Earphone wire material and preparation process thereof

A preparation process and a technology for an earphone cable, which are applied in the field of earphone cable materials and their preparation technology, can solve the problems of adhesion and stains of the outer jacket protection material, poor antifouling performance of the outer jacket protection material, etc., achieve good chemical stability, and improve oil resistance. and water stain resistance, the effect of improving stain resistance

Inactive Publication Date: 2021-06-22
SHENZHEN TARGE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the above-mentioned related technologies, the inventor believes that when the jacket protective material is applied to the earphone cable, the jacket protective material is prone to sticking to stains during use, resulting in relatively poor antifouling performance of the jacket protective material

Method used

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  • Earphone wire material and preparation process thereof
  • Earphone wire material and preparation process thereof
  • Earphone wire material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0037] Preparation of modified polyvinyl alcohol: put a beaker containing 1kg of water into a constant temperature oil bath, adjust the temperature of the constant temperature oil bath to 95°C, weigh the polyvinyl alcohol dissolved in water according to the ratio in Table 2, Add emulsifier and initiator and stir to dissolve, add hexafluorobutyl methacrylate, stir and react at constant temperature for 45 minutes, take out the beaker and put it in an oven at 80°C for 2 hours to evaporate to obtain modified polyvinyl alcohol;

[0038] Preparation of finished products: put modified polyvinyl alcohol, TPU resin, POE and fillers into an internal mixer, banbury and blend at 155°C, cool and crush to particles with a particle size of 3-7mm, and crush the particles Put it into an extruder for extrusion granulation. The extrusion temperature is 165°C, 160°C, 155°C, 150°C, and 145°C from the discharge port to the feed port in order to obtain the earphone wire material.

Embodiment 5-7

[0040] Preparation of modified polyvinyl alcohol: put a beaker containing 1kg of water into a constant temperature oil bath, adjust the temperature of the constant temperature oil bath to 95°C, weigh the polyvinyl alcohol dissolved in water according to the ratio in Table 2, Add maleic acid to react for 15 minutes, add emulsifier and initiator and stir to dissolve, add hexafluorobutyl methacrylate, stir and react at constant temperature for 45 minutes, then take out the beaker and put it in an oven at 80°C for 2 hours to evaporate to obtain the improved product. non-toxic polyvinyl alcohol;

[0041] Preparation of finished products: put modified polyvinyl alcohol, TPU resin, POE and fillers into an internal mixer, banbury and blend at 155°C, cool and crush to particles with a particle size of 3-7mm, and crush the particles Put it into an extruder for extrusion granulation. The extrusion temperature is 165°C, 160°C, 155°C, 150°C, and 145°C from the discharge port to the feed po...

Embodiment 8

[0043]The difference from Example 7 is that the added filler is zinc oxide.

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Abstract

The invention relates to the technical field of earphone wires, and particularly discloses an earphone wire material and a preparation process thereof. The earphone wire material is prepared from the following raw materials in parts by weight: 50 to 75 parts of TPU resin, 7 to 12 parts of POE, 3 to 6 parts of filler, 8 to 15 parts of polyvinyl alcohol, 5 to 10 parts of hexafluorobutyl methacrylate, 0.2 to 0.4 part of sodium dodecyl benzene sulfonate and 0.1 to 0.5 part of potassium persulfate. The preparation method comprises the following steps: dissolving polyvinyl alcohol in water at 95-100 DEG C, adding an emulsifier and an initiator, stirring and dissolving, adding hexafluorobutyl methacrylate, and reacting at a constant temperature for 45-60 minutes to obtain modified polyvinyl alcohol; banburying and blending modified polyvinyl alcohol, TPU resin, POE and filler at 150-160 DEG C, cooling, crushing, and carrying out extrusion granulation. The earphone wire material can be used as an outer sleeve protection material of an earphone wire metal lead, and has the advantage of relatively better antifouling effect.

Description

technical field [0001] This application relates to the technical field of earphone wires, more specifically, it relates to an earphone wire material and its preparation process. Background technique [0002] The earphones can receive electrical signals from a media player or receiver, and use the internal metal transmission line to convert the electrical signal into audible sound waves. In order to protect the metal transmission line from damage, it will be covered with a layer of protective material. Most of the coat protection materials in the related art are made of plastic material, and the coat protection material made of TPU material is especially popular because of its soft and delicate feel and good elasticity. [0003] The patent document with the application number 201610466643.4 discloses a flexible cable for data lines. The cable includes a plurality of copper wires and a sheath protection material sheathed on the copper wires. The sheath protection material is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/08C08L29/04C08K13/04C08K7/14C08K3/04C08K3/22C08F8/18C08F16/06
CPCC08L75/04C08F8/18C08L2205/03C08K2003/2296C08L2203/202C08L23/0815C08L29/04C08K13/04C08K7/14C08K3/042C08K3/22C08F16/06
Inventor 刘国清黄斌桂玉林
Owner SHENZHEN TARGE IND CO LTD
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