PVC (polyvinyl chloride) electrical conduit with low smoke and high flame retardancy

An electrical bushing, high flame retardant technology, applied in the field of low smoke and high flame retardant PVC electrical bushing, can solve the problems of insufficient environmental protection, insufficient flame retardant performance, etc., achieve high oxygen index, reduce surface temperature, and improve smoke suppression effect Effect

Active Publication Date: 2018-05-04
浙江高峰控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention provides low-smoke and high-flame-retardancy PVC electrical bushings for the disadvantages of insufficient flame-retardant performance and insufficient environmental protection in the prior art.

Method used

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  • PVC (polyvinyl chloride) electrical conduit with low smoke and high flame retardancy
  • PVC (polyvinyl chloride) electrical conduit with low smoke and high flame retardancy
  • PVC (polyvinyl chloride) electrical conduit with low smoke and high flame retardancy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Low-smoke and high-flame-retardant PVC electrical bushing consists of the following components by weight:

[0053]

[0054]

[0055] Wherein, the flame retardant is a combination of zinc borate, zinc stannate, ammonium octamolybdate, nanoclay, melamine phosphate and ammonium polyphosphate.

[0056] The parts by weight of each component of the flame retardant are: 4.5 parts of zinc borate, 2.5 parts of zinc stannate, 2.5 parts of ammonium octamolybdate, 1.5 parts of nanoclay, 2 parts of melamine phosphate and 2 parts of ammonium polyphosphate.

[0057]The stabilizer is a calcium-zinc composite stabilized lubricant, and the calcium-zinc composite stabilized lubricant includes a calcium-zinc composite stabilizer and a lubricant.

[0058] The inorganic filler is magnesium hydroxide and aluminum hydroxide, and the weight ratio of magnesium hydroxide and aluminum hydroxide is 1:10.

[0059] Processing aids include epoxidized soybean oil and dioctyl terephthalate (DOTP)...

Embodiment 2

[0063] Low-smoke and high-flame-retardant PVC electrical bushing consists of the following components by weight:

[0064]

[0065]

[0066] Wherein, the flame retardant is a combination of zinc borate, zinc stannate, ammonium octamolybdate, nanoclay, melamine phosphate and ammonium polyphosphate.

[0067] The parts by weight of each component of the flame retardant are: 6 parts of zinc borate, 3 parts of zinc stannate, 3 parts of ammonium octamolybdate, 2 parts of nanoclay, 3 parts of melamine phosphate and 3 parts of ammonium polyphosphate.

[0068] The stabilizer is a calcium-zinc composite stabilized lubricant, and the calcium-zinc composite stabilized lubricant includes a calcium-zinc composite stabilizer and a lubricant.

[0069] The inorganic filler is magnesium hydroxide and aluminum hydroxide, and the weight ratio of magnesium hydroxide and aluminum hydroxide is 10:1.

[0070] Processing aids include epoxidized soybean oil and dioctyl terephthalate (DOTP). The w...

Embodiment 3

[0074] Low-smoke and high-flame-retardant PVC electrical bushing consists of the following components by weight:

[0075]

[0076]

[0077] Wherein, the flame retardant is a combination of zinc borate, zinc stannate, ammonium octamolybdate, nanoclay, melamine phosphate and ammonium polyphosphate.

[0078] The parts by weight of each component of the flame retardant are: 3 parts of zinc borate, 1.5 parts of zinc stannate, 2 parts of ammonium octamolybdate, 1 part of nanoclay, 1.5 parts of melamine phosphate and 1 part of ammonium polyphosphate.

[0079] The stabilizer is a calcium-zinc composite stabilized lubricant, and the calcium-zinc composite stabilized lubricant includes a calcium-zinc composite stabilizer and a lubricant.

[0080] The inorganic filler is magnesium hydroxide and aluminum hydroxide, and the weight ratio of magnesium hydroxide and aluminum hydroxide is 5:1.

[0081] Processing aids include epoxidized soybean oil and dioctyl terephthalate (DOTP). The ...

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Abstract

The invention relates to the field of electrical conduits and discloses a PVC (polyvinyl chloride) electrical conduit with low smoke and high flame retardancy. The PVC electrical conduit is prepared from the following components in parts by weight: 90-110 parts of PVC resin, 3-5 parts of chlorinated polyethylene, 3-5 parts of a stabilizer, 10-20 parts of filler, 6-8 parts of calcium carbonate whiskers, 6-8 parts of calcium sulfate whiskers, 10-20 parts of a flame retardant and 4-6 parts of a processing aid, wherein the flame retardant is composition containing 3-6 parts of zinc borate, 1.5-3 parts of zinc stannate, 2-3 parts of ammonium octamolybdate, 1-2 parts of nano-clay, 1.5-3 parts of melamine phosphate and 1-3 parts of ammonium polyphosphate. The PVC electrical conduit with low smokeand high flame retardancy has the advantages of good environment-friendliness, excellent flame retardancy, proper smoke amount, good tensile strength and tensile rate, high oxygen index, good low-temperature impact performance and the like.

Description

technical field [0001] The invention relates to the field of electrical bushings, in particular to a PVC electrical bushing with low smoke and high flame retardancy. Background technique [0002] Polyvinyl chloride (PVC) plastic has excellent mechanical properties, and can be well combined with ordinary fillers. The temperature resistance can reach 105°C, and the oxygen index of pure PVC can reach 41%. PVC also has excellent electrical insulation properties, so it has a great advantage in the wire and cable industry, especially low-voltage wire and cable. [0003] With the enhancement of human environmental awareness and people's concern for their own health, environmental issues have become the focus of human society. Many countries, regions and organizations have formulated strict standards and regulations to limit the use of harmful substances, especially RolS and REACH regulations. However, ordinary PVC cable materials contain harmful substances such as heavy metal ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08K13/02C08K3/38C08K3/24C08K3/28C08K3/34C08K3/32C08K5/52C08K5/098
CPCC08K2003/323C08K2003/387C08K2201/011C08L27/06C08L2201/02C08L2203/18C08L23/286C08K13/02C08K3/38C08K3/24C08K3/28C08K3/346C08K3/32C08K5/5205C08K5/098
Inventor 金晓松潘刚严春强方林黄英巧
Owner 浙江高峰控股集团有限公司
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