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Thermoplastic halogen-free few-smoke flame-proof cable sheath material and machining process

A cable sheath material and low-smoke flame-retardant technology, which is applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of restricting the development of halogen-free low-smoke flame-retardant materials and greatly affecting the mechanical properties of materials, and achieve superior processing performance , Improve compatibility and good mechanical properties

Inactive Publication Date: 2006-04-26
大连圣迈化学有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The use of inorganic flame retardants to achieve the effect of flame retardancy and smoke suppression often requires a high addition amount (more than 50%), which has a greater impact on the mechanical properties of the material. Due to technical reasons, my country lags far behind in the use of inorganic flame retardants In foreign countries, the halogen-free and low-smoke materials used in important occasions are mainly imported, which also limits the development of halogen-free and low-smoke flame-retardant materials.

Method used

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  • Thermoplastic halogen-free few-smoke flame-proof cable sheath material and machining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1: Formulation Design

[0031] A: 100 grams of polyolefin resin (EVA);

[0032] B: 90 grams of aluminum hydroxide, 30 grams of magnesium salt whiskers, and the aspect ratio of the whisker material is 80;

[0033] C: 2 grams of silane 172 coupling agent, 3 grams of zinc stearate;

[0034] D: 2 grams of carbon black, 1 gram of paraffin.

[0035] Put A, B, C, and D into a high-speed mixer and stir evenly. The temperature is 100-120°C, the speed is 100-200rpm, and the mixture is complete.

[0036] Step 2: Processing

[0037] Control the temperature of the heating section of the twin-screw extruder at 140°C, add the mixed material in step 1, complete one-time processing, and pelletize after extrusion and air-cooling or water-cooling.

[0038] Step 3: Test Results

[0039] The pellets are extruded into tablets, and tested according to national standards or IEC and other standard test methods to achieve the following relevant technical performance indicators:

[004...

Embodiment 2

[0048] Step 1: Formulation Design

[0049] A: Polyolefin resin (EVA) 80 grams, (PC) 20 grams;

[0050] B: 80 grams of aluminum hydroxide, 40 grams of magnesium salt whiskers, and the aspect ratio of the whisker material is 70;

[0051] C: 2 grams of silane 171 coupling agent;

[0052] D: 2 grams of carbon black, 1 gram of paraffin.

[0053] Put A, B, C, and D into a high-speed mixer and stir evenly. The temperature is 100-120°C, the speed is 100-200rpm, and the mixture is complete.

[0054] Step 2: Processing

[0055] Control the temperature of the heating section of the twin-screw extruder at 150°C, add the mixed material in step 1, complete one-time processing, and pelletize after extrusion and air-cooling or water-cooling.

[0056] Step 3: Test Results

[0057] The pellets are extruded into tablets, and tested according to national standards or IEC and other standard test methods to achieve the following relevant technical performance indicators:

[0058] Tensile stre...

Embodiment 3

[0066] Step 1: Formulation Design

[0067] A: Polyolefin resin (EVA) 50 grams, (PC) 50 grams;

[0068] B: 70 grams of magnesium hydroxide, 40 grams of magnesium salt whiskers, and the aspect ratio of the whisker material is 30;

[0069] C: 2 grams of silane 55H coupling agent, 1 gram of titanate;

[0070] D: 3 grams of white carbon black, 2 grams of paraffin.

[0071] Put A, B, C, and D into a high-speed mixer and stir evenly. The temperature is 100-120°C, the speed is 100-200rpm, and the mixture is complete.

[0072] Step 2: Processing

[0073] Control the temperature of the heating section of the twin-screw extruder at 150°C, add the mixed material in step 1, complete one-time processing, and pelletize after extrusion and air-cooling or water-cooling.

[0074] Step 3: Test Results

[0075] The pellets are extruded into tablets, and tested according to national standards or IEC and other standard test methods to achieve the following relevant technical performance indica...

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Abstract

The present invention relates to the recipe design and making process of thermoplastic halogen-free low-smoke flame-retarding cable sheath material. Into polyolefin resin as base material, non-toxic halogen-free fire retardant, reinforcing inorganic whisker and proper assistant are added, and through compounding, mixing, plasticizing and pelletizing, the thermoplastic halogen-free low-smoke flame-retarding cable sheath material is prepared. Technologically, the present invention features no halogen, P, Pb and other heavy metal, excellent mechanical performance, machining performance and fire retarding performance, and excellent thermal deforming, thermal ageing and heat shock performance. The material may be used in making cable with high safety and high reliability.

Description

technical field [0001] The invention relates to a technical invention in the field of wire and cable industry, specifically a thermoplastic halogen-free low-smoke flame-retardant cable sheath material and its processing technology, which are applied to the outer sheath of wire and cable, and have flame-retardant, smoke-suppressing, and halogen-free properties. , non-toxic and other functional characteristics. It can also be used in household appliances, electronics, construction and other fields. It is a new type of environmentally friendly polymer functional material. technical background [0002] Polymer materials can be seen everywhere in our daily life, such as wires and cables, electrical switches, remote controls, TV sets, washing machine casings, etc. Plastics are easy to burn, and produce a lot of harmful gas and smoke when burning. The fire hazard caused by this has become a global concern. The United States is the first country to limit the smoke and toxic gases ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K3/20C08L23/12C08L27/06H01B7/17
Inventor 赵大明严宝财王舫丛卫军张涛高绪国
Owner 大连圣迈化学有限公司
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