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Voltage stabilizer for direct-current/alternating-current high-voltage cable insulation material and preparation method and application thereof

A high-voltage cable and voltage stabilization technology, which is applied in the direction of carboxylate preparation, cyanide reaction preparation, chemical instruments and methods, etc., can solve the problems of poor compatibility and easy migration of polyethylene, and achieve high cross-linking degree and high Buffering and trapping effects, effects of increasing the degree of cross-linking

Pending Publication Date: 2021-10-22
WANHUA CHEMICAL (NINGBO) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a voltage stabilizer for DC / AC high-voltage cable insulating material. The high-voltage cable insulating material introduced with this type of voltage stabilizer not only has excellent thermal and mechanical properties, but also It can also significantly improve the electrical performance, and the addition of the voltage stabilizer of the present invention can significantly improve the crosslinking degree of the cable insulation material, effectively solving the problem of poor compatibility with the matrix material polyethylene and easy migration, which is A general-purpose voltage stabilizer that facilitates cross-linking

Method used

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  • Voltage stabilizer for direct-current/alternating-current high-voltage cable insulation material and preparation method and application thereof
  • Voltage stabilizer for direct-current/alternating-current high-voltage cable insulation material and preparation method and application thereof
  • Voltage stabilizer for direct-current/alternating-current high-voltage cable insulation material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Preparation of direct / AC high-voltage cable insulating material voltage stabilizer (3-octenyl-4-octenylaminobenzoic acid octenyl ester):

[0091] 1) Add 1.50g (0.011mol) 4-aminobenzoic acid and 4.82g (0.033mol) 8-chloro-1-octene into a round bottom flask, then add 0.48g (0.012mol) sodium hydroxide, 36.4g (50ml) triethylamine, reflux reaction at 110 DEG C for 4h, cooled and precipitated product, filtered and washed with water, washed off surface impurities, then dried in a vacuum oven at 60 DEG C for 12h to obtain 3.73g of intermediate, with a yield of 95%. Its structure is as follows:

[0092]

[0093] NMR [H, CDCl 3 ]: 1.29(m, 10H), 1.43(m, 2H), 1.63(m, 2H), 1.80(m, 2H), 2.18(m, 6H), 3.35(t, 2H), 4.30(t, 2H) ,5.02(m,2H),5.07(m,2H),5.82(m,2H),6.71(d,2H),7.68(d,2H)

[0094] 2) Mix 3.73g (0.010mol) intermediate with 1.61g (0.011mol) 8-chloro-1-octene, add 1.60g (0.012mol) AlCl 3 As a catalyst, in 66.25g (50ml) of dichloromethane 85 ℃ reflux reaction for 4h. After ...

Embodiment 2

[0098] Preparation of direct / AC high-voltage cable insulating material voltage stabilizer (octenyl 3-octenyl-4-octenyloxybenzoate):

[0099] 1) Add 1.50g (0.011mol) 4-hydroxybenzoic acid and 2.41g (0.016mol) 8-bromo-1-octene into a round bottom flask, then add 0.88g (0.022mol) sodium hydroxide, 56.0g (50ml) triethanolamine, reflux reaction at 140 DEG C for 2 hours, cooled and precipitated product, filtered and washed with water, washed away surface impurities, then dried in a vacuum oven at 60 DEG C for 12 hours to obtain 3.74 g of intermediates with a yield of 95%, which The structure is as follows:

[0100]

[0101] NMR [H, CDCl 3 ]: 1.29(m, 8H), 1.43(m, 4H), 1.76(m, 2H), 1.80(m, 2H), 2.18(m, 4H), 2.62(t, 2H), 4.06(t, 2H) ,4.30(t,2H),5.02(m,2H),5.07(m,2H),5.82(m,2H),6.80(d,2H),7.10(d,2H)

[0102] 2) Mix 3.74g (0.010mol) of the intermediate with 2.93g (0.020mol) of 8-chloro-1-octene, add 2.67g (0.020mol) of AlCl 3 As a catalyst, in 45.28g (60ml) of dichloromethane refl...

Embodiment 3

[0106] Preparation of direct / AC high-voltage cable insulating material voltage stabilizer (3-octenyl-4-octenyloxyoctene aniline, 2-octenyl-4-octenyloxyoctene aniline):

[0107] 1) Add 1.50g (0.014mol) of 4-aminophenol and 4.11g of 8-chloro-1-octene (0.028mol) into a round bottom flask, then add 2.44g (0.023mol) of sodium carbonate, 60g (66.7 ml) Ethylenediamine, reflux at 100°C for 10h, cool and precipitate the product, filter and wash with water to remove surface impurities, and then dry in a vacuum oven at 60°C for 12h to obtain 4.25g of the intermediate with a yield of 96%. The structure is as follows:

[0108]

[0109] NMR [H, CDCl 3 ]: 1.29(m, 10H), 1.43(m, 2H), 1.63(m, 2H), 1.76(m, 2H), 2.18(m, 4H), 2.62(t, 2H), 3.35(t, 2H) ,4.06(t,2H),5.02(m,2H),5.07(m,2H),5.82(m,2H),6.77(s,4H)

[0110] 2) Mix 4.25g (0.013mol) intermediate with 3.52g (0.024mol) 8-chloro-1-octene, add 3.12g (0.023mol) AlCl 3 As a catalyst, reflux reaction in 53.0g (40ml) of dichloromethane at 100°...

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Abstract

The invention provides a voltage stabilizer for a direct-current / alternating-current high-voltage cable insulation material and a preparation method and application thereof. The voltage stabilizer has a structure as shown in a formula 1, the high-voltage cable insulation material with the voltage stabilizer introduced not only has excellent thermal performance and mechanical performance, but also can remarkably improve the electrical performance, and the crosslinking degree of the cable insulation material can be remarkably improved by adding the voltage stabilizer, the problems of poor compatibility with a base material polyethylene and easy migration can be effectively solved, and the voltage stabilizer is a universal voltage stabilizer with a cross-linking effect.

Description

technical field [0001] The invention relates to the field of high-voltage insulating materials, in particular to a general-purpose voltage stabilizer for DC / AC high-voltage cable insulation materials that can facilitate crosslinking, a preparation method, and an application of the voltage stabilizer in low-density polyethylene. Background technique [0002] At present, with the vigorous construction and development of infrastructure, the power network is also in a stage of rapid development. There are more and more applications of renewable energy such as wind energy, solar energy, and tidal energy. Therefore, higher long-distance large-capacity power transmission technology is required. . Cross-linked polyethylene is the current mainstream polymer insulation material. It has excellent electrical properties such as high breakdown strength and low dielectric loss, and also has excellent thermal and mechanical properties. It has gradually replaced traditional impregnated paper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/60C07C69/92C07C217/84C07C227/16C07C67/343C07C213/08C08F255/02C08F226/02C08F218/12
CPCC07C229/60C07C69/92C07C217/84C08F255/02C08F226/02C08F218/12
Inventor 刘海燕李保印祁先勇陈连清张红石耀东
Owner WANHUA CHEMICAL (NINGBO) CO LTD
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