Heat-resisting power protection tube

A technology of power protection and high temperature resistance, applied in the field of high temperature power protection tubes, can solve the problems of insufficient heat resistance and strength, inability to fully recover, sensitivity to strain, etc., to reduce surface energy, increase flexural modulus, improve The effect of toughness

Inactive Publication Date: 2014-10-08
安徽宁国市高新管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to its good electrical insulation, it has been widely used as a power protection tube, but due to the low-temperature brittleness of hard PVC, it is sensitive to heat during processing, has poor thermal stability, and will cause different degradation when heated. Sensitive to strain, unable to fully recover after deformation, etc., the current power protection tubes still have great deficiencies in h

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0032] Example 1

[0033] In the high temperature resistant electric protection tube of the present invention, its raw material composition is as shown in Example 1 in Table 1, wherein it also includes 1 part of coloring agent, the coloring agent is an organic dye, and the organic dye is chrome yellow; The heat-resistant modifier is a terpolymer of N-phenylmaleimide, styrene, acrylonitrile; the flame retardant is ZnSiO 3 with Mg(OH) 2 composition, and ZnSiO 3 : Mg(OH) 2 The ratio is 1:3; the synergistic stabilizer is a calcium-zinc composite stabilizer;

[0034] The lanthanum ricinoleate is prepared according to the following process: 0.025mol lanthanum nitrate, 0.05mol sodium hydroxide and 0.1mol ricinoleic acid are dissolved in 500ml absolute ethanol respectively to form solution A, solution B and solution C respectively; Add 80ml of solution A and 20ml of solution C to the three-necked flask in turn, stir and heat to 60°C, then keep stirring for 2 hours to form solution...

Example Embodiment

[0041] Example 2

[0042] In the high temperature resistant power protection tube of the present invention, its raw material composition is as shown in Example 2 in Table 1, wherein it also includes 5 parts of colorant, and the colorant is an inorganic dye; the heat-resistant modifier is Terpolymer of N-phenylmaleimide, styrene, acrylonitrile; the flame retardant is ZnSiO 3 with Mg(OH) 2 composition, and ZnSiO 3 : Mg(OH) 2 It is 1:10; The synergistic stabilizer is pentaerythritol and zinc stearate;

[0043] The lanthanum ricinoleate is prepared according to the following process: 0.015mol lanthanum nitrate is dissolved in 100ml anhydrous methanol to form solution A, 0.03mol sodium hydroxide is dissolved in 200ml anhydrous methanol to form solution B, 0.1mol castor Dissolve sesoleic acid in 250ml of anhydrous methanol to form solution C; add 40ml of solution A and 15ml of solution C in turn to a three-neck flask, stir and heat to 80°C, keep stirring for 3 hours to form solu...

Example Embodiment

[0050] Example 3

[0051] The high-temperature-resistant electric power protection tube of the present invention has a raw material composition as shown in Example 3 in Table 1, wherein it also includes 3 parts of a colorant, the colorant is an organic dye, and the organic dye is titanium blue; The heat-resistant modifier is a terpolymer of N-phenylmaleimide, styrene, acrylonitrile; the flame retardant is ZnSiO 3 with Mg(OH) 2 composition, and ZnSiO 3 : Mg(OH) 2 The ratio is 1:6; the synergistic stabilizer is pentaerythritol, calcium stearate and calcium-zinc composite stabilizer;

[0052] The lanthanum ricinoleate is prepared according to the following process: 0.01mol lanthanum nitrate is dissolved in 100ml of anhydrous ethylene glycol to form solution A, 0.02mol of sodium hydroxide is dissolved in 200ml of anhydrous ethylene glycol to form solution B, Dissolve 0.03mol of ricinoleic acid in 100ml of anhydrous ethylene glycol to form solution C; add 60ml of solution A and...

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PUM

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Abstract

The invention discloses a heat-resisting power protection tube, comprising the following raw materials in parts by weight: 100-150 parts of polyvinyl chloride, 50-100 parts of chlorinated polyvinyl chloride, 5-15 parts of glass beads, 10-25 parts of acrylate rubber, 2-6 parts of ricinoleic acid lanthanum, 1-5 parts of protocatechuic acid lanthanum, 2-5 parts of a collaborative stabilizer, 20-30 parts of a heat-resisting modifier, 0.5-1.5 parts of polyethylene wax, 5-30 parts of modified feldspar, 10-20 parts of a composite toughening modifier and 20-60 parts of a fire retardant. The heat-resisting power protection tube disclosed by the invention has excellent high-temperature resistance and also has good corrosion resistance, ageing resistance and fire resistance, and high mechanical strength and tenacity, and the service life of the heat-resisting power protection tube is prolonged.

Description

technical field [0001] The invention relates to the technical field of power protection tubes, in particular to a high temperature resistant power protection tube. Background technique [0002] Polyvinyl chloride (PVC) is a thermoplastic high polymer produced by polymerization of vinyl chloride monomer. Because of its excellent flame retardancy, abrasion resistance, chemical corrosion resistance, comprehensive mechanical and physical properties, product transparency, It is widely used in chemical industry, materials, electric power and other fields because of its electrical insulation and other properties. At present, due to its good electrical insulation, it has been widely used as a power protection tube, but due to the low-temperature brittleness of hard PVC, it is sensitive to heat during processing, has poor thermal stability, and will cause different degradation when heated. Sensitive to strain, unable to fully recover after deformation, etc., the current power protec...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L27/24C08L33/08C08L35/06C08K13/06C08K7/20C08K5/098C08K3/34C08K9/10C08K3/26C08K3/22C08K5/053
Inventor 金立胜
Owner 安徽宁国市高新管业有限公司
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