Effects of talcum powder: clearing heat, seeping dampness, and inducing diuresis. It is used for treating summer heat and thirst, dysuria, watery diarrhea, hot diarrhea, gonorrhea, jaundice, edema, epistaxis, foot fungus, and wet skin rot.

The role of talc:

1, the role of protecting the skin and mucous membranes. Talc due to small particles, the total area is large, can absorb a large number of chemical irritants or poisons, so when spread on the surface of the inflamed or broken tissue, there can be a protective effect; internal use in addition to the protection of inflammation of the gastrointestinal mucosa and play the role of antiemetic, antidiarrheal effect, but also prevent the absorption of poisons in the gastrointestinal tract.

2, antibacterial effect. With the plate method so that the culture medium containing 10% talc, typhoid fever bacteria and paratyphoid fever A bacillus has an inhibitory effect; with the paper method only meningococcal meningitis bacteria have a mild inhibitory effect.

Talcum powder production principle

High-speed mixer heating system shall be used oil bath thermostatic heating, should not be used far infrared heater direct heating mode, to avoid uneven heating of the material and yellowing. Talcum powder in the high-speed mixer due to small particle size, unactivated powder surface area is large, easy to produce flying dust, therefore, the sealing of the high mixing machine should be given great attention.

Twin-screw extrusion granulator group in the talc transparent modified masterbatch production applications, the use of low-temperature, low-pressure, low shear, multi-mixing processing technology, temperature control should be lower than the calcium carbonate filler modified masterbatch, can be spaced apart using 4-5 groups, each group of two 45 ° of the staggered angle of the mesh block, so that the material in the mixing to minimize the high-intensity shear, to maintain the flake structure of the talcum powder, reducing the Laminar structure of the peeling.

In the production of talc transparent enhancement modification masterbatch, shear force is too strong will also destroy the talc lamellar structure, activated talc in the temperature, pressure, shear, friction, etc., lamellar material peeling off, affecting dispersion effect and product whiteness, transparency. The use of appropriate arrangement of threaded elements can reduce the volatilization of low molecular materials, to maintain the physical properties of synthetic resins, inorganic powders.

Baidu Encyclopedia - Talcum Powder