CN103554894A - Environment-friendly type flame-retardant polyurethane rubber cable material - Google Patents

Abstract

The invention relates to a cable material and specifically relates to an environment-friendly type flame-retardant polyurethane rubber cable material. The cable material comprises the following materials in parts by weight: 35-45 parts of polyurethane rubber, 17-19 parts of silicon rubber, 12-15 parts of polycarbonate, 23-25 parts of N220 carbon black, 4-6 parts of zinc oxide, 10-15 parts of tetrapropyl fluororubber, 2.5-2.8 parts of dicumyl peroxide, 3-4 parts of triallyl isocyanurate, 3-5 parts of methyl methacrylate, 1-2 parts of 3-aminopropyl trimethoxy silane, 0.5-1 part of a cross-linking agent TAC (Triallyl Cyanurate), 20-24 parts of N550 carbon black, 10-12 parts of diatomite powder, 3-4 parts of acetyl triethyl citrate, 4-5 parts of tributyl citrate and 4-5 parts of auxiliaries. The cable material disclosed by the invention is combined with the advantages of the polyurethane rubber, silicon rubber, tetrapropyl fluororubber and polycarbonate, so that the performance of the conventional polyurethane rubber cable material is improved, and flame-retardant effect is excellent; meanwhile, the cable material has the advantages of good softness, high mechanical strength, low temperature resistance and the like, can satisfy using requirements of a special occasion, is harmless to the environment and a human body, and is wide in application prospect.

Description

A kind of urethanes CABLE MATERIALS of environmental-protection flame-retardant

Technical field

The present invention relates to a kind of CABLE MATERIALS, be specifically related to urethanes CABLE MATERIALS of a kind of environmental-protection flame-retardant 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 urethanes CABLE MATERIALS of environmental-protection flame-retardant is provided, promoted the performance of conventional urethane rubber cable material, make it possess superior flame retardant effect, possess good flexibility, physical strength is high simultaneously, 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 urethanes CABLE MATERIALS of environmental-protection flame-retardant, it is characterized in that, the component that this CABLE MATERIALS comprises following weight part: urethanes 35-45, silicon rubber 17-19, polycarbonate 12-15, N220 carbon black 23-25, zinc oxide 4-6,4 third viton 10-15, dicumyl peroxide 2.5-2.8, cyanacrylate 3-4, methyl methacrylate 3-5,3-aminopropyl trimethoxysilane 1-2, linking agent TAC 0.5-1, N550 carbon black 20-24, diatomite in powder 10-12, acetyl triethyl citrate 3-4, tributyl citrate 4-5, auxiliary agent 4-5.

The raw material that described auxiliary agent comprises following weight part: lazurite 30-34, diphenylmethanediisocyanate 3-4, tri (propylene glycol) diacrylate 3-4, magnesium oxide 5-6, zinc borate 2-3, jade powder 4-5, phenyl triethoxysilane 1-2, accelerant N a-22 1-2, aluminium nitride 4-5, morpholine 1-2, thiol-butyl tin 1-2, Radix Angelicae Sinensis oil 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.

The urethanes CABLE MATERIALS of described a kind of environmental-protection flame-retardant, its preparation method is as follows:

(1) by urethanes, silicon rubber, 4 third viton drop in Banbury mixer, 12-15min plasticates, when Banbury mixer temperature reaches 60-70 ℃, start discharging, after material to be mixed is completely cooling, drop in Banbury mixer, add diatomite in powder, mixing 4-5min, first add subsequently 2/3 N220 carbon black, mixing 3-5min, again remaining N220 carbon black is all added, 2-3min turns refining, finally add tributyl citrate, mixing 3-5min, when Banbury mixer temperature reaches 50-55 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add zinc oxide, dicumyl peroxide, thin-pass 6-8 time, mill working temperature≤60 ℃,

(2) by polycarbonate, methyl methacrylate, cyanacrylate, linking agent TAC,, 3-aminopropyl trimethoxysilane, N550 carbon black mix, and sends into twin screw extruder granulation;

(3) material step (1), step (2) being obtained is sent in Banbury mixer, and mixing 2-3min at 90-120 ℃, in cooling rear input mill, 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 urethanes, silicon rubber, 4 third viton and polycarbonate, promoted the performance of conventional urethane rubber cable material, make it possess superior flame retardant effect, possesses good flexibility simultaneously, the advantages such as physical strength is high, low temperature resistant, can meet the service requirements of specific occasion, and to environment and human body without harm, have a extensive future.

Embodiment

Embodiment

The raw material that the CABLE MATERIALS of the present embodiment comprises following weight part: urethanes 45, silicon rubber 18, polycarbonate 15, N220 carbon black 25, zinc oxide 6, four third viton 15, dicumyl peroxide 2.8, cyanacrylate 4, methyl methacrylate 5,3-aminopropyl trimethoxysilane 2, linking agent TAC 1, N550 carbon black 24, diatomite in powder 12, acetyl triethyl citrate 4, tributyl citrate 5, auxiliary agent 5.

The raw material that described auxiliary agent comprises following weight part: lazurite 34, diphenylmethanediisocyanate 4, tri (propylene glycol) diacrylate 4, magnesium oxide 5, zinc borate 3, jade powder 5, phenyl triethoxysilane 2, accelerant N a-22 2, aluminium nitride 4, morpholine 2, thiol-butyl tin 2, Radix Angelicae Sinensis oil 2; Preparation method puts into calcining furnace by lazurite at 570 ℃, to calcine 4 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.

The urethanes CABLE MATERIALS of described a kind of environmental-protection flame-retardant, its preparation method is as follows:

(1) by urethanes, silicon rubber, 4 third viton drop in Banbury mixer, 15min plasticates, when Banbury mixer temperature reaches 60 ℃, start discharging, after material to be mixed is completely cooling, drop in Banbury mixer, add diatomite in powder, mixing 5min, first add subsequently 2/3 N220 carbon black, mixing 5min, again remaining N220 carbon black is all added, 3min turns refining, finally add tributyl citrate, mixing 5min, when Banbury mixer temperature reaches 55 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add zinc oxide, dicumyl peroxide, thin-pass 8 times, mill working temperature≤60 ℃,

(2) by polycarbonate, methyl methacrylate, cyanacrylate, linking agent TAC,, 3-aminopropyl trimethoxysilane, N550 carbon black mix, and sends into twin screw extruder granulation;

(3) material step (1), step (2) being obtained is sent in Banbury mixer, and mixing 3min at 100 ℃, in cooling rear input mill, 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 obtain and improve, and possess good flame retardant properties simultaneously, soft tough and tensile, low temperature resistant.

The performance test results of CABLE MATERIALS of the present invention is: tensile strength is 17.9Mpa, elongation at break is 441%, and after 90 ℃ * 70h of IRM902 oil processes, tensile strength and elongation at break are respectively 17.2Mpa, 402%, under the condition of ozone concn 0.025%, 26 ℃ * 20h, without cracking phenomena, after 120 ℃ * 200h hot air aging, stretching strength retentivity 91.8%, elongation at break conservation rate is 92.3%, oxygen index reaches 42%, under-70 ℃ of conditions, after bending, does not ftracture.

Claims (2)

1. the urethanes CABLE MATERIALS of an environmental-protection flame-retardant, it is characterized in that, this CABLE MATERIALS is comprised of the raw material of following weight part: urethanes 35-45, silicon rubber 17-19, polycarbonate 12-15, N220 carbon black 23-25, zinc oxide 4-6, 4 third viton 10-15, dicumyl peroxide 2.5-2.8, cyanacrylate 3-4, methyl methacrylate 3-5, 3-aminopropyl trimethoxysilane 1-2, linking agent TAC 0.5-1, N550 carbon black 20-24, diatomite in powder 10-12, acetyl triethyl citrate 3-4, tributyl citrate 4-5, auxiliary agent 4-5,

The raw material that described auxiliary agent comprises following weight part: lazurite 30-34, diphenylmethanediisocyanate 3-4, tri (propylene glycol) diacrylate 3-4, magnesium oxide 5-6, zinc borate 2-3, jade powder 4-5, phenyl triethoxysilane 1-2, accelerant N a-22 1-2, aluminium nitride 4-5, morpholine 1-2, thiol-butyl tin 1-2, Radix Angelicae Sinensis oil 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.

2. the urethanes CABLE MATERIALS of a kind of environmental-protection flame-retardant as claimed in claim 1, its manufacture craft is as follows:

(1) by urethanes, silicon rubber, 4 third viton drop in Banbury mixer, 12-15min plasticates, when Banbury mixer temperature reaches 60-70 ℃, start discharging, after material to be mixed is completely cooling, drop in Banbury mixer, add diatomite in powder, mixing 4-5min, first add subsequently 2/3 N220 carbon black, mixing 3-5min, again remaining N220 carbon black is all added, 2-3min turns refining, finally add tributyl citrate, mixing 3-5min, when Banbury mixer temperature reaches 50-55 ℃, start discharging, after material to be mixed is completely cooling, drop in mill, add zinc oxide, dicumyl peroxide, thin-pass 6-8 time, mill working temperature≤60 ℃,

(2) by polycarbonate, methyl methacrylate, cyanacrylate, linking agent TAC,, 3-aminopropyl trimethoxysilane, N550 carbon black mix, and sends into twin screw extruder granulation;

(3) material step (1), step (2) being obtained is sent in Banbury mixer, and mixing 2-3min at 90-120 ℃, in cooling rear input mill, adds other remaining components, and thin-pass 6-7 time, obtains rubber mass of the present invention.