CN101864171A - Preparation method of anti-bird silicone rubber composite insulator - Google Patents

Abstract

The invention relates to a preparation method of an anti-bird silicone rubber composite insulator. The anti-bird silicone rubber composite insulator is prepared from the following components in parts by weight: 100 parts of silicone rubber, 50-60 parts of white carbon black, 8-10 parts of dimethicone, 5-6 parts of hydroxyl silicone oil, 2-2.5 parts of diisopropyl benzene peroxide and 1-1.5 parts of methyl anthranilate. The insulator of the invention has the odor distribution period of 3 years basically identical to the replacement period of a common insulator, can effectively decrease the accident outage rate by 50 percent, and improves the operation reliability of a power network.

Description

The preparation method of anti-bird silicone rubber composite insulator

Technical field the present invention relates to a kind of preparation method of silicon rubber insulator, specifically a kind of preparation method of anti-bird silicone rubber composite insulator.

The insulator that generally uses in background technology China electric transmission and distribution circuit mainly contains porcelain insulator, glass insulator and composite insulator.Composite insulator is because of it has good hydrophobic nature, resistance to deterioration, proof tracking and electrical erosion resistance, has very high tensile strength and bending strength and used more and more widely.

Transmitting line is of long duration by the accident that birds cause.Comprise that the unfirmly closing composite insulator causes the damage of insulator; The movement of birds is fallen on the full skirt limit of insulator, and easily short circuit umbrella spacing is gone into discharge channel, causes the organic composite insulator flashover, and especially at the weather that rains and flash, insulator is very easily punctured by lightning, causes the circuit breaking; And birds on the cross-arm or the bow wire jumper above nest, the straw of nesting or other fiber lamp foreign material are blown to four winds and waft down, can cause electrical distance less than two flashovers discharge ground connection to the insulator short circuit, make line tripping.

The preparation technology of existing composite insulator generally reaches by the change to insulator shape or structure and prevents that the birds movement is dropped in purpose on the insulator full skirt, but owing to can not fundamentally stop birds, thereby the problem that still can not effectively avoid birds droppings, Bird's Nest flashover and unfirmly closing etc. to cause near insulator.

Summary of the invention technical problem to be solved by this invention provides a kind of preparation method of anti-bird silicone rubber composite insulator, the product that makes reaches the effect of driving bird by giving out irritating smell, can effectively prevent birds near insulator, insulator be caused peck the flashover that damage or birds droppings, Bird's Nest cause.

In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme.

A kind of preparation method of anti-bird silicone rubber composite insulator is characterized in that: composition of raw materials is as follows:

100 parts in silicon rubber, 50～60 parts of white carbon blacks, 8～10 parts of dimethyl silicone oils, 5～6 parts of hydroxy silicon oils, 2～2.5 parts of peroxide diisopropylbenzene(DIPB)s, 1～1.5 part of amido methyl benzoate; Described part all refers to weight part.

Preparation process is as follows:

1), proportionally gets silicon rubber, white carbon black, dimethyl silicone oil and hydroxy silicon oil, will make rubber unvulcanizate in 2.5～3 hours mixed the forging of 150～170 ℃ of following high temperature in their adding Banbury mixeies;

2), with the 1st) gained rubber unvulcanizate cooling poured in the mill to room temperature in 24 hours, proportionally added peroxide diisopropylbenzene(DIPB) and amido methyl benzoate in mill, extruding and shearing 20～30 minutes in mill obtains modified silicon rubber behind the compressing tablet;

3), with the 2nd) in products therefrom and plug putting into the vulcanizer mould at 170～180 ℃, pressure is that high-temperature molding obtained the insulator work in-process in 18～25 minutes under the 15MPa;

4), with the 3rd) step insulator work in-process inner end smear one the circle seal gum, then insulator work in-process inner end is inserted in the inner body of metal gold utensil, at last metal gold utensil and the half-finished junction of insulator are applied certain pressure they are crimped on together.

White carbon black is the general name of white powder X-ray amorphous silicic acid and silicate product, mainly is meant precipitated silica, aerosil, superfine silicon dioxide gel and aerogel, also comprises Powdered synthetic aluminium silicate and Calucium Silicate powder etc.White carbon black is a porous material, and it is formed available SiO2nH2O and represents, wherein nH2O is that form with surface hydroxyl exists.

Positively effect of the present invention is:

In rubber unvulcanizate, add strong oxide compound dicumyl peroxide of polymer and amido methyl benzoate, siloxane bond in dicumyl peroxide and the silicon rubber reacts, thereby produce a kind of dicumyl peroxide derivative, this derivative has the smell of bird aversion, this smell discharges by the slow volatilization of derivative, thereby avoid the close of birds, the amido methyl benzoate that chemical reaction does not take place of Tian Jiaing also has and drives the bird effect preferably simultaneously, both actings in conjunction, fundamentally solve the insulator arc-over accident that existing lining is caused by the birds invasion and attack, and the cycle of distributing of smell reaches 3 years, basically identical with the replacement cycle of common insulator, can effectively reduce by 50% forced outage rate, improve the reliability of operation of power networks.Drive bird by smell; made full use of the unmatched effect of Biological Principles; both protected electric power facility to avoid the destruction and the interference of flying bird biology; again streamside district many kinds birds biology has been played good driveing and provide protection; smell need not be done safeguard procedures also to the person poultry harmless, and environment is not had destruction; simultaneously, the tension coefficient of the insulator of preparation and insulating coefficient all reach relevant national standard.

The invention will be further described below in conjunction with embodiment for embodiment.

Embodiment one:

Composition of raw materials is as follows:

100 parts in silicon rubber, 50 parts of white carbon blacks, 8 parts of dimethyl silicone oils, 5 parts of hydroxy silicon oils, 2 parts of peroxide diisopropylbenzene(DIPB)s, 1 part of amido methyl benzoate; Described part all refers to weight part, down together.

Preparation process is as follows:

1), proportionally gets silicon rubber, white carbon black, dimethyl silicone oil and hydroxy silicon oil, will make rubber unvulcanizate in 2.5～3 hours mixed the forging of 150 ℃ of following high temperature in their adding Banbury mixeies;

2), with the 1st) gained rubber unvulcanizate cooling poured in the mill to room temperature in 24 hours, added peroxide diisopropylbenzene(DIPB) and amido methyl benzoate according to aforementioned proportion in mill, pushed in mill and sheared 20 minutes, obtained modified silicon rubber behind the compressing tablet;

3), with the 2nd) in products therefrom and plug putting into the vulcanizer mould at 170 ℃, pressure is that high-temperature molding obtained the insulator work in-process in 18 minutes under the 15MPa;

4), with the 3rd) step insulator work in-process inner end smear one the circle seal gum, then described insulator work in-process inner end is inserted in the inner body of metal gold utensil, at last metal gold utensil and the half-finished junction of insulator are applied certain pressure and they are crimped on make finished product together.

Embodiment two:

Composition of raw materials is as follows:

100 parts in silicon rubber, 60 parts of white carbon blacks, 10 parts of dimethyl silicone oils, 6 parts of hydroxy silicon oils, 2.5 parts of peroxide diisopropylbenzene(DIPB)s, 1.5 parts of amido methyl benzoate;

Preparation process is as follows:

1), proportionally gets silicon rubber, white carbon black, dimethyl silicone oil and hydroxy silicon oil, will make rubber unvulcanizate in 3 hours mixed the forging of 170 ℃ of following high temperature in their adding Banbury mixeies;

2), with the 1st) gained rubber unvulcanizate cooling poured in the mill to room temperature in 24 hours, added peroxide diisopropylbenzene(DIPB) and amido methyl benzoate according to aforementioned proportion in mill, pushed in mill and sheared 30 minutes, obtained modified silicon rubber behind the compressing tablet;

3), with the 2nd) in products therefrom and plug putting into the vulcanizer mould at 180 ℃, pressure is that high-temperature molding obtained the insulator work in-process in 25 minutes under the 15MPa;

4), with the 3rd) step insulator work in-process inner end smear one the circle seal gum, then described insulator work in-process inner end is inserted in the inner body of metal gold utensil, at last metal gold utensil and the half-finished junction of insulator are applied certain pressure they are crimped on together.

Embodiment three:

Composition of raw materials is as follows:

100 parts in silicon rubber, 55 parts of white carbon blacks, 9 parts of dimethyl silicone oils, 5.5 parts of hydroxy silicon oils, 2.25 parts of peroxide diisopropylbenzene(DIPB)s, 1.25 parts of amido methyl benzoate;

Preparation process is as follows:

1), proportionally gets silicon rubber, white carbon black, dimethyl silicone oil and hydroxy silicon oil, will make rubber unvulcanizate in 2.8 hours mixed the forging of 160 ℃ of following high temperature in their adding Banbury mixeies;

2), with the 1st) gained rubber unvulcanizate cooling poured in the mill to room temperature in 24 hours, added peroxide diisopropylbenzene(DIPB) and amido methyl benzoate according to aforementioned proportion in mill, pushed in mill and sheared 25 minutes, obtained modified silicon rubber behind the compressing tablet;

3), with the 2nd) in products therefrom and plug putting into the vulcanizer mould at 175 ℃, pressure is that high-temperature molding obtained the insulator work in-process in 22 minutes under the 15MPa;

4), with the 3rd) step insulator work in-process inner end smear one the circle seal gum, then described insulator work in-process inner end is inserted in the inner body of metal gold utensil, at last metal gold utensil and the half-finished junction of insulator are applied certain pressure they are crimped on together.

The electromechanical properties of the anti-bird silicone rubber composite insulator of preparation see Table one.

Table one

Sequence number	Voltage rating (KV)	Specified mechanical stretching load (KV)	The linkage flag structure	Structure height (mm)	Minimum arcing distance (mm)	Minimum nominal creepage distance (mm)	Thunderbolt Whole wave impact withstand voltage (peak value) is not less than (KV)	Power frequency 1min wet withstand voltage (virtual value) is not less than (KV)	Piezometer ring (individual)
										Embodiment one	??35	??100	??16	680±15	??490	1510	?230	??95	No N/A
Embodiment two	??110	??100	??16	1240	??1000	3150	?550	??230
										Embodiment three	??220	??100	??16	2240	??1900	5040	?1000	??395

The anti-bird test of the anti-bird silicone rubber composite insulator of preparation:

At the beginning of 2008 4 months with product in the new electric company in Kenli, Shandong Province linked network (35KV insulator), running status is good, has played the effect of driving bird protection safe operation of electric network, the statistics effect sees Table two.

Table two 2008---used anti-bird silicone rubber composite insulator front and back bird pest data to contrast in 2009:

Title	Line length	Electric pole quantity	The insulator total quantity	The anti-bird silicone rubber composite insulator proportion	Frequency of power cut before using in 08 year	Used the back frequency of power cut in 08 year
							110KV sea wall line	??2.3km	??46	??153	??90％	??17	??5
35KV industry park line	??1.9km	??38	??120	??100％	??5	??0
							10KV aircraft field wire	??1.6km	??32	??108	??100％	??6	??0

From the statistic data of table two as can be seen, after using this product, the line outage number of times obviously reduces, and the application of anti-bird silicone rubber composite insulator has greatly improved electric power netting safe running level and power supply reliability, has advantageously ensured local industrial and agricultural production.

Claims (1)

1. the preparation method of an anti-bird silicone rubber composite insulator is characterized in that:

Composition of raw materials is as follows:

100 parts in silicon rubber, 50～60 parts of white carbon blacks, 8～10 parts of dimethyl silicone oils, 5～6 parts of hydroxy silicon oils, 2～2.5 parts of peroxide diisopropylbenzene(DIPB)s, 1～1.5 part of amido methyl benzoate; Described part all refers to weight part.

Preparation process is as follows:

1), proportionally gets silicon rubber, white carbon black, dimethyl silicone oil and hydroxy silicon oil, will make rubber unvulcanizate in 2.5～3 hours mixed the forging of 150～170 ℃ of following high temperature in their adding Banbury mixeies;

2), with the 1st) gained rubber unvulcanizate cooling poured in the mill to room temperature in 24 hours, proportionally added peroxide diisopropylbenzene(DIPB) and amido methyl benzoate in mill, extruding and shearing 20～30 minutes in mill obtains modified silicon rubber behind the compressing tablet;

3), with the 2nd) in products therefrom and plug putting into the vulcanizer mould at 170～180 ℃, pressure is that high-temperature molding obtained the insulator work in-process in 18～25 minutes under the 15MPa;

4), with the 3rd) step insulator work in-process inner end smear one the circle seal gum, then insulator work in-process inner end is inserted in the inner body of metal gold utensil, at last metal gold utensil and the half-finished junction of insulator are applied certain pressure they are crimped on together.