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Two-component normal-temperature cured epoxy resin elastomer composition and preparation method thereof

An epoxy resin reactive diluent, epoxy resin technology, applied in the direction of epoxy resin glue, adhesive type, adhesive additive, etc., can solve the problem of high tensile strength, low elongation at break, and inability to achieve elastic bonding and other problems, to achieve the effect of good low temperature flexibility, high tensile elongation at break, which is conducive to application and promotion

Active Publication Date: 2021-02-09
南京阿斯孚特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent, CN 104119827 A, the adhesive is composed of epoxy resin, mercapto compound, toughening agent, acid anhydride and filler. It is completely cured at 25°C for 48 hours, with a shear strength of 25~36MPa and a tensile strength of 42~63MPa. low elongation at break
Other Chinese patents, CN 106281160 A, CN 106117513A, CN 110016321 A, CN 110373143 A, etc. all have high tensile strength, low elongation at break, and cannot achieve elastic bonding

Method used

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  • Two-component normal-temperature cured epoxy resin elastomer composition and preparation method thereof
  • Two-component normal-temperature cured epoxy resin elastomer composition and preparation method thereof
  • Two-component normal-temperature cured epoxy resin elastomer composition and preparation method thereof

Examples

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Embodiment 1

[0045] This embodiment provides a two-component room temperature curing epoxy resin elastomer composition and its preparation method, including the following raw materials in parts by weight:

[0046] 1) A component epoxy resin: epoxy resin (E-51, Baling Petrochemical) 100 parts, rubber modified epoxy resin (HyPox RA1340, CVC company) 11.8 parts, epoxy reactive diluent (1,4- butanediol diglycidyl ether) 14.2 parts;

[0047] 2) B-component epoxy curing agent: 100 parts of liquid monoamine curing agent (9-octadecylamine, Solvay Chemical Company), 41.5 parts of polyurethane prepolymer (HC-9975, Shanghai Crane City Polymer Company) Parts, adhesion promoter (according to mass ratio 593: cardanol: diphenolic propane = 0.53: 3.82: 1.29) 5.64 parts;

[0048] Wherein, the weight ratio of A component epoxy resin and B component epoxy curing agent is 1:1;

[0049] 3) A method for preparing a two-component room temperature curing epoxy resin elastomer composition, comprising the followi...

Embodiment 2

[0054] 1) A-component epoxy resin: epoxy resin (E-51, Taiwan Nanya) 100 parts, polyurethane modified epoxy resin (NPER-133L, Taiwan Nanya) 17.4 parts, epoxy resin reactive diluent (C12-14 6.6 parts of alkyl glycidyl ether, 4.4 parts of trimethylolpropane triglycidyl ether) 11 parts;

[0055] 2) B-component epoxy curing agent: 100 parts of liquid monoamine curing agent (JEFFAMINE®M-2005, XTJ-435, XTJ-436, mixed according to the molar mass ratio of 1:0.36:0.65), polyurethane prepolymer (H2128A , Zibo Huatian Chemical Co., Ltd.) 31.5 parts, adhesion promoter (according to the mass ratio of 593: cardanol: diphenolic propane = 0.25: 5.80: 1.56) 7.61 parts;

[0056] Wherein, the weight ratio of A component epoxy resin and B component epoxy curing agent is 1:0.86;

[0057] 3) The preparation method refers to Example 1, the difference is that in step 1, the temperature of the reaction kettle is 65° C., and the reaction time is 60 minutes; in step 2, the temperature is 75° C., and the...

Embodiment 3

[0059] 1) A component epoxy resin: epoxy resin (E-51, Baling Petrochemical) 100 parts, rubber modified epoxy resin (HyPox RF95, CVC company) 9.2 parts and polyurethane modified epoxy resin (NPER-133L , South Asia Resin Company) 6.5 parts, a total of 15.7 parts, epoxy resin reactive diluent (1,4-butanediol diglycidyl ether 6.3 parts, C12-14 alkyl glycidyl ether 7.4 parts, Junqiao New Materials (Shenzhen ) limited company) 13.7 copies;

[0060] 2) B-component epoxy curing agent: liquid monoamine curing agent (cyclohexylmethylamine, cyclopentylmethylamine, mixed according to the molar ratio of 1:0.78) 100 parts, polyurethane prepolymer (H1342, Zibo Huatian Chemical Co., Ltd. Company) 19.5 parts, adhesion promoter (according to mass ratio 593: cardanol: diphenolic propane = 0.29: 6.03: 2.15) 8.48 parts;

[0061] Wherein, the weight ratio of A component epoxy resin and B component epoxy curing agent is 1:1.13;

[0062] 3) The preparation method refers to Example 1, the difference...

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Abstract

The invention discloses a two-component normal-temperature cured epoxy resin elastomer composition and a preparation method. The composition comprises the following raw materials in parts by weight: component A epoxy resin: 100 parts of epoxy resin, 10-20 parts of rubber modified epoxy resin and / or polyurethane modified epoxy resin, and 8-15 parts of epoxy resin reactive diluent; and component B epoxy resin curing agent: 100 parts of liquid monoamine curing agent, 12.5-45 parts of polyurethane prepolymer and 4.5-11.5 parts of adhesion promoter. The weight ratio of the component A to the component B is 1:(0.80-1.20). The elastomer composition is high in normal-temperature curing speed, high in bonding strength, large in elongation at break, good in low-temperature flexibility, high in tearresistance and impact resistance, capable of achieving elastic bonding and wide in application prospect.

Description

technical field [0001] The invention relates to an epoxy resin adhesive, in particular to a two-component normal temperature curing epoxy resin elastomer adhesive composition, a preparation method and an application method. Background technique [0002] Since the middle of the twentieth century, with the successive proposals of various adhesive theories, the in-depth development of basic research work such as adhesive chemistry, adhesive rheology, and adhesive failure mechanism has led to rapid development of adhesive properties, varieties, and applications. . Due to its high bonding strength and strong versatility, epoxy adhesives were once known as "universal adhesives". Applications. [0003] Room temperature curing epoxy resin adhesives have received extensive attention due to their advantages of saving time, reducing workload, simple process, energy saving and environmental protection. Normal temperature curing epoxy resin adhesive, after cross-linking and curing, fo...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J163/00C09J11/06C08G59/40
CPCC09J163/00C09J11/06C08G59/4057C08L2205/025C08L2205/035C08K2201/014C08L63/00C08K5/1515C08K5/17C08K5/13
Inventor 亢阳周敦宏
Owner 南京阿斯孚特新材料科技有限公司
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