,503,622,630,652,662,661,660,669,678,680,5746,5748,748,746,6628,6604,6630, TK100 or SM-60 etc. as Resins, epoxy.
Described solvent is: acetone, trichloromethane, ethylene dichloride, nylon acid dimethyl ester (DBE), ethyl acetate, toluene, dimethylbenzene.
Described solidifying agent is: polynary mixed amine based epoxy resin curing agent, model commonly used such as epoxy curing agent 115,593, diethylenetriamine, ketoimine, N-β hydroxyethylethylene diamine etc.
Described softening agent is: Uniflex DBS, dicyclohexyl phthalate, dibutyl phthalate or dioctyl ester.
Described coupling agent is: silane coupling agent, and as KH-550, KH-560, KH-580, KH-590, KH-602, KH-792, KH-845-4, B-201, G-402, Nanjing University-42, Nanjing University-73 or A-150.
Except described A, B component, can also add one or more auxiliary agents in this seal gum, auxiliary agent generally is to be blended in the B component in actual applications.Gross weight in Resins, epoxy is 100 parts, available auxiliary agent such as coupling agent 1-3 weight part, defoamer 0.1-0.5 weight part, mask agent 0.05-0.1 weight part, flow agent 0.1-0.5 weight part, promotor 1-5 weight part or anti-shrinkage cavity auxiliary agent 0.1-0.5 weight part.
Described coupling agent is: silane coupling agent, and as KH-550, KH-560, KH-580, KH-590, KH-602, KH-792, KH-845-4, B-201, G-402, Nanjing University-42, Nanjing University-73 or A-150.Described defoamer is: broken bubble polymkeric substance and polysiloxane solution, and as organic silicon defoaming agent HX-2013.
Described mask agent is: GD101 or GD66.
Described flow agent is: polyether-modified polydimethylsiloxane solution, and as organosilicon flow agent HX-3010 or HX-3083.
Described promotor is: epoxy resin cure altax P-30, phenol, dihydroxyphenyl propane, meta-cresol or Resorcinol.DMP-30, formal name used at school 2,4,6 three (dimethylamino methyl) phenol belongs to the tertiary amines solidifying agent.
Described anti-shrinkage cavity auxiliary agent is: organically-modified polydimethylsiloxane solution, and as anti-shrinkage cavity auxiliary agent HX-3082.
The adding of defoamer and shrinkage cavity agent can increase density and the bonding force behind the sealing glue solidifying.
When accumulator sealant of the present invention uses, after two kinds of components of A, B are mixed in proportion, stirred 2～3 minutes, and leave standstill and use after making epoxy glue elimination bubble in 2～3 minutes.Refer to touch dried during the seal gum room temperature about 5 hours, solidified in 24 hours; When 50～60 spent, 2 hours promptly curable.
Accumulator sealant of the present invention is when obtaining stronger bonding strength.Suitably improve the fragility of tackiness agent.With modified multicomponent mixing amine curing agent, make the toughness of seal gum and the stagnation point that fragility is adjusted in a best, make store battery when needing repairing, under certain external force effect, can make colloid and mould shell and separate and do not damage and mould shell with the softening agent of an amount of proportioning.
Accumulator sealant of the present invention has increased substantially the cohesive force to metal, ethylene-propylene rubber(EPR) under the prerequisite that does not reduce the cohesive force of ABS plastic, guarantee the cohesive strength of three kinds of materials on the electrode pole.
Accumulator sealant of the present invention has good flowability before solidifying, and injects and moulds the rapid levelling automatically of meeting in the shell groove, has improved the working efficiency of manually sealing greatly, because of good fluidity, also is difficult for producing bubble, has guaranteed the effect that seals.
The index that accumulator sealant of the present invention stretches, shearing resistance far surpasses national standard 3MPa also obviously is better than like product on the market.
Embodiment
Embodiment 1～6
Each embodiment A component weight part proportioning sees Table 1, and each Embodiment B component and other auxiliary agent weight part proportionings see Table 2.
Each embodiment A component weight part proportioning of table 1
| Component A | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Resins, epoxy | 100 parts of E44 | 100 parts of E51 | 80 parts of 20 parts of E51 of E44 | 50 parts of 50 parts of E51 of E44 | 40 parts of 60 parts of F51 of E51 | 50 parts of 50 parts of F44 of E44 |
| Thinner | 501 20 parts | 502 20 parts | 660 10 parts | 501 15 parts | 503 10 parts | 660 15 parts |
| Solvent | - | 8 parts of ethylene dichloride | 10 parts of ethyl acetate | 5 parts of toluene | 10 parts in acetone | 5 parts of ethylene dichloride |
Each Embodiment B component of table 2 and weight part proportioning
| Other auxiliary agents of component B | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Solidifying agent | 115 25 parts of epoxy curing agents | 593 22 parts of epoxy curing agents | 20 parts of epoxy curing agent diethylenetriamines | 10 parts of 115 15 parts of diethylenetriamines of epoxy curing agent | 20 parts of modified amine YH-82 | 24 parts of modified amine YH-82 |
| Softening agent | 5 parts of Uniflex DBSs | 10 parts of dibutyl phthalates | 10 parts of dibutyl phthalates | 5 parts of Uniflex DBSs | 10 parts of Uniflex DBSs | 6 parts of Uniflex DBSs |
| Coupling agent | 1 part of KH-550 | 3 parts of KH-560 | 2 parts of KH-580 | 3 parts of KH-590 | 1.5 parts of KH-602 | 2.5 parts of KH-792 |
| Defoamer | 0.2 part of HX-2013 | 0.5 part of HX-2013 | 0.1 part of HX-2013 | 0.4 part of HX-2013 | 0.3 part of HX-2013 | 0.5 part of HX-2013 |
| Mask agent | 0.05 part of GD101 | 0.1 part of GD101 | 0.07 part of GD101 | 0.05 part of GD66 | 0.08 part of GD66 | 0.06 part of GD66 |
| Flow agent | 0.1 part of HX-3010 | 0.2 part of HX-3010 | 0.5 part of HX-3010 | 0.5 part of HX-3083 | 0.4 part of HX-3083 | 0.5 part of HX-3083 |
| Promotor | 1 part of DMP-30 | 3 parts of phenol | 5 parts of phenol | 1 part of DMP-30 | 4 parts of meta-cresols | 2 parts of Resorcinols |
| Anti-shrinkage cavity auxiliary agent | 0.1 part of HX-3082 | 0.4 part of HX-3082 | 0.3 part of HX-3082 | 0.2 part of HX-3082 | 0.5 part of HX-3082 | 0.5 part of HX-3082 |
Performance Detection is done performance test with the seal gum of embodiment 4 preparations
A, B component are mixed back viscosity (25 degree): 510mpas commercial like product viscosity 1200-1800mpas
Tensile shear strength (examination criteria GB/T 7124): 10MP has only the commercial like product 5-6MP sulfuric acid dipping changes in weight≤3.5%
Shore hardness: 〉=85
(normal temperature be dipped in 46.5% sulfuric acid 120 hours) changes in weight after the pickling :≤0.1%
(normal temperature be dipped in 46.5% sulfuric acid 120 hours) tensile shear strength conservation rate after the pickling: 81%
Seal gum of the present invention after testing has excellent bonding strength and flowability, and can tolerate the corrosion of strong acid.
Claims (10)
1, a kind of accumulator sealant is characterized in that: comprise two kinds of components of A, B, the weight ratio of A, B component is A: B=4: 1; Count 100 with Resins, epoxy gross weight umber, the weight part of A, B component consists of:
The A component:
Resins, epoxy 100
Thinner and/or solvent 10～30
The B component:
Solidifying agent 20～30
Softening agent 5～15
Described Resins, epoxy is the mixture of bisphenol A type epoxy resin or bisphenol A type epoxy resin and phenol aldehyde type epoxy resin.
2, accumulator sealant as claimed in claim 1 is characterized in that: the oxirane value of described bisphenol A type epoxy resin is that the oxirane value of 0.4～0.6 described phenol aldehyde type epoxy resin is 0.4～0.6.
3, accumulator sealant as claimed in claim 1 is characterized in that: described Resins, epoxy is made up of the E51 of 20～80 weight parts and the E44 of 20～80 weight parts.
4, accumulator sealant as claimed in claim 3 is characterized in that: described Resins, epoxy is made up of the E51 of 50 weight parts and the E44 of 50 weight parts.
5, accumulator sealant as claimed in claim 1 is characterized in that: described Resins, epoxy is made up of the bisphenol A type epoxy resin of 20～80 weight parts and the phenol aldehyde type epoxy resin of 20～80 weight parts.
6, accumulator sealant as claimed in claim 1 is characterized in that: described Resins, epoxy is the bisphenol A type epoxy resin of single model.
7, accumulator sealant as claimed in claim 1 is characterized in that: the weight part in the A component consists of:
Resins, epoxy 100
Thinner 15
Solvent 5
8, as claim 1 or 7 described accumulator sealants, it is characterized in that: described thinner is an epoxide resin reactive diluent.
9, as claim 1 or 7 described accumulator sealants, it is characterized in that: described solvent is: acetone, trichloromethane, ethylene dichloride, nylon acid dimethyl ester, ethyl acetate, toluene, dimethylbenzene.
10, accumulator sealant as claimed in claim 1 is characterized in that: described solidifying agent is: polynary mixed amine based epoxy resin curing agent; Described softening agent is: Uniflex DBS, dicyclohexyl phthalate, dibutyl phthalate or dioctyl ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100669631A CN100480353C (en) | 2007-01-29 | 2007-01-29 | Accumulator sealant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100669631A CN100480353C (en) | 2007-01-29 | 2007-01-29 | Accumulator sealant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101007932A true CN101007932A (en) | 2007-08-01 |
| CN100480353C CN100480353C (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100669631A Expired - Fee Related CN100480353C (en) | 2007-01-29 | 2007-01-29 | Accumulator sealant |
Country Status (1)
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| CN (1) | CN100480353C (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457133B (en) * | 2009-01-09 | 2012-05-30 | 宜兴市江南药用化工厂 | Lead accumulator epoxy resin sealant and preparation method thereof |
| CN102800820A (en) * | 2012-08-03 | 2012-11-28 | 上海锦众信息科技有限公司 | Sealing method of lead-acid battery pole |
| CN103045147A (en) * | 2012-12-21 | 2013-04-17 | 上海康达化工新材料股份有限公司 | Cold-proof and damp-proof epoxy resin main agent for crystal glue drip and preparation method thereof |
| CN103131365A (en) * | 2011-11-30 | 2013-06-05 | 常熟市辛庄镇前进五金厂 | Single component room temperature curing epoxy construction glue |
| CN103293097A (en) * | 2013-05-09 | 2013-09-11 | 安徽理士电源技术有限公司 | Method for testing bonding strength of epoxy resin glue and storage battery sealing method |
| CN103468192A (en) * | 2013-09-17 | 2013-12-25 | 广州聚合电子材料有限公司 | Storage battery sealing gum and preparation method of storage battery sealing gum |
| CN103468191A (en) * | 2013-09-17 | 2013-12-25 | 广州聚合电子材料有限公司 | Bottoming-free identifying glue for storage battery and preparation method thereof |
| CN103725241A (en) * | 2014-01-16 | 2014-04-16 | 日邦树脂(无锡)有限公司 | Epoxy resin adhesive for encapsulating lead-acid storage battery and preparation method thereof |
| CN103881364A (en) * | 2014-04-08 | 2014-06-25 | 董奇爱 | Dripping material formula |
| CN104830259A (en) * | 2015-04-21 | 2015-08-12 | 长兴铁鹰电气有限公司 | Formula and preparation method of lead-acid battery electrode pole sealant |
| CN105602502A (en) * | 2016-02-22 | 2016-05-25 | 苏州锐耐洁电子科技新材料有限公司 | Anticorrosion sealant and preparation method thereof |
| CN105958169A (en) * | 2016-05-31 | 2016-09-21 | 安徽省瑞洋通讯设备有限公司 | Method for using closing glue to close double-frequency circuit breaker cavity port |
| CN106058413A (en) * | 2016-06-24 | 2016-10-26 | 安徽省瑞洋通讯设备有限公司 | Preparation method of sealing glue for filling resonant cavity of full-band double-frequency combiner |
| CN106188993A (en) * | 2016-08-29 | 2016-12-07 | 无锡市宝来电池有限公司 | A kind of lead-acid accumulator encapsulant |
| CN108790194A (en) * | 2018-06-06 | 2018-11-13 | 昆山巨石新能源科技有限公司 | The FDS riveting process of battery pack housing and cover board |
| CN109439252A (en) * | 2018-10-26 | 2019-03-08 | 广州聚合新材料科技股份有限公司 | A kind of epoxy resin sealant and its preparation method and application |
| CN112521891A (en) * | 2019-09-18 | 2021-03-19 | 天津珍熙美容实业有限公司 | Epoxy resin adhesive, application thereof and artificial nail |
| CN113823805A (en) * | 2020-06-15 | 2021-12-21 | 山东华太新能源电池有限公司 | Leakage-proof mercury-free, lead-free and cadmium-free environment-friendly carbon zinc-manganese dry battery and manufacturing method thereof |
| CN114015371A (en) * | 2021-11-24 | 2022-02-08 | 辛格顿(常州)新材料科技有限公司 | Insulating adhesive tape |
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2007
- 2007-01-29 CN CNB2007100669631A patent/CN100480353C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457133B (en) * | 2009-01-09 | 2012-05-30 | 宜兴市江南药用化工厂 | Lead accumulator epoxy resin sealant and preparation method thereof |
| CN103131365A (en) * | 2011-11-30 | 2013-06-05 | 常熟市辛庄镇前进五金厂 | Single component room temperature curing epoxy construction glue |
| CN102800820A (en) * | 2012-08-03 | 2012-11-28 | 上海锦众信息科技有限公司 | Sealing method of lead-acid battery pole |
| CN103045147A (en) * | 2012-12-21 | 2013-04-17 | 上海康达化工新材料股份有限公司 | Cold-proof and damp-proof epoxy resin main agent for crystal glue drip and preparation method thereof |
| CN103045147B (en) * | 2012-12-21 | 2014-08-13 | 上海康达化工新材料股份有限公司 | Cold-proof and damp-proof epoxy resin main agent for crystal glue drip and preparation method thereof |
| CN103293097A (en) * | 2013-05-09 | 2013-09-11 | 安徽理士电源技术有限公司 | Method for testing bonding strength of epoxy resin glue and storage battery sealing method |
| CN103468191B (en) * | 2013-09-17 | 2015-01-28 | 广州聚合电子材料有限公司 | Bottoming-free identifying glue for storage battery and preparation method thereof |
| CN103468192A (en) * | 2013-09-17 | 2013-12-25 | 广州聚合电子材料有限公司 | Storage battery sealing gum and preparation method of storage battery sealing gum |
| CN103468191A (en) * | 2013-09-17 | 2013-12-25 | 广州聚合电子材料有限公司 | Bottoming-free identifying glue for storage battery and preparation method thereof |
| CN103468192B (en) * | 2013-09-17 | 2015-04-15 | 广州聚合电子材料有限公司 | Storage battery sealing gum and preparation method of storage battery sealing gum |
| CN103725241B (en) * | 2014-01-16 | 2015-07-15 | 日邦树脂(无锡)有限公司 | Epoxy resin adhesive for encapsulating lead-acid storage battery and preparation method thereof |
| CN103725241A (en) * | 2014-01-16 | 2014-04-16 | 日邦树脂(无锡)有限公司 | Epoxy resin adhesive for encapsulating lead-acid storage battery and preparation method thereof |
| CN103881364A (en) * | 2014-04-08 | 2014-06-25 | 董奇爱 | Dripping material formula |
| CN104830259A (en) * | 2015-04-21 | 2015-08-12 | 长兴铁鹰电气有限公司 | Formula and preparation method of lead-acid battery electrode pole sealant |
| CN105602502A (en) * | 2016-02-22 | 2016-05-25 | 苏州锐耐洁电子科技新材料有限公司 | Anticorrosion sealant and preparation method thereof |
| CN105958169A (en) * | 2016-05-31 | 2016-09-21 | 安徽省瑞洋通讯设备有限公司 | Method for using closing glue to close double-frequency circuit breaker cavity port |
| CN106058413B (en) * | 2016-06-24 | 2019-07-05 | 安徽一鸣通讯设备有限公司 | For filling the preparation method of the solid seal glue of full frequency band dual-frequency channel merger resonant cavity |
| CN106058413A (en) * | 2016-06-24 | 2016-10-26 | 安徽省瑞洋通讯设备有限公司 | Preparation method of sealing glue for filling resonant cavity of full-band double-frequency combiner |
| CN106188993A (en) * | 2016-08-29 | 2016-12-07 | 无锡市宝来电池有限公司 | A kind of lead-acid accumulator encapsulant |
| CN108790194A (en) * | 2018-06-06 | 2018-11-13 | 昆山巨石新能源科技有限公司 | The FDS riveting process of battery pack housing and cover board |
| CN109439252A (en) * | 2018-10-26 | 2019-03-08 | 广州聚合新材料科技股份有限公司 | A kind of epoxy resin sealant and its preparation method and application |
| CN112521891A (en) * | 2019-09-18 | 2021-03-19 | 天津珍熙美容实业有限公司 | Epoxy resin adhesive, application thereof and artificial nail |
| CN113823805A (en) * | 2020-06-15 | 2021-12-21 | 山东华太新能源电池有限公司 | Leakage-proof mercury-free, lead-free and cadmium-free environment-friendly carbon zinc-manganese dry battery and manufacturing method thereof |
| CN114015371A (en) * | 2021-11-24 | 2022-02-08 | 辛格顿(常州)新材料科技有限公司 | Insulating adhesive tape |
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| Publication number | Publication date |
|---|---|
| CN100480353C (en) | 2009-04-22 |
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