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High-performance freezing-resistant and flame-retardant chloroprene rubber covering material

A neoprene sheath and neoprene technology, applied in the direction of rubber insulators, organic insulators, conductors, etc., can solve the problems of poor cold resistance, decreased fluidity, low cold temperature, etc., to improve the flame retardant level and scope of application, Improved tensile strength and good tear resistance

Active Publication Date: 2013-05-22
安徽龙庵电缆集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chloroprene rubber is a crystalline rubber, and its unvulcanized rubber will crystallize after long-term storage, and its hardness will increase, and the unvulcanized rubber after compounding has a short storage period. More than one week, otherwise the rubber compound will be easily scorched, the plasticity will decrease, the fluidity will decrease, the extrusion surface will not be smooth, and the processing performance will gradually be lost
And its cold resistance is poor, without the addition of cold-resistant agent, its cold-resistant temperature is as low as -30°C, which cannot be used under harsher conditions.
Another disadvantage of neoprene is that it is easy to stick to the roller. When it is mixing rubber on the open mill, the sticking roller is very serious, so that the equipment must stop to remove the neoprene stuck to the roller, which often affects the production progress and rubber. scorching

Method used

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  • High-performance freezing-resistant and flame-retardant chloroprene rubber covering material

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Embodiment 1

[0031] A high-performance cold-resistant flame-retardant neoprene sheathing material, which is made up of the following raw materials in parts by weight (kg):

[0032] Neoprene CR3221 100

[0033] Zinc oxide 5

[0034] Magnesium oxide 3

[0035] Accelerator TMTD 0.75

[0036] Accelerator DM 0.8

[0037] Accelerator NA-22 0.70

[0038] stearic acid 2

[0039] Microcrystalline Paraffin 4.5

[0040] Antiaging agent ODA-40 3

[0041] Antimony trioxide 65

[0042] Tricresyl Phosphate 15

[0043] 5000 mesh talcum powder 15

[0044] N550 carbon black 35

[0045] Dioctyl sebacate 25

[0046] Bis(dioctyloxypyrophosphate)ethylene titanate 0.9

[0047] N, N'-m-phenylene bismaleimide 2

[0048] Modified sepiolite 3

[0049] The preparation method of described modified sepiolite is: add sepiolite to soak in (1.2) g / L potassium permanganate solution, 10% sodium hydroxide solution, remove impurities, then filter and wash to be neutral, calcined 450°C, 1 hour, grind into powder...

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Abstract

The invention discloses a high-performance freezing-resistant and flame-retardant chloroprene rubber covering material which comprises the following raw materials in parts by weight: chloroprene rubber CR3221, zinc oxide, magnesium oxide, accelerator TMTD, accelerator DM, accelerator NA-22, stearic acid, microcrystalline wax, anti-aging agent ODA-40, antimony trioxide, tritolyl phosphate, 2500-mesh talcum powder, N550 carbon black, dioctyl sebacate, bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, N,N'-m-phenylenedimaleimide and modified meerschaum. The freezing resistance of the high-performance freezing-resistant and flame-retardant chloroprene rubber covering material is high, and the low temperature resistance can reach -40 DEG C, while common chloroprene rubber has the freezing resistance of only -30 DEG C and can not be applicable to movable cables in cold areas.

Description

technical field [0001] The invention mainly relates to a rubber sheath material, in particular to a high-performance cold-resistant and flame-retardant neoprene sheath material. Background technique [0002] As we all know, chloroprene rubber is a rubber with good self-reinforcing properties. In addition, their polarity and intermolecular force are relatively large. When stretched, its molecules are not easy to slip off and chains are not easy to break. elongation and high tear strength. In addition, it has good fatigue resistance, elasticity, wear resistance, oil resistance, air tightness, aging resistance and ozone resistance, and is widely used as the sheath material layer of cables. However, chloroprene rubber is a crystalline rubber, and its unvulcanized rubber will crystallize after long-term storage, and its hardness will increase, and the unvulcanized rubber after compounding has a short storage period. If it is more than one week, otherwise the rubber compound...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08K13/06C08K9/04C08K9/02C08K3/22C08K5/09C08K5/523C08K3/34C08K3/04C08K5/11C08K5/3415H01B3/28H01B7/28H01B7/295
Inventor 王海岭何夕松张红艳张冬冬胡光辉
Owner 安徽龙庵电缆集团有限公司
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