Talc powder mainly contains magnesium silicate, with MgO31.7%, silicon oxide 63.5%, and water 4.8%. Usually, a portion of MgO is replaced by FeO. In addition, it also contains impurities such as alumina. Rich in colors, including white, gray green, milky white, light red, light blue, light gray, and some with pearl or fat luster. 

As an important functional filler in coatings, the transparency of talcum powder directly affects the visual effect and optical performance of the coating. This article systematically analyzes the influence mechanism of talcum powder transparency, key determining factors (such as purity, particle size, morphology), and their specific effects on coating coverage, gloss, and color presentation.

This study focuses on the key technical bottleneck of regulating the diameter to thickness ratio of talc powder, and systematically explores the preparation mechanism of coarse-grained large diameter to thickness ratio talc powder based on interlayer van der Waals force failure. By comparing the energy efficiency, diameter to thickness ratio, and industrialization cost of traditional airflow grinding/steam grinding processes with new interlayer stripping technologies, the limitations of existing processes in China were revealed. 

One of the characteristics of powder is particle size distribution. What is particle size distribution? This concept and its application development originated from the mining industry, where ores undergo various beneficiation processes after crushing. Therefore, the shape and size of particles have a significant impact on beneficiation processes and equipment.

We often hear about 1250 mesh, 800 mesh, and 400 mesh talc powder in the powder industry. So, what is the unit of measurement for this' mesh '? Is it appropriate to use it to describe the fineness of the powder? This article will trace back to this concept and its corresponding models.

As an important inorganic filler in the field of plastic modification, talc powder has a significant impact on the mechanical properties, processability, and functional characteristics of polymer composites due to its particle size parameters. After more than ten years of technological research, Liaoning Xinda Talc Group Co., Ltd. has established a modification system based on particle size morphology interface synergistic regulation, revealing the reinforcement mechanism of talc powder with different particle sizes in matrices such as polypropylene (PP) and polyethylene (PE). 

Talc powder, as a key inorganic filler, plays a crucial role in water-based coatings. However, the calcium content in talc powder may have a negative impact on the performance of the coating. This study explores in depth the sources, mechanisms of action, and solutions of calcium, aiming to clarify the specific impact of calcium content in talc powder on the performance of water-based coatings and provide technical reference for the coating industry. Through measures such as raw material control, formula optimization, and process improvement, the adverse effects of calcium impurities on coating performance can be effectively reduced, and the application effect of talc powder in water-based coatings can be improved.

This article focuses on the application and advantages of ultrafine talc powder with high aspect ratio in polypropylene plastics. Firstly, the sheet-like structure and bonding method of talc powder were introduced, and then the technical difficulties in the production process were analyzed. Subsequently, based on the research and development achievements of Liaoning Xinda Talc Group R&D Center, the significant effect of its 3000 mesh talc powder in protecting large scales was introduced, and the superior diameter to thickness ratio of its talc powder was demonstrated through comparative images. Finally, the practical application effects and market feedback of high aspect ratio talc powder in plastics were summarized.

Liaoning Xinda Talc Group Co., Ltd. was established in 1995 and is an enterprise group that integrates talc mining, sorting, research and development, deep processing, and sales.