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High strength epoxy pouring sealant composition and application thereof

A potting, high-strength technology, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of complex curing process, unenvironmental protection, affecting the strength of the axe, etc., to achieve good leveling and reduce energy. consumption, high-intensity effect

Active Publication Date: 2013-12-18
SUZHOU JINQIANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the existing epoxy resin potting glue needs high temperature curing to affect the strength of the ax when potting, the curing process is complicated, and it is not environmentally friendly. The purpose of the present invention is to provide a high-strength epoxy potting glue composition and its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Embodiment 1 The preparation and application of the high-strength epoxy potting compound 1 of the present invention

[0026] The high-strength epoxy potting compound 1 was prepared according to the method of the present invention.

[0027] Preparation of polyurethane-modified epoxy adhesives:

[0028] 1) Add 300kg of dehydrated polyether 3010 into a reaction kettle equipped with 90kg of MDI, start stirring, raise the temperature to 90°C, react for 3 hours, cool and discharge to obtain polyurethane.

[0029] 2) Add 1200kg of bisphenol A epoxy resin E-54 to the reaction kettle, raise the temperature at 80°C, add 80kg of polyurethane obtained in step 1), start stirring, react for 4 hours, cool to 40°C, add 30kg of epoxy resin Oxygen diluent 630, stirred and mixed, cooled and discharged to obtain polyurethane-modified epoxy resin adhesive....

Embodiment 2

[0034] The ax produced by the above method has a measured breaking force of 6100kg. Example 2 Preparation and Application of High Strength Epoxy Potting Compound 2 of the Present Invention

[0035] The high-strength epoxy potting compound 2 was prepared according to the method of the present invention.

[0036] Preparation of polyurethane-modified epoxy adhesives:

[0037] 1) Add 400kg of dehydrated polyether 210 into a reaction kettle equipped with 80kg of TDI, start stirring, raise the temperature to 80°C, react for 3 hours, cool and discharge to obtain polyurethane.

[0038] 2) Add 1000kg of bisphenol A epoxy resin E-55 to the reaction kettle, heat up at 80°C, add 80kg of polyurethane obtained in step 1), start stirring, and react for 4 hours, cool to 40°C, add 10kg of epoxy resin Oxygen diluent 622, stirred and mixed, cooled and discharged to obtain polyurethane-modified epoxy resin adhesive.

[0039] Prepare epoxy curing agent:

[0040] Add 320kg of epoxy diluent 622 ...

Embodiment 3

[0043] The hammer produced by the above method has a measured breaking force of 6010kg. Example 3 Preparation and application of the high-strength epoxy potting compound 3 of the present invention

[0044] The high-strength epoxy potting compound 3 was prepared according to the method of the present invention.

[0045] Preparation of polyurethane-modified epoxy adhesives:

[0046] 1) Add 350kg of dehydrated polyether 3050 into a reaction kettle equipped with 90kg of MDI, start stirring, raise the temperature to 90°C, react for 3 hours, cool and discharge to obtain polyurethane.

[0047] 2) Add 1300kg of bisphenol A epoxy resin E-44 to the reaction kettle, raise the temperature at 80°C, add 100kg of polyurethane obtained in step 1), start stirring, react for 4 hours, cool to 40°C, and add 40kg Epoxy diluent 600, stirred and mixed, cooled and discharged to obtain polyurethane-modified epoxy resin adhesive.

[0048] Prepare epoxy curing agent:

[0049] Add 330kg of epoxy dilu...

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PUM

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Abstract

The invention provides a high strength epoxy pouring sealant composition which comprises, by weight, 2 to 2.5 parts of a polyurethane modified epoxy resin adhesive and 1 part of an epoxy hardener. The invention also discloses an application method of the high strength epoxy pouring sealant composition. The application method comprises the following steps: adding the epoxy hardener into the polyurethane modified epoxy resin adhesive in proportion; coating an obtained mixture on a bonding junction of objects; and carrying out curing at a temperature of 60 DEG C for 0.5 to 1 h. The high strength epoxy pouring sealant composition provided by the invention has the advantages of the simple application method, a low curing temperature and a tensile fracture strength 6 times higher than that of a common epoxy pouring sealant.

Description

technical field [0001] The invention relates to a tackifier, in particular to a high-strength epoxy potting adhesive composition and its application. Background technique [0002] Axes used for firefighting require high-strength, high-toughness potting glue to connect the ax head to the handle, and tools such as hammers also need high-strength, high-toughness potting glue. At present, the epoxy resin potting glue used for potting axes and hammers in China can be divided into one-component and two-component. [0003] One-component epoxy resin potting glue is rarely used due to its cumbersome process and short shelf life. [0004] The two-component epoxy resin potting adhesive is composed of epoxy resin adhesive and epoxy curing agent. It needs to be cured at a high temperature of 200°C for half an hour to one hour. Due to the large temperature difference, it is easy to Cracks occur, affecting its strength, and its breaking force is only 1000kg; and the process requirements ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/02C08G59/14C08G18/76C08G18/48
Inventor 曹建强
Owner SUZHOU JINQIANG NEW MATERIALS