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Room-temperature curing adhesive for insulator sleeve adhesion

A room temperature curing, adhesive technology, applied in the direction of adhesives, adhesive types, non-polymer adhesive additives, etc., can solve the problems of high curing temperature, strict requirements, low production efficiency, etc., to achieve excellent electrical performance, The effect of resistance to hydrofluoric acid corrosion

Active Publication Date: 2009-12-23
CHINA XD ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional adhesives have a high curing temperature (150-170°C), and heating equipment is required to cure the glue-coated porcelain sleeve as a whole or locally. The curing process is complicated and the requirements are strict; and the curing cycle (35h-40h) Longer, less productive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Firstly, self-made wollastonite powder, mixed silica powder and calcium carbonate powder in a molar ratio of 1:1, calcined at 1050°C for 110 minutes, and then ground. Then, weigh 1,000 grams of bisphenol A epoxy resin with an epoxy value of 0.52mol / 100g, 200 grams of triethylenetetramine, 200 grams of carboxyl-terminated liquid cyanide rubber, 2,4,6-tris(dimethyl 1.0 g of aminomethyl)phenol, 35 g of aminopropyltriethoxysilane (KH-550), 300 g of silica lime powder, 20 g of fumed silica with a particle size of 15-20 nm. Mix the above components at a room temperature of 35°C to obtain a room temperature curing adhesive for porcelain sleeve bonding. The adhesive is ready to use when it is prepared, and it is best to use it up in 30 to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0015] (2) Grind and level the joints of the upper and lower porcelain sleeves, clean the oil, dust and other impurities at the joints and heat and dry them. After cooli...

Embodiment 2

[0018] (1) Firstly, self-made wollastonite powder, mixed silica powder and calcium carbonate powder in a molar ratio of 1:1, calcined at 1070°C for 90 minutes, and then ground. Then, weigh 1,000 grams of bisphenol A epoxy resin with an epoxy value of 0.51mol / 100g, 250 grams of triethylenetetramine, 225 grams of carboxyl-terminated liquid cyanide rubber, 2,4,6-tris(dimethyl 1.2 grams of aminomethyl)phenol, 40 grams of aminopropyltriethoxysilane (KH-550), 400 grams of silica lime powder, 15 grams of fumed silica with a particle size of 15-20 nm. Mix the above components at a room temperature of 28°C to obtain a room temperature curing adhesive for porcelain sleeve bonding. The adhesive is ready to use when it is prepared, and it is best to use it up in 30 to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0019] (2) Grind and level the joints of the upper and lower porcelain sleeves, clean the oil, dust and other impurities at the joints and heat and dry th...

Embodiment 3

[0022] (1) First, self-made wollastonite powder, mixed silica powder and calcium carbonate powder in a molar ratio of 1:1, calcined at 1060°C for 100 minutes, and then grind. Then, weigh 1000 grams of bisphenol A epoxy resin with epoxy value of 0.52mol / 100g, 300 grams of triethylenetetramine, 250 grams of carboxyl-terminated liquid cyanide rubber, 2,4,6-tris(dimethyl 1.0 g of aminomethyl)phenol, 50 g of aminopropyltriethoxysilane (KH-550), 500 g of silica lime powder, 10 g of fumed silica with a particle size of 15-20 nm. Mix the above components at room temperature 15°C to obtain room temperature curing adhesive for porcelain sleeve bonding. The adhesive is ready to use when it is prepared, and it is best to use it up in 30 to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0023] (2) Grind and level the joints of the upper and lower porcelain sleeves, clean the oil, dust and other impurities at the joints and heat and dry them. After cooling, scrub the ...

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PUM

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Abstract

The invention relates to the field of adhesive research and discloses a room-temperature curing adhesive for insulator sleeve adhesion, which is used in the manufacture field of high-voltage insulators. The room-temperature curing adhesive comprises 100wt% of bisphenol-A epoxy resin, 20-30wt% of triethylene tetramine, 20-25wt% of carboxylated-terminated liquid acrylonitrile-polybutadiene rubber, 0.15-0.10wt% of 2,4,6-tris(dimethylaminomethyl)phenol, 3.5-5.0wt% of aminopropyltriethoxysilane, 30-50wt% of aedelforsite powder and 1.0-2.0wt% of gas-phase white carbon.

Description

Technical field [0001] The invention relates to the field of adhesive research, in particular to a room temperature curing adhesive for porcelain sleeve bonding used in the field of high-voltage electric porcelain manufacturing. Background technique [0002] In the production process of electrical porcelain products, high-voltage electrical porcelain sleeves are generally formed in sections, and then each section of the porcelain is bonded into a whole with organic adhesive. Therefore, the bonding of porcelain sleeves is an important part of the production of electric porcelain, and the formulation of adhesives is even more important. [0003] Traditional adhesives have high curing temperature (150~170℃). Heating equipment is required to heat the coated porcelain sleeve as a whole or locally for curing. The curing process is complicated and the requirements are strict; and the curing cycle (35h-40h) Longer, lower production efficiency. Summary of the invention [0004] The purpo...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J11/06C09J11/04
Inventor 焦芳王文平张巧利
Owner CHINA XD ELECTRIC CO LTD