CN101654606A - Epoxy adhesive and preparation method thereof - Google Patents
Epoxy adhesive and preparation method thereof Download PDFInfo
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- CN101654606A CN101654606A CN200910308497A CN200910308497A CN101654606A CN 101654606 A CN101654606 A CN 101654606A CN 200910308497 A CN200910308497 A CN 200910308497A CN 200910308497 A CN200910308497 A CN 200910308497A CN 101654606 A CN101654606 A CN 101654606A
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Abstract
The invention discloses an epoxy adhesive and a preparation method thereof. The epoxy adhesive comprises a component A and a component B, wherein the component A comprises the following components inpercentage by weight: 100 of bisphenol A epoxy resin, 10-20 of diluent, 0.05-0.1 of pigment, 0.1-1 of defoaming agent, 0-20 of packing, 1-3 of coupling agent and 1-5 of nano powder; and the componentB comprises the following components in percentage by weight: 100 of curing agent, 0.1-1 of defoaming agent and 1-3 of nano powder. The invention is applied to soak/bond a carbon fiber composite material in reinforcement of a concrete structure, solves the problem of leading bubbles in the stirring processes of production and use of adhesive and can ensure favorable thixotropy in the constructionphase of the adhesive, leads an adhesive layer between a concrete basal body and carbon fiber cloth to be even and full and have high bonding strength, and further ensures the construction quality ofthe reinforcement of the concrete structure.
Description
Technical field
The present invention relates to a kind of epoxy adhesive and preparation method thereof.Particularly a kind of carbon fiber composite wood dipping/bonding epoxy adhesive and preparation method thereof that is applied in the concrete structure reinforcement.
Background technology
Carbon fiber composite wood dipping/bonding sticks with glue the gluing system of two component epoxy that self-vulcanizing is generally adopted in agent.The A component is base-material with Resins, epoxy, and the B component is mainly solidifying agent.It is closely related that the strengthening quality of carbon fiber reinforced concrete structure and carbon fiber composite wood dipping/bonding stick with glue the rheological characteristics of agent A, B component glue.The A of existing common carbon fiber composite wood dipping/bonding usefulness epoxy adhesive, the mixed viscosity of B component is low, thixotropy is poor, in reinforcing process, implement vertical surface, trickle easily and fall when facing upward the construction brushing, cause starved between concrete substrate and the carbon cloth, bondline thickness inequality, adhesive strength are low.In order to make glue have good thixotropy, the special permission of day disclosure is clear and 63 (1988)-156.817 used through the aerosil of hydrophobic processing and silica powder as the filler of epoxy adhesive, has reduced epoxy adhesive thixotropic loss in storage process.But stable thixotropy is introduced glue in producing whipping process bubble has no way of eliminating.In addition, this kind hydrophobic type aerosil added in the A component glue mix with the B component again, mix the back glue and will sharply descend in gelation process medium viscosity and thixotropy.China invention ZL96100747.8 discloses and has a kind ofly dropped down the pasty state epoxy adhesive of properties-correcting agent with polybutylene terephthalate or polybutylene terephthalate segmented copolymer as anti-current, and this pasty state epoxy adhesive has stable sag resistance and its sag resistance does not disappear with the prolongation of period of storage.Yet the paste adhesive that this kind thixotropy is stable also can not avoid glue to introduce the problem of bubble in the whipping process of producing and using, and the existence meeting of bubble directly influence is brushing when constructing glue to the infiltration speed and the perviousness of carbon fiber plate.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of epoxy adhesive and preparation method thereof is provided, can satisfy the different process performance requriements with viscosity and the thixotropy index of realizing A, B two components tackiness agent in production, storage and the mixed use of two components, can solve glue and in the whipping process of producing, using, introduce the difficult problem of bubble, can guarantee that again the tackiness agent construction stage has good thixotropy.
Purpose of the present invention realizes with following technical scheme, comprise A component and B component, described A component is made up of following component and weight ratio: bisphenol A type epoxy resin 100, thinner 10-20, pigment 0.05-0.1, defoamer 0.1-1, filler 0-20, coupling agent 1-3, nano-powder 1-5; Described B component is made up of following component and weight ratio: solidifying agent 100, defoamer 0.1-1, nano-powder 1-3.
Resins, epoxy in the described A component is bisphenol A type epoxy resin E51.
Nano-powder in the described A component is the hydrophilic aerosil, and the nano-powder in the described B component is hydrophobic type aerosil or nano aluminium oxide.
Thinner, pigment, defoamer, filler, coupling agent in the described A component is the product commonly used in the existing epoxy adhesive A component; Solidifying agent, defoamer in the described B component is the product commonly used in the existing epoxy adhesive B component.
The viscosity of described A component is less than 4.00Pas; Thixotropy index is 1.0-2.0; The viscosity of B component is less than 5.50Pas; Thixotropy index is 1.0-2.0; A, B component are with weight ratio=100: after the 30-60 mixed, the viscosity of mixed glue solution is less than 4.00Pas, and thixotropy index is greater than 2.0.
The preparation method of epoxy adhesive may further comprise the steps:
(1) preparation of A component:
(1) is respectively according to weight part: 100 parts of bisphenol A type epoxy resins, thinner 10-20 part, pigment 0.05-0.1 part, defoamer 0.1-1 part, filler 0-20 part, coupling agent 1-3 part, nano-powder 1-5 part raw materials weighing;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) is respectively according to weight part: 100 parts in solidifying agent, defoamer 0.1-1 part, nano-powder 1-3 part raw materials weighing;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
The present invention has introduced nano-powder of different nature in A component and B component, at A, before B two components are unmixed, the viscosity of two components is all lower, and the glue that helps A, B two components is introduced into the timely eliminating of bubble in producing whipping process; And after A, B two components are mixed, because the interaction in two components between the different properties nano-powder, between other moietys of each nano-powder and another component, make adhesive system promptly obtain the viscosity that suits and good thixotropy, and the thixotropy of system remain unchanged in whole gelation process.Epoxy adhesive of the present invention is applied to the carbon fiber composite wood dipping/bonding in the concrete structure reinforcement, glue can effectively soak into carbon fiber plate during the brushing construction, trickling the time does not take place and falls in vertical surface, the construction of facing upward, thereby make that glue-line between concrete substrate and the carbon cloth is evenly full, cohesive strength is high, has further guaranteed the construction quality of concrete structure reinforcement.
Embodiment
Embodiment 1:
(1) preparation of A component:
(1) raw materials weighing: 100 kilograms of E51 Resins, epoxy; 18 kilograms of thinner butylglycidyl ethers; 0.08 kilogram epoxy mill base pigment; 0.3 kilogram defoamer BMC806R; 10 kilograms of filler-calcium carbonates; 2 kilograms of coupling agent KH-560; 5 kilograms of nano-powder hydrophilic aerosils;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) raw materials weighing: 70 kilograms of Versamids 651; 30 kilograms of modified fatty amines 593; 0.3 kilogram defoamer BMC806R:2 kilogram nano-powder hydrophobic type aerosil;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
Use NDJ-1 type rotational viscosimeter to record that A component gelatin viscosity is 3.30Pas when (23 ± 0.5) ℃, thixotropy index is 1.44; B component viscosity is 5.20Pas, and thixotropy index is 1.72.A, B component with the mixed of 100: 50 (weight ratio) after viscosity be 3.64Pas, thixotropy index is increased to 2.42.In whole gelation process, the viscosity of mixed glue solution maintains 3.60Pas-3.90Pas all the time, and thixotropy index is controlled between the 2.4-2.5 always.
Embodiment 2:
(1) preparation of A component:
(1) raw materials weighing: 100 kilograms of E51 Resins, epoxy; 10 kilograms of thinner benzyl glycidyl ethers; 0.05 kilogram epoxy mill base pigment; 1 kilogram of defoamer BYK-054; 10 kilograms of filler-silicon dioxides; 3 kilograms of coupling agent KH-550; 1 kilogram of nano-powder hydrophilic aerosil;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) raw materials weighing: 100 kilograms of Versamids 651; 0.5 kilogram defoamer BYK-054:1 kilogram nano-powder hydrophobic type aerosil;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
Use NDJ-1 type rotational viscosimeter to record that A component gelatin viscosity is 2.43Pas when (23 ± 0.5) ℃, thixotropy index is 1.28; B component viscosity is 5.50Pas, and thixotropy index is 1.80.A, B component with the mixed of 100: 60 (weight ratio) after viscosity be 3.16Pas, thixotropy index is increased to 2.25.In whole gelation process, the viscosity of mixed glue solution maintains 3.20Pas-3.40Pas all the time, and thixotropy index is controlled between the 2.2-2.3 always.
Embodiment 3:
(1) preparation of A component:
(1) raw materials weighing: 100 kilograms of E51 Resins, epoxy; 20 kilograms of thinner benzyl glycidyl ethers; 0.1 kilogram epoxy mill base pigment; 1 kilogram of defoamer BYK-A500; 12 kilograms of filler cement; 2 kilograms of coupling agent KH-560; 5 kilograms of nano-powder hydrophilic aerosils;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) raw materials weighing: 100 kilograms of modified phenolic amine T31; 0.6 kilogram defoamer BYK-A500:3 kilogram nano-powder nano aluminium oxide;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
Use NDJ-1 type rotational viscosimeter to record that A component gelatin viscosity is 3.42Pas when (23 ± 0.5) ℃, thixotropy index is 1.63; B component viscosity is 4.13Pas, and thixotropy index is 1.34.A, B component with the mixed of 100: 30 (weight ratio) after viscosity be 3.51Pas, thixotropy index is increased to 2.36.In whole gelation process, the viscosity of mixed glue solution maintains 3.50Pas-3.80Pas all the time, and thixotropy index is controlled between the 2.3-2.4 always.
Embodiment 4:
(1) preparation of A component:
(1) raw materials weighing: 100 kilograms of E51 Resins, epoxy; 15 kilograms of thinner butylglycidyl ethers; 0.05 kilogram epoxy mill base pigment; 0.1 kilogram defoamer BYK-052; 15 kilograms of filler talcum powder; 1 kilogram of coupling agent KH-550; 3 kilograms of nano-powder hydrophilic aerosils;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) raw materials weighing: 70 kilograms of modified phenolic amine T31; 30 kilograms of modified fatty amines 593; 0.1 kilogram defoamer BYK-052:2 kilogram nano-powder nano aluminium oxide;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
Use NDJ-1 type rotational viscosimeter to record that A component gelatin viscosity is 3.38Pas when (23 ± 0.5) ℃, thixotropy index is 1.51; B component viscosity is 3.85Pas, and thixotropy index is 1.29.A, B component with the mixed of 100: 50 (weight ratio) after viscosity be 3.41Pas, thixotropy index is increased to 2.27.In whole gelation process, the viscosity of mixed glue solution maintains 3.40Pas-3.70Pas all the time, and thixotropy index is controlled between the 2.2-2.3 always.
Claims (5)
1. epoxy adhesive, comprise A component and B component, it is characterized in that described A component is made up of following component and weight part: bisphenol A type epoxy resin 100, thinner 10-20, pigment 0.05-0.1, defoamer 0.1-1, filler 0-20, coupling agent 1-3, nano-powder 1-5; Described B component is made up of following component and weight ratio: solidifying agent 100, defoamer 0.1-1, nano-powder 1-3.
2. epoxy adhesive according to claim 1 is characterized in that, the bisphenol A type epoxy resin in the described A component is E51.
3. epoxy adhesive according to claim 1 is characterized in that, the nano-powder in the described A component is the hydrophilic aerosil, and the nano-powder in the described B component is hydrophobic type aerosil or nano aluminium oxide.
4. epoxy adhesive according to claim 1 is characterized in that the viscosity of described A component is less than 4.00Pas; Thixotropy index is 1.0-2.0; The viscosity of described B component is less than 5.50Pas; Thixotropy index is 1.0-2.0; A, B component are with weight ratio=100: after the 30-60 mixed, the viscosity of mixed glue solution is less than 4.00Pas, and thixotropy index is greater than 2.0.
5. the preparation method of the described epoxy adhesive of claim 1 is characterized in that, may further comprise the steps:
(1) preparation of A component:
(1) is respectively according to weight part: 100 parts of bisphenol A type epoxy resins, thinner 10-20 part, pigment 0.05-0.1 part, defoamer 0.1-1 part, filler 0-20 part, coupling agent 1-3 part, nano-powder 1-5 part raw materials weighing;
(2) the load weighted Resins, epoxy of (1) step, thinner, defoamer, coupling agent are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted pigment of (1) step, filler, nano-powder input (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the A component;
(2) preparation of B component:
(1) is respectively according to weight part: 100 parts in solidifying agent, defoamer 0.1-1 part, nano-powder 1-3 part raw materials weighing;
(2) the load weighted solidifying agent of (1) step, defoamer are dropped in the stirred reactor, high speed dispersion is to even;
(3) with the load weighted nano-powder input of (1) step (2) step material, high speed dispersion is to even;
(4) (3) step material is ground twice through three-roll grinder, promptly make the B component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009103084972A CN101654606B (en) | 2009-10-20 | 2009-10-20 | Epoxy adhesive and preparation method thereof |
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| CN2009103084972A CN101654606B (en) | 2009-10-20 | 2009-10-20 | Epoxy adhesive and preparation method thereof |
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| CN101654606A true CN101654606A (en) | 2010-02-24 |
| CN101654606B CN101654606B (en) | 2012-03-28 |
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| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
| CN101914359A (en) * | 2010-09-04 | 2010-12-15 | 山西天能科技有限公司 | Bar glue |
| CN102408860A (en) * | 2011-10-19 | 2012-04-11 | 湖南固特邦土木技术发展有限公司 | Flexible epoxy adhesive and application |
| CN102980800A (en) * | 2011-09-05 | 2013-03-20 | 远东电缆有限公司 | Fixing device and method for breaking test of carbon fiber composite core aerial conductor |
| CN103436212A (en) * | 2013-09-05 | 2013-12-11 | 中国电子科技集团公司第二十八研究所 | Room-temperature-curing structural adhesive for composite plates |
| CN104245875A (en) * | 2012-04-26 | 2014-12-24 | 陶氏环球技术有限责任公司 | Epoxy adhesive composition |
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| CN1239663C (en) * | 2004-04-23 | 2006-02-01 | 阚小勇 | Making method of epoxy resin adhesive for building |
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| CN101851481A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
| CN101851481B (en) * | 2010-05-22 | 2013-03-20 | 东方电气集团东方汽轮机有限公司 | Epoxy resin adhesive for manufacturing blades of wind driven generator and preparation method thereof |
| CN101914359B (en) * | 2010-09-04 | 2013-01-09 | 山西天能科技股份有限公司 | Bar glue |
| CN101914359A (en) * | 2010-09-04 | 2010-12-15 | 山西天能科技有限公司 | Bar glue |
| CN102980800A (en) * | 2011-09-05 | 2013-03-20 | 远东电缆有限公司 | Fixing device and method for breaking test of carbon fiber composite core aerial conductor |
| CN102408860A (en) * | 2011-10-19 | 2012-04-11 | 湖南固特邦土木技术发展有限公司 | Flexible epoxy adhesive and application |
| CN102408860B (en) * | 2011-10-19 | 2013-03-06 | 湖南固特邦土木技术发展有限公司 | Flexible epoxy adhesive and application |
| CN104245875A (en) * | 2012-04-26 | 2014-12-24 | 陶氏环球技术有限责任公司 | Epoxy adhesive composition |
| CN104245875B (en) * | 2012-04-26 | 2016-09-28 | 蓝立方知识产权有限责任公司 | Epoxy adhesive composition |
| CN103436212A (en) * | 2013-09-05 | 2013-12-11 | 中国电子科技集团公司第二十八研究所 | Room-temperature-curing structural adhesive for composite plates |
| CN107502261A (en) * | 2017-09-14 | 2017-12-22 | 广州欣凯化工科技有限公司 | A kind of freeze proof resin glue of high temperature resistant for woodwork |
| CN107502261B (en) * | 2017-09-14 | 2020-07-14 | 广州欣凯化工科技有限公司 | High-temperature-resistant anti-freezing resin adhesive for wooden products |
| CN111592847A (en) * | 2020-03-21 | 2020-08-28 | 东莞市大乘建筑工程技术有限公司 | Carbon fiber cloth reinforced bonding material and reinforcing method |
| CN112280510A (en) * | 2020-10-10 | 2021-01-29 | 浙江瑞特新材料科技有限公司 | Bar planting glue and preparation method thereof |
| CN112481817A (en) * | 2020-11-27 | 2021-03-12 | 中宝(西安)科技集团有限公司 | Carbon fiber heat insulation material and preparation method thereof |
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