Silicone oil usually refers to linear polysiloxane products that remain liquid at room temperature. They are generally colorless (or light yellow), tasteless, non-toxic and non-volatile liquids. Their molecular weight is not high, at room temperature for the flow state, so it is usually called silicone oil. It is not used purely, but is made with a special formula, often as an auxiliary material to perform a certain function. Generally speaking, there are three basic forms of silicone oil on the market: pure silicone oil, solution and emulsion.
First, pure silicon oil has very strong stability, heat resistance, frost resistance, good storage, high flash point and high ignition point, few storage and transportation problems;
Second, in fact, often need to dilute silicone oil solution, sometimes want to join the activity in a solution of auxiliary agent, catalyst, crosslinking agent, etc.) in order to facilitate the storage and use, according to the need, aliphatic or chlorinated hydrocarbons, aromatic compounds can be used as solvent, under special circumstances to use other kinds of solvents, generally polysiloxane polymer solution, the concentration to 35% only, otherwise the viscosity is too large;
Third, a large part of silicone oil or silicone oil containing products is made into emulsion form, compared with solvent silicone oil, it has the advantages of cheap, not easy to burn, harmless to health and so on. Different from solvent, all silicone emulsions are "oil in water" type heterogeneous system, its external closed phase is water phase, silicone oil dispersed in the water phase in very small droplets, easy to dilute with water to the desired concentration for application, the stability of this emulsion can be achieved by making the droplets as small as possible and the stabilizing effect of emulsifier.
Silicone oil in textile and garment industry can be used as fabric softener, lubricant, waterproof agent, finishing agent and so on. In order to meet the high-end demand of textiles, chemical manufacturers are also constantly developing silicone oil that can be used in bath with various functional additives such as water-proofing agent, flame retardant, antistatic agent and color fixing agent. In addition, in order to improve the performance of the fabric, there are silicone products that can be used in the same bath with dyeing, cotton silicone oil with cool feeling, silicone products that can improve the feel of the fabric, and silicone darkening agents that can give the fabric excellent darkening effect, good storage stability, does not affect the color fastness, feel good, etc. In addition to functional textiles as additives in textiles, silicone products will also be used in other areas of textiles, such as silicone and polyurethane combination to form fabric coating; Printing of fabric formed by polymerization of silicone and acrylic acid; Organic silicon and organic fluorine combined to form waterproof coating on fabric surface.
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