Energy Strategy Associates Inc. has a new ultrafine, high-purity amorphous silica powder that can reduce cycle time in injection molding.
Nan-O-Sil is an effective processing aid for unfilled nylon 6, glass-filled nylon 6/6, ABS and polypropylene, according to Energy Strategy of Old Chatham, N.Y. In such resins it cuts cycle time by 20 to 30 percent. Other benefits include improved tensile strength, flexural modulus and color dispersion.
The high-purity colloidal silica is made through high-temperature hydrolysis in a hydrogen-oxygen flame. The discrete particles are spherical in shape and in a size range of about 0.02 to 0.55 microns.
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