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Cold-resistant oilproof flame-retardant PVC (Polyvinyl Chloride) cable material and preparation method thereof

A flame-retardant polyvinyl chloride and cable material technology, which is applied in the direction of insulating cables, cables, circuits, etc., can solve the problems that the small molecules of plasticizers cannot be inserted, the application of cable materials is limited, and the cold resistance of plasticizers is not enough. Achieve excellent durability and thermal stability, chemical resistance without migration, improve cold resistance and migration resistance

Inactive Publication Date: 2013-07-17
JIANGSU LINRY NEW MSTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for this type of cable material to pass the -40°C low-temperature impact test required in cables or optical cables and the mineral oil immersion test in GB / T2951.21-2008, which limits the application of this type of traditional cable material.
The traditional PVC cable material is made of PVC resin powder and DOP and DOS type plasticizers. Due to the insufficient cold resistance of the plasticizer, and it is easy to separate from the main resin, migration and precipitation occur, and the small molecules of the plasticizer It cannot be inserted into the molecular chain of PVC resin, and the addition of flame retardants makes traditional PVC cable materials crack at low ambient temperatures. At the same time, oily small molecules can easily penetrate into PVC in situations where oil resistance is required. Inside the resin, the performance of the material deteriorates, failing to meet the requirements of oil resistance
Moreover, this type of cable material cannot pass the requirements of ROHS, REACH, and PAHs, which limits the application of the material again.

Method used

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  • Cold-resistant oilproof flame-retardant PVC (Polyvinyl Chloride) cable material and preparation method thereof
  • Cold-resistant oilproof flame-retardant PVC (Polyvinyl Chloride) cable material and preparation method thereof
  • Cold-resistant oilproof flame-retardant PVC (Polyvinyl Chloride) cable material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment is a kind of cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material:

[0020] (1) Raw material formula:

[0021] As shown in the following table:

[0022]

[0023] (2) Preparation process:

[0024] Stir PVC resin powder, plasticizer, nitrile rubber powder, stabilizer, epoxy soybean oil, flame retardant, Elvaloy, antioxidant and lubricant in a high-speed mixer first, and then mix them at a temperature of 120°C In the lower section, it is internally mixed with an internal mixer, extruded by a twin-screw, ground and granulated, fed by a cyclone separator, screened by a vibrating sieve and then packaged to form a finished product of cold-resistant, oil-resistant, and flame-retardant PVC cable material.

[0025] (3) Material properties:

[0026] The cold-resistant, oil-resistant and flame-retardant PVC cable material prepared according to the above formula and process has the following properties: tensile strength 17MPa, elo...

Embodiment 2

[0028] This embodiment is a kind of cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material:

[0029] (1) Raw material formula:

[0030] As shown in the following table:

[0031]

[0032] (2) Preparation process:

[0033] Stir PVC resin powder, plasticizer, nitrile rubber powder, stabilizer, epoxy soybean oil, flame retardant, Elvaloy, antioxidant and lubricant in a high-speed mixer, and then mix them at a temperature of 130°C In the lower section, it is internally mixed with an internal mixer, extruded by a twin-screw, ground and granulated, fed by a cyclone separator, screened by a vibrating sieve and then packaged to form a finished product of cold-resistant, oil-resistant, and flame-retardant PVC cable material.

[0034] (3) Material properties:

[0035] The cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material prepared according to the above formula and process has the following properties: tensile strength 1...

Embodiment 3

[0037] This embodiment is a kind of cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material:

[0038] (1) Raw material formula:

[0039] As shown in the following table:

[0040]

[0041] (2) Preparation process:

[0042] Stir PVC resin powder, plasticizer, nitrile rubber powder, stabilizer, epoxy soybean oil, flame retardant, Elvaloy, antioxidant and lubricant in a high-speed mixer, and then mix them at a temperature of 140°C In the lower section, it is internally mixed with an internal mixer, extruded by a twin-screw, ground and granulated, fed by a cyclone separator, screened by a vibrating sieve and then packaged to form a finished product of cold-resistant, oil-resistant, and flame-retardant PVC cable material.

[0043] (3) Material properties: The cold-resistant, oil-resistant and flame-retardant PVC cable material prepared according to the above formula and process has the following properties: tensile strength 18MPa, elongation at break...

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Abstract

The invention relates to a cable material, and in particular relates to a cold-resistant oilproof flame-retardant PVC (Polyvinyl Chloride) cable material and a preparation method thereof. The polyvinyl chloride cable material comprises the following components: PVC resin powder, a plasticizer, nitrile butadiene rubber powder, a stabilizer, epoxidized soybean oil, a fire retardant, Elvaloy, an antioxidant and a lubricant. The preparation method comprises the following steps of: evenly stirring the PVC resin powder, the plasticizer, the nitrile butadiene rubber powder, the stabilizer, the epoxidized soybean oil, the fire retardant, the Elvaloy, the antioxidant and the lubricant in a high-speed mixer; performing banburying in a banbury mixer at the temperature between 120 and 140 DEG C; extruding by using double screw rods; granulating by grinding and hot-cutting; conveying materials by using a cyclone separator; and screening by using a vibrating screen and packaging, thereby obtaining the finished cold-resistant oilproof flame-retardant PVC cable material product. Compared with the common flame-retardant PVC cable material, the polyolefin cable material provided by the invention has the effects that the cold-resistant performance is improved; the oilproof performance of the product is improved greatly; and the problem that the cold-resistant PVC cable material plasticizer is easy to separate out is solved.

Description

technical field [0001] The invention relates to a cable material, in particular to a cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material and a preparation method thereof. Background technique [0002] Most of the traditional flame-retardant PVC cable materials use PVC resin powder as the main resin base material, use DOP and DOS as plasticizers, and add a certain amount of aluminum hydroxide to make flame-retardant PVC cable materials. However, it is difficult for this type of cable material to pass the -40°C low-temperature impact test required in cables or optical cables and the mineral oil immersion test in GB / T2951.21-2008, which limits the application of this type of traditional cable material. . The traditional PVC cable material is made of PVC resin powder and DOP and DOS type plasticizers. Due to the insufficient cold resistance of the plasticizer, and it is easy to separate from the main resin, migration and precipitation occur, and ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L9/02C08K13/06C08K5/1515C08K5/12C08K3/22H01B7/295
Inventor 郭振勤李得志
Owner JIANGSU LINRY NEW MSTAR TECH
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