CN104817993A - Antistatic epoxy adhesive for non-excavation repair technology and preparation method of antistatic epoxy adhesive - Google Patents
Antistatic epoxy adhesive for non-excavation repair technology and preparation method of antistatic epoxy adhesive Download PDFInfo
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- CN104817993A CN104817993A CN201510264695.9A CN201510264695A CN104817993A CN 104817993 A CN104817993 A CN 104817993A CN 201510264695 A CN201510264695 A CN 201510264695A CN 104817993 A CN104817993 A CN 104817993A
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Abstract
The invention discloses an antistatic epoxy adhesive for a non-excavation repair technology. The antistatic epoxy adhesive consists of a material A and a material B, wherein the material A comprises the following components in parts by weight: 50.0-85.0 parts of epoxy resin, 0.1-10.0 parts of an epoxy active diluent, 5.0-10.0 parts of an antistatic agent KF-101 and 1.0-2.0 parts of a dispersant; and the material B is 20.0-30.0 weight parts of blocked isocyanate. A preparation method of the antistatic epoxy adhesive comprises the following steps: adding the dispersant into the epoxy resin in a low-speed dispersion state; then adding the antistatic agent and the epoxy active diluent; adjusting the dispersion speed and dispersing for 10 minutes; then adding the material B in a medium-speed dispersion state; and dispersing and stirring uniformly, and then pouring to obtain a finished product. The adhesive simultaneously has good antistatic property and can be applicable to pipelines of the non-excavation repair technology.
Description
Technical field
The present invention relates to material and no-dig technique pipe rehabilitation technology field, particularly a kind of antistatic epoxy adhesive for non-excavation repairing technique.
Background technology
At present, repair shabby pipeline due to digging mode and be vulnerable to many restrictions such as traffic obstruction and adjacent conduit, optical cable and buildings, replaced by non-excavation repairing technique gradually.No-dig technique pipe rehabilitation technology can directly pass through above ground structure, railway, river course and highway, does not affect Road Transportation, not welding buildings, short construction period, cost saving during construction.Trenchless technology has economic and social benefit more carefully.Even if no-dig technique pipeline rehabilitation is in China's development rapidly in recent years, successively in oil, Gas Industry, the reparation of public works water supply and sewerage pipeline and middle application of renovating.
No-dig technique pipe rehabilitation technology is divided into multiple, what such as last century 80, the nineties grew up turns over the reparation of lining method, it is exactly a kind of typical non-excavation repairing technique, its principle adopts textile fiber material to make tubing, anti seepage membrane coating and resin impregnation process are carried out to it, then adopt inversion method to utilize air pressure to make it to be close on old inner-walls of duct, the tubular textile of the shaping rear formation inner wall smooth of resin solidification, thus form the prevention and restoration to old pipeline.But for a long time, be faced with a large amount of hydrocarbon liquid in industry and flow through pipeline and the electrostatic accident produced.By raising Polymer Surface specific conductivity or volume conductance, high polymer material is discharged rapidly and can prevent gathering of electrostatic, and add the effective ways that static inhibitor is raising polymer surface specific conductivity.As a kind of epoxyn that CN 103602300 A provides, with the addition of N in the epoxy, N-dihydroxy ethyl stearylamine type static inhibitor, epoxyn is possessed certain antistatic property, but this tackiness agent mechanical property is poor, and particularly shearing resistance is low, and in the middle of no-dig technique pipe rehabilitation technology, sizing agent can be subject to fluxion apply cut effect by force, above-mentioned tackiness agent cannot meet service requirements.Therefore, in order to adapt to the Working environment in no-dig technique pipe technology, needing badly and providing a kind of antistatic, corrosion-resistant and there is the epoxy adhesive of excellent mechanical performances.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of antistatic epoxy adhesive for non-excavation repairing technique, this sizing agent has good static resistance, erosion resistance and mechanical property simultaneously, in the middle of the pipeline going for non-excavation repairing technique.
Antistatic epoxy adhesive for non-excavation repairing technique provided by the invention, is expected by A and B expects to form;
Described A material comprises the component of following weight part: epoxy resin 50.0 ~ 85.0 parts, epoxy active diluent 0.1 ~ 10.0 part, static inhibitor KF-1015.0 ~ 10.0 part, dispersion agent 1.0 ~ 2.0 parts;
Described B material is the blocked isocyanate of 20.0-30.0 weight part.
Preferably, described A material is made up of the component of following weight part: epoxy resin 80.0 parts, epoxy active diluent 2.0 parts, static inhibitor KF-1016.0 part, dispersion agent 2.0 parts;
Described B material is the blocked isocyanate of 25.0 weight parts.
Preferably, described epoxy resin is epoxy resin E-44.
Preferably, described blocked isocyanate is blocked isocyanate YG-75F (purchased from Donghai County according to high resin production company limited).
Preferably, described epoxy active diluent is epoxy active diluent SM-90.
Preferably, described dispersion agent is the composition of one or more in oleic acid, stearyl alcohol, Sodium dodecylbenzene sulfonate.
Each component in the present invention all directly can be buied by commercially available.
Present invention also offers the preparation method of the above-mentioned antistatic epoxy adhesive for non-excavation repairing technique, the method in turn includes the following steps:
(1) under the low speed dispersion state of 300-500r/min, dispersion agent is joined in epoxy resin, then add static inhibitor KF-101 and epoxy active diluent, regulate rate of dispersion to 500-1000r/min, disperse 10 minutes;
(2) under the middling speed dispersion state of 500-800r/min, add B material, filling after dispersion stirs, namely obtain the antistatic epoxy adhesive for non-excavation repairing technique.
Antistatic epoxy adhesive for non-excavation repairing technique provided by the invention, has following beneficial effect:
(1) the KF-101 static inhibitor of He'nan University's research and development is adopted, a kind of ether structure, poly-hydroxy, cationic permanent antistatic agent, after KF-101 electrostatic agent disperses in the sizing agent system of the application, can be formed in the distribution of fine muscle shape on matrix resin surface under lower shear tension effect, namely stratiform dispersed texture is formed, at matrix resin centre portions then in spherical distribution, above-mentioned dispersed texture effectively can reduce the surface resistivity of sizing agent, minimumly can reach 10
7Ω cm, realizes antistatic property.
(2) hydroxyl of high molecular expoxy resin and the isocyanate reaction of end-blocking is utilized, under low temperature curing conditions (90 DEG C, 30 minutes), blocked isocyanate deblocking, with hydroxyl reaction in epoxy resin, generate polyurethane(s), thus make epoxy adhesive produce the bonding repairing effect of high crosslink density, high strength, high corrosion resistance.
(3) the present invention is by the scientific and reasonable compatibility of each component and proportioning, overcome the defect cannot taking into account sizing agent mechanical property, antistatic property and corrosion resistance nature in prior art, make the sizing agent prepared meet the user demand of no-dig technique pipe rehabilitation technology.
Embodiment
In order to make those skilled in the art person understand technical scheme of the present invention better, below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Prepare burden by the component of following weight part:
A expects:
Epoxy resin E-44 80.0 parts
Epoxy active diluent SM-90 10.0 parts
B expects:
Blocked isocyanate YG-75F 25.0 parts
Preparation method carries out as follows: under the low speed dispersion state of 300r/min, add epoxy active diluent SM-90 in epoxy resin E-44, regulates rate of dispersion to 1000r/min, disperses 10 minutes; Then under the middling speed dispersion state of 600r/min, add B material, filling after dispersion stirs, obtain sizing agent product.(the present embodiment is comparative example)
Embodiment 2
Prepare burden by the component of following weight part:
A expects:
B expects:
Blocked isocyanate YG-75F 25.0 parts
Preparation method carries out as follows: under the low speed dispersion state of 500r/min, dispersion agent stearyl alcohol is joined in epoxy resin E-44, then add static inhibitor KF-101 and epoxy active diluent SM-90, regulate rate of dispersion to 800r/min, disperse 10 minutes; Then under the middling speed dispersion state of 600r/min, add B material, filling after dispersion stirs, namely obtain the antistatic epoxy adhesive for non-excavation repairing technique.
Embodiment 3
Prepare burden by the component of following weight part:
A expects:
B expects:
Blocked isocyanate YG-75F 25.0 parts
Preparation method carries out as follows: under the low speed dispersion state of 400r/min, dispersion agent Sodium dodecylbenzene sulfonate is joined in epoxy resin E-44, then add static inhibitor KF-101 and epoxy active diluent SM-90, regulate rate of dispersion to 600r/min, disperse 10 minutes; Then under the middling speed dispersion state of 800r/min, add B material, filling after dispersion stirs, namely obtain the antistatic epoxy adhesive for non-excavation repairing technique.
Test example 1
Sizing agent Performance Detection: Mechanics Performance Testing adopts universal testing machine (CMT-6105) and JB-30A shock-testing machine.Tensile shear strength test loads with the constant speed of 10 ± 2mm/min, maximum load during record sample shear fracture.Impact bending strength test adopts cylinder sample (Φ 10mm × 52mm) to sticky, and shock-testing machine carries out impact toughness test.Resistivity measurement is coated on metal substrate by sizing agent to form coating, then measures the surface resistivity of coatingsurface.Logging is in the middle of following table 1.
Table 1 sizing agent performance test results
Above antistatic epoxy adhesive for non-excavation repairing technique provided by the present invention and preparation method thereof is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention.These improve and modify and also should fall in the protection domain of the claims in the present invention.
Claims (7)
1. for an antistatic epoxy adhesive for non-excavation repairing technique, it is characterized in that, expected to form by A material and B;
Described A material comprises the component of following weight part: epoxy resin 50.0 ~ 85.0 parts, epoxy active diluent 0.1 ~ 10.0 part, static inhibitor KF-101 5.0 ~ 10.0 parts, dispersion agent 1.0 ~ 2.0 parts;
Described B material is the blocked isocyanate of 20.0-30.0 weight part.
2. the antistatic epoxy adhesive for non-excavation repairing technique according to claim 1, it is characterized in that, described A material is made up of the component of following weight part: epoxy resin 80.0 parts, epoxy active diluent 2.0 parts, static inhibitor KF-101 6.0 parts, dispersion agent 2.0 parts;
Described B material is the blocked isocyanate of 25.0 weight parts.
3. the antistatic epoxy adhesive for non-excavation repairing technique according to claim 1 and 2, is characterized in that, described epoxy resin is epoxy resin E-44.
4. the antistatic epoxy adhesive for non-excavation repairing technique according to claim 1 and 2, is characterized in that, described blocked isocyanate is blocked isocyanate YG-75F.
5. the antistatic epoxy adhesive for non-excavation repairing technique according to claim 1 and 2, is characterized in that, described dispersion agent is the composition of one or more in oleic acid, stearyl alcohol, Sodium dodecylbenzene sulfonate.
6. the antistatic epoxy adhesive for non-excavation repairing technique according to claim 1 and 2, is characterized in that, described epoxy active diluent is epoxy active diluent SM-90.
7. described in claim 1 for a preparation method for the antistatic epoxy adhesive of non-excavation repairing technique, it is characterized in that, in turn include the following steps:
(1) under the low speed dispersion state of 300-500r/min, dispersion agent is joined in epoxy resin, then add static inhibitor KF-101 and epoxy active diluent, regulate rate of dispersion to 500-1000r/min, disperse 10 minutes;
(2) under the middling speed dispersion state of 500-800r/min, add B material, filling after dispersion stirs, namely obtain the antistatic epoxy adhesive for non-excavation repairing technique.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510264695.9A CN104817993A (en) | 2015-05-22 | 2015-05-22 | Antistatic epoxy adhesive for non-excavation repair technology and preparation method of antistatic epoxy adhesive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510264695.9A CN104817993A (en) | 2015-05-22 | 2015-05-22 | Antistatic epoxy adhesive for non-excavation repair technology and preparation method of antistatic epoxy adhesive |
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| CN104817993A true CN104817993A (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041870A (en) * | 2019-04-30 | 2019-07-23 | 广东银浩市政工程有限公司 | It is a kind of for draining the no-dig technique pipeline rehabilitation adhesive of pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2248837B1 (en) * | 2009-05-04 | 2013-03-20 | fischerwerke GmbH & Co. KG | Adhesives based on silane terminated-isocyanate |
| CN103602300A (en) * | 2013-11-08 | 2014-02-26 | 福州大学 | High-barrier, flame-retardant and anti-electrostatic epoxy-resin adhesive and preparation method thereof |
| CN104449512A (en) * | 2014-12-19 | 2015-03-25 | 北京京能恒基新材料有限公司 | Adhesive for repair technology of non-excavation linings and preparation method thereof |
-
2015
- 2015-05-22 CN CN201510264695.9A patent/CN104817993A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2248837B1 (en) * | 2009-05-04 | 2013-03-20 | fischerwerke GmbH & Co. KG | Adhesives based on silane terminated-isocyanate |
| CN103602300A (en) * | 2013-11-08 | 2014-02-26 | 福州大学 | High-barrier, flame-retardant and anti-electrostatic epoxy-resin adhesive and preparation method thereof |
| CN104449512A (en) * | 2014-12-19 | 2015-03-25 | 北京京能恒基新材料有限公司 | Adhesive for repair technology of non-excavation linings and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吕咏梅: "抗静电剂开发与生产现状", 《中国石油和化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041870A (en) * | 2019-04-30 | 2019-07-23 | 广东银浩市政工程有限公司 | It is a kind of for draining the no-dig technique pipeline rehabilitation adhesive of pipeline |
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