Nano composite ethylene-propylene rubber cable material and its preparation method

An ethylene-propylene rubber and nano-composite technology, which is applied in the direction of insulated cables, cables, circuits, etc., can solve the problems such as the inability to obtain aging-resistant cable outer insulation materials, the inability to meet the anti-oxidation performance of cable materials, and the decrease in flexibility. Flexibility, high flexibility, improved flame retardant properties

Active Publication Date: 2012-02-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But no matter it is the cable material or its preparation method, there are deficiencies. First, although the flame retardancy of the cable material has been improved, it has caused its mechanical properties, especially the flexibility, to decline significantly, so that It cannot be applied to occasions such as mines and ships that require frequent movement and high flexibility; secondly, the anti-oxidation properties of cable materials are also difficult to meet some extreme conditions, such as the use requirements of nuclear power plants; Cable outer insulation material with high flexibility, aging resistance and halogen-free flame retardancy requirements

Method used

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  • Nano composite ethylene-propylene rubber cable material and its preparation method

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Embodiment 1

[0031] The concrete steps of preparation are:

[0032] Step 1, first according to the weight ratio between EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, antioxidant, vulcanization activator and peroxide is 100:1:10:50: The ratio of 10:10:10 was weighed respectively. Then add the corresponding amount of EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, anti-aging agent, vulcanization activator and peroxide into the open mill or internal mixer in sequence; wherein, The nano-composite is nano-montmorillonite and nano-calcium carbonate with a weight ratio of 1:0.5, wherein the nano-montmorillonite is a layered silicate with a layer spacing of 0.9nm and a cation exchange capacity of 60meq / 100g, and nano-carbonate The particle size of calcium is 100nm, the organic modifier is methacrylic acid, the inorganic metal hydroxide is aluminum hydroxide, and the anti-aging agent is 2,2,4-trimethyl-1,2- Dihydroquinoline polymer and 2-mercapt...

Embodiment 2

[0035] The concrete steps of preparation are:

[0036]Step 1, first according to the weight ratio between EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, antioxidant, vulcanization activator and peroxide is 100:6:8:85: 8:13:5.5 ratio, weigh them respectively. Then add the corresponding amount of EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, anti-aging agent, vulcanization activator and peroxide into the open mill or internal mixer in sequence; wherein, The nano-composite is nano-montmorillonite and nano-calcium carbonate with a weight ratio of 1:0.9, wherein the nano-montmorillonite is a layered silicate with a layer spacing of 1nm and a cation exchange capacity of 70meq / 100g, and nano-calcium carbonate The particle size is 78nm, the organic modifier is methacrylic acid, the inorganic metal hydroxide is aluminum hydroxide, and the anti-aging agent is 2,2,4-trimethyl-1,2-bis with a weight ratio of 3:1.5 Hydroquinoline polyme...

Embodiment 3

[0039] The concrete steps of preparation are:

[0040] Step 1, first according to the weight ratio between EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, antioxidant, vulcanization activator and peroxide is 100:10:5.5:125: 5.5:15:3 ratio, weigh them respectively. Then add the corresponding amount of EPDM rubber, nano compound, organic modifier, inorganic metal hydroxide, anti-aging agent, vulcanization activator and peroxide into the open mill or internal mixer in sequence; wherein, The nano-composite is nano-montmorillonite and nano-calcium carbonate with a weight ratio of 1:1.25, wherein the nano-montmorillonite is a layered silicate with a layer spacing of 1.1nm and a cation exchange capacity of 85meq / 100g, and nano-carbonate The particle size of calcium is 55nm, the organic modifier is methacrylic acid, the inorganic metal hydroxide is aluminum hydroxide, and the anti-aging agent is 2,2,4-trimethyl-1,2- Dihydroquinoline polymer and 2-mercaptoben...

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Abstract

The invention discloses a nano composite ethylene-propylene rubber cable material and its preparation method. The material is composed of ethylene-propylene-diene rubber, a nano compound, an organic modifier, inorganic metal hydroxide, an aging resister, a curing active agent and a peroxide according to 100:1-20:0.5-10:50-200:0.5-10:10-20:0.1-10, wherein, the nano compound is nano montmorillonite and nano calcium carbonate according to the weight ratio of 1:0.5-2, the organic modifier is a silane coupling agent or a titanic acid coupling agent or methacrylic acid or acrylic acid, the curing active agent is zinc oxide and stearic acid, the peroxide is dicumyl peroxide. The preparation method comprises the following steps: proportioning the raw materials according to the weight, successively adding the raw materials with the corresponding weight into an open mill or an internal mixer for mixing, placing on a plate vulcanizing machine for vulcanizing, producing the products with zero-halogen flame-retardant, age resistance and excellent mechanical property. The products is suitable for the occasions with requirement of zero-halogen flame-retardant, age resistance and frequent movement in the nuclear power plants, warships, mining industry and the like.

Description

technical field [0001] The invention relates to a rubber cable material and a preparation method thereof, in particular to a nanocomposite ethylene-propylene rubber cable material and a preparation method thereof. Background technique [0002] Cables are the blood vessels and nerves of the national economy. With the construction of various infrastructures and the development trend of electrification and informatization in the future, the demand for cables is becoming more and more extensive; It is composed of polyolefins such as ethylene, so it generally has the defect of being flammable. In order to overcome this defect, people have made some attempts and efforts, such as "a radiation-resistant low-smoke halogen-free flame-retardant ethylene-propylene rubber" disclosed in the Chinese invention patent application publication CN 100999598A published on July 18, 2007 Preparation method of cable material". It is made of 100 parts of ethylene-propylene rubber, 90-150 parts of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/34C08K3/26C08K3/22C08K5/14C08K5/37H01B7/295H01B3/44
Inventor 张献田兴友包超陈洪莲王宗涛
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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