SEBS thermoplastic high-elasticity earphone cord coating special-purpose material and preparation method thereof

A technology of high elasticity and headphone wires, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of weak resistance to copper damage, low tensile strength, low elasticity, etc., to facilitate industrial production and stretch resistance Effect of high strength, good stability and aging resistance

Active Publication Date: 2013-07-10
DONGGUAN JISU PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a SEBS thermoplastic high-elastic earphone wire outer cover material with high elasticity, yellowing resistance, copper damage resistance and high tensile strength to overcome the shortcomings of the existing technology. There are deficiencies such as low elasticity, easy yellowing, weak resistance to copper damage and low tensile strength of the earphone cable jacket in the technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The SEBS thermoplastic high-elastic earphone wire jacket special material provided in this embodiment comprises the following components by weight percentage:

[0033] Styrene-ethylene-butadiene-styrene copolymer with a weight average molecular weight of 50,000 50.0%;

[0034] Softening plasticizer saturated linear naphthenic oil 20.0%;

[0035] Modifier SEBS copolymer grafted maleic anhydride (SEBS-g-MAH) 10.0%;

[0036] Homopolypropylene 16.0%;

[0037] Antioxidant 2,6-di-tert-butyl-4-methylphenol 1.0%;

[0038] Light stabilizer 4-hydroxybenzophenone 1.0%;

[0039]Metal deactivator 1,2-bis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine 1.0%;

[0040] Processing Aid Polybutyl Acrylate 1.0%.

[0041] Its preparation method is as follows:

[0042] In the first step, styrene-ethylene-butadiene-styrene copolymer with S weight average molecular weight of 50,000, softening plasticizer saturated linear naphthenic oil, modifier SEBS copolymer graft maleic anhyd...

Embodiment 2

[0045] The SEBS thermoplastic high-elastic earphone wire jacket special material provided in this embodiment comprises the following components by weight percentage:

[0046] Styrene-ethylene-butadiene-styrene copolymer with a weight average molecular weight of 100,000 40.0%;

[0047] Softening plasticizer white mineral oil 25.0%;

[0048] Modifier polyolefin elastomer grafted maleic anhydride (POE-g-MAH) 13.0%;

[0049] Copolymer polypropylene 20.0%;

[0050] Antioxidant stearyl phosphite 0.5%;

[0051] Light stabilizer 1-hydroxybenzotriazole 0.5%;

[0052] Metal deactivator 1,2-bis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine 0.5%;

[0053] Processing aid polysiloxane 0.5%.

[0054] Its preparation method is as follows:

[0055] The first step is to graft maleic anhydride (POE-g -MAH), copolymerized polypropylene, antioxidant octadecyl phosphite, light stabilizer 1-hydroxybenzotriazole, metal deactivator 1,2-bis[β-(3,5-di-tert-butyl- 4-hydroxyphenyl) prop...

Embodiment 3

[0058] The SEBS thermoplastic high-elastic earphone wire jacket special material provided in this embodiment comprises the following components by weight percentage:

[0059] Styrene-ethylene-butadiene-styrene copolymer with a weight average molecular weight of 200,000 30.0%;

[0060] Softening plasticizer saturated linear naphthenic oil 30.0%;

[0061] Modifier styrene-maleic anhydride random copolymer (SMA) 20%;

[0062] Random copolymerized polypropylene 18.0%;

[0063] Antioxidant decyl phosphite 0.7%;

[0064] Light stabilizer hindered amine 0.3%;

[0065] Metal deactivator 1,2-bis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine 0.7%;

[0066] Processing aid metallic soap 0.3%.

[0067] Its preparation method is as follows:

[0068] In the first step, the styrene-ethylene-butadiene-styrene copolymer with a weight-average molecular weight of 200,000, the softening plasticizer saturated linear naphthenic oil, the modifier styrene-maleic anhydride random copol...

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PUM

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Abstract

The invention belongs to the technical field of thermoplastic materials and relates to a SEBS thermoplastic high-elasticity earphone cord coating special-purpose material. The SEBS thermoplastic high-elasticity earphone cord coating special-purpose material comprises, by weight, 30.0 to 60.0% of a SEBS rubber resin, 10.0 to 35.0% of a softening plasticizer, 5.0 to 20.0% of a modifier, 10.0 to 35.0% of a polypropylene resin, 0.3 to 1.5% of an anti-oxidant, 0.3 to 1.5% of a light stabilizer, 0.3 to 1.5% of a metal deactivator and 0.3 to 1.5% of a processing assistant. Compared with the prior art, the SEBS thermoplastic high-elasticity earphone cord coating special-purpose material has an optimized formula, has good stability, good aging resistance, high elasticity, yellowing resistance, copper toxicity resistance, high tensile strength and a silky and elegant handle, and can be processed and molded easily. In addition, the invention also discloses a preparation method of the SEBS thermoplastic high-elasticity earphone cord coating special-purpose material.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic materials, and in particular relates to a SEBS thermoplastic high-elastic earphone cord cover material and a preparation method thereof. Background technique [0002] With the advent of the 3G era and the continuous improvement of people's living standards, people's lifestyles are becoming more and more diversified. Nowadays, when people are traveling or relaxing at home, they often make video calls, watch mobile TV, or listen to music. In order to obtain better sound quality, and in order not to affect others and keep their privacy to a certain extent, people generally choose to use earphones to implement the above activities. In addition, earphones have become an essential part of electronic products with sound such as mobile phones, computers and walkmans. [0003] The earphone generally includes an earphone cable and earplugs or hanging ears arranged at one or both ends of the earphone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L23/14C08L51/00C08L51/06C08L35/06C08L23/08H01B3/30B29B9/06B29C47/92B29C48/92
CPCB29C48/0022B29C48/04B29C48/40B29C48/911
Inventor 汪品洋
Owner DONGGUAN JISU PLASTIC TECH
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