CN103160233A - Cardanol modified epoxy pouring sealant and preparation method thereof - Google Patents
Cardanol modified epoxy pouring sealant and preparation method thereof Download PDFInfo
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- CN103160233A CN103160233A CN2011104309044A CN201110430904A CN103160233A CN 103160233 A CN103160233 A CN 103160233A CN 2011104309044 A CN2011104309044 A CN 2011104309044A CN 201110430904 A CN201110430904 A CN 201110430904A CN 103160233 A CN103160233 A CN 103160233A
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Abstract
A cardanol modified epoxy pouring sealant is composed of an epoxy pouring sealant A component and an epoxy pouring sealant B component. The epoxy pouring sealant A component is composed of bisphenol A epoxy resin and cardanol glycidyl ether, and a weight ratio of the bisphenol A epoxy resin to the cardanol glycidyl ether is 85-95:5-15. The epoxy pouring sealant B component is composed of cardanol, mixed amine and accelerant, and a weight ratio of the cardanol to the mixed amine to the accelerant is 60-80:20-40:3-10. A weight ratio of the epoxy pouring sealant A component to the epoxy pouring sealant B component is 3.5-4.5:1. A curing agent is a middle-normal temperature curing agent and can solidify under a middle-normal temperature condition. The cardanol modified epoxy pouring sealant further provides a method for preparing the cardanol modified epoxy pouring sealant. The method uses the cardanol to serve as a raw material and can pass harsh the restriction of the use of certain hazardous substances in electrical and electronic equipment (ROSH) environmental protection standard. The mixed amine is used for replacing aliphatic amine to reduce cost. The cardanol modified epoxy pouring sealant prolongs gelation time, meets requirements for operation time and is short in curing time and good in physical and chemical property.
Description
Technical field:
The present invention relates to chemical field, relate in particular to organic chemistry, particularly epoxy pouring sealant, concrete is a kind of modified by cardanol epoxy pouring sealant and preparation method thereof.
Background technology:
Epoxy resin encapsulated is the insulating means that the electron device production extensively adopts.The process of embedding is that the liquid-state epoxy resin mixture is poured into mechanical or manual mode in the device that electronic component, circuit are housed, and is solidified into the thermosetting polymer insulating material of excellent performance under normal temperature or heating condition.But the globality of epoxy resin encapsulated strengthening electronic device, the resistibility of raising to external shock, vibrations improves between inner member, circuit and insulate, and is conducive to device miniaturization, lightweight, avoid element, device directly to expose, improve waterproof, the humidity resistance of device.The epoxy resin that can be used for embedding is divided into normal temperature and the two class epoxy pouring sealants that are heating and curing, the two component epoxy potting compound that wherein is heating and curing is the kind that consumption is maximum, purposes is the widest, be characterized in that mixture operation degree is little, good manufacturability, working life is long, infiltration property is good, and the cured article excellent combination property is applicable to the high voltage electronics automatic production line and uses.But the gel time of epoxy pouring sealant of the prior art is shorter, can not satisfy the demand of long-time operation, and simultaneously, set time is long, has extended the production time of electron device.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of modified by cardanol epoxy pouring sealant, and described this modified by cardanol epoxy pouring sealant will solve the problem that in prior art, the epoxy pouring sealant gel time is shorter, set time is long.
This modified by cardanol epoxy pouring sealant of the present invention, formed by epoxy pouring sealant A component and solidifying agent B component, described epoxy pouring sealant A component is comprised of bisphenol A epoxide resin and cardanol glycidyl ether, and the weight ratio of described bisphenol A epoxide resin and cardanol glycidyl ether is 85～95:5～15; Described solidifying agent B component is comprised of cardanol, mixed amine and promotor, and the weight ratio of described cardanol, mixed amine and promotor is 60～80:20～40:3～10, and the weight ratio of described epoxy resin A component and solidifying agent B is 3.5～4.5:1.
Further, described mixed amine by N-aminoethyl piperazine, 2-monoethanolamine, polyethylene polyamine and triethylene tetramine form, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 10～12:33～36:30～33:19～21.
Further, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 11.2:34.6:31.8:20.
Further, described promotor is DMP-30 or K54.
the present invention also provides a kind of method for preparing above-mentioned modified by cardanol epoxy pouring sealant, described method comprises the step of a preparation epoxy pouring sealant A component and the step of a preparation epoxy pouring sealant solidifying agent B component, in the step of described preparation epoxy pouring sealant A component, first take bisphenol A epoxide resin and cardanol glycidyl ether according to weight percent, then bisphenol A epoxide resin and cardanol glycidyl ether are mixed, dispersed with stirring 20～40 minutes, obtain epoxy pouring sealant A component, in the step of described preparation epoxy pouring sealant solidifying agent B component, first take cardanol according to weight percent, mixed amine and promotor, then add cardanol in reactor, under the agitation condition of 600～800 rev/mins, add mixed amine and promotor, dispersed with stirring 45～80 minutes, obtain solidifying agent B component, weight proportion when epoxy pouring sealant A component and epoxy pouring sealant solidifying agent B component use is 3.5～4.5:1.
Further, the weight ratio of described bisphenol A epoxide resin and cardanol glycidyl ether is 90:10.
Further, the weight ratio of described cardanol, mixed amine and promotor is 60～80:20～40:3～10.
Further, described mixed amine by N-aminoethyl piperazine, 2-monoethanolamine, polyethylene polyamine and triethylene tetramine form, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 10～12:33～36:30～33:19～21.
Further, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 11.2:34.6:31.8:20.
Further, described promotor is DMP-30 or K54.
It is raw material that the present invention adopts green natural biomaterial cardanol, can pass through the harshest ROSH environmental protection standard.Simultaneously, the present invention uses mixed amine as raw material, substitutes aliphatic amide commonly used, can reduce costs.
The index of PGL A component product of the present invention is: 25 ℃ of lower viscosity 3000-4000 mpa.s, admittedly contain〉95%, outward appearance is light yellow transparent liquid; The index of PGL B component product is: 25 ℃ of lower viscosity 250-300mpa.s, proportion 0.92-0.98 g/ml is admittedly contain〉95%, amine value 300-330 mgKOH/g.
The present invention compares with prior art, and its effect is actively with obvious.Modified by cardanol epoxy resin embedding adhesive of the present invention can solidify under the condition of middle normal temperature, and dosing technology is simple.Operable time of the present invention is 25 ℃ of X 45 minutes, and 24 hours+60 ℃ X of 25 ℃ of X set time 4 hours fully.After curing, the index that cured article reaches: tensile strength kg/C ㎡ 18, bending strength kg/C ㎡ 19, ultimate compression strength kg/C ㎡ 22, surface resistivity ohm 6*10 (9), volume resistance ohm 1*10 (15), proof voltage kv/mm 15-18, hardness shore D 75, water-intake rate % (25 ℃ of * 24hr)＜0.1.
Embodiment:
Embodiment 1
The preparation of B component in the modified by cardanol epoxy resin embedding adhesive: the cardanol that adds 60-80 part in reactor, under the agitation condition of 600～800 rev/mins, add 20～40 parts of mixed amine, add 3～10 parts of promotor, dispersed with stirring 60 minutes obtains final product.
The preparation of A component in the modified by cardanol epoxy resin embedding adhesive: 90 parts of bisphenol A epoxide resins, 10 parts of cardanol glycidyl ethers, dispersed with stirring 30 minutes.
Embodiment 2
Under 25 ℃ of conditions, A material and B material, fall in mould after mixing with the preparation of 4:1 proportioning, are put in 60 ℃ of baking ovens, reacted 4 hours, test performance, mixture solidifies fully, hardness shore D〉75, Gu piece is transparent, smooth surface, inner without defectives such as bubbles, other performances are all up to standard.
Embodiment 3
Under 25 ℃ of conditions, A material and B material are with the preparation of 4:1 proportioning, and after mixing, the test gel time reaches 60 minutes.
Above-mentioned experiment shows, modified by cardanol epoxy resin embedding adhesive of the present invention, and duration of service is long, set time is short, and viscosity is low, and filling process is simple and convenient, it is convenient to solidify, and has good physical and chemical performance, the surface of metal and non-metallic material is had the bonding strength of excellence, dielectric properties are good, the set shrinking percentage is little, the product size good stability, and hardness is high, snappiness is better, and solidified surface is smooth, luminance brightness good, good insulating.
Claims (10)
1. modified by cardanol epoxy pouring sealant, it is characterized in that: formed by epoxy pouring sealant A component and solidifying agent B component, described epoxy pouring sealant A component is comprised of bisphenol A epoxide resin and cardanol glycidyl ether, and the weight ratio of described bisphenol A epoxide resin and cardanol glycidyl ether is 85～95:5～15; Described solidifying agent B component is comprised of cardanol, mixed amine and promotor, and the weight ratio of described cardanol, mixed amine and promotor is 60～80:20～40:3～10, and the weight ratio of described epoxy resin A component and solidifying agent B is 3.5～4.5:1.
2. modified by cardanol epoxy pouring sealant as claimed in claim 1, it is characterized in that: described mixed amine by N-aminoethyl piperazine, 2-monoethanolamine, polyethylene polyamine and triethylene tetramine form, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 10～12:33～36:30～33:19～21.
3. modified by cardanol epoxy pouring sealant as claimed in claim 2 is characterized in that: described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 11.2:34.6:31.8:20.
4. modified by cardanol epoxy pouring sealant as claimed in claim 1, it is characterized in that: described promotor is DMP-30 or K54.
5. method for preparing modified by cardanol epoxy pouring sealant as claimed in claim 1, it is characterized in that: comprise the step of a preparation epoxy pouring sealant A component and the step of a preparation epoxy pouring sealant solidifying agent B component, in the step of described preparation epoxy pouring sealant A component, first take bisphenol A epoxide resin and cardanol glycidyl ether according to weight percent, then bisphenol A epoxide resin and cardanol glycidyl ether are mixed, dispersed with stirring 20～40 minutes, obtain epoxy pouring sealant A component, in the step of described preparation epoxy pouring sealant solidifying agent B component, first take cardanol according to weight percent, mixed amine and promotor, then add cardanol in reactor, under the agitation condition of 600～800 rev/mins, add mixed amine and promotor, dispersed with stirring 45～80 minutes, obtain solidifying agent B component, weight proportion when epoxy pouring sealant A component and epoxy pouring sealant solidifying agent B component use is 3.5～4.5:1.
6. the preparation method of modified by cardanol epoxy pouring sealant as claimed in claim 5, it is characterized in that: the weight ratio of described bisphenol A epoxide resin and cardanol glycidyl ether is 90:10.
7. the preparation method of modified by cardanol epoxy pouring sealant as claimed in claim 5 is characterized in that: the weight ratio of described cardanol, mixed amine and promotor is 60～80:20～40:3～10.
8. the preparation method of modified by cardanol epoxy pouring sealant as claimed in claim 5, it is characterized in that: described mixed amine by N-aminoethyl piperazine, 2-monoethanolamine, polyethylene polyamine and triethylene tetramine form, described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 10～12:33～36:30～33:19～21.
9. the preparation method of modified by cardanol epoxy pouring sealant as claimed in claim 8 is characterized in that: described N-aminoethyl piperazine, 2-monoethanolamine, the weight ratio of polyethylene polyamine and triethylene tetramine is 11.2:34.6:31.8:20.
10. the preparation method of modified by cardanol epoxy pouring sealant as claimed in claim 5, it is characterized in that: described promotor is DMP-30 or K54.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104309044A CN103160233A (en) | 2011-12-21 | 2011-12-21 | Cardanol modified epoxy pouring sealant and preparation method thereof |
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| CN2011104309044A CN103160233A (en) | 2011-12-21 | 2011-12-21 | Cardanol modified epoxy pouring sealant and preparation method thereof |
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| CN103160233A true CN103160233A (en) | 2013-06-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740058A (en) * | 2013-12-26 | 2014-04-23 | 江苏省产品质量监督检验研究院 | Normal temperature fast curing pouring material and preparation method thereof |
| CN103881305A (en) * | 2014-03-04 | 2014-06-25 | 天津虹炎科技有限公司 | Epoxy resin composition |
| CN108384497A (en) * | 2018-03-13 | 2018-08-10 | 中冶武汉冶金建筑研究院有限公司 | A kind of low viscosity repairing concrete crack potting compound and preparation method thereof |
| CN108611036A (en) * | 2018-05-03 | 2018-10-02 | 黑龙江省科学院石油化学研究院 | A kind of preparation method of cardanol glycidyl ether modified epoxy adhesive |
| CN111286292A (en) * | 2020-02-11 | 2020-06-16 | 广西大学 | Strong-weathering limestone dangerous rock joint filling agent and preparation method thereof |
| CN114174460A (en) * | 2019-07-31 | 2022-03-11 | 3M创新有限公司 | Fast curing oil resistant binder compositions |
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| US5575956A (en) * | 1995-07-19 | 1996-11-19 | Hughes Aircraft Company | Room-temperature stable, one-component, electrically-conductive, flexible epoxy adhesives |
| CN101676317A (en) * | 2008-09-16 | 2010-03-24 | 上海美东生物材料有限公司 | Application of cardanol in epoxy resin curing |
| CN101712857A (en) * | 2009-12-22 | 2010-05-26 | 江苏大力士投资有限公司 | Epoxy dry-hang glue and preparation method thereof |
| CN102827565A (en) * | 2012-09-19 | 2012-12-19 | 三友（天津）高分子技术有限公司 | One-component epoxy adhesive for automobiles and preparation method thereof |
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Patent Citations (4)
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| US5575956A (en) * | 1995-07-19 | 1996-11-19 | Hughes Aircraft Company | Room-temperature stable, one-component, electrically-conductive, flexible epoxy adhesives |
| CN101676317A (en) * | 2008-09-16 | 2010-03-24 | 上海美东生物材料有限公司 | Application of cardanol in epoxy resin curing |
| CN101712857A (en) * | 2009-12-22 | 2010-05-26 | 江苏大力士投资有限公司 | Epoxy dry-hang glue and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740058A (en) * | 2013-12-26 | 2014-04-23 | 江苏省产品质量监督检验研究院 | Normal temperature fast curing pouring material and preparation method thereof |
| CN103881305A (en) * | 2014-03-04 | 2014-06-25 | 天津虹炎科技有限公司 | Epoxy resin composition |
| CN103881305B (en) * | 2014-03-04 | 2016-03-02 | 天津虹炎科技有限公司 | Composition epoxy resin |
| CN108384497A (en) * | 2018-03-13 | 2018-08-10 | 中冶武汉冶金建筑研究院有限公司 | A kind of low viscosity repairing concrete crack potting compound and preparation method thereof |
| CN108384497B (en) * | 2018-03-13 | 2020-11-20 | 中冶武汉冶金建筑研究院有限公司 | Low-viscosity concrete crack repairing perfusion adhesive and preparation method thereof |
| CN108611036A (en) * | 2018-05-03 | 2018-10-02 | 黑龙江省科学院石油化学研究院 | A kind of preparation method of cardanol glycidyl ether modified epoxy adhesive |
| CN108611036B (en) * | 2018-05-03 | 2020-07-14 | 黑龙江省科学院石油化学研究院 | Preparation method of cardanol glycidyl ether modified epoxy resin adhesive |
| CN114174460A (en) * | 2019-07-31 | 2022-03-11 | 3M创新有限公司 | Fast curing oil resistant binder compositions |
| CN114174460B (en) * | 2019-07-31 | 2024-04-16 | 3M创新有限公司 | Quick setting oil resistant adhesive composition |
| CN111286292A (en) * | 2020-02-11 | 2020-06-16 | 广西大学 | Strong-weathering limestone dangerous rock joint filling agent and preparation method thereof |
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Application publication date: 20130619 |