CN103524809A

CN103524809A - Modified nitrile rubber cable material with excellent mechanical properties

Info

Publication number: CN103524809A
Application number: CN201310511588.2A
Authority: CN
Inventors: 徐文利
Original assignee: Anhui Venfi Electric Technology Group Co Ltd
Current assignee: Anhui Venfi Electric Technology Group Co Ltd
Priority date: 2013-10-25
Filing date: 2013-10-25
Publication date: 2014-01-22

Abstract

The invention relates to a cable material, and particularly relates to a modified nitrile rubber cable material with excellent mechanical properties. The cable material is prepared from the following raw materials in parts by weight: 30-34 parts of nitrile rubber (LG6250), 4-7 parts of fluororubber, 20-24 parts of chloroprene rubber (CR121), 4-5 parts of polyisobutene, 12-15 parts of metallocene linear low density polyethylene, 12-15 parts of N339 carbon black, 14-18 parts of N660 carbon black, 14-17 parts of nano calcium carbonate, 10-12 parts of barium sulfate powder, 3-4 parts of talcum powder, 1-2 parts of benzoic acid, 5-8 parts of isophthalic acid ester, 25-35 parts of white carbon black, 2-3 parts of sulphur, 2-3 parts of magnesium oxide, 2-3 parts of aniline methyl triethoxy silane, 1-2 parts of scorch retarder CTP, 1-2 parts of accelerant CZ, and 4-5 parts of addition agent. The cable material combines the advantages of the raw materials such as nitrile rubber, fluororubber, chloroprene rubber and metallocene linear low density polyethylene, so that the properties of traditional nitrile rubber cable materials are improved, and the cable material has excellent mechanical properties, has the characteristics such as high strength, high tenacity and stretch resistance, meets the use requirements of specific occasions, and has no harm to environment and human bodies, and wide application prospect.

Description

A kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property

Technical field

The present invention relates to a kind of CABLE MATERIALS, be specifically related to a kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property and preparation method thereof.

Background technology

Along with expanding economy, the market of cable is wide, promoting the progress of CABLE MATERIALS production technology, CABLE MATERIALS is not only of many uses, and its performance index are had to special requirement, such as insulativity, tensile strength, use temperature, the indexs such as flame retardant properties all have strict requirement, constantly improve the performance of CABLE MATERIALS, it is the active demand of economy and social development, there is poor fire more in traditional CABLE MATERIALS, high temperature is yielding, poor mechanical property, the problems such as work-ing life is short, bring a lot of inconvenience to actual use, even threaten people's the security of the lives and property, therefore, be badly in need of changing original CABLE MATERIALS formula, improve material property, with the various demand in appropriate cable market.

Summary of the invention

The object of the invention is to, a kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property is provided, promoted the performance of traditional paracril CABLE MATERIALS, make it possess good mechanical property, can adapt to various rugged environment conditions, to achieve these goals, the technical solution used in the present invention is as follows:

A kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property, it is characterized in that, the component that this CABLE MATERIALS comprises following weight part: paracril (LG6250) 30-34, viton 4-7, chloroprene rubber (CR121) 20-24, polyisobutene 4-5, metallocene linear-low density polyethylene 12-15, N339 carbon black 12-15, N660 carbon black 14-18, nano-calcium carbonate 14-17, blaue fixe 10-12, talcum powder 3-4, phenylformic acid 1-2, isophthalic acid ester 5-8, white carbon black 25-35, sulphur 2-3, magnesium oxide 2-3, anilinomethyl triethoxysilane 2-3, anti-scorching agent CTP 1-2, accelerant CZ 1-2, auxiliary agent 4-5.

The raw material that described auxiliary agent comprises following weight part: lazurite 30-35, hexamethylene diisocyanate 4-5, tri (propylene glycol) diacrylate 2-3, zinc oxide 5-6, jade 4-5,3-aminopropyl trimethoxysilane 2-3, anilinomethyl triethoxysilane 1-2, diethylenetriamine 4-5, morpholine 1-2, Radix Angelicae Sinensis oil 1-2, anti-aging agent TPPD 1-2; Preparation method puts into calcining furnace by lazurite to calcine 3-4 hour at 550-570 ℃, cooling, be ground into and put into 12-15% hydrochloric acid soln after 50-100 order and soak 2-3 hour, filter out lazurite powder, clear water is cleaned, and dries, be ground into 200-300 order powder, mix with other remaining component, grinding distribution 1-2 hour, obtains.

Described a kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property, its preparation method is as follows:

(1) paracril (LG6250), chloroprene rubber (CR121) are dropped in Banbury mixer, the 12-15min that plasticates, when Banbury mixer temperature reaches 100-130 ℃, starts discharging, and the material of plasticating is cooling standby;

(2) viton is dropped in Banbury mixer, the 12-15min that plasticates, when Banbury mixer temperature reaches 50-60 ℃, starts discharging, and the material of plasticating is cooling standby;

(3) material of plasticating (1), (2) being obtained drops in Banbury mixer, add phenylformic acid, mixing 4-5min, then add magnesium oxide, nano-calcium carbonate, follow mixing 3-5min, first 2/3 N339 carbon black is added subsequently, mixing 3-5min, more remaining N339 carbon black is all added, 3-4min turns refining, when Banbury mixer temperature reaches 90-95 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add talcum powder, sulphur, anti-scorching agent CTP, accelerant CZ, thin-pass 6-8 time, working temperature≤60 ℃ of mill;

(4) metallocene linear-low density polyethylene, polyisobutene, isophthalic acid ester, anilinomethyl triethoxysilane, white carbon black are mixed, send into twin screw extruder granulation;

(5) material step (3), step (4) being obtained is sent in Banbury mixer, and mixing 5-6min at 110-130 ℃ sends in mill after cooling, adds other remaining components, and thin-pass 6-7 time, obtains rubber mass of the present invention.

The present invention combines the advantage of the raw materials such as paracril, viton, chloroprene rubber and metallocene linear-low density polyethylene, promoted the performance of traditional paracril CABLE MATERIALS, make it possess good mechanical property, there is the characteristics such as high strength, high tenacity, stretch-proof, can meet the service requirements of specific occasion, and environment and human body, without harm, are had a extensive future.

Embodiment

The raw material that the CABLE MATERIALS of the present embodiment comprises following weight part: paracril (LG6250) 34, viton 6, chloroprene rubber (CR121) 24, polyisobutene 5, metallocene linear-low density polyethylene 15, N339 carbon black 15, N660 carbon black 16, nano-calcium carbonate 15, blaue fixe 12, talcum powder 4, phenylformic acid 2, isophthalic acid ester 8, white carbon black 35, sulphur 2, magnesium oxide 3, anilinomethyl triethoxysilane 3, anti-scorching agent CTP 1, accelerant CZ 2, auxiliary agent 4.

The raw material that described auxiliary agent comprises following weight part: lazurite 35, hexamethylene diisocyanate 4, tri (propylene glycol) diacrylate 3, zinc oxide 6, jade 4,3-aminopropyl trimethoxysilane 2, anilinomethyl triethoxysilane 2, diethylenetriamine 4, morpholine 2, Radix Angelicae Sinensis oil 2, anti-aging agent TPPD 2; Preparation method puts into calcining furnace by lazurite at 570 ℃, to calcine 3 hours, cooling, is ground into put into 15% hydrochloric acid soln after 80 orders and soak 3 hours, filters out lazurite powder, clear water is cleaned, and dries, and is ground into 300 order powder, mix with other remaining component, grinding distribution 2 hours, obtains.

(1) paracril (LG6250), chloroprene rubber (CR121) are dropped in Banbury mixer, the 15min that plasticates, when Banbury mixer temperature reaches 120 ℃, starts discharging, and the material of plasticating is cooling standby;

(2) viton is dropped in Banbury mixer, the 12-15min that plasticates, when Banbury mixer temperature reaches 60 ℃, starts discharging, and the material of plasticating is cooling standby;

(3) material of plasticating (1), (2) being obtained drops in Banbury mixer, add phenylformic acid, mixing 5min, then add magnesium oxide, nano-calcium carbonate, follow mixing 5min, first 2/3 N339 carbon black is added subsequently, mixing 5min, more remaining N339 carbon black is all added, min turns refining, when Banbury mixer temperature reaches 95 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add talcum powder, sulphur, anti-scorching agent CTP, accelerant CZ, thin-pass 8 times, working temperature≤60 ℃ of mill;

(5) material step (3), step (4) being obtained is sent in Banbury mixer, and mixing 6min at 120 ℃ sends in mill after cooling, adds other remaining components, and thin-pass 7 times, obtains rubber mass of the present invention.

CABLE MATERIALS prepared by the present invention, mechanical property is effectively improved, and the indexs such as tensile strength, elongation at break, hardness all obtain effective raising.

The performance test results of CABLE MATERIALS of the present invention is: tensile strength is 18.6Mpa, elongation at break is 458%, after 90 ℃ * 70h of IRM902 oil processes, tensile strength and elongation at break are respectively 17.6Mpa, 418%, shore hardness is 93 degree, after 136 ℃ * 168h heat ageing test, CABLE MATERIALS strength retention of the present invention is 93.3%, and elongation at break conservation rate is 92.5%.

Claims

1. a modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property, it is characterized in that, this CABLE MATERIALS is comprised of the raw material of following weight part: paracril (LG6250) 30-34, viton 4-7, chloroprene rubber (CR121) 20-24, polyisobutene 4-5, metallocene linear-low density polyethylene 12-15, N339 carbon black 12-15, N660 carbon black 14-18, nano-calcium carbonate 14-17, blaue fixe 10-12, talcum powder 3-4, phenylformic acid 1-2, isophthalic acid ester 5-8, white carbon black 25-35, sulphur 2-3, magnesium oxide 2-3, anilinomethyl triethoxysilane 2-3, anti-scorching agent CTP 1-2, accelerant CZ 1-2, auxiliary agent 4-5,

2. a kind of modified butadiene acrylonitrile rubber CABLE MATERIALS that possesses good mechanical property as claimed in claim 1, its manufacture craft is as follows:

(3) material of plasticating step (1), step (2) being obtained drops in Banbury mixer, add phenylformic acid, mixing 4-5min, then add magnesium oxide, nano-calcium carbonate, follow mixing 3-5min, first 2/3 N339 carbon black is added subsequently, mixing 3-5min, more remaining N339 carbon black is all added, 3-4min turns refining, when Banbury mixer temperature reaches 90-95 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add talcum powder, sulphur, anti-scorching agent CTP, accelerant CZ, thin-pass 6-8 time, working temperature≤60 ℃ of mill;