Sealant

A technology of sealant and curing agent, applied in the field of sealant, can solve the problems of low storage stability, complicated preparation process and high production cost, and achieve the effects of simple process, easy storage and low processing cost

Inactive Publication Date: 2014-07-23
上海禧合应用材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented inventor describes how different types of materials have their own benefits when combined together for better bond between them without requiring complicated steps like mixing each material separately. These compositions also provide good quality glue products due to excellent thermal insulation, moisture protection, shock resistances, flexibleness, durability, and ease of manufacturing processes. They achieve this through modifying both components simultaneously while maintaining strong bonds even after being mixed up. Overall these technical improvements make the seals stronger than previously possible but easier to store and transport.

Problems solved by technology

Technological Problem: Current Liquid Crystals Display LC Displays require long distance transportations or specialized equipment during installation. These limitations can lead to leaks caused by foreign substances like dirt particles and moisture penetrating through cracks on the edges of these panels. To address this problem, there was developed an improved type called Self-Made Modified Epoxide Resin Binder(SEMB). SEMB had better thermal insulation properties compared to other types but also showed more flexible and durable characteristics than regular epoxy based glue. Additionally, it could store well without losing any part when needed because they were easier to mix together at room temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Sealant, its each component and corresponding weight percent are as shown in Table 1:

[0041] Table I

[0042]

[0043] The preparation method of sealant, concrete steps are as follows:

[0044] a. Add epoxy resin and toughening agent into the double planetary dynamic mixer according to the weight percentage stated in Table 1, control the temperature of the material in the mixer within the range of 80 ° C, stir at high speed for 80 minutes, and make the epoxy resin and toughening agent The toughening agent reacts, and the epoxy resin is modified into a toughened epoxy resin.

[0045] b. After the above reaction is sufficient, reduce the temperature of the reaction product in the double planetary mixer to 20°C, and add the curing agent according to the weight percentage in Table 1, and continue to stir for 45 minutes to make the curing agent and the reaction product uniform mix.

[0046] c. Take the above mixture out of the double planetary power mixer, and grind ...

Embodiment 2

[0049] Sealant, its each component and corresponding weight percent are as shown in table two:

[0050] Table II

[0051]

[0052] The preparation method of sealant, concrete steps are as follows:

[0053] a. Add epoxy resin and toughening agent into the double planetary dynamic mixer according to the weight percentage stated in Table 2, control the temperature of the material in the mixer within the range of 100°C, and stir at high speed for 50 minutes to make the epoxy resin and toughening agent The toughening agent reacts, and the epoxy resin is modified into a toughened epoxy resin.

[0054] b. After the above reaction is sufficient, lower the temperature of the reaction product in the double planetary mixer to 30°C, and add the curing agent and the accelerator according to the weight percentage in Table 2, and continue to stir for 20 minutes to be uniform with the reaction product. mix.

[0055] c. Take the above mixture out of the double planetary power mixer, and ...

Embodiment 3

[0058] Sealant, its each component and corresponding weight percent are as shown in table three:

[0059] Table three

[0060]

[0061] The preparation method of sealant, concrete steps are as follows:

[0062] a. Add epoxy resin, toughening agent and filler into the double planetary dynamic mixer according to the weight percentage stated in Table 3, control the temperature of the material in the mixer within the range of 90°C, and stir at high speed for 60 minutes to make the epoxy The resin reacts with the toughening agent, and the epoxy resin is modified into a toughened epoxy resin, which is thoroughly mixed with the filler. During the stirring process, the viscosity of the mixture is adjusted by adding a diluent so that the viscosity of the mixture is not greater than 50,000 centipoise.

[0063] b. After the above reaction is sufficient, reduce the temperature of the reaction product in the double planetary dynamic mixer to 40°C, and add the curing agent and accelera...

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Abstract

The invention discloses a sealant. The sealant comprises, by weight, 5 to 70% of epoxy resin, 0.5 to 45% of a curing agent, and 1 to 50% of a flexibilizer. The sealant is capable of avoiding a mixing process before application of bi-component sealants, can be used directly, is capable of realizing high-quality gluing and sealing effects, is convenient for using and storing, and is capable of avoiding disadvantages of existing signal-component sealants that heat resistance, flexibility, and storage stability are poor, water absorption rate is high, mechanical strength is low, and preparation technology is complex. The sealant is especially suitable to be used as a liquid crystal display box edge sealing adhesive.

Description

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Claims

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Application Information

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Owner 上海禧合应用材料有限公司
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