Wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition for electric wires and cables and preparation method thereof

A thermoplastic elastomer, wire and cable technology, applied in the field of wire and cable materials, can solve problems such as poor wear resistance

Active Publication Date: 2017-12-01
JIANGSU LISIDE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of poor abrasion resistance of conventional halogen-free flame-retardant TPE cable materials based on SEBS and polyolefin, the present invention ...

Method used

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  • Wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition for electric wires and cables and preparation method thereof
  • Wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition for electric wires and cables and preparation method thereof
  • Wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition for electric wires and cables and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Mixing of high wear-resistant halogen-free flame-retardant TPE system

[0036] Add SEBS and white oil into the mixer, and complete the oil-filling of SEBS under low-speed stirring; mix the oil-extended SEBS and other components evenly under high-speed stirring;

[0037] (2) Extrusion granulation

[0038] Completing the mixing, plasticizing and extruding granulation of the composition in a co-rotating twin-screw extruder;

[0039] (3) Material performance test

[0040] The dried material is injected into the injection molding machine to produce standard samples specified in various test standards, and the relevant material properties are tested. Qualified cables are prepared on the wire and cable pulling equipment, samples are taken and relevant wire and cable tests are carried out.

[0041] Among them, the main focus is on the tensile properties of materials, the Taber abrasion test, and the flame retardancy of cables. The materials and proportions in the exampl...

Embodiment 2

[0043] The implementation process is the same as in Example 1, except that the proportion of PA is increased, and the proportion of white oil and SEBS is adjusted to maintain the hardness of the material. Other materials and proportioning are shown in Table 2, and the obtained material results are shown in Table 2.

Embodiment 3

[0045] The implementation process is the same as in Example 1, except that the proportion of PA is reduced, and the proportion of white oil and SEBS is adjusted in order to maintain the hardness of the material. Other materials and proportioning are shown in Table 2, and the obtained material results are shown in Table 2.

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PUM

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Abstract

The invention discloses a wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer (TPE) composition for electric wires and cables. The wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition is prepared from the following raw materials in percentage by weight: 20 percent to 40 percent of SEBS (styrene hydride-butadiene-styrene block copolymer), 20 percent to 40 percent of white oil, 10 percent to 30 percent of nylon, 5 percent to 10 percent of maleic anhydride grafted SEBS, 10 percent to 20 percent of diethyl aluminum hypophosphite, 10 percent to 20 percent of melamine cyanurate and 1 percent to 5 percent of other auxiliary agents. Aiming at the problem that the wearing-resisting performance of a conventional halogen-free and flame-retarding TPE electric wire and cable material based on the SEBS and polyolefin is poor, the invention provides the wear-resisting, high-flame-retarding, halogen-free and flame-retarding thermoplastic elastomer composition; the nylon and the TPE material are compounded by utilizing an excellent wear-resisting property of the nylon so as to improve the wear-resisting property of the TPE; the invention also accidentally finds out that the nylon is coordinated with a diethyl hypophosphite flame-retarding system, and efficient flame retarding is realized under the condition that a PPO (Polyphenylene Oxide) component does not need to be added.

Description

technical field [0001] The invention relates to the technical field of wire and cable materials, in particular to a wear-resistant, highly flame-retardant, halogen-free flame-retardant thermoplastic elastomer composition for wire and cable and a preparation method thereof. Background technique [0002] The halogen-free flame-retardant thermoplastic elastomer (TPE) cable material is basically composed of a TPE conventional system based on hydrogenated styrene-butadiene block copolymer (SEBS) and a phosphorus-nitrogen-based halogen-free flame-retardant system. It is a kind of polymer alloy material with general-purpose plastic processing properties, but the product has properties similar to cross-linked rubber. The double bond in the molecular structure of SEBS is saturated, so it has anti-aging characteristics; the composition does not contain halogen, it is safe and non-toxic, good stability, soft texture, beautiful appearance, comfortable hand feeling, good resilience and s...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L91/06C08L77/02C08L51/00C08K5/00C08K5/5313C08K5/3492H01B3/28
Inventor 李金忠雷华
Owner JIANGSU LISIDE NEW MATERIAL
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