High flame retardance heat resistant low smoke no-halogen cable sheath and its production process

A kind of cable sheathing material, high flame retardant technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of lack of elasticity and flexibility, no soft hand feel, wire hardness, etc., to improve extrusion performance, elongation rate Good, high-strength effect

Inactive Publication Date: 2006-05-17
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, we used one or two composites of thermoplastic materials such as EVA or PE and PP to make low-smoke and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, high flame-retardant, high-temperature-resistant, low-smoke, halogen-free cable sheathing material, its main raw materials are 100 SEBS, 100 white oil, 100 PP, 5 maleic anhydride grafted SEBS, 300 flame retardant, 3 coupling agent, 5 Ultrafine white smoke, 4 siloxane, 1.5 antioxidant 1010, 0.5 antioxidant PS802, 1 environmental protection toner.

[0029] 1. The flame retardant system and the reinforcement system are pretreated with silane for use;

[0030] 2. Put the first four base materials into the powder tank in order for mixing. After fully mixing, use a co-rotating twin-screw machine to knead and extrude to granulate. The processing temperature is 185°C for the first stage and 190°C for the second stage. , The third section is 200°C, the fourth section is 210°C, the fifth section is 220°C, the sixth section is 220°C, the seventh section is 220°C, the die head temperature is 230°C; the die surface is water-cut or the strands are water-cut into pellets. ...

Embodiment 2

[0034] Example 2, high flame-retardant, high-temperature-resistant, low-smoke, halogen-free cable sheathing material, its main raw materials are 100 SEBS, 100 white oil, 50 PP, 5 maleic anhydride grafted SEBS, 270 flame retardant, 6 coupling agent, 3 Ultrafine white smoke, 4 siloxane, 1.5 antioxidant 1010, 0.5 antioxidant PS802, 3 environmental protection toner. Its processing technology is made according to the processing technology of implementation 1.

[0035] Its hardness is Shao A92 degrees, and its density is 1.16g / cm 3 ; The tensile strength is 8.65MPa; the elongation at break is 500%; the flame retardant passes the VW-1 burning test; the extruded sheath has a good surface and an excellent feel. The temperature resistance grade of the product is 90 degrees.

Embodiment 3

[0036] Example 3, high flame-retardant, high-temperature-resistant, low-smoke, halogen-free cable sheathing material, its main raw materials are 100 SEBS, 50 white oil, 10 PS, 5 maleic anhydride grafted SEBS, 190 flame retardant, 5 coupling agent, 4 Ultrafine white smoke, 4 siloxane, 1.5 antioxidant 1010, 0.5 antioxidant PS802, 3 environmental protection toner. Its processing technology is made according to the processing technology of implementation 1.

[0037] Its hardness is Shao A75 degrees, and its density is 1.08g / cm 3 ; The tensile strength is 11.25MPa; the elongation at break is 600%; the flame retardant passes the VW-1 burning test; the extruded sheath has a good surface and an excellent feel. The temperature resistance grade of the product is 90 degrees.

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PUM

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Abstract

The high flame retardance heat resistant low smoke no-halogen cable sheath material features its main materials including SEBS, white oil, PP, PS, maleic anhydride grafted SEBS, P-N fire retardant, coupler, tackified coumarone resin, superfine white carbon black, siloxane, antioxidant 1010 and PS802, and environment friendly color powder. The cable sheath material as one kind of green product contains no halogen, no heavy metal and other environment harming matter, and has high fire retarding performance, high strength, high extensibility and high heat resistance.

Description

technical field [0001] The invention relates to a novel environment-friendly low-smoke and halogen-free cable material, which discloses a formula and a processing technology of a low-smoke, halogen-free and flame-retardant cable material with a high temperature resistance level. Background technique: [0002] In response to the international environmental protection trend, PVC will be restricted or banned in many wire application fields, because it will produce harmful gases and more smoke when burned. In the event of an accident such as a fire, these harmful gases and smoke will pose a threat to human health. Therefore, in many places such as home appliance power cables, network cables, computer peripheral cables, etc., low-smoke halogen-free wires will replace traditional PVC wires. [0003] In the past, we used one or two composites of thermoplastic materials such as EVA or PE and PP to make low-smoke and halogen-free materials. The wires made would appear hard, without ...

Claims

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Application Information

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IPC IPC(8): C08L53/02H01B7/295
Inventor 涂建伟
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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