Preparation method of polyvinyl chloride cable material

A polyvinyl chloride cable and polyvinyl chloride resin technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the few problems of high service temperature grade and low temperature resistance grade, and achieve high strength, The effect of excellent electrical properties

Inactive Publication Date: 2014-03-19
CHANGSHU LANTIAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By adjusting the content of plasticizer, polyvinyl chloride cables can be made into wire and cable sheaths (also known as outer sheaths) and core wire materials with different hardness, but there are active (live) chlorine atoms in the polyvinyl chloride molecular chain, in There is a tendency of dehydrochlorination in the natural state, and this tendency is more obvious in a heated or high-temperature environment. Therefore, PVC materials are generally used in

Method used

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  • Preparation method of polyvinyl chloride cable material

Examples

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Example Embodiment

[0015] Example 1:

[0016] First, 35 parts of polyvinyl chloride resin with a polymerization degree of 1300, 10 parts of dioctyl terephthalate with an ester content greater than 99.5%, 3 parts of metallocene low-density polyethylene and epoxy value Put 0.7 parts of epoxidized soybean oil greater than 6.6% into a high-speed mixer, mix at a speed of 300rpm for 5 minutes, and then put in ultrafine powder of 6000 mesh or more weighed by weight when the temperature of the high-speed mixer rises to 60°C. 7 parts of calcium carbonate powder, 1 part of calcium-zinc composite stabilizer compounded (that is, mixed) with calcium stearate and zinc stearate in a weight ratio of 7:3, dispersed in fumed silica and peroxidized The weight ratio of dicumylbenzene to silicon dioxide is 0.1 part of dicumyl peroxide, 0.9 part of antimony trioxide with a purity of more than 99% and 0.08 part of stearic acid with a melting point of 60 ° C, mixed at high speed The speed of the mixer is 600rpm and mi...

Example Embodiment

[0017] Example 2:

[0018] First, 37 parts of polyvinyl chloride resin with a degree of polymerization of 1300, 12 parts of dioctyl terephthalate with an ester content greater than 99.5%, 5 parts of metallocene low-density polyethylene and epoxy value Put 0.8 part of epoxidized soybean oil greater than 6.6% into a high-speed mixer, mix for 5 minutes at a speed of 300 rpm, and then put in ultra-fine powder of 6000 mesh or more weighed by weight when the temperature of the high-speed mixer rises to 60°C. 13 parts of calcium carbonate powder, 0.6 parts of calcium-zinc composite stabilizer compounded (ie mixed) of calcium stearate and zinc stearate in a weight ratio of 7:3, dispersed in fumed silica and peroxidized The weight ratio of dicumylbenzene to silicon dioxide is 0.4 part of dicumyl peroxide, 0.6 part of antimony trioxide with a purity of more than 99% and 0.02 part of stearic acid with a melting point of 60 ° C, mixed at high speed The speed of the mixer is 600rpm and mi...

Example Embodiment

[0019] Example 3:

[0020] First, 30 parts of polyvinyl chloride resin with a degree of polymerization of 1300, 8 parts of dioctyl terephthalate with an ester content greater than 99.5%, 4 parts of metallocene low-density polyethylene and epoxy value Put 0.5 parts of epoxidized soybean oil greater than 6.6% into a high-speed mixer, mix at a speed of 300rpm for 5 minutes, and then put in ultrafine powder of 6000 mesh or more weighed by weight when the temperature of the high-speed mixer rises to 60°C. 9 parts of calcium carbonate powder, 1.3 parts of calcium-zinc composite stabilizer compounded (that is, mixed) with calcium stearate and zinc stearate in a weight ratio of 7:3, dispersed in fumed silica and peroxidized The weight ratio of dicumylbenzene to silicon dioxide is 0.2 parts of dicumyl peroxide, 1.5 parts of antimony trioxide with a purity of more than 99% and 0.1 part of stearic acid with a melting point of 60 °C at a high speed. The speed of the mixer is 600rpm and m...

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Abstract

The invention provides a preparation method of a polyvinyl chloride cable material, and belongs to the field of polymer composite material preparation. The method comprises the following steps: adding 30 to 37 parts of polyvinyl chloride resin, 8 to 12 parts of dioctyl terephthalate, 3 to 5 parts of linear low-density polyethylene, and 0.5 to 1.0 part of epoxy soybean oil into a high-speed mixer, mixing the materials mentioned above for 5 minutes under a speed of 300 rpm, adding 7 to 13 parts of calcium carbonate, 0.6 to 1.2 parts of calcium-zinc stabilizing agent, 0.1 to 0.4 part of dicumyl peroxide, 0.6 to 1.5 parts of antimony trioxide, and 0.02 to 0.1 part of stearic acid into the mixer when the temperature reaches 60 DEG C, mixing for 10 minutes in the high-speed mixer under a speed of 600 rpm, taking out the mixed materials from the high-speed mixer when the temperature reaches 120 DEG C, putting the mixed material into an internal mixer to carry out an internal mixing treatment, taking out the mixture when the temperate reaches 150 DEG C, putting the mixture into a single-screw extruder to carry out an extruding treatment, then carrying out a granulating treatment after the extrusion treatment, drying, and finally packing. The polyvinyl chloride cable material has the advantages of high strength and excellent electrical property, and can sustain a temperature as high as 105 DEG C.

Description

technical field [0001] The invention belongs to the technical field of polymer composite material preparation, and in particular relates to a preparation method of polyvinyl chloride cable material. Background technique [0002] Polyvinyl chloride is a thermoplastic with excellent performance. It is widely used in the wire and cable industry due to its convenient processing, excellent flame retardancy and low price. By adjusting the content of plasticizer, polyvinyl chloride cables can be made into wire and cable sheaths (also known as outer sheaths) and core wire materials with different hardness, but there are active (live) chlorine atoms in the polyvinyl chloride molecular chain, in There is a tendency of dehydrochlorination in the natural state, and this tendency is more obvious in a heated or high-temperature environment. Therefore, PVC materials are generally used in low temperature ranges, such as 70°C, 90°C, etc., rarely There is a higher temperature rating. China ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08K13/02C08K5/12C08K5/1515C08K3/26C08K5/14C08K3/22C08K5/09H01B3/44B29B9/06
Inventor 温良根
Owner CHANGSHU LANTIAN NEW MATERIAL TECH
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