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Room-temperature curing adhesive for insulator sleeve adhesion

A room temperature curing, adhesive technology, used in adhesives, adhesive types, non-polymer adhesive additives, etc., can solve the problems of high curing temperature, long curing cycle, strict requirements, etc. Acid corrosion, excellent electrical properties

Active Publication Date: 2012-06-27
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) First, self-made wollastonite powder, silicon dioxide powder and calcium carbonate powder mixed according to the molar ratio of 1:1 were calcined at 1050°C for 110 minutes, and then ground. Then, respectively take by weighing 1000 grams of bisphenol A type epoxy resin with an epoxy value of 0.52mol / 100g, 200 grams of triethylenetetramine, 200 grams of carboxyl-terminated liquid nitrile rubber, 2,4,6-tri(dimethyl Aminomethyl) phenol 1.0g, aminopropyltriethoxysilane (KH-550) 35g, wollastonite powder 300g, particle diameter 20g of fumed white carbon black of 15-20nm. At a room temperature of 35°C, mix the above components to obtain a room temperature curing adhesive for bonding porcelain sleeves. The adhesive is prepared and used immediately, and it is best to use it up in 30 minutes to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0015] (2) Grind the joints of the upper and lower porcelain sleeves evenly, clean the oil, dust and other imp...

Embodiment 2

[0018] (1) First, self-made wollastonite powder, silicon dioxide powder and calcium carbonate powder mixed according to the molar ratio of 1:1 were calcined at 1070°C for 90 minutes, and then ground. Then, take respectively 1000 grams of bisphenol A type epoxy resins with an epoxy value of 0.51mol / 100g, 250 grams of triethylenetetramine, 225 grams of carboxyl-terminated liquid nitrile rubber, 2,4,6-tri(dimethyl 1.2 grams of aminomethyl) phenol, 40 grams of aminopropyltriethoxysilane (KH-550), 400 grams of silica lime powder, and 15 grams of fumed white carbon black with a particle size of 15-20 nm. At a room temperature of 28°C, mix the above-mentioned components to obtain a room-temperature-curing adhesive for porcelain sleeve bonding. The adhesive is prepared and used immediately, and it is best to use it up in 30 minutes to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0019] (2) Grind the joints of the upper and lower porcelain sleeves evenly, ...

Embodiment 3

[0022] (1) First, self-made wollastonite powder, silicon dioxide powder and calcium carbonate powder mixed according to the molar ratio of 1:1 were calcined at 1060°C for 100 minutes, and then ground. Then, take respectively 1000 grams of bisphenol A type epoxy resins with an epoxy value of 0.52mol / 100g, 300 grams of triethylenetetramine, 250 grams of carboxyl-terminated liquid nitrile rubber, 2,4,6-tri(dimethyl Aminomethyl) phenol 1.0g, aminopropyltriethoxysilane (KH-550) 50g, silica lime powder 500g, particle diameter 15-20nm fumed white carbon black 10g. At a room temperature of 15°C, mix the above-mentioned components to obtain a room-temperature-curing adhesive for porcelain sleeve bonding. The adhesive is prepared and used immediately, and it is best to use it up in 30 minutes to 45 minutes under natural conditions. If gelation occurs, stop using it.

[0023] (2) Grind the joints of the upper and lower porcelain sleeves evenly, clean the oil, dust and other impurities a...

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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 used in the field of high voltage electric porcelain manufacturing. Background technique [0002] In the production process of electric porcelain products, high-voltage electric porcelain bushings are generally formed in sections, and then each section of porcelain is bonded with an organic adhesive to form a whole. Therefore, the bonding of porcelain sleeves is an important link in the production of electric porcelain, and the formulation of adhesives is even more crucial. [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, lower production efficiency. Contents of the invention [0004] The object of the present inven...

Claims

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Application Information

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