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Thermoplastic elastomer toughened epoxy resin, its preparation and its application

A technology of thermoplastic elastomer and epoxy resin, applied in the direction of epoxy resin glue, epoxy resin coating, adhesive type, etc., can solve the problems of unfavorable engineering promotion, poor compatibility, fire hazard, etc. Achieve good process adjustability, increase low-temperature deformation ability, and improve safety

Active Publication Date: 2012-06-27
云南交投集团公路建设有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polarity of thermoplastic elastomer is weak, and its compatibility with epoxy resin with strong polarity is not good, so it has not been well applied in epoxy toughening
[0005] On the other hand, epoxy resin usually needs to be diluted with organic solvents during construction, which brings corresponding problems such as fire hazard, organic volatilization, toxicity, etc.
The use of low-volatility diluents or active diluents often increases the cost of epoxy resins, which is not conducive to engineering promotion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1——for resin concrete: The raw material mass ratio of toughened epoxy resin is E51 epoxy resin 100; T31 curing agent 25; coumarone (compatibilizer 1 liquid) 20; naphthenic oil (compatibilizer 2) 2; Compatibility agent 3) 5; SBS1301 (thermoplastic elastomer) 1.5; EBS (auxiliary) 0.5.

[0022] When preparing, first heat EBS, SBS and naphthenic oil to 150 ° C and keep stirring for 2 hours, then immediately add petroleum resin C9, 1 / 2 of coumarone resin and E51 epoxy resin and stir evenly, and naturally cool to room temperature to make a ring Oxygen component A; mix the remaining coumarone resin with T31 ​​curing agent, stir evenly at room temperature to make curing agent component B. Use dry C30 concrete aggregate aggregates to dry mix in a concrete mixer. The amount of aggregates is 7 times that of the liquid material. Then add component A with a temperature of 80°C to the mixer for wet mixing for 2 minutes, and then add component B to the mixer for wet mixing...

Embodiment 2

[0023] Embodiment 2——for resin mortar: The raw material mass ratio of toughened epoxy resin is E51 epoxy resin 100; T31 curing agent 25; coumarone (compatibilizer 1 liquid) 30; naphthenic oil (compatibilizer 2) 2; Compatibility agent 3) 10; SBS1301 (thermoplastic elastomer) 1.5; EBS (auxiliary) 0.5.

[0024] When preparing, first heat EBS, SBS, naphthenic oil, and petroleum resin C5 to 150°C and keep stirring for 2 hours, then immediately add 1 / 2 of coumarone resin and E51 epoxy resin, stir evenly, and then naturally cool to room temperature Prepare epoxy component A; mix the remaining coumarone resin with T31 ​​curing agent, stir evenly at room temperature to prepare curing agent component B. The sand and gravel materials are dry standard medium sand for cement mortar test. The ratio of sand to liquid material is 4:1. After mixing A and B materials evenly, add the mortar test mixing pot, and form the test piece according to the standard cement mortar test method. , cured a...

Embodiment 3

[0025] Embodiment 3——for adhesive: The mass ratio of raw materials is E51 epoxy resin 100; T31 curing agent 25; coumarone resin (compatibilizer 1 softening point 60°C) 20; naphthenic oil (compatibilizer 2) 10; SBS1301 (thermoplastic elastomer) 1.5 ; EBS (auxiliary) 0.5.

[0026] When preparing, first heat EBS, SBS and 3 / 5 naphthenic oil to 150°C for 2 hours, then immediately add 2 / 3 of the coumarone resin and stir evenly between 150°C and 130°C, then heat it at 130°C to 100°C Add E51 epoxy resin between ℃ and stir evenly, cool to room temperature to make epoxy component A; mix the remaining coumarone resin and naphthenic oil with T31 ​​curing agent, heat to 60°C and stir evenly, cool to room temperature to make curing Agent component B.

[0027] The physical performance test of thermoplastic elastomer toughened epoxy resin cured product is carried out according to GB / T7124-2008 "Determination of Tensile Shear Strength of Adhesives", the tensile shear strength can reach 5.6M...

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Abstract

The invention relates to a thermoplastic elastomer toughened epoxy resin, its preparation and its application, which belongs to the technical field of changing the physical index of epoxy resin. The raw materials possess the following weight proportion: 1) 100 parts of epoxy resin, 2) 15-40 parts of curing agent, 3) 2-20 parts of thermoplastic elastomer, 4) 5-100 parts of compatilizer and 0.5-5 parts of auxiliary agent; the compatilizer employs one or more selected from rosin and modified rosin, petroleum resin, coumarone indene resin, aromatic oil, naphthenic oil and solvent oil, the auxiliary agent employs one or more selected from calcium stearate, zine stearate and EBS. The method of the invention solves the compatibility of the thermoplastic elastomer and epoxy resin, and effectively improves the brittleness of epoxy resin, the property of a solidified substrate is capable of adjusting, and the manufacturability is capable of adjusting; the product of the invention has the advantages of environmental protection, good security and good economic applicability.

Description

technical field [0001] The invention relates to a thermoplastic elastomer toughened epoxy resin, its preparation and application, and belongs to the technical field of changing the physical index of epoxy resin. Background technique [0002] Due to its strong applicability, epoxy resin is widely used in various engineering fields such as civil engineering, construction, decoration, machinery, electronics, etc. Its application form is as an adhesive to bond similar or dissimilar materials; Cementing material bonds sand and gravel or powder filler into a whole to form resin concrete or mortar; third, it is used as a coating film on the surface of the structure or material, which plays an anti-alkali or protective role; fourth, it is used as a sealing material, such as electrical components or electronic components packaging etc. Its advantages lie in its strong bonding ability, high strength, small curing shrinkage, and room temperature curing. However, the cured epoxy resin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L53/02C09K3/10C09D163/00C09D153/02C09D5/08C09J163/00C09J153/02C04B26/14
Inventor 蒋鹤李国锋冯恩耀黄凌刘超严克波周超周建庭郑丹李青
Owner 云南交投集团公路建设有限公司
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