High-performance flame-retardant cable material and preparation method thereof

Abstract

The invention discloses a high-performance flame-retardant cable material. The high-performance flame-retardant cable material comprises the following raw materials: 200 parts of EVA, 2 to 4 parts of modified hydrotalcite, 2 to 9 parts of an antioxidant, 2 to 10 parts of a promoter, 0.8 to 1.8 parts of a plasticizer and 6 to 12 parts of a nanometer activator. The invention further discloses a preparation method for the flame-retardant cable material. Through usage of nanometer synergistic modification flame-retardation EVA, the cable material has good mechanical properties, flame retardation and heat resistance.

Description

[0001] technical field

[0002] The invention relates to the technical field of cable materials, in particular to a high-performance cable retardant and a preparation method thereof. Background technique

[0003] With the continuous development of computer and network engineering, out of consideration for the safety of the computer room, people are increasingly using halogen-free flame-retardant cables and silane cross-linked cables. Because EVA resin has good filler tolerance and crosslinkability, it is widely used in halogen-free flame-retardant cables, semiconductor shielded cables and two-step silane crosslinked cables. In addition, EVA resin is also used to make sheaths for some special cables. The EVA resin used in wire and cable generally has a vinyl acetate content of 12% to 24%.

[0004] The classification of flame retardants can be divided into halogen series, organophosphorus series, halogen phosphorus series, silicon series, aluminum magnesium series, molybde...

Examples

Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0030] The embodiment of the present invention raw material:

[0031] EVA (Elvax 360) 100 parts, American DuPont, melt flow rate is 2 g / 10 min, density is 0.948g / cm 3 ; 2-4 parts of modified hydrotalcite, 2-9 parts of anti-aging agent, 2-10 parts of accelerator, 0.8-1.8 parts of plasticizer, 6-12 parts of nano active agent;

[0032] Preparation method of modified hydrotalcite LDHs

[0033] Dispersion of magnesium aluminum hydrotalcite in CO removal 2 After making a slurry in deionized water, the NaH 2 PO 4 2H 2 Dissolve O in water to form a supersaturated solution and slowly pour it into the slurry, heat and stir, adjust the pH to 4.2~4.3 with dilute nitric acid, and reac...

[0001] technical field

[0002] The invention relates to the technical field of cable materials, in particular to a high-performance cable retardant and a preparation method thereof. Background technique

[0003] With the continuous development of computer and network engineering, out of consideration for the safety of the computer room, people are increasingly using halogen-free flame-retardant cables and silane cross-linked cables. Because EVA resin has good filler tolerance and crosslinkability, it is widely used in halogen-free flame-retardant cables, semiconductor shielded cables and two-step silane crosslinked cables. In addition, EVA resin is also used to make sheaths for some special cables. The EVA resin used in wire and cable generally has a vinyl acetate content of 12% to 24%.

[0004] The classification of flame retardants can be divided into halogen series, organophosphorus series, halogen phosphorus series, silicon series, aluminum magnesium series, molybde...

Examples

Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the examples, so as to fully understand and implement the implementation process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0030] The embodiment of the present invention raw material:

[0031] EVA (Elvax 360) 100 parts, American DuPont, melt flow rate is 2 g / 10 min, density is 0.948g / cm 3 ; 2-4 parts of modified hydrotalcite, 2-9 parts of anti-aging agent, 2-10 parts of accelerator, 0.8-1.8 parts of plasticizer, 6-12 parts of nano active agent;

[0032] Preparation method of modified hydrotalcite LDHs

[0033] Dispersion of magnesium aluminum hydrotalcite in CO removal 2 After making a slurry in deionized water, the NaH 2 PO 4 2H 2 Dissolve O in water to form a supersaturated solution and slowly pour it into the slurry, heat and stir, adjust the pH to 4.2~4.3 with dilute nitric acid, and reac...

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