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Polyolefin composite material for butterfly optical cable sheath and preparation method thereof

A butterfly-shaped optical cable and composite material technology, which is used in cables, insulated cables, plastic/resin/wax insulators, etc. to achieve good wrapping force, improved flame retardant properties, and smooth appearance.

Inactive Publication Date: 2015-07-15
中广核三角洲(苏州)高聚物有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-smoke halogen-free polyolefin cable materials for communication optical cable sheaths should be in accordance with the relevant technical requirements of YD / T 1113-2001. The manufacturer's requirements for polyolefin cable materials for butterfly cable sheaths are only elongation at break ≥ 150%, strength ≥ 10Mpa and no oxygen index requirements.

Method used

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  • Polyolefin composite material for butterfly optical cable sheath and preparation method thereof
  • Polyolefin composite material for butterfly optical cable sheath and preparation method thereof

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Embodiment

[0031] Embodiment: a polyolefin composite material for a butterfly cable sheath, said polyolefin composite material for a butterfly cable sheath is composed of the following components in parts by weight, as shown in Table 1:

[0032] Table 1

[0033]

[0034] The above EVA ethylene vinyl acetate copolymer resin requires VA content of 25~30%, MI value of 6~10g / 10min;

[0035] The above-mentioned LLDPE linear low density polyethylene resin has a density of 0.912g / cm 3 , MI value 1~3.5g / 10min, preferably MI value 2g / 10min;

[0036] The grafted resin substrate of the above-mentioned maleic anhydride grafted polyolefin modifier is PE or PE / POE, and the grafting rate is 0.2~0.8%;

[0037] Described calcium carbonate filler, embodiment 1 is light calcium carbonate, embodiment 2 is 2500 order heavy calcium carbonate, embodiment 3 is light calcium carbonate, embodiment 4 is 2500 order heavy calcium carbonate;

[0038] The self-made high-efficiency lubricant is composed of high m...

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Abstract

The invention relates to a polyolefin composite material for a butterfly optical cable sheath and a preparation method thereof. The polyolefin composite material consists of the following components: 20-25 parts of EVA ethylene-vinyl acetate copolymer resin, 10-20 parts of LLDPE linear low density polyethylene resin, 5-10 parts of a maleic anhydride grafted polyolefin modifier, 55-60 parts of a calcium carbonate filler, 0.1-0.2 part of an antioxidant, and 0.5-2.0 parts of a self-made efficient lubricant. The EVA ethylene-vinyl acetate copolymer resin requires a VA content of 18-28% and an MI value of 1-8g / 10min; the LLDPE linear low density polyethylene resin has a density of 0.912g / cm<3> and an MI value of 1-3.5g / 10min; the grafting resin substrate of the maleic anhydride grafted polyolefin modifier is PE or PE / POE; and the calcium carbonate filler is light calcium carbonate or 2500-mesh heavy calcium carbonate. The polyolefin composite material provided by the invention has the advantage of low casting, fast extrusion speed and smooth appearance, and the finished product butterfly optical cable has good wrapping force, and the tensile strength and flame retardant properties are greatly improved.

Description

technical field [0001] The invention relates to a polyolefin sheath material for an indoor butterfly optical cable and a self-supporting butterfly optical cable, in particular to a polyolefin composite material for a butterfly optical cable sheath and a preparation method thereof. Background technique [0002] With the development of optical communication networks and the continuous deepening of fiber-to-the-home projects, the construction of fiber-optic access projects is growing exponentially. There are more and more optical cables used in optical fiber access networks, and the amount of related cable sheath materials is also used year by year. rise. Low-smoke halogen-free polyolefin cable materials for communication optical cable sheaths should be in accordance with the relevant technical requirements of YD / T 1113-2001. The manufacturer's requirements for polyolefin cable materials for butterfly cable sheaths are only elongation at break ≥ 150%, strength ≥ 10Mpa and no o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08L51/06C08K3/22C08K3/26H01B3/44H01B7/295
CPCC08L23/0853C08L2201/02C08L2201/08C08L2203/202C08L2205/025C08L2205/035C08L2207/064H01B3/441H01B7/295
Inventor 谢俊
Owner 中广核三角洲(苏州)高聚物有限公司
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