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Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof

A technology of low-temperature shrinkage and heat-shrinkable tubing, which is applied in pipeline protection, mechanical equipment, pipeline anticorrosion/rust protection, etc. It can solve the problems of poor flame retardancy and high heat shrinkage response temperature, and achieves low price, simple method, Good overall performance

Active Publication Date: 2011-06-15
ANHUI ZHONGDING SEALING PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, these heat shrinkable tubes have defects such as high heat shrinkage response temperature and poor flame retardancy.

Method used

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  • Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof
  • Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof
  • Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare according to the following recipe:

[0044] 100 parts of ethylene-vinyl acetate copolymer (EVA);

[0045] 30 parts of ammonium polyphosphate coated with melamine resin;

[0046] 10 parts of red phosphorus coated with phenolic resin;

[0047] 8 parts of zinc borate;

[0048] 30 parts of superfine magnesium hydroxide powders treated with surface activation;

[0049] 2 parts of compatibilizer;

[0050] Main antioxidant pentaerythritol ester (antioxidant 1010) 0.5 part;

[0051] Secondary Antioxidant Dilauryl Thiodipropionate

[0052] 0.5 copies;

[0053] (DLTP)

[0054] Lubricant calcium stearate 1 part;

[0055] Lubricant polyethylene wax 1.5 parts;

[0056] 2 parts of sensitizer triallyl isocyanate (TAIC);

[0057] 5 parts of black masterbatch,

[0058] Wherein, the melt index MI of the ethylene-vinyl acetate copolymer (EVA) is 3.6g / 10min, and the weight percentage of vinyl acetate in the copolymer is 14%, and the partic...

Embodiment 2

[0063] Prepare according to the following recipe:

[0064] 100 parts of ethylene-vinyl acetate copolymer (EVA);

[0065] 35 parts of ammonium polyphosphate coated with melamine resin;

[0066] 8 parts of red phosphorus coated with phenolic resin;

[0067] 8 parts of zinc borate;

[0068] 25 parts of superfine magnesium hydroxide powders treated with surface activation;

[0069] 1.5 parts of compatibilizer;

[0070] Main antioxidant pentaerythritol ester (antioxidant 1010) 0.5 part;

[0071] Secondary Antioxidant Dilauryl Thiodipropionate

[0072] 1 copy;

[0073] (DLTP)

[0074] 1.5 parts of lubricant polyethylene wax 1.5 parts;

[0075] 2 parts of sensitizer triallyl isocyanate (TAIC);

[0076] 4 parts of black masterbatch,

[0077] Wherein, the melt index MI of the ethylene-vinyl acetate copolymer (EVA) is 3.6g / 10min, and the weight percentage of vinyl acetate in the copolymer is 14%, and the particle size of the phenolic resin coa...

Embodiment 3

[0082] Prepare according to the following recipe:

[0083] 100 parts of ethylene-vinyl acetate copolymer (EVA);

[0084] 35 parts of ammonium polyphosphate coated with melamine resin;

[0085] 15 parts of red phosphorus coated with phenolic resin;

[0086] 5 parts of zinc borate;

[0087] 20 parts of surface-activated superfine magnesium hydroxide powder;

[0088] 4 parts of compatibilizer;

[0089] Main antioxidant pentaerythritol ester (antioxidant 1010) 0.5 part;

[0090] Secondary Antioxidant Dilauryl Thiodipropionate

[0091] 0.5 copies;

[0092] (DLTP)

[0093] Lubricant calcium stearate 1.5 parts;

[0094] Lubricant polyethylene wax 1 part;

[0095] 2 parts of sensitizer pentaerythritol tetraacrylate (PETEA);

[0096] 4 parts of black masterbatch,

[0097] Wherein, the melt index MI of the ethylene-vinyl acetate copolymer (EVA) is 1.5g / 10min, and the weight percent of vinyl acetate in the copolymer is 15%, and the particle si...

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Abstract

The invention discloses a non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and a preparation method thereof. The preparation method of the material comprises the following steps: using ethylene-vinylacetate copolymer as base material to add nitrogen and phosphorus series fire retardant, inorganic fire retardant and other additives, and performing mixing granulation, extrusion moulding, irradiation crosslinking, extension forming and other working procedures to obtain the finished product. By adopting the preparation method of the invention, the defects of the prior art such as high response temperature of heat-shrinkable pipe and poor fire resistance can be overcome; and the product has good performance, meets the requirements of environmental protection and is suitable for the cables and components in war industry, aviation and aerospace, civil high-end electrical and electronic equipment and the like.

Description

technical field [0001] The invention relates to the technical field of organic-inorganic functional polymer materials, and more specifically relates to a halogen-free flame-retardant low-temperature shrinkable heat-shrinkable tube and a preparation method thereof. Background technique [0002] Functional polymer materials are an emerging frontier subject related to a wide range of subjects, including organic chemistry, inorganic chemistry, optics, electricity, structural chemistry, biochemistry, electronics, and even medicine. An extremely active research field at home and abroad. The main reason why functional polymer materials have become one of the important research hotspots in materials science at home and abroad is that they have unique "functions" that can be used to replace other functional materials and improve or improve their performance, making them a Functional materials with completely new properties. With the deepening of the understanding of polymer structu...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/06C08K9/10C08K3/32C08K3/02B29C47/92B29C35/10H01B17/58H01R4/72F16L58/16B29C48/92
CPCB29C48/0022B29C48/09B29C48/92B29C2948/92704B29C2948/92895
Inventor 徐国永严江威陈晋阳章于川李爱民陈恩军
Owner ANHUI ZHONGDING SEALING PARTS
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