CN103665324A - Epoxy latent curing agent and corresponding epoxy resin coating - Google Patents
Epoxy latent curing agent and corresponding epoxy resin coating Download PDFInfo
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- CN103665324A CN103665324A CN201310563916.3A CN201310563916A CN103665324A CN 103665324 A CN103665324 A CN 103665324A CN 201310563916 A CN201310563916 A CN 201310563916A CN 103665324 A CN103665324 A CN 103665324A
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Abstract
The invention discloses an epoxy latent curing agent and a coating thereof. The epoxy latent curing agent comprises the following components in parts by weight: 80-90 parts of dicyandiamide, 30-50 parts of urea derivatives, 40-60 parts of silicon dioxide, 10-30 parts of asbestos fiber and 10-20 parts of diluent. The epoxy resin coating comprises 40-55% of epoxy resin, 10-20% of the epoxy latent curing agent, 10-20% of pigments, 5-15% of defoamer, 5-15% of diluent and 5-15% of flatting agent. The epoxy latent curing agent disclosed by the invention is good in curing performance, low in curing temperature, good in storage stability, strong in adaptability and wide in using performance. The epoxy resin coating is low in viscosity, short in curing time, low in curing temperature, flat, smooth, uniform, convenient to use and good in storage stability.
Description
Technical field:
The present invention relates to solidifying agent technical field and coating industry, particularly a kind of epoxy resin lalent solidifying agent and epoxypaint thereof.
Background technology:
At room temperature, in epoxy resin, latent curing agent can be stored for a long time, and under the conditions such as heating, curing reaction occurs.Wherein conventional epoxy resin lalent solidifying agent is Dyhard RU 100.It is distributed in epoxy resin, good stability, and normal temperature can reach more than 6 months working life, and cured article has good performance.But Dyhard RU 100 during separately as solidifying agent solidification value surpass 170 ℃, bad with epoxy resin and lower boiling solvent phase dissolubility, be unfavorable for making matrix material.
Dyhard RU 100 preparation single-component coating advantage is exactly mechanical property and good stability, and period of storage is long, but solidification value is high, and set time is long, and this is also the problem that same needs solve.
Summary of the invention:
One of order of the present invention is to provide a kind of epoxy resin lalent solidifying agent, and the curing performance of this solidifying agent is good, and solidification value is low, and storage stability is good, strong adaptability.Another object of the present invention is to provide a kind of epoxypaint, and the viscosity of this epoxypaint is low, and set time is fast, and solidification value is low, smooth, smooth, even, easy to use, and storage stability is good.
For achieving the above object, epoxy resin lalent solidifying agent of the present invention includes following parts by weight of component: Dyhard RU 100 80～90, carbamide derivative 30～50, silicon-dioxide 40～60, fibrous magnesium silicate 10～30, thinner 10～20, carbamide derivative is as the promotor of Dyhard RU 100, and its structural formula is:
R
1, R
2=simultaneously or represent independently of each other hydrogen, C
1-to C
10-alkyl, C
3-to C
12-cycloalkyl.
As technique scheme preferably, described R
1, R
2=simultaneously or represent independently of each other hydrogen, methyl, ethyl.
As technique scheme preferably, described thinner is polyglycidyl ether or acetone.
Epoxypaint of the present invention, every 100 parts of water comprise the following ingredients forming by mass percentage: epoxy resin 40%-55%, epoxy resin lalent solidifying agent 10%-20%, pigment 10%-20%, defoamer 5%-15%, thickening material 5%-15%, flow agent 5%-15%; Wherein, epoxy resin lalent solidifying agent includes following parts by weight of component: Dyhard RU 100 80～90, carbamide derivative 30～50, silicon-dioxide 40～60, fibrous magnesium silicate 10～30, thinner 10～20, carbamide derivative is as the promotor of Dyhard RU 100, and its structural formula is:
R
1, R
2=simultaneously or represent independently of each other hydrogen, C
1-to C
10-alkyl, C
3-to C
12-cycloalkyl.
As technique scheme preferably, described thickening material is methylcellulose gum.
As technique scheme preferably, described flow agent is acrylic acid or the like flow agent.
Beneficial effect of the present invention is: it adds carbamide derivative in dicy-curing agent is promotor, reduces solidification value, shortens set time.Silicon-dioxide hardness is high, as carrier, be conducive to that solidifying agent and epoxy resin can mix simultaneously evenly, improve the contact area of the two, and then improve the performance of solidifying agent.Therefore to obtain the curing performance that can address the above problem good in the present invention, and solidification value is low, and storage stability is good, adaptable solidifying agent.And epoxypaint of the present invention is usingd epoxy resin lalent solidifying agent as base-material, be mixed with compositions such as epoxy resin, flow agent, defoamer and thickening materials that to have solidification value low, set time is short, viscosity is low, smooth, smooth, even, easy to use, and the good epoxypaint of storage stability.
Embodiment:
Embodiment mono-:
Epoxy resin lalent solidifying agent includes following parts by weight of component: Dyhard RU 100 80, urea 30, silicon-dioxide 40, fibrous magnesium silicate 10, polyglycidyl ether 10.
In the present embodiment, the effect of urea is the solidification value that reduces solidifying agent, shortens set time.The effect of above-mentioned thinner polyglycidyl ether is to reduce viscosity.
Embodiment bis-:
Epoxy resin lalent solidifying agent includes following parts by weight of component: Dyhard RU 100 90,1, and 1-dimethyl urea 50, silicon-dioxide 40～60, fibrous magnesium silicate 10～30, acetone 10～20,
In the present embodiment, the effect of 1,1-dimethyl urea is the solidification value that reduces solidifying agent, shortens set time.The effect of above-mentioned thinner acetone is to reduce viscosity.
Embodiment tri-:
An epoxypaint, every 100 parts of water comprise the following ingredients forming by mass percentage: epoxy resin 40%, solidifying agent 15%, pigment 10%, defoamer 15%, thickening material 10%, flow agent 10%.
Solidifying agent is the epoxy resin lalent solidifying agent that embodiment mono-obtains, and its solidification value is low, and set time is short.Thickening material is methylcellulose gum.Flow agent is acrylic acid or the like flow agent.
Embodiment tetra-:
An epoxypaint, every 100 parts of water comprise the following ingredients forming by mass percentage: epoxy resin 50%, solidifying agent 20%, pigment 15%, defoamer 5%, thickening material 5%, flow agent 5%.
Solidifying agent is the epoxy resin lalent solidifying agent that embodiment bis-obtains, and its solidification value is low, and set time is short.Thickening material is methylcellulose gum.Flow agent is acrylic acid or the like flow agent.
Package stability measurement result is as shown in table 1
Table 1
Storage temperature (℃) 0 25 40
Period of storage (moon) embodiment 3 13 5.5 1.2
Period of storage (moon) embodiment 4 12.8 5.3 1.1
Period of storage be can not melt-flow film forming after paint heating time.
Solidification value and set time measurement result as shown in table 2
Table 2
Solidification value (℃) 120 140 160
Set time (minute) embodiment 3 85 45 15
Set time (minute) embodiment 4 80 43 13
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. an epoxy resin lalent solidifying agent, it is characterized in that, it includes following parts by weight of component: Dyhard RU 100 80～90, carbamide derivative 30～50, silicon-dioxide 40～60, fibrous magnesium silicate 10～30, thinner 10～20, carbamide derivative is as the promotor of Dyhard RU 100, and its structural formula is:
R
1, R
2=simultaneously or represent independently of each other hydrogen, C
1-to C
10-alkyl, C
3-to C
12-cycloalkyl.
2. epoxy resin lalent solidifying agent according to claim 1, is characterized in that: described R
1, R
2=simultaneously or represent independently of each other hydrogen, methyl, ethyl.
3. epoxy resin lalent solidifying agent according to claim 1, is characterized in that: described thinner is polyglycidyl ether or acetone.
4. an epoxypaint, is characterized in that: every 100 parts of water comprise the following ingredients forming by mass percentage: epoxy resin 40%-55%, epoxy resin lalent solidifying agent 10%-20%, pigment 10%-20%, defoamer 5%-15%, thickening material 5%-15%, flow agent 5%-15%; Wherein, epoxy resin lalent solidifying agent includes following parts by weight of component: Dyhard RU 100 80～90, carbamide derivative 30～50, silicon-dioxide 40～60, fibrous magnesium silicate 10～30, thinner 10～20, carbamide derivative is as the promotor of Dyhard RU 100, and its structural formula is:
R
1, R
2=simultaneously or represent independently of each other hydrogen, C
1-to C
10-alkyl, C
3-to C
12-cycloalkyl.
5. epoxypaint according to claim 4, is characterized in that; Described thickening material is methylcellulose gum.
6. epoxypaint according to claim 4, is characterized in that: described flow agent is acrylic acid or the like flow agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563916.3A CN103665324B (en) | 2013-11-14 | 2013-11-14 | A kind of epoxy resin lalent solidifying agent and corresponding epoxypaint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563916.3A CN103665324B (en) | 2013-11-14 | 2013-11-14 | A kind of epoxy resin lalent solidifying agent and corresponding epoxypaint |
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| Publication Number | Publication Date |
|---|---|
| CN103665324A true CN103665324A (en) | 2014-03-26 |
| CN103665324B CN103665324B (en) | 2015-10-07 |
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|---|---|---|---|
| CN201310563916.3A Expired - Fee Related CN103665324B (en) | 2013-11-14 | 2013-11-14 | A kind of epoxy resin lalent solidifying agent and corresponding epoxypaint |
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| CN (1) | CN103665324B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945599A (en) * | 2015-06-18 | 2015-09-30 | 常州大学 | Latent epoxy resin curing-foaming agent and method for preparing the same |
| CN105037688A (en) * | 2015-06-23 | 2015-11-11 | 陈良伢 | Latent curing agent and preparation method thereof |
| CN107746456A (en) * | 2017-09-19 | 2018-03-02 | 合肥惠科金扬科技有限公司 | A kind of AMOLED display screens epoxy curing agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798787A (en) * | 2003-05-30 | 2006-07-05 | 底古萨股份公司 | Use of urea derivatives as accelerators for epoxy resins |
| CN101215453A (en) * | 2007-12-28 | 2008-07-09 | 中电电气集团有限公司 | Adhesive for middle-temperature solidifying epoxy pre-dipping material and preparation method thereof |
| CN101679828A (en) * | 2007-04-11 | 2010-03-24 | 陶氏环球技术公司 | heat-resistant structural epoxy resins |
-
2013
- 2013-11-14 CN CN201310563916.3A patent/CN103665324B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798787A (en) * | 2003-05-30 | 2006-07-05 | 底古萨股份公司 | Use of urea derivatives as accelerators for epoxy resins |
| CN101679828A (en) * | 2007-04-11 | 2010-03-24 | 陶氏环球技术公司 | heat-resistant structural epoxy resins |
| CN101215453A (en) * | 2007-12-28 | 2008-07-09 | 中电电气集团有限公司 | Adhesive for middle-temperature solidifying epoxy pre-dipping material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945599A (en) * | 2015-06-18 | 2015-09-30 | 常州大学 | Latent epoxy resin curing-foaming agent and method for preparing the same |
| CN104945599B (en) * | 2015-06-18 | 2017-03-01 | 常州大学 | A kind of latency epoxy resin cure foaming agent and preparation method thereof |
| CN105037688A (en) * | 2015-06-23 | 2015-11-11 | 陈良伢 | Latent curing agent and preparation method thereof |
| CN107746456A (en) * | 2017-09-19 | 2018-03-02 | 合肥惠科金扬科技有限公司 | A kind of AMOLED display screens epoxy curing agent |
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| Publication number | Publication date |
|---|---|
| CN103665324B (en) | 2015-10-07 |
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Granted publication date: 20151007 Termination date: 20211114 |