The Four Characteristics of Amino-Silicone Oil
Amino silicone oil has four important parameters: ammonia value, viscosity, reactivity and particle size. These four parameters basically reflect the quality of amino silicone oil and it will greatly affect the style of the treated fabric, such as hand-feeling, whiteness, light color, and the complexity of silicone oil emulsion. I. Ammonia value Most of the properties, such as softness, smoothness, and fullness on the fabric are mostly caused by amino groups in polymers. The amino content can be expressed by an ammonia value, which refers to the consumption number of 1 normal concentration of hydrochloric acid required for neutralization of the 1G amino silicone oil. Therefore, the ammonia value is directly proportional to the mole percent of amino group in silicone oil. But the active hydrogen in the amino is easy to be oxidized and form chromophore, which will cause the fabric yellowing or slightly yellow light. For the same amino group, with the increase of the amino c...