CN1629205A - Epoxy resin curing agent - Google Patents
Epoxy resin curing agent Download PDFInfo
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- CN1629205A CN1629205A CN 200310104046 CN200310104046A CN1629205A CN 1629205 A CN1629205 A CN 1629205A CN 200310104046 CN200310104046 CN 200310104046 CN 200310104046 A CN200310104046 A CN 200310104046A CN 1629205 A CN1629205 A CN 1629205A
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- China
- Prior art keywords
- curing agent
- tertiary amine
- aliphatic amide
- binary aliphatic
- epoxy curing
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- Epoxy Resins (AREA)
Abstract
The invention discloses a category of amines curative, especially for solidifying epoxy resins in low-temperature and underwater operation, which comprises the constituents (by weight ratio) of phenolic resins, polymer of binary fat amine and aryl tertiary amine, flexibilizer and diluent by (80-100) : (30-40) : 10 : 10. The invention has the advantages of high shearing strength, high drawing withstanding strength and small toxicity.
Description
Technical field
The present invention relates to a kind of amine curing agent, especially for the medicament of the epoxy resin cure of low temperature, underwater construction operation.
Background technology
At present, synthetic epoxy resin generally all will add solidifying agent and toughner, with the use properties of further raising Resins, epoxy.Generally adopt quadrol to make solidifying agent in the prior art.When this each medicament is used for epoxy resin cure, can volatilize a kind of more supervirulent irritant gas, skin is had corrosive nature, jeopardize health of human body, its application conditions is also limited in addition, promptly can not use in low temperature (below 5 ℃) and underwater operation or wet environment.In construction process, cause the curing operation environment abominable, dangerous for above-mentioned reasons, curing speed is low, has a strong impact on construction speed and quality, has also improved construction cost relatively; Simultaneously, the mechanical strength of above-mentioned solidifying agent is also lower.In amine curing agent, the kind of domestic existence has T
31, Tianjin 703, JA-1, NJ-1, NJ-2,810 etc., their common shortcomings are that all mechanical strength is low, toxicity is bigger.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art and the medicament of a kind of high effect nontoxic, adaptability is strong, mechanical property is good epoxy resin cure is provided.
The object of the present invention is achieved like this:
A kind of epoxy curing agent, form by the component of following weight ratio: resol: the polymkeric substance of binary aliphatic amide and fragrant tertiary amine: toughner: thinner=(80-100): (30-40): 10: 10.
Above-mentioned epoxy curing agent is to produce like this:
(1) generates resol with phenol and formaldehyde reaction;
(2) binary aliphatic amide and fragrant tertiary amine are pressed the binary aliphatic amide: fragrant tertiary amine=(10-90): weight ratio configuration (90-10), under 20 ℃ of conditions, carry out polyreaction, resulting polymers is standby;
(3) it is standby toughner and thinner to be mixed the back by 1: 1 part by weight;
(4) resol is weighed back the adding in the jacketed reaction stirrer, the polymkeric substance that under agitation adds gained in (2) step, reaction is 1.5-2 hour under 50-60 ℃ of condition, the mixture that adds gained in (3) step again, under 50-60 ℃ of condition, reacted 2 hours again, be cooled to 28-30 ℃ then and promptly get epoxy curing agent.
The present invention has following advantage than prior art:
Because the present invention does not contain objectionable impuritiess such as free phenol in conjunction with closely, does not almost have the volatilization irritant gas and overflow, thereby overcome severe environment situation when constructing, can protect effectively that the operator's is healthy; Simultaneously, it can solidify in the atmosphere more than 0 ℃ under water and under the slightly oily conditions such as interface; In addition, it is to 45
#The shearing resistance of steel overlap joint and all higher to the tensile strength of LY12 duralumin (φ 16).
Embodiment
Embodiment 1: the present invention realizes by such mode:
(1) generates resol with phenol and formaldehyde reaction;
(2) with binary aliphatic amide and fragrant tertiary amine by the binary aliphatic amide: the weight ratio configuration of fragrant tertiary amine=90: 10, under 20 ℃ of conditions, carry out polyreaction, resulting polymers is standby;
(3) it is standby toughner epoxy propane butyl ether and thinner dehydrated alcohol to be mixed the back by 1: 1 part by weight;
(4) resol with 100 parts of weights adds in the jacketed reaction stirrer, under agitation add the polymkeric substance of gained in (2) steps of 30 parts of weights, reaction is 1.5-2 hour under 50-60 ℃ of condition, add the mixture of gained in (3) steps of 20 parts of weights again, under 50-60 ℃ of condition, reacted 2 hours again, be cooled to 28-30 ℃ then and promptly get epoxy curing agent.
Embodiment 2:
(1) generates resol with phenol and formaldehyde reaction;
(2) with binary aliphatic amide and fragrant tertiary amine by the binary aliphatic amide: the weight ratio configuration of fragrant tertiary amine=10: 90, under 20 ℃ of conditions, carry out polyreaction, resulting polymers is standby;
(3) it is standby toughner fourth fat and thinner dehydrated alcohol to be mixed the back by 1: 1 part by weight;
(4) resol with 80 parts of weights adds in the jacketed reaction stirrer, under agitation add the polymkeric substance of gained in (2) steps of 40 parts of weights, reaction is 1.5-2 hour under 50-60 ℃ of condition, add the mixture of gained in (3) steps of 20 parts of weights again, under 50-60 ℃ of condition, reacted 2 hours again, be cooled to 28-30 ℃ then and promptly get epoxy curing agent.
Embodiment:
(1) phenol and formaldehyde reaction generate resol;
(2) with binary aliphatic amide and fragrant tertiary amine by the binary aliphatic amide: the weight ratio configuration of fragrant tertiary amine=50: 50, under 20 ℃ of conditions, carry out polyreaction, resulting polymers is standby;
(3) mix afterwards standby by 1: 1 part by weight the hot fat of toughner and thinner acetone;
(4) resol with 90 parts of weights adds in the jacketed reaction stirrer, under agitation add the polymkeric substance of gained in (2) steps of 35 parts of weights, reaction is 1.5-2 hour under 50-60 ℃ of condition, add the mixture of gained in (3) steps of 20 parts of weights again, under 50-60 ℃ of condition, reacted 2 hours again, be cooled to 28-30 ℃ then and promptly get epoxy curing agent.
The performance comparison of explanation the present invention of following example table and prior art: (code name wherein of the present invention is CD
32)
Table 1: shearing resistance
| Solidifying agent | Condition of cure | Hardener dose, part (100 parts of E44) | Shearing resistance |
| JA-1 | Room temperature 2 days | ????20 | ????9.3 |
| JA-1 | Room temperature 2 days | ????20 | ????8.7 |
| JA-1 | Room temperature 2 days | ????20 | ????10.0 |
| T 31 | Room temperature 2 days | ????30 | ????6.7 |
| T 31 | Room temperature 2 days | ????30 | ????6.0 |
| T 31 | Room temperature 2 days | ????30 | ????5.7 |
| CD 32 | Room temperature 2 days | ????40 | ????14.7 |
| CD 32 | Room temperature 1 day | ????40 | ????12.8 |
Wherein, sample is 45 of 70*20*2
#Steel disc cleans through emery cloth polishing, acetone, is not adding work basis contrast under the coupling agent prerequisite, and the sample testing standard is undertaken by GB7214-86.
Table 2: tensile strength
| Solidifying agent | Condition of cure | Hardener dose, part (100 parts of E44) | Tensile strength | Sample material |
| ??JA-1 | Room temperature 1 day | ????18(DOB?7) | ????17.4 | 16 yuan of steel of φ |
| ??T 31 | Room temperature 2 days | ????25 | ????21 | φ 16LY12 duralumin |
| ??CD 32 | Room temperature 2 days | ????40 | ????22 | φ 16LY12 duralumin |
Table 3: toxicity contrast
| Solidifying agent | Mouse footpath mouthful LD50 (mg/kg) | 95% fiducial limit (mg/kg) |
| ??CD 32 | ????13170 | ????14790-11730 |
| ??T 31 | ????1852±1122 | |
| ??NJ-1 | ????2150 | ????1380-3360 |
| ??NJ-2 | ????1620 | ????866-3016 |
By above three tables as can be seen, the present invention has shearing resistance, tensile strength height and the little advantage of toxicity than like product.
Claims (4)
1, a kind of epoxy curing agent is characterized in that being made up of the component of following weight ratio: resol: the polymkeric substance of binary aliphatic amide and fragrant tertiary amine: toughner: thinner=(80-100): (30-40): 10: 10.
2, epoxy curing agent according to claim 1 is characterized in that described toughner is epoxy propane butyl ether or fourth fat or hot fat.
3, epoxy curing agent according to claim 1 is characterized in that described thinner is dehydrated alcohol or acetone.
4, epoxy curing agent according to claim 1 is characterized in that the weight ratio of binary aliphatic amide and fragrant tertiary amine is the binary aliphatic amide in the polymkeric substance of described binary aliphatic amide and fragrant tertiary amine: fragrant tertiary amine=(10-90): (90-10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310104046 CN1629205A (en) | 2003-12-16 | 2003-12-16 | Epoxy resin curing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310104046 CN1629205A (en) | 2003-12-16 | 2003-12-16 | Epoxy resin curing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1629205A true CN1629205A (en) | 2005-06-22 |
Family
ID=34842927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310104046 Pending CN1629205A (en) | 2003-12-16 | 2003-12-16 | Epoxy resin curing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1629205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495616A (en) * | 2016-11-10 | 2017-03-15 | 中国建材检验认证集团厦门宏业有限公司 | A kind of high-strength water-base epoxy colour self-leveling cement |
-
2003
- 2003-12-16 CN CN 200310104046 patent/CN1629205A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495616A (en) * | 2016-11-10 | 2017-03-15 | 中国建材检验认证集团厦门宏业有限公司 | A kind of high-strength water-base epoxy colour self-leveling cement |
| CN106495616B (en) * | 2016-11-10 | 2018-08-28 | 中国建材检验认证集团厦门宏业有限公司 | A kind of high-strength water-base epoxy colour self-leveling cement |
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