A halogen-free low-smoke flame-retardant injection molding compound for branch cables and its preparation and application

A low-smoke flame retardant, plastic injection technology, applied in the field of materials, to achieve the effect of good fluidity and high elongation at break

Active Publication Date: 2011-12-28
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few halogen-free injection molding materials for branch cables with high cost performance on the market. The main bottleneck technology is the balance between the fluidity of injection molding materials and other mechanical properties and flame retardant properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Thermoplastic elastomer, ethylene-methyl acrylate copolymer, polyethylene, compatibilizer, phosphorus nitrogen flame retardant, inorganic flame retardant, flame retardant synergist, smoke suppressant, antioxidant, processing lubricant, UV resistance Masterbatch. The specific formula is shown in Table 1, and the performance is shown in Table 2.

[0041] Table 1

[0042] raw material name

parts by weight

Ethylene-propylene-octene copolymer (melt index at 190℃×2.16kg

The lower is 2g / 10min)

60

Ethylene-methyl acrylate copolymer (melt index at 190 ° C × 2.16kg

40g / 10min under condition)

20

Polyethylene (melt index under the condition of 190℃×2.16kg is

10g / 10min)

20

Compatibilizer (ethylene-octene copolymer grafted maleic anhydride) (melt index in

20g / 10min at 190℃×2.16kg)

10

Phosphorus nitrogen flame retardant Doher-6000 (the mass fraction of phosphorus is 23%, the mass f...

Embodiment 2

[0048] Thermoplastic elastomer, ethylene-methyl acrylate copolymer, polyethylene, compatibilizer, phosphorus nitrogen flame retardant, inorganic flame retardant, flame retardant synergist, smoke suppressant, antioxidant, processing lubricant, UV resistance Masterbatch. Concrete formula is as shown in table 3, and performance is as shown in table 4.

[0049] table 3

[0050] raw material name

parts by weight

Ethylene-propylene-octene copolymer (melt index at 190℃×2.16kg

Under the condition of 30g / 10min)

50

Ethylene-methyl acrylate copolymer (melt index at 190°C×

10g / 10min under the condition of 2.16kg)

30

Polyethylene (melt index under the condition of 190℃×2.16kg is

50g / 10min)

20

Compatibilizer (ethylene-octene copolymer grafted maleic anhydride) (melt index

The number is 20g / 10min under the condition of 190℃×2.16kg)

15

Phosphorus nitrogen flame retardant Doher-6000 (the ma...

Embodiment 3

[0055] Thermoplastic elastomer, ethylene-methyl acrylate copolymer, polyethylene, compatibilizer, phosphorus nitrogen flame retardant, inorganic flame retardant, flame retardant synergist, smoke suppressant, antioxidant, processing lubricant, UV resistance Masterbatch. Concrete formula is as shown in table 5, and performance is as shown in table 6.

[0056] table 5

[0057] raw material name

parts by weight

Ethylene-propylene-octene copolymer (melt index at 190℃×2.16kg

The lower is 2g / 10min)

60

Ethylene-methyl acrylate copolymer (melt index at 190 ° C × 2.16kg

40g / 10min under condition)

20

Polyethylene (melt index under the condition of 190℃×2.16kg is

10g / 10min)

20

Compatibilizer (ethylene-octene copolymer grafted maleic anhydride) (melt index in

20g / 10min at 190℃×2.16kg)

10

Phosphorus nitrogen flame retardant Doher-6000 (the mass fraction of phosphorus is 23%, the mass fra...

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Abstract

The invention relates to a zero-halogen low-smoke flame-retardant injection molding material for a branch cable and preparation as well as application thereof. The zero-halogen low-smoke flame-retardant injection molding material comprises the main raw materials of zero-halogen polyolefine resin, compatilizer, phosphonitryl flame retardant, inorganic flame retardant, flame-retardant synergist, smoke suppressor, processing lubricant, antioxidant and ultraviolet-resistant master batch. The material does not contain halogen element, and has higher breaking elongation, oxygen index and volume resistivity and excellent fluidity; a large-sized mould can be quickly filled at the temperature of 150-170 DEG C; an injection molding product has a smooth surface; and the material is particularly suitable for preparing a zero-halogen branch connector for the branch cable.

Description

technical field [0001] The invention relates to materials, in particular to a halogen-free low-smoke flame-retardant injection molding compound and its preparation and application. Background technique [0002] Pre-branch cables are used as power distribution trunk lines in urban high-rise buildings, which can make low-voltage power distribution systems safer, more reliable, and more economical, and have been widely promoted and applied. 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. The cable body of the halogen-free polyolefin prefabricated branch cable, that is, the main cable and the branch line, use halogen-free low-smoke flame-retardant polyolefin cable material, and the branch connector should also use halogen-free low-smoke flame-retardant polyolefin material in terms of performance requirements. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L51/06C08L51/00C08K13/06C08K3/22C08K3/04B29C47/92H01B7/295B29C48/92
CPCB29C48/04B29C48/875B29C48/92B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 周光斌项健
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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