Why do Cavosmart bracelet wristband materials mostly use TPU or TPE? For example, Cavo V10, V08 wireless headphones with wristband, V07s is made of TPU, and V05c strap is made of TPE.
Today, the materials of smart wristbands on the market are nothing more than three materials, namely, TPE, silica gel and TPU. Generally speaking, Positioning in high-grade bracelets are medical grade TPE or TPU materials. These two materials are not only environmentally friendly and tasteless, but also not harmful to human body.
first of all, TPU is the main material for making clear water cover and thermoplastic polyurethane elasticity. The acronym. TPU of body rubber, as an elastomer, is a kind of material between rubber and plastics. It belongs to plastics. The product is made by injection molding process, that is, after warming up a grain of plastic rice, The product is made from the injection of the barrel into the plastic mould.
Advantages: high wear resistance, good flexibility, high strength, oil resistance, water resistance, mold resistance, cold resistance outstanding.
Deficiency: easy to deform, easy to turn yellow.
Viewed from the outside, the TPU can be made very transparent. And silica gel can not, the most transparent are very hazy like a thick fog that kind of feeling. Precisely because of the transparent feeling of TPU, now more popular They are welcome.
Moreover, TPU products appear to be of high grade, can be more selective, and have more pattern changes than silica gel.
Therefore, taken together, TPU can cope with many common use scenarios in life, with high performance-to-price ratio.
TPE is the abbreviation for thermoplastic elastomer materials. The elastomer is generally low modulus, flexible, can be at least 2 times elongated at room temperature and under external force traction and can rebound to the original shape of the material.
Advantage: TPE feel better than TPU, easy to shape, better tactile than other materials, The properties of elasticity and scrape resistance are good, and TPE materials do not introduce heavy metals in the production process, and pass through the skin. Sensitivity test, very suitable for making smart bracelet wristband.
Like rubber with high elasticity, high strength, high resilience, but also injection molding processing materials. It is environmentally friendly, non-toxic, safe, wide range of hardness, excellent coloring, High temperature resistance and fatigue resistance, soft tactile, weather resistance, superior processability, no vulcanization, can be recycled to reduce cost, and can be used to achieve secondary injection molding.
Deficiency: the heat resistance of TPE is not as good as that of rubber. As the temperature rises, the physical property is greatly reduced, so the scope of application is limited.
Considering the characteristics and cost of TPE material, we can position it as the raw material of middle and high end bracelet and wristband.
Personal opinion, I think the smart fitness tracker is on the hand for a long time to contact with the human skin. The biggest feature of TPU and TPE smart wristband is the characteristics of environmental protection and innocuity. So I think TPU and TPE are the two most suitable materials for making wristband material.