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Cold-resistant flame-retardant PVC cable material

A cable material and PVC resin technology, applied in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of lowering the softening point of the product, lowering the cold resistance, increasing the formula cost, etc., to achieve reasonable formula cost control and excellent cold resistance. , the effect of excellent flame retardant performance

Active Publication Date: 2014-10-01
JIANGSU HENGTONG WIRE & CABLE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main method is to add cold-resistant plasticizers such as dioctyl sebacate and dioctyl adipate (such plasticizers have poor compatibility with resins, are easy to precipitate, and have more impact on flame retardancy than ordinary plasticizers. More serious) to improve the cold resistance of the product, adding antimony trioxide, zinc borate and other flame retardants to improve the flame retardant performance of the product (the greater the amount of flame retardant added, the worse the low impact performance)
However, the softening point of the product is lowered by adding a large amount of plasticizer. The larger the amount added, the easier it is for the plasticizer to precipitate from the resin, which makes the product's flame retardancy worse.
In order to achieve the ideal flame retardant effect of cold-resistant cable materials, a large amount of composite flame retardants must be added, and the increase of composite flame retardants will reduce the cold resistance of the product, thus forming a vicious circle and increasing the formulation cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The formula of the cold-resistant and flame-retardant PVC cable material described in the present embodiment is as follows: PVC resin (S-1000) containing 100 parts by weight, DOP of 35 parts by weight, DOTP of 10 parts by weight, epoxy soybean oil of 4 parts by weight, The vinyl acetate of 8 weight parts, the calcium carbonate (2500 order) of 30 weight parts, the antimony trioxide (purity is more than 98%) of 5 weight parts, the polyethylene wax of 0.2 weight part, the stearic acid of 0.2 weight part, The calcium-zinc composite stabilizer (CZ-3) of 3 weight parts.

[0019] The preparation process is as follows: Stir each component in the formula evenly in a high-speed mixer, then banbury in a banbury mixer at a temperature range of 120°C, then process through twin-screw extrusion, and then granulate through single-screw extrusion. The material is fed by a cyclone separator, screened by a vibrating screen and then packaged to become a cold-resistant and flame-retardant P...

Embodiment 2

[0021] The formula of the cold-resistant and flame-retardant PVC cable material described in the present embodiment is as follows: PVC resin (S-1000) containing 100 parts by weight, DOP of 40 parts by weight, DOTP of 8 parts by weight, epoxy soybean oil of 4 parts by weight, The vinyl acetate of 25 parts by weight, the calcium carbonate (2500 order) of 50 parts by weight, the antimony trioxide (purity is more than 98%) of 5 parts by weight, the polyethylene wax of 0.2 parts by weight, the stearic acid of 0.2 parts by weight, The calcium-zinc composite stabilizer (CZ-3) of 3 weight parts.

[0022] The preparation process is as follows: Stir each component in the formula evenly in a high-speed mixer, then banbury in a banbury mixer at a temperature range of 120°C, then process through twin-screw extrusion, and then granulate through single-screw extrusion. The material is fed by a cyclone separator, screened by a vibrating screen and then packaged to become a cold-resistant and ...

Embodiment 3

[0024] The formula of the cold-resistant and flame-retardant PVC cable material described in the present embodiment is as follows: PVC resin (S-1000) containing 100 parts by weight, DOP of 33 parts by weight, DOTP of 12 parts by weight, epoxy soybean oil of 4 parts by weight, The vinyl acetate of 5 weight parts, the calcium carbonate (2500 order) of 30 weight parts, the antimony trioxide (purity is more than 98%) of 5 weight parts, the polyethylene wax of 0.2 weight part, the stearic acid of 0.2 weight part, The calcium-zinc composite stabilizer (CZ-3) of 3 weight parts.

[0025] The preparation process is as follows: Stir each component in the formula evenly in a high-speed mixer, then banbury in a banbury mixer at a temperature range of 120°C, then process through twin-screw extrusion, and then granulate through single-screw extrusion. The material is fed by a cyclone separator, screened by a vibrating screen and then packaged to become a cold-resistant and flame-retardant P...

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Abstract

The invention relates to a cold-resistant flame-retardant PVC cable material containing the following components in parts by weight: 100 parts of PVC resin, 33-40 parts of DOP, 12-8 parts of DOTP, 3-5 parts of epoxidized soybean oil, 1-30 parts of vinyl acetate, 30-50 parts of inorganic filler, 4-6 parts of antimony trioxide, 0.1-0.2 part of polyethylene wax, 0.1-0.2 part of stearic acid and 2-5 parts of calcium and zinc composite stabilizer. The cold-resistant flame-retardant PVC cable material provided by the invention has more excellent flame retardant property, so that a cable is prevented from becoming a fire spreading source in a fire; the cold-resistant flame-retardant PVC cable material is remarkable in cold resistance, so that the cable can bear a colder environment; the parts of the used cold-resistant plasticizer and flame retardant are remarkably reduced, so that the formula cost is controlled more reasonably.

Description

technical field [0001] The invention relates to the technical field of cable materials, more specifically, the invention relates to a cold-resistant and flame-retardant PVC cable material. Background technique [0002] As the society pays more and more attention to fire hazards, the fire resistance of cables is also required to be higher. Some special flexible cables (such as elevator cables, telecommunication device cables, etc.) also require certain flame retardant performance, so it is necessary to develop PVC cold resistance fuel cable. In the prior art, PVC cold-resistant and flame-retardant cable materials are based on PVC resin, adding plasticizers (to reduce the processing temperature of the resin and reduce the softening point of the product), flame retardants (to improve the flame-retardant performance of the product), stabilizers ( Improve the heat resistance of the product, delay the degradation of PVC), lubricant (to improve the processing performance of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/06C08K9/04C08K9/06C08K5/12C08K5/1515C08K5/101C08K3/22C08K5/09C08K3/26C08K3/34C08K5/098H01B3/44
Inventor 于德宝程晓松郑晓龙孙玉萍王传威
Owner JIANGSU HENGTONG WIRE & CABLE TECH
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