Views: 0 Author: Site Editor Publish Time: 2022-09-02 Origin: UTPE
According to official news: On September 6, Huawei will release the new mobile phone HUAWEI Mate50, and then on September 8, Apple will also release the new mobile phone iPhone14.Will you choose Huawei or Apple?
However, as Apple's mobile phones are now not equipped with headphones and charging heads, in contrast, domestic mobile phones are really conscientious!The slogan of supporting domestic products is getting louder and louder now!
In our daily life, the charging cable is an essential tool for daily life.
As small as earphones, mobile phone charging cables, as large as refrigerators, air conditioners and other household appliances plug cables...
Most of them consist of a solid metal wire wrapped in a soft white or black rubber.
So, have you ever noticed what kind of material the soft glue is wrapped around the charging cable or the headphone cable?
This layer of soft glue is actually a TPE material, which is composed of thermoplastic elastomers such as SEBS, SBS, etc. This wire has many advantages, such as soft touch, high elasticity, mild texture, oil resistance, weather resistance, aging resistance, bending resistance, resistance Ozone etc.
With the advent of the era of environmental protection, TPE materials are coming strongly. Many earphones and data cable plugs and connectors use TPE as raw materials!
Thermoplastic elastomers, as polymer composite materials, have become a hotspot in application. Due to their high weather resistance, thermal stability, convenient processing, and energy-saving economy, they have gradually been popularized. In particular, the new TPE materials for wires and cables have flexibility. Excellent, high-quality texture, good insulation, halogen-free flame retardant grade, in line with ROHS, UL standards, safety and environmental protection characteristics.
In terms of physical properties
TPE has excellent electrical insulation performance, good weathering and aging resistance, good flexibility and high strength, and has a wide operating temperature range. It is an excellent material for making wire and cable sheaths and insulating tapes.
Its cost is lower than that of polyester or polyurethane thermoplastic elastomers. TPE can replace vulcanized rubber, PVC, cross-linked polyethylene, etc., and has excellent performance in insulating sheaths for battery cables, transformer cables, and instrument wires.TPE has broad application prospects in electric wires and shows strong competitiveness.
From the manufacturing process
TPE has superior processing characteristics and can be directly extruded by an extruder, which simplifies the production process, improves production efficiency, and reduces production costs and energy consumption.In addition, the colorability of TPE wire material is good. When there are requirements such as black and brown DC circuit positive wires for some internal wires, and blue is commonly used for DC circuit negative electrodes, cables with wire colors can be made, so that for each wire can make a good distinction.At the same time, TPE has good mechanical properties, and the elongation rate reaches more than 400%.
From an environmental point of view
The PVC material uses an injection molding machine, the plasticizer contains DOP, there is a stench during the processing, it is easy to pollute the environment, and the waste disposal method is strict.However, TPE environmental protection cables have the characteristics of non-toxic and non-polluting to people and the environment, high safety and reliability, long service life, easy disassembly and recycling, and other characteristics, which will become the mainstream of the cable market in the future.
It is used for the production of TPE rubber compound for extruding the outer cover of the earphone cable. It mainly affects the smoothness of the TPE material, the tensile strength of the rubber compound, and the excellent coloring performance: the pigment is dispersed evenly, no flow marks, no fading, and the rubber and core The adhesion of the wire has its requirements.
Therefore, the formulation and physical properties of the TPE compound used to produce extruded headphone cables, especially high-end headphone cables, are more particular.In terms of hardness, the headphone cable material generally uses TPE rubber with a hardness of ShoreA 65~80 degrees.For the appearance of the outer quilt of the headphone cable, there are glossy surfaces and matte surfaces (matte surfaces).
The test shows that the elasticity of the TPE wire is three times that of the ordinary cable, and the low temperature resistance is 2.5 times that of the ordinary cable, and the problem of embrittlement and cracking will not occur in winter!
