Specific mehtod use of silane coupling agent

How to use silane coupling agent Specificly, here are two specific method of use

(1) Pre-packing method

The solid filler into the blender (high-speed solid mixer HENSHEL (Henschel) or V-type solid mixer, etc.), and the silane solution is sprayed directly on the packing and mixing, the higher the speed, the better dispersion. General stirring for 10-30 minutes (slower, longer), filler treatment after drying should be at 120 degrees Celsius (2 hours).

(2) an aqueous solution of a silane coupling agent

(Glass fiber surface treating agent): glass fiber surface treatment agent normally comprises: a film forming agent, an antistatic agent, a surfactant, a coupling agent, water. The coupling agent is generally used in an amount of 0.3% -2% of the total treatment agent glass surfaces, the first aqueous solution 5 times with an organic acid or salt PH value is adjusted to a certain value, under sufficient stirring, a silane was added until clear, then adding the remaining ingredients, for poorly soluble silane, isopropyl alcohol available solubilization. In the drawing process in the glass surface treatment agent is sprayed on the glass and dried to remove the solvent and water.

(3) underside Act

5% -20% of the silane coupling agent was the same described above, by coating, brushing, spraying, dipping treatment substrate surface, to dry out at room temperature for 24 hours, preferably baked at 120 ℃ in 15 minutes.

(4) Direct Addition

Silane may be added directly to the filler / resin mixture, the resin and filler are mixed, the silane in the blend can be directly sprayed. Coupling agent is generally used in an amount of 0.1% -2% filler loading, (according to the diameter of the filler decision). Was then added over a silane resin / filler molding (extrusion, compression molding, coating and the like).