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Environment-friendly flame-retardant cable material and preparation method thereof

A flame-retardant cable material and environmental protection technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of reduced elongation at break, cables that do not meet the requirements, and large additions, so as to reduce the embrittlement point and improve mechanical properties , Improve the effect of flame retardant performance

Active Publication Date: 2012-06-06
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wires and cables are required to be flame retardant in many occasions, but now flame retardants are mainly added with halogen-free flame retardants, such as aluminum hydroxide, magnesium hydroxide, nitrogen-based, phosphorus-based flame retardants, and the amount added is large, which is harmful to processing Performance and mechanical properties have a great impact, such as US patent US-5,298,544, although its product can meet the V-0 standard of UL-94, but the content of flame retardant exceeds 50% of the total mass fraction, And the elongation at break is also reduced a lot, which is not satisfactory for cables that require good flexibility

Method used

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  • Environment-friendly flame-retardant cable material and preparation method thereof

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Effect test

Embodiment 4

[0037] An environmentally friendly flame-retardant cable material, comprising the following components and parts by weight:

[0038] TPEE resin 40; PVC resin 30; nitrogen / phosphorus composite flame retardant 14, wherein nitrogen-based flame retardant is melamine, phosphorus-based flame retardant is polyphosphate amine, nitrogen / phosphorus ratio is 5 / 4; antioxidant 1010 2; plasticizer chlorinated paraffin 15; heat stabilizer organotin 0.6; reinforcing agent calcium carbonate 3.

[0039] Weigh the PVC resin, plasticizer, heat stabilizer and antioxidant according to the proportion and add them to the high-speed mixer for mixing. After the mixing is completed, add the mixture to the twin-screw extruder to make master batches for use. The processing temperature is 180-195℃; then the masterbatch is evenly mixed with TPEE resin, nitrogen / phosphorus composite flame retardant and reinforcing agent, and then added to the extruder to melt, extrude, and pelletize. The processing temperatu...

Embodiment 5

[0041] An environmentally friendly flame-retardant cable material, comprising the following components and parts by weight:

[0042] TPEE resin 70; PVC resin 10; nitrogen / phosphorus composite flame retardant 10, wherein the nitrogen-based flame retardant is melamine phosphate, the phosphorus-based flame retardant is red phosphorus, and the ratio of nitrogen / phosphorus is 4 / 1.4; antioxidant Agent 1098 0.5; plasticizer DOP 2; heat stabilizer CaSt 0.2; reinforcing agent CaSO4 whisker 2.

[0043] Weigh the PVC resin, plasticizer, heat stabilizer and antioxidant according to the proportion and add them to the high-speed mixer for mixing. After the mixing is completed, add the mixture to the twin-screw extruder to make master batches for use. The processing temperature is 180-195℃; then the masterbatch is evenly mixed with TPEE resin, nitrogen / phosphorus composite flame retardant and reinforcing agent, and then added to the extruder to melt, extrude, and pelletize. The processing te...

Embodiment 6

[0045] An environmentally friendly flame-retardant cable material, comprising the following components and parts by weight:

[0046] TPEE resin 62; PVC resin 25; nitrogen / phosphorus composite flame retardant 13, wherein the nitrogen-based flame retardant is a mixture of melamine and melamine phosphate in a weight ratio of 1:1, and the phosphorus-based flame retardant is phosphoramine and trimethylbenzene phosphate A mixture of ester weight ratio of 1:2, nitrogen / phosphorus ratio of 5 / 1; antioxidant 1076 1, antioxidant 168 0.5; plasticizer DOP 8, plasticizer M-50 4; heat stabilizer CaSt 0.2, heat stabilizer ZnSt 0.3; reinforcing agent calcium carbonate 1, CaSO4 whisker 1.5.

[0047] Weigh the PVC resin, plasticizer, heat stabilizer and antioxidant according to the proportion and add them to the high-speed mixer for mixing. After the mixing is completed, add the mixture to the twin-screw extruder to make master batches for use. The processing temperature is 180-195℃; then the m...

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Abstract

The invention discloses an environment-friendly flame-retardant cable material which comprises, by weight, 40 to 70 of thermoplastic elastomers, 10 to 30 of a PVC resin, 10 to 14 of a nitrogen / phosphorus composite fire retardant, 0.5 to 2 of an anti-oxidant, 2 to 15 of a plasticizer, 0.2 to 0.6 part of a heat stabilizer and 2 to 3 of a strengthening agent. According to the invention, TPEE and PVC are mixed to prepare the cable material, and thus, low temperature flexibility of PVC is improved, tensile strength, elongation, hardness and tear strength are enhanced, an ideal flame retardation effect can be obtained without addition of a great amount of the fire retardant since PVC can improve flame retardation of a composite, and cost can be reduced because PVC is much cheaper than TPEE; the fire retardant is obtained by compounding a nitrogen fire retardant and a phosphorus flame retardant, and the strengthening agent is added so as to improve mechanical properties of the composite cable material, so the cable material can be used in the field of high and mid grade sheaths for electric wires, cables and optical fibers.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to an environment-friendly flame-retardant cable material and a preparation method thereof. Background technique [0002] In many occasions, wires and cables are required to have good flexibility. At this time, rubber is often used as the sheath of wires and cables. Although rubber has excellent flexibility, wear resistance and weather resistance, it requires high investment, and many manufacturers do not have it. Ability to process rubber cables. Polyester elastomers can be used in the range of -70°C to 150°C due to their good creep resistance, impact resistance and fatigue resistance, high impact strength and good low temperature flexibility, as well as high tensile strength, High friction resistance and excellent insulation, and widely used in special cable markets, such as marine, mining, military and aerospace and other fields. Wires and cables are required to be flame retarda...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L27/06C08K5/3492C08K5/5399C08K5/523C08K3/26C08K7/08C08K3/02C08K3/32H01B7/295
Inventor 郭雪晴
Owner HEFEI GENIUS NEW MATERIALS
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