Silibase is one of the leading & professional manufacturers specialized in producing all kinds of SILICONE BASED new materials.
Silibase technique team always focus on quality first and insist on developing new products.
Silibase people will serve you the best before and after sale.
Aug 3, 2016
Usually ammonia value, viscosity andreactivity of three parameters to characterize the molecular structure of aminosilicone oil.
(1) Amine value
Amino silicone oil to produce soft fibers,smoothing effect, largely related to the number of amino groups in themolecule. Ammonia is a value characterizing the form of amino group content,namely the amino silicone and 1g consumed concentration 1mol • L-1volume of hydrochloric acid. Fabric softening agent used as the N-β- aminoethyl-γ- aminopropyl methylsiloxane and dimethylsiloxane copolymer ammonia value isgenerally between 0.2 and 0.6. An amino content of common parameters as well asthe mass fraction of amino, amino-modified rate and ammonia equivalents. Whenthe formula [V] in the m = 650, n = 4, R = -CH3, the molar mass coefficientamino silicone is 49000g • mol-1. An amino group content of 0.26%,was 0.30 percent amino-modified, amino equivalent weight of 6,125.
(2) Viscosity
Viscosity silicone oil in a large fibersurface film is good, feel, flexibility Ye Hao. Used as a softening agent aminosilicone oil viscosity is generally about 1000mPa • s, there are more than1000mPa • S's. Amino silicone oil emulsion prepared softening agent, thepolymer viscosity generally in 100000mPa • s or more.
(3)Reaction type
Terminal amino group may be a methylsilicone molecule may be reactive with hydroxy or methoxy. Amino silicone oilhaving reactive end groups in dealing with fiber, self-crosslinking. Select theappropriate cross-linking, finishing effect will be more soft, smooth andelastic.
About the molecular structure of aminosilicone oil with a soft effect relationship, there have been many discussions.Although the results vary, but the general situation is the low value of theammonia, the viscosity should be raised. Should be based on a variety offabric, grade, set the parameters in order to obtain the best overallperformance.