CN105176087A - Anti-bacterial anti-corrosion rubber material for cable accessory cooling tube and preparation method thereof - Google Patents

Abstract

The invention discloses an anti-bacterial anti-corrosion rubber material for a cable accessory cooling tube. The anti-bacterial anti-corrosion rubber material for the cable accessory cooling tube is prepared from, by weight, 3-4 parts of 8-hydroxyquinoline, 2-3 parts of sodium diacetate, 10-13 parts of perluorooctyl acrylate, 380-400 parts of silicone rubber, 50-60 parts of carbon nanotubes, 80-90 parts of acrylic acid, 80-100 parts of N,N'-dicyclohexylcarbodiimide, 7-10 parts of 4-dimethylaminopyridine, 300-460 parts of tetrahydrofuran, 1.3-2 parts of silane coupling agents KH550, 120-150 parts of 65-68wt% sulfuric acid, 100-130 parts of 95-98wt% nitric acid, 30-40 parts of ethyl orthosilicate, 2-3 parts of ammonium hydroxide, 4-5 parts of 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane, 0.6-1 part of ascorbic acid, 3-4 parts of dimethyl fumarate and 4-6 parts of antioxidants CMA. According to the anti-bacterial anti-corrosion rubber material for the cable accessory cooling tube, the added 8-hydroxyquinoline, sodium diacetate, dimethyl fumarate and the like have the good anti-bacterial and anti-corrosion properties, therefore, the anti-aging property of the rubber material can be improved, and the service life of the rubber material can be prolonged.

Description

Cold effective rubber mass of a kind of Antimicrobial preservative cable accessory and preparation method thereof

Technical field

The present invention relates to field of cable technology, particularly relate to cold effective rubber mass of a kind of Antimicrobial preservative cable accessory and preparation method thereof.

Background technology

Because carbon nanotube can improve the mechanical property of matrix material, electrical property and other performances, so carbon nanotube/rubber composite causes increasing concern.In order to realize the object strengthened, two problems is had to need to solve: one is the scattering problem of carbon nanotube, another is that the interface problem of carbon nanotube and matrix compares inertia due to carbon nano tube surface, and specific surface area compares great Yi and causes reunion, so the effect of carbon nanotubes reinforced polymer is not clearly " based on this reason, a lot of people starts to carry out physical or chemical treatment to carbon nanotube, in the middle of these methods, the method that acid treatment produces oxy radical is that one is conventional and efficient, because it can provide effectively/reflecting point, thus realize chemical bond with matrix resin and be connected " but, in most cases, the group that this method produces is often little, enough connections and matrix bonding can not be provided " so, in order to increasing of realization response point, just need to introduce more functional group, come and matrix resin effect.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides cold effective rubber mass of a kind of Antimicrobial preservative cable accessory and preparation method thereof.

The present invention is achieved by the following technical solutions:

The cold effective rubber mass of a kind of Antimicrobial preservative cable accessory, it is made up of the raw material of following weight parts:

Oxine 3-4, sodium Diacetate 2-3, vinylformic acid ten trifluoro monooctyl ester 10-13, silicon rubber 380-400, carbon nanotube 50-60, vinylformic acid 80-90, N, nitric acid 100-130, the tetraethoxy 30-40 of sulfuric acid 120-150,95-98wt% of N'-Dicyclohexylcarbodiimide 80-100, DMAP 7-10, tetrahydrofuran (THF) 300-460, Silane coupling agent KH550 1.3-2,65-68wt%, ammoniacal liquor 2-3, vulcanizing agent two 254-5, xitix 0.6-1, dimethyl fumarate 3-4, anti-aging agent CMA4-6.

A preparation method for the described cold effective rubber mass of Antimicrobial preservative cable accessory, comprises the following steps:

(1) get the 10-12% of above-mentioned tetrahydrofuran (THF) weight, add dimethyl fumarate, insulated and stirred 6-10 minute at 50-60 DEG C, adds Silane coupling agent KH550, and 300-400 rev/min is stirred 20-30 minute, be anticorrosion coupling agent;

(2) nitric acid of the sulfuric acid of above-mentioned 65-68wt%, 95-98wt% is mixed, stir, add carbon nanotube, ultrasonic agitation 20-24 hour, condensing reflux 50-60 minute at 120-140 DEG C, suction filtration, washing, dry, obtain acidifying carbon nanotube;

(3) by above-mentioned acidifying carbon nanotube, vinylformic acid, N, N'-Dicyclohexylcarbodiimide, remaining tetrahydrofuran (THF), DMAP mix, ultrasonic 20-30 minute, raised temperature is 60-65 DEG C, drips above-mentioned anticorrosion coupling agent, under nitrogen protection, magnetic agitation 46-50 hour, suction filtration, vacuum-drying, obtains silane-modified carbon nanotube;

(4) above-mentioned oxine is joined in 4-6 dehydrated alcohol doubly, stir;

(5) above-mentioned silane-modified carbon nanotube is joined in 100-120 times of deionized water, ultrasonic agitation 1-2 hour, add the ethanolic soln of tetraethoxy, ammoniacal liquor, above-mentioned oxine, insulation reaction 4-6 hour at 50-60 DEG C, suction filtration, washing, vacuum-drying, obtains carbon silicon hybridization matrix material;

(6) by above-mentioned sodium Diacetate, xitix mixing, stir, add the 60-70% of aforesaid propylene acid ten trifluoro monooctyl ester weight, 20-30 minute is uniformly mixed at 80-90 DEG C, mix with above-mentioned carbon silicon hybridization matrix material, be stirred to normal temperature, obtain antisepsis composite material;

(7) mixed with each raw material except vulcanizing agent two 25 by above-mentioned antisepsis composite material, send into mill mixing even, rubber unvulcanizate is carried out thin-pass, add vulcanizing agent two 25, compression molding on vulcanizing press, curing temperature is 168-170 DEG C.

Advantage of the present invention is:

Reaction mechanism of the present invention is:

Acrylic acid oligomer has arrived acidifying carbon nano tube surface by acetify reactive grafting, and acrylic acid reaction being introduced as next step provides a large amount of carboxyl reaction points, and numerous carboxylic groups can improve the dispersiveness of functionalized carbon nanotubes simultaneously; Then carboxyl can be easy to react with Silane coupling agent KH550, is transformed into siloxanes, is finally hydrolyzed to silica alcohol radical in the basic conditions again; Under alkaline environment, with silica alcohol radical for reflecting point, by the hydrolysis of positive silicic acid second vinegar, generate silica dioxide granule at functionalized carbon nanotubes surface in situ.

CABLE MATERIALS of the present invention has very high tensile strength and hardness, be due to:

(1) between carbon nanotube and the macromolecular chain of silicon rubber by opening refining effect, being mutually wound three-dimensional network structure;

(2) because silica modified carbon nano tube surface has silica dioxide granule, make the surface irregularity of pipe, when carbon nanometer tube/silicon rubber composite carries out stressed, the slippage between carbon nanotube and macromolecular chain becomes more difficult, is conducive to the raising of mechanical property;

(3) silica modified carbon nano tube surface contains a large amount of silicone hydroxyl, they can and the main chain of silicon rubber between there is hydrogen bond action, make the interface interaction between silica modified carbon nanotube and silicon rubber more firm.

8 hydroxyquinolines, sodium Diacetate, dimethyl fumarate etc. that the cold effective rubber mass of cable accessory of the present invention adds all have good Antimicrobial preservative performance, can improve the ageing resistance of rubber mass, postpone work-ing life.

Embodiment

The cold effective rubber mass of a kind of Antimicrobial preservative cable accessory, it is made up of the raw material of following weight parts:

The sulfuric acid 120 of 8 hydroxyquinolines 3, sodium Diacetate 2, vinylformic acid ten trifluoro monooctyl ester 10, silicon rubber 380, carbon nanotube 50, vinylformic acid 80, N, N' Dicyclohexylcarbodiimide 80,4 Dimethylamino pyridine 7, tetrahydrofuran (THF) 300, Silane coupling agent KH550 1.3,65wt%, the nitric acid 100 of 95wt%, tetraethoxy 30, ammoniacal liquor 2, vulcanizing agent are two 254, xitix 0.6, dimethyl fumarate 3, anti-aging agent CMA4.

A preparation method for the described cold effective rubber mass of Antimicrobial preservative cable accessory, comprises the following steps:

(1) get 10% of above-mentioned tetrahydrofuran (THF) weight, add dimethyl fumarate, at 50 DEG C, insulated and stirred 6 minutes, adds Silane coupling agent KH550, and 300 revs/min are stirred 20 minutes, are anticorrosion coupling agent;

(2) nitric acid of the sulfuric acid of above-mentioned 65wt%, 95wt% is mixed, stir, add carbon nanotube, ultrasonic agitation 20 hours, condensing reflux 50 minutes at 120 DEG C, suction filtration, washing, dry, obtain acidifying carbon nanotube;

(3) by above-mentioned acidifying carbon nanotube, vinylformic acid, N, N' Dicyclohexylcarbodiimide, remaining tetrahydrofuran (THF), 4 Dimethylamino pyridine mixing, ultrasonic 20 minutes, raised temperature is 60 DEG C, drips above-mentioned anticorrosion coupling agent, under nitrogen protection, magnetic agitation 46 hours, suction filtration, vacuum-drying, obtains silane-modified carbon nanotube;

(4) above-mentioned 8 hydroxyquinolines are joined in the dehydrated alcohol of 4 times, stir;

(5) above-mentioned silane-modified carbon nanotube is joined in 100 times of deionized waters, ultrasonic agitation 1 hour, add the ethanolic soln of tetraethoxy, ammoniacal liquor, above-mentioned 8 hydroxyquinolines, insulation reaction 4 hours at 50 DEG C, suction filtration, washing, vacuum-drying, obtains carbon silicon hybridization matrix material;

(6) by above-mentioned sodium Diacetate, xitix mixing, stir, add 60% of aforesaid propylene acid ten trifluoro monooctyl ester weight, at 80 DEG C, be uniformly mixed 20 minutes, mix with above-mentioned carbon silicon hybridization matrix material, be stirred to normal temperature, obtain antisepsis composite material;

(7) mixed with each raw material except vulcanizing agent two 25 by above-mentioned antisepsis composite material, send into mill mixing even, rubber unvulcanizate is carried out thin-pass, add vulcanizing agent two 25, compression molding on vulcanizing press, curing temperature is 168 DEG C.

Performance test:

Elongation at break: 515%;

Tensile strength: 7.4N/mm2;

Aging rear tensile strength retention rate (120 DEG C, 170h): 73%;

Aging rear extension at break retention rate (120 DEG C, 170h): 81%.

Claims (2)

1. the cold effective rubber mass of Antimicrobial preservative cable accessory, is characterized in that what it was made up of the raw material of following weight parts:

Oxine 3-4, sodium Diacetate 2-3, vinylformic acid ten trifluoro monooctyl ester 10-13, silicon rubber 380-400, carbon nanotube 50-60, vinylformic acid 80-90, N, nitric acid 100-130, the tetraethoxy 30-40 of sulfuric acid 120-150,95-98wt% of N'-Dicyclohexylcarbodiimide 80-100, DMAP 7-10, tetrahydrofuran (THF) 300-460, Silane coupling agent KH550 1.3-2,65-68wt%, ammoniacal liquor 2-3, vulcanizing agent two 254-5, xitix 0.6-1, dimethyl fumarate 3-4, anti-aging agent CMA4-6.

2. a preparation method for the cold effective rubber mass of Antimicrobial preservative cable accessory as claimed in claim 1, is characterized in that comprising the following steps:

(1) get the 10-12% of above-mentioned tetrahydrofuran (THF) weight, add dimethyl fumarate, insulated and stirred 6-10 minute at 50-60 DEG C, adds Silane coupling agent KH550, and 300-400 rev/min is stirred 20-30 minute, be anticorrosion coupling agent;

(2) nitric acid of the sulfuric acid of above-mentioned 65-68wt%, 95-98wt% is mixed, stir, add carbon nanotube, ultrasonic agitation 20-24 hour, condensing reflux 50-60 minute at 120-140 DEG C, suction filtration, washing, dry, obtain acidifying carbon nanotube;

(3) by above-mentioned acidifying carbon nanotube, vinylformic acid, N, N'-Dicyclohexylcarbodiimide, remaining tetrahydrofuran (THF), DMAP mix, ultrasonic 20-30 minute, raised temperature is 60-65 DEG C, drips above-mentioned anticorrosion coupling agent, under nitrogen protection, magnetic agitation 46-50 hour, suction filtration, vacuum-drying, obtains silane-modified carbon nanotube;

(4) above-mentioned oxine is joined in 4-6 dehydrated alcohol doubly, stir;

(5) above-mentioned silane-modified carbon nanotube is joined in 100-120 times of deionized water, ultrasonic agitation 1-2 hour, add the ethanolic soln of tetraethoxy, ammoniacal liquor, above-mentioned oxine, insulation reaction 4-6 hour at 50-60 DEG C, suction filtration, washing, vacuum-drying, obtains carbon silicon hybridization matrix material;

(6) by above-mentioned sodium Diacetate, xitix mixing, stir, add the 60-70% of aforesaid propylene acid ten trifluoro monooctyl ester weight, 20-30 minute is uniformly mixed at 80-90 DEG C, mix with above-mentioned carbon silicon hybridization matrix material, be stirred to normal temperature, obtain antisepsis composite material;

(7) mixed with each raw material except vulcanizing agent two 25 by above-mentioned antisepsis composite material, send into mill mixing even, rubber unvulcanizate is carried out thin-pass, add vulcanizing agent two 25, compression molding on vulcanizing press, curing temperature is 168-170 DEG C.