The effect of coupling agent on the quality of synthetic aminosilicone oils
1、602 coupling agent
602 is the most commonly used silane coupling agent, with the advantages of good handfeel, strong versatility for all kinds of fabrics, and the disadvantage of large yellowing, the application is greatly restricted.
2、KH550
Used in the production of amino silicone oil coupling agent can not add water, usually used in emulsion polymerization in large quantities, the advantages of small yellowing with self-crosslinking high resilience, used for smooth resilience stiff finishing.
3、Piperazine coupling agent
Because the amino group in piperazine-based coupling agent is not exposed, it has the characteristics of small yellowing and semi-hydrophilic, and it is used in a large number of cotton fabrics and acrylics, human cotton finishing.
4、Tri-ammonia piperazine
Triaminopiperazine has one more group than piperazine coupling agent, so it has more fluffy performance, and it is used in cotton and human cotton fluffy finishing.
5、560 coupling agent
560 coupling agent is a self-crosslinking coupling agent with epoxy group, no yellowing of fabric finishing, most of them are used in emulsion polymerization, and the fabrics after finishing are dry, smooth and elastic.
Selection of emulsifier
1、TO isomerized tridecanol series
As TO series has strong emulsification penetration performance, a large number of emulsifiers used as a smoothing agent wool mercerizing softener, etc., the disadvantage of TO series emulsification of amino silicone oil cation polarity is strong, easy to Bo color, sticky rollers, in the long car finishing agent less used.
2、XL isomerized decanol series
The emulsification penetration is moderate, and it is widely used in cotton and chemical fiber finishing agent.
3、Fatty alcohol AEO series
Emulsification penetration is poor, especially for cotton fabric softener can reduce the phenomenon of sticky roller.
4, the choice of emulsifier in the smooth softener is crucial, generally in a smooth softener in the choice of two series of more ideal results.
Ice sensation silicone oil ice sensation additives
Ice feeling silicone oil ice feeling from where, is the silicone oil emulsion added to the non-volatile, boiling point of 200 ℃ above the solvent, such as and ethylene glycol monobutyl ether, the boiling point of 230 ℃; white oil, alias paraffin oil, white oil, mineral oil, boiling point ≥ 250 ℃; Glycerin is generally used in the industrial glycerin, industrial glycerin as raw material for the synthesis of acrylic, the resulting glycerin is called synthetic glycerin, the boiling point is 290 ℃. Add one or more non-volatile solvents in the silicone oil emulsion, used for fabric finishing, fabric surface adsorbed silicone oil emulsion after high temperature setting, and the hydroxyl reaction of the fiber surface, combined with the film, the adsorbed solvent is still residual on the surface of the fiber, which embodies the feeling of ice-cold. When the fiber after washing, this feeling is gone, so it is not washable!
