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A flame-retardant sheath material for anti-cracking low-smoke halogen-free optical cable

A flame retardant sheath, anti-cracking technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve problems such as poor cracking resistance, achieve good heat resistance, improve high-temperature cracking resistance, and improve interface adhesion. Effect

Active Publication Date: 2016-02-17
江苏科信光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most commercial products of low-smoke halogen-free flame-retardant sheathing materials have poor crack resistance

Method used

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  • A flame-retardant sheath material for anti-cracking low-smoke halogen-free optical cable
  • A flame-retardant sheath material for anti-cracking low-smoke halogen-free optical cable
  • A flame-retardant sheath material for anti-cracking low-smoke halogen-free optical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Dry the flame retardant (35kg aluminum hydroxide H-WF-1, 3kg zinc borate ZB-2335 and 1.2kg organic montmorillonite DK-4) until the moisture content is lower than 5%, and the dried flame retardant Mix with coupling agent (1kg monoalkoxy titanate TC-2), stir at 80°C for 8 minutes at a stirring speed of 200rpm to obtain mixture a; add flame retardant to mixture a agent filler (6kg active calcium carbonate), lubricant (1.2kgPE wax and 0.3kg stearic acid) and antioxidant (0.5kg antioxidant 1010 and 0.5kg antioxidant 168), after adding, the temperature is 80 ℃ Under the conditions, stir at a stirring speed of 220rpm for 10min to obtain mixture b; add base material (30kgHDPE5000S, 10kgEVA7470M and 5kgPOE polyolefin elastic 8201), anti-ultraviolet agent (3.3kg polyethylene carbon black masterbatch), Compatibilizer (2kg compatibilizer MC-218) and additives (1kg silicone masterbatch PW1050), after adding, stir at a speed of 250rpm for 2min to obtain mixture c, first send mixture ...

Embodiment 2

[0044]Dry the flame retardant (35kg aluminum hydroxide H-WF-1, 3kg zinc borate ZB-2335 and 1.2kg organic montmorillonite DK-4) until the moisture content is lower than 5%, and the dried flame retardant Mix with coupling agent (0.5kg monoalkoxy titanate TC-2), stir at 85°C for 9min at a stirring speed of 250rpm to obtain mixture a; Fuel filler (4kg active calcium carbonate), lubricant (1.2kgPE wax and 0.3kg stearic acid) and antioxidant (0.5kg antioxidant 1010 and 0.5kg antioxidant 168), after adding, the temperature is 85℃ Under certain conditions, stir at a stirring speed of 250rpm for 11min to obtain mixture b; add base material (30kgHDPE5000S, 10kgEVA7470M and 5kgPOE polyolefin elastic 8201), anti-ultraviolet agent (1kg polyethylene carbon black masterbatch), Compatibilizer (1kg compatibilizer MC-218) and additives (0.5kg silicone masterbatch PW1050), after adding, stir at a speed of 270rpm for 3min to obtain mixture c, first send mixture c into twin-screw extruder Exit th...

Embodiment 3

[0046] Dry the flame retardant (35kg aluminum hydroxide H-WF-1, 3kg zinc borate ZB-2335 and 1.2kg organic montmorillonite DK-4) until the moisture content is lower than 5%, and the dried flame retardant Mix it with a coupling agent (1.5g monoalkoxy titanate TC-2), and stir at a stirring speed of 300rpm for 10min at a temperature of 90°C to obtain a mixture a; Fuel filler (8kg active calcium carbonate), lubricant (1.2kgPE wax and 0.3kg stearic acid) and antioxidant (0.5kg antioxidant 1010 and 0.5kg antioxidant 168), after adding, the temperature is 90℃ Under certain conditions, stir at a stirring speed of 280rpm for 12min to obtain mixture b; add base material (30kgHDPE5000S, 10kgEVA7470M and 5kgPOE polyolefin elastic 8201), anti-ultraviolet agent (5kg polyethylene carbon black masterbatch), Compatibilizer (3kg compatibilizer MC-218) and additives (1.5kg silicone masterbatch PW1050), after adding, stir at a speed of 320rpm for 3min to obtain mixture c, first send mixture c into...

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Abstract

The invention discloses an anti-cracking, low-smoke, halogen-free and flame-retardant optical cable jacket material, relating to the field of optical cable jackets. The flame-retardant jacket material consists of a base material, a flame retardant, a flame retardant filler, a coupling agent, a compatilizer, a lubricant, an antioxidant, carbon black and an aid, wherein the base material consists of HDPE (high-density polyethylene) 5000S, EVA (ethylene-vinyl acetate) 7470M and POE (polyolefin elastomer) 8201; the flame retardant consists of aluminum hydroxide H-WF-1, zinc borate ZB-23-35 and organic montmorillonite DK-4; the flame retardant filler is activated calcium carbonate; the coupling agent is single alkoxy titanate TC-2; the compatilizer is compatilizer MC-218; the lubricant consists of PE (polyethylene) wax and stearic acid; the antioxidant consists of an antioxidant 1010 and an antioxidant 168; an anti-ultraviolet agent is a polyethylene carbon black master batch; the aid is a silicone master batch PW1050. A jacket made of the jacket material of the technical scheme of the invention has good anti-cracking performance.

Description

technical field [0001] The invention relates to the field of optical cable sheaths, in particular to an anti-cracking low-smoke halogen-free optical cable flame-retardant sheathing material. Background technique [0002] The optical cables used in certain environments are required to have flame retardant properties. For example, optical cables used in subways, tunnels, oil, coal mines, buildings, computer rooms, public buildings, etc. At this time, flame-retardant materials should be used to make cable sheaths, especially with the rapid development of fiber-to-the-home (FTTH), indoor optical cables, especially leather cables (access network butterfly cables), must use flame-retardant sheath materials . Flame-retardant sheath materials are usually divided into two categories, one is flame-retardant polyvinyl chloride (PVC) sheath materials, and the other is flame-retardant polyolefin (such as EVA, PE) sheath materials. [0003] Chlorine atoms (halogen atoms) in the polyvin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/04C08K3/22C08K3/38C08K3/34C08K3/26C08K5/09C08K5/134C08K5/526C08K3/04B29C47/92H01B3/44B29C48/92
CPCC08L23/06C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08L2205/035C08L2207/062C08L23/0853C08L23/0815C08K13/06C08K9/04C08K2003/2227C08K3/38C08K3/346C08K2003/265C08K3/04B29C48/04B29C48/385B29C48/40B29C48/92B29C2948/92561B29C2948/9259B29C2948/92704
Inventor 张钊连张才彦陈炳炎
Owner 江苏科信光电科技有限公司
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