High-flexibility and flame-retardant halogen-free cable material and preparation method thereof

[0036] A highly flexible flame-retardant halogen-free cable material, which consists of the following raw materials in parts by weight:

[0037] 100 parts of EPDM rubber, 3 parts of anti-aging agent, 45 parts of halogen-free flame retardant, 1 part of antioxidant, 8 parts of nanocomposite material, 8 parts of paraffin oil, 2 parts of crosslinking agent and 1 part of coupling agent.

[0038] Preferably, the Mooney viscosity range of the EPDM rubber is 45.

[0039] Preferably, the preparation method of the nanocomposite material is as follows: mix 7 parts by weight of silicon dioxide, 1 part by weight of carbon black, 2 parts by weight of sorbitol and 2.5 parts by weight of trehalose, and grind until the particle size is 35nm, that is, nano composite material.

[0040] Preferably, the crosslinking agent is a mixture of ethoxylated trimethylolpropane triacrylate and dicumyl peroxide in a mass ratio of 0.5:1.

[0041] Preferably, the coupling agent is a mixture of polydimethylsi...

[0049] A highly flexible flame-retardant halogen-free cable material, which consists of the following raw materials in parts by weight:

[0050] 100 parts of EPDM rubber, 1 part of antioxidant, 55 parts of halogen-free flame retardant, 0.5 part of antioxidant, 3 parts of nanocomposite material, 5 parts of paraffin oil, 1 part of crosslinking agent and 0.5 part of coupling agent;

[0051] in,

[0052]The Mooney viscosity range of the EPDM rubber is 41;

[0053] The preparation method of the nanocomposite material is as follows: 4 parts by weight of silicon dioxide, 0.5 parts by weight of carbon black, 1 part by weight of sorbitol and 2 parts by weight of trehalose are mixed, and ground to a particle size of 20 nm to obtain the nanocomposite material;

[0054] The crosslinking agent is a mixture of ethoxylated trimethylolpropane triacrylate and dicumyl peroxide at a mass ratio of 0.5:1;

[0055] The coupling agent is a mixture of polydimethylsiloxane and vinyltrimethoxysilane ...

[0063] A highly flexible flame-retardant halogen-free cable material, which consists of the following raw materials in parts by weight:

[0064] 100 parts of EPDM rubber, 1.5 parts of anti-aging agent, 50 parts of halogen-free flame retardant, 0.75 parts of antioxidant, 6 parts of nanocomposite materials, 6.5 parts of paraffin oil, 1.5 parts of crosslinking agent and 0.75 parts of coupling agent;

[0065] in,

[0066] The Mooney viscosity range of the EPDM rubber is 42;

[0067] The preparation method of the nanocomposite material is as follows: mix 6 parts by weight of silicon dioxide, 0.6 parts by weight of carbon black, 1.8 parts by weight of sorbitol and 2.4 parts by weight of trehalose, and grind until the particle size is 28nm, to obtain the nanocomposite material;

[0068] The crosslinking agent is a mixture of ethoxylated trimethylolpropane triacrylate and dicumyl peroxide at a mass ratio of 0.5:1;

[0069] The coupling agent is a mixture of polydimethylsiloxane and ...