Recently, a customer inquired about the difference between silicone, TPU and PC materials? It just so happens that Nuofeng, the manufacturer of thermally conductive silicone, has a certain understanding of this, so I will tell you about it today.
Silicone (Silica gel; Silica) alias: Silicone rubber is a highly active adsorption material, which is an amorphous substance, and its chemical formula is mSiO2·nH2O. It is insoluble in water and any solvent, non-toxic and tasteless, chemically stable, and does not react with any substances except strong alkali and hydrofluoric acid. Various types of silica gel form different microporous structures due to different manufacturing methods.
The chemical composition and physical structure of silica gel determine that it has many characteristics that are difficult to replace by other similar materials: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. Silica gel is divided into: macroporous silica gel, coarse-pored silica gel, B-type silica gel, and fine-pored silica gel according to the size of its pore size.
Currently known silicone sleeves are mainly divided into two types, one is organic silica gel and the other is inorganic silica gel. At present, the silicone sleeves of digital products on the market basically belong to organic silicone. It has the characteristics of high temperature resistance, good weather resistance (not afraid of ultraviolet light or ozone decomposition), good insulation, and stable material.
Advantages: low price, high adsorption performance, good buffer performance, not easy to wear, more comprehensive protection, environmental protection.
TPU is the main material for making clear water jackets. It is the abbreviation of Thermoplastic Urethane thermoplastic polyurethane elastomer. The so-called elastomer refers to a polymer with a glass transition temperature lower than room temperature, elongation at break > 50%, and good recovery after external force removal. Material. Polyurethane elastomers are a special category of elastomers. Polyurethane elastomers have a wide range of hardness and performance, so polyurethane elastomers are a type of polymer material between rubber and plastic. It can be heated and plasticized, with no or little cross-linking in its chemical structure, and its molecules are basically linear, but there are certain physical cross-linking. This type of polyurethane is called TPU.
Advantages: high wear resistance, high strength, oil resistance, good flexibility.
PC is the abbreviation of polycarbonate, the English of polycarbonate is Polycarbonate, referred to as PC engineering plastics, PC material is actually one of the engineering plastics we call, as a material widely used in the world, PC has its own PC is an amorphous thermoplastic resin with excellent comprehensive properties, with excellent electrical insulation, elongation, dimensional stability and chemical resistance, high strength, heat resistance and cold resistance. ; It also has the advantages of self-extinguishing, flame retardant, non-toxic, and colorable. You can see the shadow of PC plastic in every corner of your life. The characteristics of large-scale industrial production and easy processing also make it extremely cheap.
Advantages: good light transmittance, strong hardness, drop resistance, good toughness
The above is an introduction to the differences between silicone, TPU and PC materials and their advantages. I hope it can help you. If you need to know more about silicone, please go to www.coolthermo.com and look forward to meeting you.