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Preparation method of soft polyvinyl chloride wire and cable material

A wire and cable material, polyvinyl chloride technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of increasing the risk and trouble of plasticizer precipitation, achieve low plasticizer content, soft hand feeling, The effect of prolonging the service life

Inactive Publication Date: 2015-10-07
中山市泰宇塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinyl chloride can produce both hard PVC wire and cable and soft PVC wire and cable by adjusting the content of plasticizer, but increasing the plasticizer content will increase the risk of plasticizer precipitation. In order to reduce this potential risk, the amount of plasticizer must be controlled. However, the problem of how to find a reasonable balance between the amount of plasticizer added and the flexibility of wire and cable materials has long puzzled the industry, and expectations resolve as soon as possible

Method used

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  • Preparation method of soft polyvinyl chloride wire and cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First put 66 parts of polyvinyl chloride resin with a degree of polymerization of 800, 20 parts of dioctyl phthalate and 6 parts of dynamically vulcanized chlorinated polyethylene into a high-speed mixer, which are weighed in parts by weight. The rotation speed is 650r / min and mixed for 5min to obtain the premix, then 5 parts of copolymers of ethylene and acetic acid with a vinyl acetate content of 28%, 15 parts of heavy calcium carbonate, calcium and The compound mixture containing zinc is 1.6 parts of the mixture of calcium stearate and zinc stearate (the weight ratio of calcium stearate to zinc stearate is 7:3) and the melting point is 60 ℃ and it is produced by suspension method 0.4 parts of stearic acid produced are put into the premixed material, and mixed for 6 minutes at a speed of 700r / min in the high-speed mixer, wherein the heating temperature of the high-speed mixer is 108-112°C to obtain the mixed material, and then the The mixed material is put into a para...

Embodiment 2

[0016] First put 60 parts of polyvinyl chloride resin with a polymerization degree of 800, 15 parts of dioctyl phthalate and 8 parts of dynamically vulcanized chlorinated polyethylene into a high-speed mixer that are weighed in parts by weight. The rotation speed is 650r / min and mixed for 5min to obtain the premix, then the vinyl acetate content taken by weight is 6 parts of ethylene and acetic acid copolymer, 10 parts of heavy calcium carbonate, calcium and The compound mixture containing zinc is 1.8 parts of the mixture of calcium stearate and zinc stearate (the weight ratio of calcium stearate to zinc stearate is 7:3) and the melting point is 60 ℃ and it is produced by suspension method 0.2 parts of stearic acid produced are put into the premixed material, and mixed for 6 minutes at a speed of 700r / min in the high-speed mixer, wherein the heating temperature of the high-speed mixer is 108-112°C to obtain the mixed material, and then the The mixed material is put into a para...

Embodiment 3

[0018] First put 64 parts of polyvinyl chloride resin, 24 parts of dioctyl phthalate, and 10 parts of dynamically vulcanized chlorinated polyethylene into a high-speed mixer with a degree of polymerization of 800, which are weighed in parts by weight. The rotation speed is 650r / min and mixed for 5min to obtain the premix, and then the vinyl acetate content taken by weight is 9 parts of ethylene and acetic acid copolymer, 14 parts of heavy calcium carbonate, calcium and The compound mixture containing zinc is 1.2 parts of the mixture of calcium stearate and zinc stearate (the weight ratio of calcium stearate to zinc stearate is 7:3) and the melting point is 60 ℃ and it is produced by suspension method 0.3 parts of stearic acid produced are put into the premixed material, and mixed for 6 minutes at a speed of 700r / min in the high-speed mixer, wherein the heating temperature of the high-speed mixer is 108-112° C. The mixed material is put into a parallel twin-screw extruder to be...

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Abstract

The invention relates to a preparation method of a soft polyvinyl chloride electric wire / cable material and belongs to the technical field of preparation of polymer composite materials. The preparation method of the soft polyvinyl chloride electric wire / cable material comprises the following steps of: adding 60-66 parts of polyvinyl chloride resin, 15-24 parts of plasticizer and 6-10 parts of vinyl chloride elastic material into a high-speed mixer, mixing in the high-speed mixer to obtain premix; then adding 5-9 parts of vinyl acetate copolymer, 10-15 parts of calcium carbonate, 1.2-1.8 parts of calcium-zinc stabilizer and 0.2-0.4 part of stearic acid into the premix, mixing for 6 minutes under the conditions that the rotating speed of the high-speed mixer is 700r / min and temperature of the high-speed mixer is increased to 108-112 DEG C, so as to obtain mixture; then melting and extruding the mixture in a parallel double-screw extruder, and carrying out water cooling, pelletizing and drying, thus obtaining the soft polyvinyl chloride electric wire / cable material. The preparation method of the soft polyvinyl chloride electric wire / cable material has the advantages that content of plasticizer is low and electric wire / cable products have soft handfeel, and service life of the electric wire / cable products can be obviously prolonged.

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 soft polyvinyl chloride wire and cable material. Background technique [0002] Polyvinyl chloride is a general-purpose plastic, which has the advantages of low cost, convenient processing, excellent mechanical properties, corrosion resistance and excellent insulation, and is widely used in construction, light industry, chemical industry, electrical appliances, wire and cable and other fields. Polyvinyl chloride can produce both hard PVC wire and cable and soft PVC wire and cable by adjusting the content of plasticizer, but increasing the plasticizer content will increase the risk of plasticizer precipitation. In order to reduce this potential risk, the amount of plasticizer must be controlled. However, the problem of how to find a reasonable balance between the amount of plasticizer added and the flexibility of wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/28C08L23/08C08K13/02C08K5/12C08K3/26C08K5/098H01B3/44
Inventor 黄多能
Owner 中山市泰宇塑胶制品有限公司
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