What is the difference between TPU material and silica gel material?
[TPU material and silica gel material distinction] two are insoluble in water and any solvent, non-toxic, tasteless, chemical stability, with higher mechanical strength of new materials. But there is a big difference between the two. The difference is as follows:1, the most obvious difference: TUP material is hard, silicone material is soft;2 、 TPU material is superior to silica gel in abrasion resistance, shock resistance and shock absorption;3, silicone material is soft, poor elasticity, more sticky hands; TUP material is the opposite;4, TUP material aging resistance is stronger than silica gel material;5, silica gel easy greasy, at the same time, material is slightly worse, easy to ash and ash; TPU material cold resistance prominent, oil resistance, water resistance, mildew resistance;6, TUP material is more yellow than silica gel material.
[TPU] is the abbreviation of Thermoplastic Urethane, and the Chinese name is thermoplastic polyurethane elastomer. It is composed of two diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI) and other low molecular isocyanate molecules and polyols and Polyols (chain extender) polymer material co polymerized reaction. Its molecular structure is composed of two diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI) and chain extender is a rigid block and two diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI), diisocyanate molecules and flexible segment polyol anti should be composed of alternating. TPU is a mature environmentally friendly material with outstanding high tensile, tensile, tough and aging properties.
[alias]: silica gel, silica gel is a kind of high active adsorption material, belonging to the amorphous material, its molecular formula is mSiO2 nH2O; in addition to alkali, hydrofluoric acid does not react with any material, insoluble in water and any solvent, non-toxic, chemically stable. Different types of silica gel have different microporous structures because of their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics which are difficult to be replaced by other similar materials: high adsorption properties, good thermal stability, stable chemical properties, high mechanical strength, etc..
