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Extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and preparation method thereof

A low-smoke flame-retardant, plastic alloy technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of unsatisfactory mechanical properties of materials, poor thermal deformation properties of materials at high temperature, and high manufacturing costs, and achieves a large amount of glue, The effect of good fluidity and good thermal deformation resistance

Active Publication Date: 2014-05-07
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method has a lot of shortcomings, one is that the mechanical properties of the materials prepared by this method are generally not ideal, and the second is that the high temperature thermal deformation performance of the materials is not good, and the manufacturing cost of the materials is also higher

Method used

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  • Extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and preparation method thereof
  • Extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and preparation method thereof
  • Extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The raw materials of halogen-free plastic alloys for cables that are extremely sensitive to temperature are: ethylene-propylene-hexene copolymer, polyethylene, propylene-ethylene-octene copolymer, ultra-high molecular weight polydimethylsiloxane, dimethicone peroxide Cumene, compatibilizers, inorganic flame retardants, flame retardant synergists, smoke suppressants, antioxidants, processing lubricants and UV-resistant masterbatches. Its specific formula is shown in Table 1, and the performance of the obtained halogen-free plastic alloy for cables which is extremely sensitive to temperature is shown in Table 2.

[0045] Its preparation method is as follows: (1) After fully mixing ultra-high molecular weight polydimethylsiloxane in an internal mixer at 130°C, adding dicumyl peroxide and mixing for 2 minutes; (2) mixing other The raw material components are mixed evenly through a high-speed mixer (rotating speed: 400-800rpm) according to the proportion; (3) the mixed mater...

Embodiment 2

[0047] The raw materials of halogen-free plastic alloys for cables that are extremely sensitive to temperature are: ethylene-propylene-hexene copolymer, polyethylene, propylene-ethylene-octene copolymer, ultra-high molecular weight polydimethylsiloxane, dimethicone peroxide Cumene, compatibilizers, inorganic flame retardants, flame retardant synergists, smoke suppressants, antioxidants, processing lubricants and UV-resistant masterbatches. Its specific formula is shown in Table 1, and the performance of the obtained halogen-free plastic alloy for cables which is extremely sensitive to temperature is shown in Table 2.

[0048] Its preparation method is identical with embodiment 1.

Embodiment 3

[0050] The raw materials of halogen-free plastic alloys for cables that are extremely sensitive to temperature are: ethylene-propylene-hexene copolymer, polyethylene, propylene-ethylene-octene copolymer, ultra-high molecular weight polydimethylsiloxane, dimethicone peroxide Cumene, compatibilizers, inorganic flame retardants, flame retardant synergists, smoke suppressants, antioxidants, processing lubricants and UV-resistant masterbatches. Its specific formula is shown in Table 1, and the performance of the obtained halogen-free plastic alloy for cables which is extremely sensitive to temperature is shown in Table 2.

[0051] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to an extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables and its preparation. The extremely temperature sensitive halogen-free and low smoke flame retardant plastic alloy for cables provided in the invention comprises the following raw materials: an ethylene-propylene-hexene copolymer, polyethylene, a propylene-ethylene-octene copolymer, ultra-high molecular weight polydimethylsiloxane, dicumyl peroxide, a compatibilizer, an inorganic flame retardant, a flame retardant synergist, a smoke suppressant, an antioxidant, a processing lubricant, and an anti-ultraviolet masterbatch. Without halogen, the plastic alloy provided in the invention is an environment friendly plastic for cables. The material has good anti-thermal deformation performance under a temperature of 80-110DEG C, with the thermal deformation being not greater than 20% under the condition of 90DEG C*1kg*6h, and has good fluidity at a temperature higher than 140DEG C, a large volume of plastic can be discharged during extrusion. From 140DEG C on, along with the increase of temperature, the variation range of the fluidity and extrusion plastic discharge volume of the material is large. Thus, the plastic alloy is suitable for preparing the halogen-free sheaths of cables of various specifications.

Description

technical field [0001] The invention relates to polymer materials, in particular to a halogen-free low-smoke flame-retardant plastic alloy for cables which is extremely sensitive to temperature and a preparation method thereof. Background technique [0002] With the improvement of environmental protection and safety awareness in countries all over the world, halogen-free low-smoke flame-retardant polyolefin cables have been widely used and have great development potential. Halogen-free plastics for cables have also been developed to a great extent, with more and more types and better performance. Generally, halogen-free low-smoke flame-retardant plastics for cables mainly improve the flame retardancy of materials by adding inorganic hydroxides (such as aluminum hydroxide and magnesium hydroxide). In order to make the material have good flame retardant properties, a lot of inorganic hydroxides must be added, which will not only reduce the mechanical properties of the materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L83/04C08L51/06C08K13/06C08K3/22C08K5/134C08K5/526C08K5/14H01B7/295
Inventor 周光斌项健
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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