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Multi-component epoxy sealing silica gel and preparation method thereof

An epoxy sealing, multi-component technology, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of flammable foam, non-environmental protection, waste and other problems

Pending Publication Date: 2021-09-10
HUNAN KOSEN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many processing steps in this method, and a large number of small polyurethane foamed iron cans and redundant foam fragments are produced on the construction site, which is a lot of waste and is not environmentally friendly. Moreover, the foam is flammable and there is a risk of being embedded in the gap.
Moreover, the strength of water-based putty is low, and it is easy to absorb moisture after drying and cause secondary cracking

Method used

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  • Multi-component epoxy sealing silica gel and preparation method thereof
  • Multi-component epoxy sealing silica gel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0115] 1) Preparation of component A: first fully mix the epoxy resin and reactive diluent, then add inorganic fillers and continue mixing evenly to obtain component A.

[0116] 2) Preparation of component B: first knead vinyl silicone oil and white carbon black, then add platinum catalyst, tungsten nitride, antistatic agent and continue kneading evenly to obtain component B.

[0117] 3) Preparation of component C: Knead vinyl silicone oil, hydrogen-containing silicone oil and white carbon black first. Then add MQ resin and curing agent to continue kneading. Finally, add the inhibitor and knead evenly to obtain component C.

[0118] 4) Preparation of multi-component epoxy sealing silica gel: Mix components A, B and C in proportion to obtain epoxy sealing silica gel.

Embodiment 1

[0120] Stir and mix 72 parts of epoxy resin and 5 parts of reactive diluent at 70°C. After 25 minutes, turn on high-speed stirring and vacuumize to -0.03MPa. The high-speed stirring time is 35 minutes. Then add 23 parts of inorganic fillers and continue stirring for 25 minutes, cool down and stop stirring, stop stirring for 10 minutes and stop vacuuming to obtain component A.

[0121] Add 64 parts of terminal vinyl silicone oil and 8 parts of polyvinyl silicone oil into the kneader, then add 20 parts of hydrophobic fumed silica in 5 times, and continue kneading for 1 hour after the kneader finishes eating the powder. Finally, add 0.4 parts of platinum catalyst, 3.8 parts of tungsten nitride fiber and 3.8 parts of antistatic agent and continue kneading for 20 minutes to obtain component B.

[0122] Add 42.5 parts of terminal vinyl silicone oil, 5.5 parts of polyvinyl silicone oil and 9 parts of hydrogen-containing silicone oil into the kneader, then add 13 parts of hydrophobic ...

Embodiment 2

[0125] Stir and mix 72 parts of epoxy resin and 5 parts of reactive diluent at 70°C. After 25 minutes, turn on high-speed stirring and vacuumize to -0.03MPa. The high-speed stirring time is 35 minutes. Then add 23 parts of inorganic fillers and continue stirring for 25 minutes, cool down and stop stirring, stop stirring for 10 minutes and stop vacuuming to obtain component A.

[0126] Add 50 parts of terminal vinyl silicone oil and 24 parts of polyvinyl silicone oil into the kneader, then add 18 parts of hydrophobic fumed silica in 5 times, and continue kneading for 1 hour after the kneader finishes eating the powder. Finally, add 0.4 parts of platinum catalyst, 3.5 parts of tungsten nitride fiber and 4.1 parts of antistatic agent and continue kneading for 20 minutes to obtain component B.

[0127] Add 30 parts of terminal vinyl silicone oil, 18 parts of polyvinyl silicone oil and 8 parts of hydrogen-containing silicone oil into the kneader, then add 12 parts of hydrophobic fu...

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Abstract

The invention provides a multi-component epoxy sealing silica gel and a preparation method thereof. Compared with the existing sealant, the multi-component epoxy sealing silica gel has the advantages that the solvent corrosion resistance of the sealant is improved, the fatigue damage of the sealant is reduced, and the performances such as water resistance, wear resistance, aging resistance and stain resistance of the sealant are improved; the hardness and the service life of the sealant are improved, and thus the use cost is reduced. The method for preparing the multi-component epoxy sealing silica gel is simple and easy to operate, the adopted raw materials are simple and easy to obtain, the method is suitable for large-scale industrial application, and economic benefits can be greatly improved.

Description

technical field [0001] The invention relates to an epoxy sealant, in particular to a multi-component epoxy sealing silica gel and a preparation method thereof, and belongs to the technical field of epoxy sealant production and preparation. Background technique [0002] Prefabricated Concrete (PC structure for short) is a concrete structure made of prefabricated components as the main component, assembled, connected, and partially cast in place. Compared with the traditional process that is all completed on site, it has the advantages of high construction efficiency, less materials used on the construction site, low noise, saving templates, and saving water, electricity and energy consumption. [0003] Since the decorative components are assembled, connected, and partly cast-in-place to form the overall building, therefore, between decorative components, between decorative components and cast-in-place concrete, between decorative components and doors and windows, between door...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J183/07C09J183/05C09J183/04C09J11/04C09J11/08C08G59/50
CPCC09J163/00C09J183/04C09J11/04C09J11/08C08G59/504C08K2201/004C08K2201/006C08L2205/025C08L2205/035C08L83/04C08K7/04C08K7/26C08L63/00
Inventor 郑保昌欧阳光华刘立瑶刘格
Owner HUNAN KOSEN NEW MATERIAL
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