125 DEG C irradiation crosslinking oil-resistant low-smoke halogen-free flame retardant cable material and preparation method thereof

A flame-retardant cable material and irradiation technology, which is applied in the direction of cable/conductor manufacturing, cable insulation, conductor/cable insulation, etc., can solve the problems of high scrap rate, little practical application value, complicated production process, etc.

Active Publication Date: 2014-07-23
中广核三角洲(江苏)塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in order to meet the requirements of halogen-free flame retardant and European standard oil resistance, domestic railway locomotive cables adopt a double-layer structure, that is, the inner insulating layer is a halogen-free flame-retardant compound (providing halogen-free flame-retardant performance), and the outer The insulation material of the first layer is nylon or TPEE (thermoplastic polyester elastomer, which is formed by the copolymerization and condensation of 1,4-butanediol and polybutylene glycol and terephthalate DMT or terephthalic acid PTA) material (provided High oil resistance and wear resistance), but the production process of this kind of cable is complicated, the scrap rate is high, the cost is high, and the practical application value is not great

Method used

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  • 125 DEG C irradiation crosslinking oil-resistant low-smoke halogen-free flame retardant cable material and preparation method thereof
  • 125 DEG C irradiation crosslinking oil-resistant low-smoke halogen-free flame retardant cable material and preparation method thereof
  • 125 DEG C irradiation crosslinking oil-resistant low-smoke halogen-free flame retardant cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Example 1: A radiation-crosslinked, oil-resistant, low-smoke, halogen-free, flame-retardant cable material with a temperature resistance rating of 125°C

[0075] 1. Material formula

[0076]

[0077] 2. Preparation process

[0078] The first step: mix the copolymer of ethylene vinyl acetate copolymer EVA, nylon 12 elastomer and nylon 12 grafted maleic anhydride in a high-speed mixer for 30 seconds at a high speed according to the formula weight, and then pass through a twin-screw granulator Mixing and plasticizing granulation, the processing temperature is: conveying section 130-140°C, melting section 150-165°C, mixing section 170-180°C, exhaust section 165-175°C, homogenizing section 165-175°C, machine head 170~180℃;

[0079] Step 2: Add the above materials into magnesium hydroxide flame retardant, montmorillonite synergistic flame retardant, silicone masterbatch, lubricant, cross-linking sensitizer triallyl isotrimer Cyanate ester TAIC, silane coupling agent, an...

Embodiment 2

[0083] Example 2: A radiation-crosslinked, oil-resistant, low-smoke, halogen-free, flame-retardant cable material with a temperature resistance rating of 125°C

[0084] 1. Material formula

[0085]

[0086] 2. Preparation process

[0087] Same as embodiment one.

[0088] 3. Technical indicators

[0089]

Embodiment 3

[0090] Example 3: A radiation-crosslinked, oil-resistant, low-smoke, halogen-free, flame-retardant cable material with a temperature resistance rating of 125°C

[0091] 1. Material formula

[0092]

[0093] 2. Preparation process

[0094] Same as embodiment one.

[0095] 3. Technical indicators

[0096]

[0097] As can be seen from the foregoing examples, the present invention is modified by adding nylon PA12 elastomer and nylon PA12 grafting material in the material formula, so that the insulating compound and the sheath compound base material for locomotives are modified, and the product quality is improved. Oil resistance performance, meeting the standard requirements of EN50264 for halogen-free insulating compound and halogen-free sheath compound.

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Abstract

The invention discloses a 125 DEG C irradiation crosslinking oil-resistant low-smoke halogen-free flame retardant cable material which is characterized in that a raw material formula consists of the following materials in parts by weight: 100 parts of ethylene vinyl acetate copolymer EVA, 5-15 parts of nylon 12 elastomer, 4-12 parts of nylon 12 grafted maleic anhydride copolymer, 120-165 parts of a magnesium hydrate flame retardant, 1.5-6.0 parts of a montmorillonoid synergic flame retardant, 2-4 parts of silicone master batch, 0.8-1.2 parts of a lubricant, 2-3 parts of a crosslinking sensitizing agent triallyl isocyanuric acid ester TAIC, 0.7-1.5 parts of a silane coupling agent, 0.7-1.2 parts of an antioxidant 1010, 0.7-1.2 parts of an antioxidant DLTP and 0.3-0.8 part of an anti-aging agent RD. By adopting the scheme, a halogen-free flame retardant insulating mixture material and a sheath mixture material which meet the EN50264 standard can be produced, the materials are good in comprehensive properties such as oil resistance, wearing resistance, flame retardancy, a machining process of a locomotive cable is simplified, and social values are achieved when the oil-resistant locomotive cable is used.

Description

technical field [0001] The invention belongs to the technical field of wire and cable materials, and in particular relates to a radiation cross-linked oil-resistant low-smoke halogen-free flame-retardant cable material with a temperature resistance level of 125°C and a preparation method thereof. The cable material is mainly used for railway locomotive vehicles with standard wall thickness Halogen-free insulation compound and halogen-free sheath compound for fuel cables. Background technique [0002] In recent years, railway transportation has become more and more important in people's daily life. With the rapid development of railway industry, people's trust and dependence on railway transportation are increasing day by day. The country also attaches great importance to the development of railway transportation. Related industries have brought huge business opportunities. At present, the international standards for locomotive cables mainly include the European standard EN5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L77/02C08L51/08C08L83/04C08K13/06C08K9/06C08K3/22C08K3/34C08K5/3492C08J3/22H01B3/44H01B7/02H01B7/18H01B7/28H01B7/295H01B13/14H01B13/24
CPCB29C48/92B29C2948/92704C08K2201/003C08L23/0853C08L2201/02C08L2201/22C08L2203/202C08L2205/035C08L2312/06H01B3/441C08L77/02C08L51/08C08L83/04C08K13/06C08K9/06C08K2003/2224C08K3/34C08K5/34924
Inventor 曾光新
Owner 中广核三角洲(江苏)塑化有限公司
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