Oil-resistant, high-temperature-resistant and flame-retardant thermoplastic elastomer cable material and preparation method thereof

Abstract

The invention relates to an oil-resistant, high-temperature-resistant and flame-retardant thermoplastic elastomer cable material and a preparation method thereof and belongs to the technical field of electric wires and cables and preparation thereof. The cable material is prepared from the following raw materials in parts by weight: 20-35 parts of a thermoplastic elastomer, 5-15 parts of an oil-resistant modifier, 5-10 parts of polypropylene, 1-5 parts of a compatilizer, 2-6 parts of extending oil, 15-25 parts of a flame retardant, 0.2-0.6 part of a lubricant and 0.4-0.8 part of an antioxidant. As raw materials are reasonably selected and proportioned, the mechanical property change rate of the material soaked in 902# oil for 168 hours at 60 DEG C is within 25%, the high-temperature-resistant deformation is 26-30% at 150 DEG C, and the flame-retardant performance reaches VO level, so that the stringent requirements of UL62 on the TPE material are fully satisfied. The preparation method provide is short in technical process, and the extruding temperature is within 100-200 DEG C. Compared with the prior art, the extruding temperature is remarkably reduced and an energy-saving effect is reflected.

Description

technical field

[0001] The invention belongs to the technical field of wire and cable materials and their preparation, and in particular relates to an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, and also relates to a preparation method thereof. Background technique

[0002] While the market demand for wires and cables continues to grow, the physical and chemical (physical and chemical) properties of wires and cables are also becoming increasingly stringent, thus accelerating the research and development process of wire and cable materials, and new materials for wires and cables with excellent technical effects are continuously introduced. For example, thermoplastic elastomers have both the processability of plastics and the high elasticity of rubber and can be recycled and recycled, so they have generally been recognized and valued by the industry as a latecomer.

[0003] At present, the thermoplastic elastomers used in the field ...

Examples

Embodiment 1

[0022]First, 20 parts of a mixture of 10% SEBS by mass percentage and 90% TPV by mass percentage and 2 parts of naphthenic oil as an extender oil that were weighed in parts by weight were put into a high-speed mixer and heated at room temperature Stir at low speed for 10 minutes, then add 15 parts of ethylene-vinyl acetate copolymer (EVA), 8 parts of single block copolymerized polypropylene, and compatibilizer to the high-speed mixer. That is, 1 part of EVA grafted by maleic anhydride, a mixture of 9 parts of decabromodiphenylethane and antimony trioxide as a flame retardant, 0.2 parts of liquid paraffin as a lubricant, and 10100.4 parts of an antioxidant , and continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, melt and extrude it through a twin-screw extruder, cool and pelletize, and obtain an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, wherein: The temperature of zone 1 to zone 9...

Embodiment 2

[0024] First, 35 parts of a mixture of 60% SEBS and 40% TPV and 6 parts of paraffin oil as filler oil are put into a high-speed mixer and weighed in parts by weight. Stir at low speed for 5 minutes at room temperature, then add 10 parts of chlorinated polyethylene (CPE), 5 parts of homopolypropylene, and compatibilizer by weight to the high-speed mixer. 3 parts of SEBS grafted with anhydride, 25 parts of a mixture of magnesium hydroxide and zinc borate in any weight ratio as a flame retardant, 0.6 parts of high-viscosity silicone oil as a lubricant and 1680.8 parts of an antioxidant as an antioxidant, and Continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, melt and extrude through a twin-screw extruder, cool and pelletize, and obtain an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, wherein: the aforementioned double The temperature of zone 1 to zone 9 and the head of the screw extrude...

Embodiment 3

[0026] First, 27 parts of a mixture of 35% SEBS and 65% TPV and 4 parts of DOTP as filler oil weighed in parts by weight were put into a high-speed mixer and cooled at room temperature at a low speed. Stir for 8 minutes, and then add 5 parts of oil-resistant modifiers weighed in parts by weight, that is, acrylate terpolymers (Sunigum P95, ie, acrylate elastic modifiers), and a single block copolymerization type to the high-speed mixer. Mixture of 5 parts of polypropylene and 5 parts of homopolymerized polypropylene, 5 parts of ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) as a compatibilizer, and 5 parts of flame retardant as aluminum phenyl hypophosphite 15 parts, lubricant is polyethylene wax or 0.4 part of polyethylene glycol ester and antioxidant is 10240.6 parts of antioxidant, and continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, and pass through a twin-screw The extruder is melted and extruded, cooled and p...

technical field

[0001] The invention belongs to the technical field of wire and cable materials and their preparation, and in particular relates to an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, and also relates to a preparation method thereof. Background technique

[0002] While the market demand for wires and cables continues to grow, the physical and chemical (physical and chemical) properties of wires and cables are also becoming increasingly stringent, thus accelerating the research and development process of wire and cable materials, and new materials for wires and cables with excellent technical effects are continuously introduced. For example, thermoplastic elastomers have both the processability of plastics and the high elasticity of rubber and can be recycled and recycled, so they have generally been recognized and valued by the industry as a latecomer.

[0003] At present, the thermoplastic elastomers used in the field ...

Examples

Embodiment 1

[0022]First, 20 parts of a mixture of 10% SEBS by mass percentage and 90% TPV by mass percentage and 2 parts of naphthenic oil as an extender oil that were weighed in parts by weight were put into a high-speed mixer and heated at room temperature Stir at low speed for 10 minutes, then add 15 parts of ethylene-vinyl acetate copolymer (EVA), 8 parts of single block copolymerized polypropylene, and compatibilizer to the high-speed mixer. That is, 1 part of EVA grafted by maleic anhydride, a mixture of 9 parts of decabromodiphenylethane and antimony trioxide as a flame retardant, 0.2 parts of liquid paraffin as a lubricant, and 10100.4 parts of an antioxidant , and continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, melt and extrude it through a twin-screw extruder, cool and pelletize, and obtain an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, wherein: The temperature of zone 1 to zone 9...

Embodiment 2

[0024] First, 35 parts of a mixture of 60% SEBS and 40% TPV and 6 parts of paraffin oil as filler oil are put into a high-speed mixer and weighed in parts by weight. Stir at low speed for 5 minutes at room temperature, then add 10 parts of chlorinated polyethylene (CPE), 5 parts of homopolypropylene, and compatibilizer by weight to the high-speed mixer. 3 parts of SEBS grafted with anhydride, 25 parts of a mixture of magnesium hydroxide and zinc borate in any weight ratio as a flame retardant, 0.6 parts of high-viscosity silicone oil as a lubricant and 1680.8 parts of an antioxidant as an antioxidant, and Continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, melt and extrude through a twin-screw extruder, cool and pelletize, and obtain an oil-resistant, high-temperature, flame-retardant thermoplastic elastomer cable material, wherein: the aforementioned double The temperature of zone 1 to zone 9 and the head of the screw extrude...

Embodiment 3

[0026] First, 27 parts of a mixture of 35% SEBS and 65% TPV and 4 parts of DOTP as filler oil weighed in parts by weight were put into a high-speed mixer and cooled at room temperature at a low speed. Stir for 8 minutes, and then add 5 parts of oil-resistant modifiers weighed in parts by weight, that is, acrylate terpolymers (Sunigum P95, ie, acrylate elastic modifiers), and a single block copolymerization type to the high-speed mixer. Mixture of 5 parts of polypropylene and 5 parts of homopolymerized polypropylene, 5 parts of ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) as a compatibilizer, and 5 parts of flame retardant as aluminum phenyl hypophosphite 15 parts, lubricant is polyethylene wax or 0.4 part of polyethylene glycol ester and antioxidant is 10240.6 parts of antioxidant, and continue to stir evenly to obtain a mixture, then introduce the mixture into a conical feeding hopper, and pass through a twin-screw The extruder is melted and extruded, cooled and p...

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