CN106700996A - Two-component epoxy structure adhesive and application thereof - Google Patents

Two-component epoxy structure adhesive and application thereof Download PDF

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Publication number
CN106700996A
CN106700996A CN201611205780.9A CN201611205780A CN106700996A CN 106700996 A CN106700996 A CN 106700996A CN 201611205780 A CN201611205780 A CN 201611205780A CN 106700996 A CN106700996 A CN 106700996A
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China
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component
epoxy
glue
epoxy resin
component epoxy
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CN201611205780.9A
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Inventor
方磊
周锦强
何秀冲
赵勇刚
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CHANGZHOU HUITIAN NEW MATERIAL Co Ltd
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CHANGZHOU HUITIAN NEW MATERIAL Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention relates to a two-component epoxy structure adhesive suitable for a high-speed rail car body and an application thereof. The two-component epoxy structure adhesive comprises a component A and a component B at the weight ratio of 1:(0.8-1.2); the component A is prepared from the following raw materials: 10-40% of epoxy resin, 10-40% of organosilicon-modified epoxy resin, 10-30% of nitrile rubber-modified epoxide resin, 5-30% of an epoxy diluent, 30-70% of a reinforcing filler, 1-10% of a thixotropic agent, 0.1-1% of a coupling agent and 0.1-1% of an antifoaming agent according to the total weight, and the sum of the content percentages of the raw materials is 100%; and the component B is prepared from the following raw materials: 20-60% of polyether amine polyamine, 10-40% of polyamide polyamine, 30-70% of a reinforcing filler and 1-10% of a thixotropic agent according to the total weight and the sum of the content percentages of the raw materials is 100%. The structure adhesive has high bonding strength, good tenacity, shock resistance, vibration resistance and high-and low-temperature shock resistance, can be used for bonding of a metal section of an aluminum alloy car body, and can meet the strict requirements of bonding the high-speed rail car body.

Description

A kind of two component epoxy structure glue and application thereof
Technical field
The invention belongs to epoxy adhesive field, more particularly to a kind of two component epoxy structure glue suitable for high ferro car body And application thereof.
Background technology
From first 350 kilometers/hour of the China on the 1st of August in 2008 high-speed railway --- Beijing-Tianjin inter-city railway opens fortune Since battalion, high-speed railway is in China's Mainland fast development.According to national mid-long term railway network plan and railway Eleventh Five-Year Plan, " ten Two or five " plan, propulsion is accelerated with " four vertical four is horizontal " fast passenger transportation network comprehensively as the high speed railway construction of main framing.In January, 2004 Country's reply《Mid-long term railway network plan》, determining that the railway network will expand scale, perfect frame improves quality, rapid expansion fortune Movement Capabilities, improve rapidly equipment.It is determined that to the year two thousand twenty, china railway revenue kilometres reach 100,000 kilometers, main busy dry Line is realized separating lines for passenger and freight, and complex line rate and electrochemical rate reach 50%, and transport capacity meets national economy and social development needs, main Technical equipment is wanted to reach or approach advanced international standards.
Epoxy resin structural adhesive has good adhesive property, and heat endurance, good corrosion resistance, high mechanical strength are wide General to be applied in the structural bond of sheet metal, it is with spot welding etc., and technique is used in combination, and can greatly improve structural member fatigue strong Degree, rigidity and impact resistance.But general epoxy structural rubber solidfied material is more crisp, and shock resistance is relatively low.Simultaneously as high Iron operation environment be chronically at long-time high-intensity oscillation, expose to the weather, ambient temperature and humidity change greatly etc. harsh environment, it is right The performances such as toughness, shock resistance, the high-low temperature resistant being bonded in the metal structure of vehicle body propose new challenge.
In addition, be also found by long felt, structure glue is larger due to its viscosity, and thixotropy is stronger, viscous in high ferro vehicle body During the use for connecing, many structure glues occur that wetting effect is poor, the relatively low phenomenon of adhesive strength.This is the viscous of epoxy glue Degree and surface tension it is larger caused by.
In order to solve problem above, Chinese patent application 200910230720.6 proposes using acrylic rubber microballoon, receives Rice nitrile rubber particle and glass microballoon improve the toughness and impact resistance of structure glue, but due to particle diameter compared with Small, dispersion and emulsion technique is complex, and can be substantially increased using adhesive viscosity and thixotropy, and construction must use scoop people Work is well mixed, it is more difficult to carry out mixed glue using sebific duct, and easily appearance mixing is uneven causes quality problems;While its Tg point mistake Height, colloid is more crisp under causing low temperature, is unfavorable for that high ferro is run in the case where temperature is relatively low.
Chinese patent 201510963920.8 proposes to improve mechanical property using Organosiliconpolymermodified modified epoxy material.But It is that it uses the reaction of epoxide diluent and organic polymer and is modified, its viscosity is 500mPas, although significantly dropped Low glue initial viscosity, can meet instillation process, but also require colloidal thixotopic in high ferro body structure glue construction technology Property it is good, wall built-up thickness 1cm does not produce deformation, which has limited its application in high ferro industrial structure glue.
Under such technical background, the double groups of high-tenacity and shock-resistance of a high ferro body structure bonding and its similar requirement Part epoxy structural rubber is very important.
The content of the invention
The present invention provides a kind of two component epoxy structure glue, and it includes that weight compares 1:The component A and B component of 0.8-1.2:
The component A presses its own total restatement, including:Epoxy resin 10-40%, modifying epoxy resin by organosilicon 10- 40%, acrylonitrile butadiene rubber modified epoxy resin 10-30%, epoxide diluent 5-30%, reinforcer 30-70%, thixotropic agent 1- 10%, coupling agent 0.1-1%, defoamer 0.1-1%, and each material content percentage sum is 100%;
The B component presses its own total restatement, including:Polyether amine polyamine 20-60%, polyamide-based polyamine 10- 40%, reinforcer 30-70%, thixotropic agent 1-10%, and each material content percentage sum is 100%.
Double-component epoxy structural adhesive of the invention overcomes above-mentioned the deficiencies in the prior art, there is provided a kind of adhesive strength Height, good toughness, shock resistance, anti-vibration, the two component epoxy sqtructural adhesive of high-low temperature resistant impact, can be used for aluminum alloy bodywork Shape is bonded, and disclosure satisfy that the requirement of high ferro safe operation under various harsh environments.
Also therefore, the present invention also provides the use in structural bond of the two component epoxy structure glue between sheet metal On the way.More specifically, the present invention also provides purposes of the two component epoxy structure glue in the structural bond of high ferro car body.
Specific embodiment
Two component epoxy structure glue of the invention, including weight compares 1:The component A and B component of 0.8-1.2:
The component A presses its own total restatement, including:Epoxy resin 10-40%, modifying epoxy resin by organosilicon 10- 40%, acrylonitrile butadiene rubber modified epoxy resin 10-30%, epoxide diluent 5-30%, reinforcer 30-70%, thixotropic agent 1- 10%, coupling agent 0.1-1%, defoamer 0.1-1%, and each material content percentage sum is 100%;
The B component presses its own total restatement, including:Polyether amine polyamine 20-60%, polyamide-based polyamine 10- 40%, reinforcer 30-70%, thixotropic agent 1-10%, and each material content percentage sum is 100%.
In a preferred embodiment, the component A presses its own total restatement, is made up of following raw material:Asphalt mixtures modified by epoxy resin Fat 10-40%, modifying epoxy resin by organosilicon 10-40%, acrylonitrile butadiene rubber modified epoxy resin 10-30%, epoxide diluent 5- 30%, reinforcer 30-70%, thixotropic agent 1-10%, coupling agent 0.1-1%, defoamer 0.1-1%, and each material content hundred Fraction sum is 100%;
The B component presses its own total restatement, is made up of following raw material:Polyether amine polyamine 20-60%, it is polyamide-based Polyamine 10-40%, reinforcer 30-70%, thixotropic agent 1-10%, and each material content percentage sum is 100%.
Wherein, the epoxy resin refers to the organic compound containing two or more epoxide groups in molecule, removes In addition have no particular limits.Common epoxy resin has bisphenol A epoxide resin, double F types epoxy resin, phenolic epoxy tree Fat, bisphenol-A epoxy resin, A Hydrogenated Bisphenol A F types epoxy resin, cycloaliphatic epoxy resin, orthoresol type epoxy resin, sea Because of epoxy resin, bisphenol-s epoxy resin, bisphenol fluorene base epoxy etc..Above resin can individually can also two kinds or two Plant mixed above use.In preferred embodiments, described epoxy resin is bisphenol A type epoxy resin, and range of viscosities is 4,000-10,000mPas/25 DEG C, preferably 8,500mPas/25 DEG C.
The modifying epoxy resin by organosilicon is preferably epoxy resin blocking silicone.In a more preferred embodiment, The viscosity of the modifying epoxy resin by organosilicon is 8,000-16,000mPas/25 DEG C, preferably 14,000mPas/25 DEG C.
The acrylonitrile butadiene rubber modified epoxy resin is preferably epoxy resin end-blocking nbr carboxyl terminal.Preferred real In applying scheme, the viscosity of the acrylonitrile butadiene rubber modified epoxy resin is 50,000-100,000mPas/40 DEG C, preferably 80, 000mPa·s/40℃。
In a more preferred embodiment, in component A epoxy resin (a), modifying epoxy resin by organosilicon (b) and butyronitrile The percentage by weight (being based on total restatement of component A) of rubber modified epoxy resin (c) meets following relation:a/2≤b+c≤ 40%, and b:C=1:0.5-2.5.
In embodiment even more preferably, epoxy resin (a), modifying epoxy resin by organosilicon (b) in component A With the polyether amine in the percentage by weight of acrylonitrile butadiene rubber modified epoxy resin (c) (being based on total restatement of component A) and B component The percentage by weight (being based on total restatement of B component) of polyamine (x) and polyamide-based polyamine (y) meets following relation:1.5 ≤(a+b+c)(x+y)/xy≤8.0。
The epoxide diluent is those commonly used in the art, is had no particular limits.Common epoxide diluent such as ten Dialkyl group glycidol ether, ethylene glycol diglycidylether, benzyl glycidyl ether, phenyl glycidyl ether and polyhydroxy polycarboxylic Ether, can individually can also two or more be used in mixed way.In preferred embodiments, the epoxide diluent is viscous Spend is 10-200mPas/25 DEG C.
The reinforcer is preferably the mixing of the one or two kinds of in silicon powder and nano-calcium carbonate.Preferred In embodiment, the reinforcer be 1000-3000 mesh silicon powder and 3000-5000 mesh nano-calcium carbonates in one kind or Two kinds of mixing.
The thixotropic agent is preferably organobentonite and vapor phase method SiO2In one or two kinds of mixing, more preferably gas Phase method SiO2
The coupling agent is those commonly used in the art, is had no particular limits, such as:γ-glycidyl ether oxygen propyl three Methoxy silane, gamma-aminopropyl-triethoxy-silane, γ-(methacryloxypropyl) propyl trimethoxy silicane and N- (β-ammonia second Base)-γ-aminopropyltrimethoxysilane, can individually can also two or more be used in mixed way.
The defoamer is those commonly used in the art, is had no particular limits, such as:Dimethyl silicone polymer defoamer, Polyether Modified Polysiloxanes Defoaming Agent, can individually can also two kinds be used in mixed way.
The polyether amine polyamine is preferably two or three polyetheramines of degree of functionality, for example:(Hensel steps chemical industry to D-230 Trade (Shanghai) Co., Ltd.), T-403 (Hensel steps Chemical trade (Shanghai) Co., Ltd.).
The polyamide-based polyamine is preferably the polyamide of amine value 200-400, for example:502 (air chemical products (on Sea) Co., Ltd), 650 (Changzhou mountain peak Chemical Co., Ltd.s) etc..
Used in the structural bond that two component epoxy structure glue of the invention can be between sheet metal, particularly used In the structural bond of high ferro car body.
Shock resistance high tenacity epoxy structural rubber of the present invention compared with prior art, with following progress:
1) modifying epoxy resin by organosilicon contains that bond distance is more long, flexible preferable silicon oxygen bond, and it has excellent low temperature soft Property and weatherability, wherein silicon oxygen bond bond distance are about 1.5 times of carbon-carbon bond bond distance or so, and molecule easily rotates, silicone molecules Chain glass transition temperature is less than -100 DEG C, therefore it possesses excellent cryogenic property.
2) modifying epoxy resin by organosilicon is relatively low compared to the surface tension of epoxy resin, can be good at being sprawled on base material Wetting, can significantly improve the mechanical property after solidification.
3) acrylonitrile butadiene rubber modified epoxy resin is good with epoxy resin compatibility, is imitated with good toughness reinforcing and shock resistance Really.
4) mechanical strength of epoxy structural rubber is greatly improved, and such as shear strength can be by original 13KJ/m2Bring up to 25KJ/m2, elongation at break brings up to 10% by original 2%, vibrating fatigue can resist 10,000,000 oscillatory shear intensity without Substantially decay, cold cycling impacts -40 DEG C to 80 DEG C 100 circulation shear intensity without substantially decay.
In order to be better understood from and implement, with reference to embodiment, the present invention is further elaborated.Unless otherwise instructed, Then all operations are implemented under room temperature, condition of normal pressure;All numbers are parts by weight, and percentage is percetage by weight, ratio It is weight ratio.
Parameter of the present invention or the performance test results are measured as follows:
(1) shore hardness:Determined by standard GB/T 531
(2) body tensile strength:Determined by standard GB/T 2567
(3) elongation at break:Determined by standard GB/T 2567
(4) shear strength:Determined by standard GB/T 7124
(5) gel time:Determined by standard GB/T 7123
(6) vibrating fatigue:Determined by standard ISO 9664
(7) viscosity:Determined by standard GB/T 2794
(8) amine value:Determined by standard GB/T 2853
The raw material sources that the embodiment of the present invention is used are as follows:
Bisphenol A epoxide resin:HongChang Electronic Materials Co., Ltd
Modifying epoxy resin by organosilicon:National capital Chemical Co., Ltd. (14,000mPas/25 DEG C of viscosity)
Acrylonitrile butadiene rubber modified epoxy resin:The limited Co., Ltd of DOW Chemical (80,000mPas/40 DEG C of viscosity)
Lauryl diglycidyl ether:New far Chemical Industry Co., Ltd. of Anhui
Ethylene glycol diglycidylether:New far Chemical Industry Co., Ltd. of Anhui
Phenyl glycidyl ether:New far Chemical Industry Co., Ltd. of Anhui
Silicon powder:Guizhou millimicro powder industry Co., Ltd
Nano-calcium carbonate:Guizhou millimicro powder industry Co., Ltd
White carbon:Guizhou millimicro powder industry Co., Ltd
Dimethyl silicone polymer defoamer:Byk Chemie GmbH's (viscosity:5,000mPa·s/25℃)
γ-(methacryloxypropyl) propyl trimethoxy silicane coupling agent:Jingzhou Jianghan Fine Chemical Co., Ltd.
Polyetheramine:Hensel steps Chemical trade Co., Ltd, amine value 260mgKOH/g, 50mPas/25 DEG C of viscosity.
Polyamide:Air chemical products Co., Ltd, amine value 450mgKOH/g, 300Pas/25 DEG C of viscosity.
Embodiment 1
By 20 parts of epoxy resin, 128,15 parts of modifying epoxy resin by organosilicon, 20 parts of acrylonitrile butadiene rubber modified epoxy resins, 5 parts Ethylene glycol diglycidylether, 35 part of 2000 mesh SILICA FUME, 4 parts of white carbons, 0.5 part of γ-(methacryloxypropyl) propyl group front three TMOS coupling agent, 0.5 part of dimethyl silicone polymer defoamer stir, and prepare primary colors component A.By 25 parts of polyethers Amine, 25 parts of polyamide and 40 part of 3000 mesh silicon powder, 10 parts of white carbons stir and prepare primary colors component B.Will during with glue A, B component compare 1 according to weight:1 stirred by sebific duct after applying glue, the operating time is 60min, hardness Shao D85, body stretching Intensity 45MPa, elongation at break 10%, steel to steel shear strength 25MPa, vibration fatigue test 10,000,000 times and cold cycling (- 40 DEG C to 80 DEG C) impact 100 times after without substantially decay.
Embodiment 2
By 40 parts of epoxy resin, 128,10 parts of modifying epoxy resin by organosilicon, 10 parts of acrylonitrile butadiene rubber modified epoxy resins, 5 parts Lauryl diglycidyl ether, 30 part of 3000 mesh SILICA FUME, 4 parts of white carbons, 0.5 part of γ-(methacryloxypropyl) propyl group front three TMOS coupling agent, 0.5 part of dimethyl silicone polymer defoamer stir, and prepare primary colors component A.By 15 parts of polyethers Amine, 35 parts of polyamide and 40 part of 2000 mesh silicon powder, 10 parts of white carbons stir and prepare primary colors component B.Will during with glue A, B component compare 1 according to weight:1 stirred by sebific duct after applying glue, the operating time is 50min, hardness Shao D85, body stretching Intensity 40MPa, elongation at break 13%, steel to steel shear strength 26MPa, vibration fatigue test 10,000,000 times and cold cycling (- 40 DEG C to 80 DEG C) impact 100 times after without substantially decay.
Embodiment 3
By 10 parts of epoxy resin, 128,10 parts of modifying epoxy resin by organosilicon, 25 parts of acrylonitrile butadiene rubber modified epoxy resins, 10 Part phenyl glycidyl ether, 25 part of 2000 mesh SILICA FUME, 10 part of 3000 mesh nano-calcium carbonate, 9 parts of white carbons, 0.5 part of γ-(first Base acryloyl-oxy) propyl trimethoxy silicane coupling agent, 0.5 part of dimethyl silicone polymer defoamer stir, prepare Primary colors component A.25 parts of polyetheramines, 25 parts of polyamide and 40 parts of silicon powders, 10 parts of white carbons are stirred and prepare primary colors Component B.A, B component are compared 1 according to weight during with glue:1 stirred by sebific duct after applying glue, the operating time is 70min, hardness Shao D85, body tensile strength 39MPa, elongation at break 11%, steel to steel shear strength 29MPa, vibration fatigue test 10,000,000 Without substantially decay after the impact 100 times of (- 40 DEG C to 80 DEG C) of secondary and cold cycling.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Art technology Personnel in the case of the objective and scope for not departing from technical solution of the present invention, the modification that is carried out to technical scheme or Person's equivalent, all should cover in the middle of scope of the presently claimed invention.

Claims (10)

1. a kind of two component epoxy structure glue, including weight compares 1:The component A and B component of 0.8-1.2:
The component A presses its own total restatement, including:Epoxy resin 10-40%, modifying epoxy resin by organosilicon 10-40%, fourth Nitrile rubber modified epoxy 10-30%, epoxide diluent 5-30%, reinforcer 30-70%, thixotropic agent 1-10%, coupling Agent 0.1-1%, defoamer 0.1-1%, and each material content percentage sum is 100%;
The B component presses its own total restatement, including:Polyether amine polyamine 20-60%, polyamide-based polyamine 10-40%, Reinforcer 30-70%, thixotropic agent 1-10%, and each material content percentage sum is 100%.
2. two component epoxy structure glue according to claim 1, it is characterised in that the modifying epoxy resin by organosilicon is Epoxy resin blocking silicone.
3. two component epoxy structure glue according to claim 1, it is characterised in that the acrylonitrile butadiene rubber modified epoxy resin For epoxy resin blocks nbr carboxyl terminal.
4. the two component epoxy structure glue according to claim any one of 1-3, it is characterised in that the epoxide diluent is Lauryl diglycidyl ether, ethylene glycol diglycidylether, benzyl glycidyl ether, phenyl glycidyl ether and polyhydroxy polycarboxylic One or more in ether.
5. the two component epoxy structure glue according to claim any one of 1-3, it is characterised in that the reinforcer is silicon The mixing of the one or two kinds of in micro mist and nano-calcium carbonate.
6. the two component epoxy structure glue according to claim any one of 1-3, it is characterised in that the thixotropic agent is organic Bentonite and vapor phase method SiO2In one or two kinds of mixing, preferably vapor phase method SiO2
7. the two component epoxy structure glue according to claim any one of 1-3, it is characterised in that the polyether amine is polynary Amine is two or three polyetheramines of degree of functionality.
8. the two component epoxy structure glue according to claim any one of 1-3, it is characterised in that described polyamide-based polynary Amine is the polyamide of amine value 200-400.
9. the use in structural bond of the two component epoxy structure glue described in any one of claim 1-8 between sheet metal On the way.
10. purposes of the two component epoxy structure glue described in any one of claim 1-8 in the structural bond of high ferro car body.
CN201611205780.9A 2016-12-23 2016-12-23 Two-component epoxy structure adhesive and application thereof Pending CN106700996A (en)

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Application publication date: 20170524