High-flexibility, oil-resistant, low-smoke, halogen-free and flame-retardant cable material and preparation method thereof

A kind of flame retardant cable material, soft technology, applied in circuits, electrical components, plastic/resin/wax insulators and other directions, can solve the problems of complex processing, oil and temperature resistance hidden dangers, defects, etc., to improve mechanical properties, The effect of improving the heat resistance level and low smoke density

Pending Publication Date: 2022-02-18
河北尚华新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the cable products produced by vulcanized rubber have a long application time, but in terms of production and processing technology, they are different from ordinary thermoplastic wire and cable materials, and the processing process is complicated; There are hidden dangers and defects in aspects such as heat resistance and temperature resistance; at the same time, based on the particularity of the use of locomotive cables, its performance in thin-wall extrusion, low bending radius or narrow space is also an important factor affecting the cable materials for locomotives. Therefore, Finding a cable material for locomotives with high flexibility, oil resistance and excellent comprehensive performance is of great significance to the safe operation of railway vehicles

Method used

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  • High-flexibility, oil-resistant, low-smoke, halogen-free and flame-retardant cable material and preparation method thereof
  • High-flexibility, oil-resistant, low-smoke, halogen-free and flame-retardant cable material and preparation method thereof
  • High-flexibility, oil-resistant, low-smoke, halogen-free and flame-retardant cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This example provides a highly flexible, oil-resistant low-smoke halogen-free flame-retardant cable material, the raw material formula of which is shown in Table 1, wherein:

[0052]Above-mentioned first class ethylene-vinyl acetate copolymer (EVA1) is the EV45LX of Mitsui-DuPont Company;

[0053] Above-mentioned second class ethylene-vinyl acetate copolymer (EVA2) is EVA260 of Mitsui-DuPont;

[0054] The fineness of the above-mentioned aluminum hydroxide is 10000 mesh, and the surface is modified by silane.

[0055] The preparation method of the above-mentioned highly flexible and oil-resistant low-smoke halogen-free flame-retardant cable material comprises the following steps:

[0056] Step A, weighing each component according to the above-mentioned raw material ratio;

[0057] Step B. Put the above-mentioned matrix resin material, antioxidant, inorganic flame retardant, auxiliary flame retardant, auxiliary crosslinking agent and processing aid in a high-speed mixer...

Embodiment 2

[0060] This example provides a highly flexible, oil-resistant low-smoke halogen-free flame-retardant cable material, the raw material formula of which is shown in Table 1, wherein:

[0061] Above-mentioned first class ethylene-vinyl acetate copolymer (EVA1) is the EV45LX of Mitsui-DuPont Company;

[0062] Above-mentioned second class ethylene-vinyl acetate copolymer (EVA2) is EVA260 of Mitsui-DuPont;

[0063] The fineness of the above-mentioned aluminum hydroxide is 10000 mesh, and the surface is modified by silane.

[0064] The preparation method of the above-mentioned highly flexible and oil-resistant low-smoke halogen-free flame-retardant cable material is as described in Example 1, and will not be repeated here.

Embodiment 3

[0066] This example provides a highly flexible, oil-resistant low-smoke halogen-free flame-retardant cable material, the raw material formula of which is shown in Table 1, wherein:

[0067] Above-mentioned first class ethylene-vinyl acetate copolymer (EVA1) is the EV45LX of Mitsui-DuPont Company;

[0068] Above-mentioned second class ethylene-vinyl acetate copolymer (EVA2) is EVA260 of Mitsui-DuPont;

[0069] The fineness of the above-mentioned aluminum hydroxide is 10000 mesh, and the surface is modified by silane.

[0070] The preparation method of the above-mentioned highly flexible and oil-resistant low-smoke halogen-free flame-retardant cable material is as described in Example 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of polymer composite materials, and particularly discloses a high-flexibility, oil-resistant, low-smoke, halogen-free and flame-retardant cable material and a preparation method thereof. The cable material is prepared from the following components in parts by weight: 10 to 16 parts of polyurethane elastomer, 20 to 32 parts of first type ethylene-vinyl acetate copolymer, 20 to 40 parts of second type ethylene-vinyl acetate copolymer, 8 to 16 parts of compatilizer, 0 to 15 parts of high-density polyethylene resin, 6 to 12 parts of polyolefin plastomer, 0.8 to 1.2 parts of antioxidant, 1.6 to 2.4 parts of processing aid, 70 to 180 parts of inorganic flame retardant, 19 parts to 56 parts of an assistant flame retardant and 1.4 parts to 2.6 parts of an assistant cross-linking agent. The polyurethane, the ethylene-vinyl acetate copolymer, the compatilizer, the polyolefin plastomer and the like are compounded, so that the cable material has excellent oil resistance, temperature resistance and mechanical properties.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a highly flexible, oil-resistant low-smoke halogen-free flame-retardant cable material and a preparation method thereof. Background technique [0002] my country's railway construction has made brilliant achievements, and will continue to develop and grow. At present, the standards that can be applied to railway and rail transit vehicle cables mainly include: GB / T12528 AC rated voltage 3kV and below rail transit vehicle cables, TB / T1484 rolling stock cables and EN50264 Railway equipment - railway vehicles with special combustion performance Use power cables and control cables, etc. [0003] Rail transit vehicles have more special requirements for cables due to their operating space, which are mainly reflected in the following aspects: Due to the limited space of trains, cable materials are required to develop in the direction of light weight and thin walls; d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L75/04C08L83/00C08K9/06C08K9/04C08K3/22C08K7/10C08K5/54H01B3/44
CPCC08L23/0853H01B3/441C08L2203/202C08L2201/02C08L2201/22C08K2003/2227C08K2003/2224C08L75/04C08L83/00C08K9/06C08K3/22C08K7/10C08K5/54C08K9/04
Inventor 孟强杜敬亮刘秀青杜敬辉尹会凯李兴旺李霞
Owner 河北尚华新材料股份有限公司
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